前言

  • 在 iOS 开发中,一般情况下,简单的向某个 Web 站点简单的页面提交请求并获取服务器的响应,用 Xcode 自带的 NSURLConnection 是能胜任的。但是,在绝大部分下我们所需要访问的 Web 页面则是属于那种受到权限保护的页面,并不是有一个简单的 URL 可以访问的。这就涉及到了 Session 和 Cookie 的处理了,在此时使用 NSURLConnection 也是能够达到要求的,只是其中处理起来的复杂度和难度就提升了。为了更好的处理向 Web 站点的请求,包括处理 Session,Cookie 等细节问题,使用 AFNetworking 则是更好的选择。

    • 1) Session:中文有译作时域的,就是指某个客户端从访问服务器起到停止访问这一段的时间间隔被称为时域。
    • 2) Cookie:由服务器发送给客户端,把 Cookie 的 key:value 值储存在本地文件夹下,当下次请求的时候能够直接发送 Cookie 获得权限验证。

1、AFNetworking

1.1 AFNetworking 特点

  • AFNetworking 是一个讨人喜欢的网络库,适用于 iOS,Mac OS X 以及 Watch OS。
  • AFNetworking 构建在 NSURLSession,NSOperation,以及其他熟悉的 Foundation 技术之上。它拥有良好的架构,丰富的 API,以及模块化构建方式,使得使用起来非常轻松。
  • AFNetworking 可以用于发送 HTTP 请求,接收 HTTP 的响应,但是不会缓存服务器的响应,不能执行 HTML 页面中的 JAvascript 代码。
  • AFNetworking 内置支持 JSON,Plist 文件和 XML 文件的半自动序列化和反序列化,可以对 JSON 格式的请求响应数据自动做反序列化,XML 格式数据需要手动反序列化,使用比较方便。
  • AFNetworking 中回调函数将在主线程中进行,程序员不需要关心线程间通讯问题。
  • AFNetworking 具有完善的错误处理机制。

1.2 AFNetworking 官方使用建议

  • 建立 AFHTTPSesssionManager 的单例子类,统一管理全局的所有网络访问。

    • NetworkTools.h

          #import <AFNetworking/AFNetworking.h>
      
          @interface NetworkTools : AFHTTPSessionManager
      
          + (instancetype)sharedNetworkTools;
      
          @end
    • NetworkTools.m

          @implementation NetworkTools
      
          + (instancetype)sharedNetworkTools {
      static NetworkTools *tools; static dispatch_once_t onceToken;
      dispatch_once(&onceToken, ^{ // baseURL 的目的,就是让后续的网络访问直接使用 相对路径即可,baseURL 的路径一定要有 / 结尾
      NSURL *baseURL = [NSURL URLWithString:@"http://c.m.163.com/"]; NSURLSessionConfiguration *config = [NSURLSessionConfiguration defaultSessionConfiguration]; tools = [[self alloc] initWithBaseURL:baseURL sessionConfiguration:config]; // 修改 解析数据格式 能够接受的内容类型 - 官方推荐的做法,民间做法:直接修改 AFN 的源代码
      tools.responseSerializer.acceptableContentTypes = [NSSet setWithObjects:@"application/json",
      @"text/json",
      @"text/javascript",
      @"text/html",
      nil];
      });
      return tools;
      } @end

1.3 AFNetworking 系统需求

AFNetworking Version Minimum iOS Target Target Notes
3.x iOS 7 Xcode 7+ is required. NSURLConnectionOperation support has been removed.
2.6 -> 2.6.3 iOS 7 Xcode 7+ is required.
2.0 -> 2.5.4 iOS 6 Xcode 5+ is required. NSURLSession subspec requires iOS 7 or OS X 10.9.
1.x iOS 5  
0.10.x iOS 4  

1.4 AFNetworking 框架结构

  • 1) V 2.5.4:

        NSURLConnection                                             对 NSURLConnection 网络请求的封装(iOS 9.0 DEPRECATED)
    
            AFURLConnectionOperation
    AFHTTPRequestOperation
    AFHTTPRequestOperationManager NSURLSession 对 NSURLSession 网络请求的封装(iOS 7.0 AVAILABLE) AFURLSessionManager
    AFHTTPSessionManager Serialization 序列化 & 反序列化 格式 <AFURLRequestSerialization> 发送给服务器的数据格式(序列化)
    AFHTTPRequestSerializer 二进制 默认
    AFJSONRequestSerializer JSON POST JSON
    AFPropertyListRequestSerializer Plist 苹果专有,极少用 <AFURLResponseSerialization> 从服务器接收的数据格式(反序列化)
    AFHTTPResponseSerializer 二进制
    AFJSONResponseSerializer JSON 默认
    AFXMLParserResponseSerializer XMLParser SAX 解析
    AFXMLDocumentResponseSerializer (Mac OS X) XMLDocument DOM 解析
    AFPropertyListResponseSerializer Plist 苹果专有,极少用
    AFImageResponseSerializer Image 图片
    AFCompoundResponseSerializer Compound 组合的 Additional Functionality 辅助功能 AFSecurityPolicy 安全策略
    AFNetworkReachabilityManager 网络状态监测 UIKit+AFNetworking AFNetworking 为相应的 UIKit 控件添加的分类。
  • 2) V 3.1.0:

        NSURLSession                                                对 NSURLSession 网络请求的封装(iOS 7.0 AVAILABLE)
    
            AFURLSessionManager
    AFHTTPSessionManager Serialization 序列化 & 反序列化 格式 <AFURLRequestSerialization> 发送给服务器的数据格式(序列化)
    AFHTTPRequestSerializer 二进制 默认
    AFJSONRequestSerializer JSON POST JSON
    AFPropertyListRequestSerializer Plist 苹果专有,极少用 <AFURLResponseSerialization> 从服务器接收的数据格式(反序列化)
    AFHTTPResponseSerializer 二进制
    AFJSONResponseSerializer JSON 默认
    AFXMLParserResponseSerializer XMLParser SAX 解析
    AFXMLDocumentResponseSerializer (Mac OS X) XMLDocument DOM 解析
    AFPropertyListResponseSerializer Plist 苹果专有,极少用
    AFImageResponseSerializer Image 图片
    AFCompoundResponseSerializer Compound 组合的 Additional Functionality 辅助功能 AFSecurityPolicy 安全策略
    AFNetworkReachabilityManager 网络状态监测 UIKit+AFNetworking AFNetworking 为相应的 UIKit 控件添加的分类。
  • 3)NSURLConnection 网络请求封装:

        iOS 9.0 DEPRECATED
    
        1> AFHTTPRequestOperationManager:
    
            属性:
    requestSerializer :设置请求的数据格式
    responseSerializer :设置响应的数据格式 reachabilityManager :网络连接状态管理器,监控网络连接状态 方法:
    HTTPRequestOperationWithRequest:如果需要在请求中设置额外的属性,例如:身份验证,提前准备好 request ,调用此方法就可以了 manager :实例化 HTTP Reuqest 管理器 GET :GET 请求
    HEAD :HEAD 请求
    POST :POST 请求,constructingBodyWithBlock:POST 上传文件用的
    PUT :PUT 请求
    PATCH :PATCH 请求,RESTFul 的一个方法,极少用
    DELETE :DELETE 请求 所有的方法:参数字典
    成功回调
    失败回调
    URL 都是使用字符串来传递的
  • 4) NSURLSession 网络请求封装:

        iOS 7.0 AVAILABLE
    
        1> 说明:
    
            基于指定的 NSURLSessionConfiguration 创建并管理一个 NSURLSession 对象。
    遵守 NSURLSessionTaskDelegate、NSURLSessionDataDelegate、NSURLSessionDownloadDelegate 和 NSURLSessionDelegate 协议。 2> 初始化: 初始化 :- (instancetype)initWithSessionConfiguration:(NSURLSessionConfiguration *)configuration
    取消 :- (void)invalidateSessionCancelingTasks:(BOOL)cancelPendingTasks; 3> 任务: 数据任务:dataTaskWithRequest: 上传任务:
    从文件上传 :uploadTaskWithRequest:fromFile:
    从数据上传 :uploadTaskWithRequest:fromData:
    从数据流上传 :uploadTaskWithStreamedRequest: 下载任务:
    使用指定的请求创建下载任务 :downloadTaskWithRequest:
    使用续传数据创建下载任务 :downloadTaskWithResumeData: 任务进度:
    上传进度:- (NSProgress *)uploadProgressForTask:(NSURLSessionUploadTask *)uploadTask;
    下载进度:- (NSProgress *)downloadProgressForTask:(NSURLSessionDownloadTask *)downloadTask; 4> 代理回调: <1> 会话代理回调: 设置管理的会话无效回调方法: - (void)setSessionDidBecomeInvalidBlock:(void (^)(NSURLSession *session, NSError *error))block; block 参数:
    session :会话
    error :导致会话无效相关的错误 设置当管理的会话无效时执行的 block。 设置需要身份验证回调方法: - (void)setSessionDidReceiveAuthenticationChallengeBlock:
    (NSURLSessionAuthChallengeDisposition (^)(NSURLSession *session,
    NSURLAuthenticationChallenge *challenge,
    NSURLCredential * __autoreleasing *credential))block; block 参数:
    session :会话
    challenge :身份验证质询
    credential :指向凭据的指针,该凭据用于解决身份验证 block 返回值:
    返回身份验证的配置情况 设置当连接需要身份验证质询时执行的 block。 <2> 任务代理回调: 设置上传流回调方法: - (void)setTaskNeedNewBodyStreamBlock:(NSInputStream * (^)(NSURLSession *session, NSURLSessionTask *task))block; block 返回值:
    要上传文件的 NSInputStream。 设置一个请求体二进制流发送至远程服务器时执行的 block。 设置重定向回调方法: - (void)setTaskWillPerformHTTPRedirectionBlock:(NSURLRequest * (^)(NSURLSession *session,
    NSURLSessionTask *task,
    NSURLResponse *response,
    NSURLRequest *request))block; block 参数:
    session :会话
    task :任务
    response :重定向响应
    request :要重定向的请求 block 返回值:
    返回导致重定向的请求 NSURLRequest 设置 HTTP 请求尝试重定向到其他 URL 时执行的 block。 设置身份验证质询回调方法: - (void)setTaskDidReceiveAuthenticationChallengeBlock:
    (NSURLSessionAuthChallengeDisposition (^)(NSURLSession *session,
    NSURLSessionTask *task,
    NSURLAuthenticationChallenge *challenge,
    NSURLCredential * __autoreleasing *credential))block; block 参数:
    session :会话
    task :任务
    challenge :身份验证质询
    credential :指向解决验证需要使用凭据的指针 block 返回值:
    返回对身份验证请求质询的处置 设置接收到特定身份验证质询时执行的 block。 设置上传进度回调方法: - (void)setTaskDidSendBodyDataBlock:(void (^)(NSURLSession *session,
    NSURLSessionTask *task,
    int64_t bytesSent,
    int64_t totalBytesSent,
    int64_t totalBytesExpectedToSend))block; block 参数:
    session :会话
    task :任务
    bytesSent :本次上传字节数
    totalBytesSent :已经上传的字节数
    totalBytesExpectedToSend :总字节数 设置跟踪上传进度要执行的 block。 设置任务完成回调方法: - (void)setTaskDidCompleteBlock:(void (^)(NSURLSession *session, NSURLSessionTask *task, NSError *error))block; block 参数:
    session :会话
    task :任务
    error :任务执行过程中出现的错误 设置特定任务完成后执行的 block。 <3> 数据任务代理回调: 设置接收到响应回调方法: - (void)setDataTaskDidReceiveResponseBlock:(NSURLSessionResponseDisposition (^)(NSURLSession *session,
    NSURLSessionDataTask *dataTask,
    NSURLResponse *response))block; block 参数:
    session :会话
    dataTask :任务
    response :接收到的响应 block 返回值:
    返回对会话响应的处置 设置数据任务接收到响应时执行的 block。 设置成为下载任务回调方法: - (void)setDataTaskDidBecomeDownloadTaskBlock:(void (^)(NSURLSession *session,
    NSURLSessionDataTask *dataTask,
    NSURLSessionDownloadTask *downloadTask))block; block 参数:
    session :会话
    dataTask :任务
    downloadTask :成为的下载任务 设置数据任务成为下载任务时执行的 block。 设置接收到数据回调方法: - (void)setDataTaskDidReceiveDataBlock:(void (^)(NSURLSession *session, NSURLSessionDataTask *dataTask, NSData *data))block; block 参数:
    session :会话
    dataTask :任务
    data :接收的数据 设置数据任务接收到数据时执行的 block。 设置缓存行为回调方法: - (void)setDataTaskWillCacheResponseBlock:(NSCachedURLResponse * (^)(NSURLSession *session,
    NSURLSessionDataTask *dataTask,
    NSCachedURLResponse *proposedResponse))block; block 参数:
    session :会话
    dataTask :任务
    proposedResponse :建议缓存的 URL 响应 block 返回值:
    返回要缓存的响应 设置确定数据任务的缓存行为执行的 block。 设置入队消息提交回调方法: - (void)setDidFinishEventsForBackgroundURLSessionBlock:(void (^)(NSURLSession *session))block; block 参数:
    session:会话 设置会话的所有入队消息已经被提交时执行一次的 block。 <4> 下载任务代理回调: 设置下载完成回调方法: - (void)setDownloadTaskDidFinishDownloadingBlock:(NSURL * (^)(NSURLSession *session,
    NSURLSessionDownloadTask *downloadTask,
    NSURL *location))block; block 参数:
    session :会话
    downloadTask :下载任务
    location :保存下载文件的临时位置 block 返回值:
    下载文件被移动到的 URL 设置下载任务完成后执行的 block。 设置下载进度回调方法: - (void)setDownloadTaskDidWriteDataBlock:(void (^)(NSURLSession *session,
    NSURLSessionDownloadTask *downloadTask,
    int64_t bytesWritten,
    int64_t totalBytesWritten,
    int64_t totalBytesExpectedToWrite))block; block 参数:
    session :会话
    downloadTask :下载任务
    bytesWritten :本次下载字节数
    totalBytesWritten :已经下载的字节数
    totalBytesExpectedToWrite :总下载字节数 设置跟踪下载进度重复执行的 block,该 block 可能会被调用多次,并在会话管理器操作队列中执行。 设置下载续传回调方法: - (void)setDownloadTaskDidResumeBlock:(void (^)(NSURLSession *session,
    NSURLSessionDownloadTask *downloadTask,
    int64_t fileOffset,
    int64_t expectedTotalBytes))block; block 参数:
    session :会话
    downloadTask :下载任务
    fileOffset :续传下载的文件偏移位置
    expectedTotalBytes :总下载字节数 设置下载任务续传时执行的 blok。 5> 通知: <1> 通知:
    AFNetworkingTaskDidResumeNotification :任务继续通知
    AFNetworkingTaskDidCompleteNotification :任务结束执行通知
    AFNetworkingTaskDidSuspendNotification :任务暂停执行通知
    AFURLSessionDidInvalidateNotification :网络会话无效通知
    AFURLSessionDownloadTaskDidFailToMoveFileNotification :会话的下载任务将临时下载文件移动指定目录发生错误通知 <2> 通知键值:
    AFNetworkingTaskDidCompleteResponseDataKey :任务的原始响应数据
    AFNetworkingTaskDidCompleteSerializedResponseKey :任务响应数据的反序列化对象
    AFNetworkingTaskDidCompleteResponseSerializerKey :响应序列化器用于反序列化响应数据
    AFNetworkingTaskDidCompleteAssetPathKey :与下载任务关联的文件路径
    AFNetworkingTaskDidCompleteErrorKey :与任务或者响应反序列化关联的错误
  • 5) AFNetworking 常用数据格式组合设置:

    • AFN 内置支持 JSON,Plist 文件和 XML 文件的半自动序列化和反序列化,可以对 JSON 格式的请求响应数据自动做反序列化,XML 格式数据需要手动反序列化,使用比较方便。AFN 在反序列化数据之前,会判断服务器返回的 content-Type,如果 content-Type 不符合要求,就放弃反序列化。

    • AFN 默认可以接收的类型:

      • application/json
      • text/json
      • text/javascript
    • 1> 发送二进制数据,接收 JSON,最常用的网络数据格式组合:
      • 发送数据:

        • 二进制数据:AFHTTPRequestSerializer(默认)
      • 接收数据:
        • JSON 数据:AFJSONResponseSerializer(默认)
    • 2> 发送二进制数据,接收 XML:
      • 发送数据:

        • 二进制数据:AFHTTPRequestSerializer(默认)
      • 接收数据:
        • XML SAX 解析:AFXMLParserResponseSerializer
        • XML DOM 解析:AFHTTPResponseSerializer
    • 3> 发送二进制数据,接收二进制数据(下载...):
      • 发送数据:

        • 二进制数据:AFHTTPRequestSerializer(默认)
      • 接收数据:
        • 二进制数据:AFHTTPResponseSerializer
    • 4> 发送 JSON 数据,接收 JSON:
      • 发送数据:

        • JSON 数据:AFJSONRequestSerializer
      • 接收数据:
        • JSON 数据:AFJSONResponseSerializer(默认)
    • 5> 接收 图像:
      • 基本上都使用 SDWebImage,缓存做的比 AFN 的要好一些
  • 6) AFSecurityPolicy 安全策略:

    • NSURLConnection 已经封装了 https 连接的建立、数据的加密解密功能,我们直接使用 NSURLConnection 是可以访问 https 网站的,但 NSURLConnection 并没有验证证书是否合法,无法避免中间人攻击。要做到真正安全通讯,需要我们手动去验证服务端返回的证书,AFNetworking 中 AFSecurityPolicy 封装了证书验证的过程,让用户可以轻易使用,除了去系统信任 CA 机构列表验证,还支持 SSL Pinning 方式的验证。

    • 1> AFSecurityPolicy 安全策略模式:

      • AFSSLPinningModeNone:

        • 这个模式表示不做 SSL pinning,只跟浏览器一样在系统的信任机构列表里验证服务端返回的证书。若证书是信任机构签发的就会通过,若是自己服务器生成的证书,这里是不会通过的。
      • AFSSLPinningModeCertificate:
        • 这个模式表示用证书绑定方式验证证书,需要客户端保存有服务端的证书拷贝,这里验证分两步,第一步验证证书的域名/有效期等信息,第二步是对比服务端返回的证书跟客户端返回的是否一致。
      • AFSSLPinningModePublicKey:
        • 这个模式同样是用证书绑定方式验证,客户端要有服务端的证书拷贝,只是验证时只验证证书里的公钥,不验证证书的有效期等信息。只要公钥是正确的,就能保证通信不会被窃听,因为中间人没有私钥,无法解开通过公钥加密的数据。
    • 2> HTTPS:

      • 代理方法:

            - (void)URLSession:(NSURLSession *)session didReceiveChallenge:(NSURLAuthenticationChallenge *)challenge
        completionHandler:(void (^)(NSURLSessionAuthChallengeDisposition,
        NSURLCredential *))completionHandler
      • 参数:

            NSURLAuthenticationChallenge:身份验证质询
        
                protectionSpace:保护空间,在信任受保护空间中的凭据之前,无法继续后续的网络请求。
        
                NSURLSessionAuthChallengeDisposition:对凭据的处置
        
                NSURLSessionAuthChallengeUseCredential                  :使用指定的凭据。
        NSURLSessionAuthChallengePerformDefaultHandling :默认处理,凭据参数会被忽略。
        NSURLSessionAuthChallengeCancelAuthenticationChallenge :整个请求将被忽略。
        NSURLSessionAuthChallengeRejectProtectionSpace :拒绝本次凭据,尝试下一次验证保护空间。
      • 代码:

            if ([challenge.protectionSpace.authenticationMethod isEqualToString:NSURLAuthenticationMethodServerTrust]) {
        
                NSURLCredential *credential = [NSURLCredential credentialForTrust:challenge.protectionSpace.serverTrust];
        
                completionHandler(NSURLSessionAuthChallengeUseCredential, credential);
        }
  • 7) AFNetworkReachabilityManager 网络状态监测:

    • 状态:

          AFNetworkReachabilityStatusUnknown          = -1,               网络状态未知
      AFNetworkReachabilityStatusNotReachable = 0, 无网络连接
      AFNetworkReachabilityStatusReachableViaWWAN = 1, 无线网络(蜂窝移动网络)
      AFNetworkReachabilityStatusReachableViaWiFi = 2, WiFi 网络
    • 属性:

          networkReachabilityStatus                                       获取网络连接状态
      
          isReachable;                                                    网络是否连接
      isReachableViaWiFi; WiFi 是否连接
      isReachableViaWWAN; 蜂窝网络 是否连接
    • 方法:

          + (instancetype)sharedManager;                                  实例化网络状态监测管理器
      + (instancetype)managerForDomain:(NSString *)domain; 实例化 相对于某个域名 网络状态监测管理器
      + (instancetype)managerForAddress:(const void *)address; 实例化 相对于某个地址 网络状态监测管理器 - (void)startMonitoring; 开启监听网络状态
      - (void)stopMonitoring; 关闭网络状态监听 - (NSString *)localizedNetworkReachabilityStatusString; 获取本地化网络状态字符串 AFStringFromNetworkReachabilityStatus(AFNetworkReachabilityStatus status); 转换网络状态为字符串格式 - (void)setReachabilityStatusChangeBlock:(void (^)(AFNetworkReachabilityStatus status))block; 网络状态改变回调
    • 通知:

          AFNetworkingReachabilityDidChangeNotification                   网络状态改变通知
      AFNetworkingReachabilityNotificationStatusItem 网络状态项

2、AFNetworking 的添加

3、AFNetworking 的设置

  • Objective-C

    • Manager 的创建

          // AFHTTPSessionManager
      
              AFHTTPSessionManager *manager1 = [AFHTTPSessionManager manager];
      
              NSURL *baseURL2 = [NSURL URLWithString:@"http://192.168.88.200"];
      AFHTTPSessionManager *manager2 = [[AFHTTPSessionManager alloc] initWithBaseURL:baseURL2]; NSURL *baseURL3 = [NSURL URLWithString:@"http://192.168.88.200"];
      NSURLSessionConfiguration *config = [NSURLSessionConfiguration defaultSessionConfiguration];
      AFHTTPSessionManager *manager3 = [[AFHTTPSessionManager alloc] initWithBaseURL:baseURL3 sessionConfiguration:config]; // AFURLSessionManager AFURLSessionManager *manager4 = [[AFURLSessionManager alloc]
      initWithSessionConfiguration:[NSURLSessionConfiguration defaultSessionConfiguration]]; // 取消挂起的 task
      [[AFURLSessionManager alloc] invalidateSessionCancelingTasks:YES];
    • URLRequest 的创建

          NSURL *url1 = [NSURL URLWithString:@"http://192.168.88.200:8080/MJServer/video?type=JSON"];
      NSURL *url2 = [NSURL URLWithString:@"http://192.168.88.200:8080/MJServer/video"]; NSString *urlStr = @"http://192.168.88.200:8080/MJServer/video";
      NSDictionary *params = @{@"type":@"JSON"}; // GET 创建方式 NSURLRequest *request1 = [NSURLRequest requestWithURL:url1]; NSURLRequest *request2 = [[AFHTTPRequestSerializer serializer] requestWithMethod:@"GET"
      URLString:urlStr
      parameters:params
      error:NULL]; // POST 创建方式 NSMutableURLRequest *request3 = [NSMutableURLRequest requestWithURL:url2];
      request3.HTTPMethod = @"POST";
      request3.HTTPBody = [@"type=JSON" dataUsingEncoding:NSUTF8StringEncoding]; NSURLRequest *request4 = [[AFHTTPRequestSerializer serializer] requestWithMethod:@"POST"
      URLString:urlStr
      parameters:params
      error:NULL]; NSURLRequest *request5 = [[AFHTTPRequestSerializer serializer] multipartFormRequestWithMethod:@"POST"
      URLString:urlStr
      parameters:params
      constructingBodyWithBlock:^(id<AFMultipartFormData> formData) { } error: NULL];
    • Request 的设置

          AFHTTPSessionManager *manager = [AFHTTPSessionManager manager];
      
          NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:[NSURL URLWithString:@"http://192.168.88.200:8080/MJServer/video?type=JSON"]];
      
          // 设置参数编码方式
      /*
      `NSUTF8StringEncoding` by default
      */
      manager.requestSerializer.stringEncoding = NSUTF8StringEncoding; // 设置缓存策略
      /*
      `NSURLRequestUseProtocolCachePolicy` by default.
      */
      manager.requestSerializer.cachePolicy = NSURLRequestUseProtocolCachePolicy; request.cachePolicy = NSURLRequestUseProtocolCachePolicy; // 设置网络服务类型
      /*
      `NSURLNetworkServiceTypeDefault` by default.
      */
      manager.requestSerializer.networkServiceType = NSURLNetworkServiceTypeDefault; request.networkServiceType = NSURLNetworkServiceTypeDefault; // 设置请求超时时间
      /*
      The default timeout interval is 60 seconds.
      */
      manager.requestSerializer.timeoutInterval = 15; request.timeoutInterval = 15; // 是否允许蜂窝网络访问
      /*
      `YES` by default.
      */
      manager.requestSerializer.allowsCellularAccess = YES; request.allowsCellularAccess = YES; // 设置是否应用默认的 Cookies
      /*
      `YES` by default.
      */
      manager.requestSerializer.HTTPShouldHandleCookies = YES; request.HTTPShouldHandleCookies = YES; // 设置是否使用 Pipelining
      /*
      `NO` by default.
      */
      manager.requestSerializer.HTTPShouldUsePipelining = NO; request.HTTPShouldUsePipelining = NO; // 请求头设置 [manager.requestSerializer setValue:@"iPhone" forHTTPHeaderField:@"User-Agent"]; [request setValue:@"iPhone" forHTTPHeaderField:@"User-Agent"]; // 设置用户验证 [manager.requestSerializer setAuthorizationHeaderFieldWithUsername:@"admin" password:@"adminpasswd"]; NSString *username = @"admin";
      NSString *password = @"adminpasswd";
      NSString *userPasswordString = [NSString stringWithFormat:@"%@:%@", username, password];
      NSData *userPasswordData = [userPasswordString dataUsingEncoding:NSUTF8StringEncoding];
      NSString *base64EncodedCredential = [userPasswordData base64EncodedStringWithOptions:0];
      NSString *authString = [NSString stringWithFormat:@"Basic: %@", base64EncodedCredential]; [request setValue:authString forHTTPHeaderField:@"Authorization"]; // 清除用户验证信息 [manager.requestSerializer clearAuthorizationHeader]; [request setValue:nil forHTTPHeaderField:@"Authorization"]; // 设置请求体
      request.HTTPBody = [@"type=JSON" dataUsingEncoding:NSUTF8StringEncoding]; // 设置请求模式 // 单独设置
      /*
      默认是 GET
      */
      request.HTTPMethod = @"POST"; // 直接设置 NSString *urlStr = @"http://192.168.88.200:8080/MJServer/video";
      NSDictionary *parameters = @{@"type":@"XML"}; NSURLRequest *request1 = [[AFHTTPRequestSerializer serializer] requestWithMethod:@"POST"
      URLString:urlStr
      parameters:parameters
      error:NULL];
    • 设置数据请求格式

          NSString *urlStr = @"http://example.com";
      NSDictionary *parameters = @{@"foo": @"bar", @"baz": @[@1, @2, @3]}; AFHTTPSessionManager *manager = [AFHTTPSessionManager manager]; // 二进制 格式 // POST http://example.com/
      // Content-Type: application/x-www-form-urlencoded // foo=bar&baz[]=1&baz[]=2&baz[]=3 manager.requestSerializer = [AFHTTPRequestSerializer serializer]; // 默认 NSURLRequest *request1 = [[AFHTTPRequestSerializer serializer] requestWithMethod:@"POST"
      URLString:urlStr
      parameters:parameters
      error:NULL]; // JSON 格式 // POST http://example.com/
      // Content-Type: application/json // {"foo": "bar", "baz": [1,2,3]} manager.requestSerializer = [AFJSONRequestSerializer serializer]; NSURLRequest *request2 = [[AFJSONRequestSerializer serializer] requestWithMethod:@"POST"
      URLString:urlStr
      parameters:parameters
      error:NULL]; // Plist 格式 manager.requestSerializer = [AFPropertyListRequestSerializer serializer]; NSURLRequest *request3 = [[AFPropertyListRequestSerializer serializer] requestWithMethod:@"POST"
      URLString:urlStr
      parameters:parameters
      error:NULL];
    • 设置数据响应格式

          AFHTTPSessionManager *manager = [AFHTTPSessionManager manager];
      
          AFURLSessionManager *manager1 = [[AFURLSessionManager alloc]
      initWithSessionConfiguration:[NSURLSessionConfiguration defaultSessionConfiguration]]; // 二进制
      manager.responseSerializer = [AFHTTPResponseSerializer serializer]; // JSON,默认,application/json, text/json, text/javascript
      manager.responseSerializer = [AFJSONResponseSerializer serializer]; // XMLParser,SAX 解析
      manager.responseSerializer = [AFXMLParserResponseSerializer serializer]; // Plist
      manager.responseSerializer = [AFPropertyListResponseSerializer serializer]; // Image
      manager.responseSerializer = [AFImageResponseSerializer serializer]; // Compound
      manager.responseSerializer = [AFCompoundResponseSerializer serializer];
    • AFHTTPSessionManager 请求

          // GET
      
              // DEPRECATED_ATTRIBUTE
      - (nullable NSURLSessionDataTask *)GET:(NSString *)URLString
      parameters:(nullable id)parameters
      success:(nullable void (^)(NSURLSessionDataTask *task, id _Nullable responseObject))success
      failure:(nullable void (^)(NSURLSessionDataTask * _Nullable task, NSError *error))failure; - (nullable NSURLSessionDataTask *)GET:(NSString *)URLString
      parameters:(nullable id)parameters
      progress:(nullable void (^)(NSProgress *downloadProgress))downloadProgress
      success:(nullable void (^)(NSURLSessionDataTask *task, id _Nullable responseObject))success
      failure:(nullable void (^)(NSURLSessionDataTask * _Nullable task, NSError *error))failure; // HEAD - (nullable NSURLSessionDataTask *)HEAD:(NSString *)URLString
      parameters:(nullable id)parameters
      success:(nullable void (^)(NSURLSessionDataTask *task))success
      failure:(nullable void (^)(NSURLSessionDataTask * _Nullable task, NSError *error))failure; // POST // DEPRECATED_ATTRIBUTE
      - (nullable NSURLSessionDataTask *)POST:(NSString *)URLString
      parameters:(nullable id)parameters
      success:(nullable void (^)(NSURLSessionDataTask *task, id _Nullable responseObject))success
      failure:(nullable void (^)(NSURLSessionDataTask * _Nullable task, NSError *error))failure; - (nullable NSURLSessionDataTask *)POST:(NSString *)URLString
      parameters:(nullable id)parameters
      progress:(nullable void (^)(NSProgress *uploadProgress))uploadProgress
      success:(nullable void (^)(NSURLSessionDataTask *task, id _Nullable responseObject))success
      failure:(nullable void (^)(NSURLSessionDataTask * _Nullable task, NSError *error))failure; // DEPRECATED_ATTRIBUTE
      - (nullable NSURLSessionDataTask *)POST:(NSString *)URLString
      parameters:(nullable id)parameters
      constructingBodyWithBlock:(nullable void (^)(id <AFMultipartFormData> formData))block
      success:(nullable void (^)(NSURLSessionDataTask *task, id _Nullable responseObject))success
      failure:(nullable void (^)(NSURLSessionDataTask * _Nullable task, NSError *error))failure; - (nullable NSURLSessionDataTask *)POST:(NSString *)URLString
      parameters:(nullable id)parameters
      constructingBodyWithBlock:(nullable void (^)(id <AFMultipartFormData> formData))block
      progress:(nullable void (^)(NSProgress *uploadProgress))uploadProgress
      success:(nullable void (^)(NSURLSessionDataTask *task, id _Nullable responseObject))success
      failure:(nullable void (^)(NSURLSessionDataTask * _Nullable task, NSError *error))failure; // PUT - (nullable NSURLSessionDataTask *)PUT:(NSString *)URLString
      parameters:(nullable id)parameters
      success:(nullable void (^)(NSURLSessionDataTask *task, id _Nullable responseObject))success
      failure:(nullable void (^)(NSURLSessionDataTask * _Nullable task, NSError *error))failure; // PATCH - (nullable NSURLSessionDataTask *)PATCH:(NSString *)URLString
      parameters:(nullable id)parameters
      success:(nullable void (^)(NSURLSessionDataTask *task, id _Nullable responseObject))success
      failure:(nullable void (^)(NSURLSessionDataTask * _Nullable task, NSError *error))failure; // DELETE - (nullable NSURLSessionDataTask *)DELETE:(NSString *)URLString
      parameters:(nullable id)parameters
      success:(nullable void (^)(NSURLSessionDataTask *task, id _Nullable responseObject))success
      failure:(nullable void (^)(NSURLSessionDataTask * _Nullable task, NSError *error))failure;
    • AFURLSessionManager 请求

          // Data Tasks
      
              - (NSURLSessionDataTask *)dataTaskWithRequest:(NSURLRequest *)request
      completionHandler:(nullable void (^)(NSURLResponse *response,
      id _Nullable responseObject,
      NSError * _Nullable error))completionHandler; - (NSURLSessionDataTask *)dataTaskWithRequest:(NSURLRequest *)request
      uploadProgress:(nullable void (^)(NSProgress *uploadProgress))uploadProgressBlock
      downloadProgress:(nullable void (^)(NSProgress *downloadProgress))downloadProgressBlock
      completionHandler:(nullable void (^)(NSURLResponse *response,
      id _Nullable responseObject,
      NSError * _Nullable error))completionHandler; // Upload Tasks - (NSURLSessionUploadTask *)uploadTaskWithRequest:(NSURLRequest *)request
      fromFile:(NSURL *)fileURL
      progress:(nullable void (^)(NSProgress *uploadProgress))uploadProgressBlock
      completionHandler:(nullable void (^)(NSURLResponse *response,
      id _Nullable responseObject,
      NSError * _Nullable error))completionHandler; - (NSURLSessionUploadTask *)uploadTaskWithRequest:(NSURLRequest *)request
      fromData:(nullable NSData *)bodyData
      progress:(nullable void (^)(NSProgress *uploadProgress))uploadProgressBlock
      completionHandler:(nullable void (^)(NSURLResponse *response,
      id _Nullable responseObject,
      NSError * _Nullable error))completionHandler; - (NSURLSessionUploadTask *)uploadTaskWithStreamedRequest:(NSURLRequest *)request
      progress:(nullable void (^)(NSProgress *uploadProgress))uploadProgressBlock
      completionHandler:(nullable void (^)(NSURLResponse *response,
      id _Nullable responseObject,
      NSError * _Nullable error))completionHandler; // Download Tasks - (NSURLSessionDownloadTask *)downloadTaskWithRequest:(NSURLRequest *)request
      progress:(nullable void (^)(NSProgress *downloadProgress))downloadProgressBlock
      destination:(nullable NSURL * (^)(NSURL *targetPath,
      NSURLResponse *response))destination
      completionHandler:(nullable void (^)(NSURLResponse *response,
      NSURL * _Nullable filePath,
      NSError * _Nullable error))completionHandler; - (NSURLSessionDownloadTask *)downloadTaskWithResumeData:(NSData *)resumeData
      progress:(nullable void (^)(NSProgress *downloadProgress))downloadProgressBlock
      destination:(nullable NSURL * (^)(NSURL *targetPath,
      NSURLResponse *response))destination
      completionHandler:(nullable void (^)(NSURLResponse *response,
      NSURL * _Nullable filePath,
      NSError * _Nullable error))completionHandler;

4、AFNetworking 网络状态监测

  • Objective-C

    • 网络连接状态:

          AFNetworkReachabilityStatusUnknown          = -1,               网络状态未知
      AFNetworkReachabilityStatusNotReachable = 0, 无网络连接
      AFNetworkReachabilityStatusReachableViaWWAN = 1, 无线网络(蜂窝移动网络)
      AFNetworkReachabilityStatusReachableViaWiFi = 2, WiFi 网络
    • 由于检测网络有一定的延迟,如果启动 App 立即去检测调用 [AFNetworkReachabilityManager sharedManager].networkReachabilityStatus 有可能得到的是 netStatus == AFNetworkReachabilityStatusUnknown; 但是此时明明是有网的,建议在收到监听网络状态回调以后再取 [AFNetworkReachabilityManager sharedManager].networkReachabilityStatus。或者延时调用 [self performSelector:@selector(networkReachability:) withObject:nil afterDelay:0.35f];。

    • 必须开启监听,才能获得网络状态。

      • AFNetworkReachabilityManager 方式

            // 开启监听网络状态
        [[AFNetworkReachabilityManager sharedManager] startMonitoring]; // 关闭网络状态监听
        [[AFNetworkReachabilityManager sharedManager] stopMonitoring]; // 监听网络状态回调
        [[AFNetworkReachabilityManager sharedManager] setReachabilityStatusChangeBlock:^(AFNetworkReachabilityStatus status) { // 开启网络状态监听后,只要网络状态发生改变就会调用该 Block 代码段
        }]; // 判断网络是否连接
        BOOL isReachable = [AFNetworkReachabilityManager sharedManager].isReachable; // 判断 WiFi 是否连接
        BOOL isReachableViaWiFi = [AFNetworkReachabilityManager sharedManager].isReachableViaWiFi; // 判断 无线网络 是否连接
        BOOL isReachableViaWWAN = [AFNetworkReachabilityManager sharedManager].isReachableViaWWAN; // 获取网络连接状态
        AFNetworkReachabilityStatus netStatus = [AFNetworkReachabilityManager sharedManager].networkReachabilityStatus; // 转换网络状态为字符串格式
        NSString *netStatusStr1 = AFStringFromNetworkReachabilityStatus(netStatus); // 获取网络连接状态
        NSString *netStatusStr2 = [[AFNetworkReachabilityManager sharedManager] localizedNetworkReachabilityStatusString];
      • AFHTTPSessionManager/AFURLSessionManager 方式

            AFHTTPSessionManager *manager = [AFHTTPSessionManager manager];
        
            AFURLSessionManager * manager = [[AFURLSessionManager alloc]
        initWithSessionConfiguration:[NSURLSessionConfiguration defaultSessionConfiguration]]; // 开启监听网络状态
        [manager.reachabilityManager startMonitoring]; NSOperationQueue *operationQueue = manager.operationQueue; [manager.reachabilityManager setReachabilityStatusChangeBlock:^(AFNetworkReachabilityStatus status) { // 开启网络状态监听后,只要网络状态发生改变就回调用该 Block 代码段 NSString *netStatus = AFStringFromNetworkReachabilityStatus(status);
        NSLog(@"Reachability: %@", netStatus); switch (status) {
        case AFNetworkReachabilityStatusReachableViaWWAN:
        case AFNetworkReachabilityStatusReachableViaWiFi: // 继续 queue
        [operationQueue setSuspended:NO];
        break; case AFNetworkReachabilityStatusNotReachable:
        default: // 暂停 queue
        [operationQueue setSuspended:YES];
        break;
        }
        }];

5、AFNetworking 安全策略设置

  • Objective-C

    • AFSecurityPolicy 方式

          AFSecurityPolicy *securityPolicy = [AFSecurityPolicy defaultPolicy];
      
          // 设置是否信任无效或过期的 SSL 证书的服务器。默认为否
      securityPolicy.allowInvalidCertificates = YES; // 设置安全验证模式,默认为 AFSSLPinningModeNone
      securityPolicy = [AFSecurityPolicy policyWithPinningMode:AFSSLPinningModePublicKey];
    • AFHTTPSessionManager/AFURLSessionManager 方式

          AFHTTPSessionManager *manager = [AFHTTPSessionManager manager];
      
          AFURLSessionManager * manager = [[AFURLSessionManager alloc]
      initWithSessionConfiguration:[NSURLSessionConfiguration defaultSessionConfiguration]]; // 设置是否信任无效或过期的 SSL 证书的服务器。默认为否
      manager.securityPolicy.allowInvalidCertificates = YES; // 设置安全验证模式,默认为 AFSSLPinningModeNone
      manager.securityPolicy = [AFSecurityPolicy policyWithPinningMode:AFSSLPinningModePublicKey];

6、AFHTTPRequestOperationManager 的使用

  • Objective-C

    • Manager 的创建

          NSURL *baseURL = [NSURL URLWithString:@"http://192.168.88.200"];
      
          AFHTTPRequestOperationManager *manager1 = [AFHTTPRequestOperationManager manager];
      
          AFHTTPRequestOperationManager *manager2 = [[AFHTTPRequestOperationManager alloc] initWithBaseURL:baseURL];
    • 设置数据请求格式

          AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager];
      
          // 二进制,默认
      manager.requestSerializer = [AFHTTPRequestSerializer serializer]; // JSON
      manager.requestSerializer = [AFJSONRequestSerializer serializer]; // Plist
      manager.requestSerializer = [AFPropertyListRequestSerializer serializer];
    • 设置数据响应格式

          AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager];
      
          // 二进制
      manager.responseSerializer = [AFHTTPResponseSerializer serializer]; // JSON,默认
      manager.responseSerializer = [AFJSONResponseSerializer serializer]; // XMLParser,SAX 解析
      manager.responseSerializer = [AFXMLParserResponseSerializer serializer]; // Plist
      manager.responseSerializer = [AFPropertyListResponseSerializer serializer]; // Image
      manager.responseSerializer = [AFImageResponseSerializer serializer]; // Compound
      manager.responseSerializer = [AFCompoundResponseSerializer serializer];
    • GET 请求

      • 数据请求

            NSString *urlStr = @"http://192.168.88.200/demo.json";
        
            AFHTTPRequestOperationManager *manger = [AFHTTPRequestOperationManager manager];
        
            [manger GET:urlStr parameters:nil success:^(AFHTTPRequestOperation *operation, id responseObject) {
        
                NSLog(@"success: %@ --- %@", responseObject, [responseObject class]);
        
            } failure:^(AFHTTPRequestOperation *operation, NSError *error) {
        
                NSLog(@"failure: %@", error);
        }];
      • 文件下载

            NSString *urlStr = @"http://192.168.88.200/download/file/minion_01.mp4";
        
            AFHTTPRequestOperationManager *manger = [AFHTTPRequestOperationManager manager];
        
            // 设置接收数据的类型为二进制格式
        manger.responseSerializer = [AFHTTPResponseSerializer serializer]; [manger GET:urlStr parameters:nil success:^(AFHTTPRequestOperation *operation, id responseObject) { [responseObject writeToFile:[operation.response.suggestedFilename q_appendDocumentPath] atomically:YES]; NSLog(@"success: %@", [responseObject class]); } failure:^(AFHTTPRequestOperation *operation, NSError *error) { NSLog(@"failure: %@", error);
        }];
    • HEAD 请求

          NSString *urlStr = @"http://192.168.88.200/download/file/minion_01.mp4";
      
          AFHTTPRequestOperationManager *manger = [AFHTTPRequestOperationManager manager];
      
          [manger HEAD:urlStr parameters:nil success:^(AFHTTPRequestOperation *operation) {
      
              NSLog(@"success: %@ --- %lld", operation.response.suggestedFilename, operation.response.expectedContentLength);
      
          } failure:^(AFHTTPRequestOperation *operation, NSError *error) {
      
              NSLog(@"failure: %@", error);
      }];
    • POST 请求

      • 数据请求

            NSString *urlStr = @"http://192.168.88.200:8080/MJServer/video";
        NSDictionary *params = @{@"type":@"JSON"}; AFHTTPRequestOperationManager *manger = [AFHTTPRequestOperationManager manager]; [manger POST:urlStr parameters:params success:^(AFHTTPRequestOperation *operation, id responseObject) { NSLog(@"success: %@ --- %@", responseObject, [responseObject class]); } failure:^(AFHTTPRequestOperation *operation, NSError *error) { NSLog(@"failure: %@", error);
        }];
      • 文件上传

            NSString *urlStr = @"http://192.168.88.200/upload/upload.php";
        
            AFHTTPRequestOperationManager *manger = [AFHTTPRequestOperationManager manager];
        
            [manger POST:urlStr parameters:nil constructingBodyWithBlock:^(id<AFMultipartFormData> formData) {
        
                NSData *fileData = [NSData dataWithContentsOfFile:[[NSBundle mainBundle] pathForResource:@"HQ_0005.jpg" ofType:nil]];
        [formData appendPartWithFileData:fileData name:@"userfile" fileName:@"test.jpg" mimeType:@"image/jpg"];
        [formData appendPartWithFormData:[@"qian" dataUsingEncoding:NSUTF8StringEncoding] name:@"username"]; } success:^(AFHTTPRequestOperation *operation, id responseObject) { NSLog(@"success: %@ --- %@", responseObject, [responseObject class]); } failure:^(AFHTTPRequestOperation *operation, NSError *error) { NSLog(@"failure: %@", error);
        }];

7、AFHTTPSessionManager 的使用

  • Objective-C

    • Manager 的创建

          NSURL *baseURL = [NSURL URLWithString:@"http://192.168.88.200"];
      NSURLSessionConfiguration *config = [NSURLSessionConfiguration defaultSessionConfiguration]; AFHTTPSessionManager *manager1 = [AFHTTPSessionManager manager]; AFHTTPSessionManager *manager2 = [[AFHTTPSessionManager alloc] initWithBaseURL:baseURL]; AFHTTPSessionManager *manager3 = [[AFHTTPSessionManager alloc] initWithBaseURL:baseURL sessionConfiguration:config];
    • 设置数据请求格式

          AFHTTPSessionManager *manager = [AFHTTPSessionManager manager];
      
          // 二进制,默认
      manager.requestSerializer = [AFHTTPRequestSerializer serializer]; // JSON
      manager.requestSerializer = [AFJSONRequestSerializer serializer]; // Plist
      manager.requestSerializer = [AFPropertyListRequestSerializer serializer];
    • 设置数据响应格式

          AFHTTPSessionManager *manager = [AFHTTPSessionManager manager];
      
          // 二进制
      manager.responseSerializer = [AFHTTPResponseSerializer serializer]; // JSON,默认
      manager.responseSerializer = [AFJSONResponseSerializer serializer]; // XMLParser,SAX 解析
      manager.responseSerializer = [AFXMLParserResponseSerializer serializer]; // Plist
      manager.responseSerializer = [AFPropertyListResponseSerializer serializer]; // Image
      manager.responseSerializer = [AFImageResponseSerializer serializer]; // Compound
      manager.responseSerializer = [AFCompoundResponseSerializer serializer];
    • Request 设置

          AFHTTPSessionManager *manager = [AFHTTPSessionManager manager];
      
          // 设置参数编码方式,`NSUTF8StringEncoding` by default
      manager.requestSerializer.stringEncoding = NSUTF8StringEncoding; // 设置缓存策略,`NSURLRequestUseProtocolCachePolicy` by default.
      manager.requestSerializer.cachePolicy = NSURLRequestUseProtocolCachePolicy; // 设置网络服务类型,`NSURLNetworkServiceTypeDefault` by default.
      manager.requestSerializer.networkServiceType = NSURLNetworkServiceTypeDefault; // 设置请求超时时间,The default timeout interval is 60 seconds.
      manager.requestSerializer.timeoutInterval = 15; // 是否允许蜂窝网络访问,`YES` by default.
      manager.requestSerializer.allowsCellularAccess = YES; // 设置是否应用默认的 Cookies,`YES` by default.
      manager.requestSerializer.HTTPShouldHandleCookies = YES; // 设置是否使用 Pipelining,`NO` by default.
      manager.requestSerializer.HTTPShouldUsePipelining = NO; // 请求头设置 // 设置请求头
      [manager.requestSerializer setValue:@"iPhone" forHTTPHeaderField:@"User-Agent"]; // 设置用户验证
      [manager.requestSerializer setAuthorizationHeaderFieldWithUsername:@"admin" password:@"adminpasswd"]; // 清除用户验证信息
      [manager.requestSerializer clearAuthorizationHeader];
    • GET 请求

      • 数据请求

            NSString *urlStr = @"http://192.168.88.200/demo.json";
        
            AFHTTPSessionManager *manager = [AFHTTPSessionManager manager];
        
            [manager GET:urlStr parameters:nil progress:nil success:^(NSURLSessionDataTask * _Nonnull task,
        id _Nullable responseObject) { NSLog(@"success: %@ --- %@", responseObject, [responseObject class]); } failure:^(NSURLSessionDataTask * _Nullable task, NSError * _Nonnull error) { NSLog(@"failure: %@", error);
        }];
      • 文件下载

            NSString *urlStr = @"http://192.168.88.200/download/file/minion_01.mp4";
        
            AFHTTPSessionManager *manager = [AFHTTPSessionManager manager];
        
            // 设置接收数据的类型为二进制格式
        manager.responseSerializer = [AFHTTPResponseSerializer serializer]; [manager GET:urlStr parameters:nil progress:^(NSProgress * _Nonnull downloadProgress) { float progress = 1.0 * downloadProgress.completedUnitCount / downloadProgress.totalUnitCount; dispatch_async(dispatch_get_main_queue(), ^{
        [self.progressBtn q_setButtonWithProgress:progress lineWidth:10 lineColor:nil
        backgroundColor:[UIColor yellowColor]];
        }); } success:^(NSURLSessionDataTask * _Nonnull task, id _Nullable responseObject) { [responseObject writeToFile:[task.response.suggestedFilename q_appendDocumentPath] atomically:YES]; NSLog(@"success: %@", [responseObject class]); } failure:^(NSURLSessionDataTask * _Nullable task, NSError * _Nonnull error) { NSLog(@"failure: %@", error);
        }];
    • HEAD 请求

          NSString *urlStr = @"http://192.168.88.200/download/file/minion_01.mp4";
      
          AFHTTPSessionManager *manager = [AFHTTPSessionManager manager];
      
          [manager HEAD:urlStr parameters:nil success:^(NSURLSessionDataTask * _Nonnull task) {
      
              NSLog(@"success: %@ --- %lld", task.response.suggestedFilename, task.response.expectedContentLength);
      
          } failure:^(NSURLSessionDataTask * _Nullable task, NSError * _Nonnull error) {
      
              NSLog(@"failure: %@", error);
      }];
    • POST 请求

      • 数据请求

            NSString *urlStr = @"http://192.168.88.200:8080/MJServer/video";
        NSDictionary *params = @{@"type":@"JSON"}; AFHTTPSessionManager *manager = [AFHTTPSessionManager manager]; [manager POST:urlStr parameters:params
        progress:nil
        success:^(NSURLSessionDataTask * _Nonnull task, id _Nullable responseObject) { NSLog(@"success: %@ --- %@", responseObject, [responseObject class]); } failure:^(NSURLSessionDataTask * _Nullable task, NSError * _Nonnull error) { NSLog(@"failure: %@", error);
        }];
      • 文件上传

            NSString *urlStr = @"http://192.168.88.200/upload/upload.php";
        
            AFHTTPSessionManager *manager = [AFHTTPSessionManager manager];
        
            [manager POST:urlStr parameters:nil constructingBodyWithBlock:^(id<AFMultipartFormData>  _Nonnull formData) {
        
                NSData *fileData = [NSData dataWithContentsOfFile:[[NSBundle mainBundle] pathForResource:@"HQ_0005.jpg" ofType:nil]];
        [formData appendPartWithFileData:fileData name:@"userfile" fileName:@"test.jpg" mimeType:@"image/jpg"];
        [formData appendPartWithFormData:[@"qian" dataUsingEncoding:NSUTF8StringEncoding] name:@"username"]; } progress:^(NSProgress * _Nonnull uploadProgress) { float progress = 1.0 * uploadProgress.completedUnitCount / uploadProgress.totalUnitCount;
        dispatch_async(dispatch_get_main_queue(), ^{
        [self.progressBtn q_setButtonWithProgress:progress lineWidth:10 lineColor:nil
        backgroundColor:[UIColor yellowColor]];
        }); } success:^(NSURLSessionDataTask * _Nonnull task, id _Nullable responseObject) { NSLog(@"success: %@ --- %@", responseObject, [responseObject class]); } failure:^(NSURLSessionDataTask * _Nullable task, NSError * _Nonnull error) { NSLog(@"failure: %@", error);
        }];

8、AFURLSessionManager 的使用

  • Objective-C

    • Manager 的创建

          // 创建 manager
      AFURLSessionManager *manager = [[AFURLSessionManager alloc]
      initWithSessionConfiguration:[NSURLSessionConfiguration defaultSessionConfiguration]]; // 取消挂起的 task
      [[AFURLSessionManager alloc] invalidateSessionCancelingTasks:YES];
    • 设置数据响应格式

          AFURLSessionManager *manager = [[AFURLSessionManager alloc]
      initWithSessionConfiguration:[NSURLSessionConfiguration defaultSessionConfiguration]]; // 二进制
      manager.responseSerializer = [AFHTTPResponseSerializer serializer]; // JSON,默认
      manager.responseSerializer = [AFJSONResponseSerializer serializer]; // XMLParser,SAX 解析
      manager.responseSerializer = [AFXMLParserResponseSerializer serializer]; // Plist
      manager.responseSerializer = [AFPropertyListResponseSerializer serializer]; // Image
      manager.responseSerializer = [AFImageResponseSerializer serializer]; // Compound
      manager.responseSerializer = [AFCompoundResponseSerializer serializer];
    • 获取上传下载进度

          AFURLSessionManager *manager = [[AFURLSessionManager alloc]
      initWithSessionConfiguration:[NSURLSessionConfiguration defaultSessionConfiguration]]; // 获取上传进度
      NSProgress *uploadProgress = [manager uploadProgressForTask:uploadTask]; // 获取下载进度
      NSProgress *downloadProgress = [manager uploadProgressForTask:downloadTask];
    • Data Tasks

      • GET 数据请求

            NSURLRequest *request = [NSURLRequest requestWithURL:[NSURL URLWithString:
        @"http://192.168.88.200:8080/MJServer/video?type=JSON"]]; AFURLSessionManager *manager = [[AFURLSessionManager alloc]
        initWithSessionConfiguration:[NSURLSessionConfiguration defaultSessionConfiguration]]; [[manager dataTaskWithRequest:request completionHandler:^(NSURLResponse * _Nonnull response,
        id _Nullable responseObject,
        NSError * _Nullable error) { if (error == nil && responseObject != nil) {
        NSLog(@"success: %@ --- %@", responseObject, [responseObject class]);
        } else {
        NSLog(@"failure: %@", error);
        }
        }] resume];
      • POST 数据请求

            NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:[NSURL URLWithString:
        @"http://192.168.88.200:8080/MJServer/video"]];
        request.HTTPMethod = @"POST";
        request.HTTPBody = [@"type=JSON" dataUsingEncoding:NSUTF8StringEncoding]; AFURLSessionManager *manager = [[AFURLSessionManager alloc]
        initWithSessionConfiguration:[NSURLSessionConfiguration defaultSessionConfiguration]]; [[manager dataTaskWithRequest:request completionHandler:^(NSURLResponse * _Nonnull response,
        id _Nullable responseObject,
        NSError * _Nullable error) { if (error == nil && responseObject != nil) {
        NSLog(@"success: %@ --- %@", responseObject, [responseObject class]);
        } else {
        NSLog(@"failure: %@", error);
        }
        }] resume];
    • Upload Tasks

      • POST 文件上传

        • 文件数据封装使用到第三方框架 QExtension,具体实现代码见 GitHub 源码 QExtension
            NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:[NSURL URLWithString:
        @"http://192.168.88.200/upload/upload.php"]];
        request.HTTPMethod = @"POST"; NSData *fileData = [NSData dataWithContentsOfFile:[[NSBundle mainBundle] pathForResource:@"HQ_0005.jpg" ofType:nil]];
        NSData *formData = [NSData q_formDataWithRequest:request
        text:@"qian"
        textName:@"username"
        fileData:fileData
        name:@"userfile"
        fileName:@"test.jpg"
        mimeType:@"imge/jpg"]; AFURLSessionManager *manager = [[AFURLSessionManager alloc]
        initWithSessionConfiguration:[NSURLSessionConfiguration defaultSessionConfiguration]]; [[manager uploadTaskWithRequest:request fromData:formData progress:^(NSProgress * _Nonnull uploadProgress) { float progress = 1.0 * uploadProgress.completedUnitCount / uploadProgress.totalUnitCount;
        dispatch_async(dispatch_get_main_queue(), ^{
        [self.progressBtn q_setButtonWithProgress:progress lineWidth:10 lineColor:nil backgroundColor:[UIColor yellowColor]];
        }); } completionHandler:^(NSURLResponse * _Nonnull response, id _Nullable responseObject, NSError * _Nullable error) { if (error == nil && responseObject != nil) {
        NSLog(@"success: %@ --- %@", responseObject, [responseObject class]);
        } else {
        NSLog(@"failure: %@", error);
        }
        }] resume];
      • POST 文件上传,fileData 形式

            NSString *urlStr = @"http://192.168.88.200/upload/upload.php";
        
            NSMutableURLRequest *request = [[AFHTTPRequestSerializer serializer]
        multipartFormRequestWithMethod:@"POST"
        URLString:urlStr
        parameters:nil
        constructingBodyWithBlock:^(id<AFMultipartFormData> _Nonnull formData) { // 指定文件数据形式上传 NSData *fileData = [NSData dataWithContentsOfFile:[[NSBundle mainBundle] pathForResource:@"HQ_0005.jpg" ofType:nil]];
        [formData appendPartWithFileData:fileData name:@"userfile" fileName:@"test.jpg" mimeType:@"imge/jpg"];
        [formData appendPartWithFormData:[@"qian" dataUsingEncoding:NSUTF8StringEncoding] name:@"username"]; } error: NULL]; AFURLSessionManager *manager = [[AFURLSessionManager alloc]
        initWithSessionConfiguration:[NSURLSessionConfiguration defaultSessionConfiguration]]; [[manager uploadTaskWithStreamedRequest:request progress:^(NSProgress * _Nonnull uploadProgress) { float progress = 1.0 * uploadProgress.completedUnitCount / uploadProgress.totalUnitCount;
        dispatch_async(dispatch_get_main_queue(), ^{
        [self.progressBtn q_setButtonWithProgress:progress lineWidth:10 lineColor:nil backgroundColor:[UIColor yellowColor]];
        }); } completionHandler:^(NSURLResponse * _Nonnull response, id _Nullable responseObject, NSError * _Nullable error) { if (error == nil && responseObject != nil) {
        NSLog(@"success: %@ --- %@", responseObject, [responseObject class]);
        } else {
        NSLog(@"failure: %@", error);
        }
        }] resume];
      • POST 文件上传,fileUrl 形式

            NSString *urlStr = @"http://192.168.88.200/upload/upload.php";
        
            NSMutableURLRequest *urlRequest = [[AFHTTPRequestSerializer serializer]
        multipartFormRequestWithMethod:@"POST"
        URLString:urlStr
        parameters:nil
        constructingBodyWithBlock:^(id<AFMultipartFormData> _Nonnull formData) { // 指定文件路径形式上传 NSURL *fileUrl = [NSURL fileURLWithPath:[[NSBundle mainBundle] pathForResource:@"HQ_0005" ofType:@"jpg"]];
        [formData appendPartWithFileURL:fileUrl name:@"userfile" fileName:@"test.png" mimeType:@"image/jpg" error:nil];
        [formData appendPartWithFormData:[@"qian" dataUsingEncoding:NSUTF8StringEncoding] name:@"username"]; } error: NULL]; AFURLSessionManager *manager = [[AFURLSessionManager alloc]
        initWithSessionConfiguration:[NSURLSessionConfiguration defaultSessionConfiguration]]; [[manager uploadTaskWithStreamedRequest:urlRequest progress:^(NSProgress * _Nonnull uploadProgress) { float progress = 1.0 * uploadProgress.completedUnitCount / uploadProgress.totalUnitCount;
        dispatch_async(dispatch_get_main_queue(), ^{
        [self.progressBtn q_setButtonWithProgress:progress lineWidth:10 lineColor:nil backgroundColor:[UIColor yellowColor]];
        }); } completionHandler:^(NSURLResponse * _Nonnull response, id _Nullable responseObject, NSError * _Nullable error) { if (error == nil && responseObject != nil) {
        NSLog(@"success: %@ --- %@", responseObject, [responseObject class]);
        } else {
        NSLog(@"failure: %@", error);
        }
        }] resume];
      • PUT 文件上传

            NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:[NSURL URLWithString:
        @"http://192.168.88.200/uploads/123.jpg"]];
        request.HTTPMethod = @"PUT"; [request setValue:[@"admin:adminpasswd" q_basic64AuthEncode] forHTTPHeaderField:@"Authorization"]; NSURL *fileURL = [[NSBundle mainBundle] URLForResource:@"HQ_0005.jpg" withExtension:nil]; AFURLSessionManager *manager = [[AFURLSessionManager alloc]
        initWithSessionConfiguration:[NSURLSessionConfiguration defaultSessionConfiguration]];
        manager.responseSerializer = [AFHTTPResponseSerializer serializer]; [[manager uploadTaskWithRequest:request fromFile:fileURL progress:^(NSProgress * _Nonnull uploadProgress) { float progress = 1.0 * uploadProgress.completedUnitCount / uploadProgress.totalUnitCount;
        dispatch_async(dispatch_get_main_queue(), ^{
        [self.progressBtn q_setButtonWithProgress:progress lineWidth:10 lineColor:nil backgroundColor:[UIColor yellowColor]];
        }); } completionHandler:^(NSURLResponse * _Nonnull response, id _Nullable responseObject, NSError * _Nullable error) { if (error == nil && responseObject != nil) {
        NSLog(@"success: %@ --- %@", responseObject, [responseObject class]);
        } else {
        NSLog(@"failure: %@", error);
        }
        }] resume];
    • Download Tasks

      • 普通下载

            NSURLRequest *request = [NSURLRequest requestWithURL:[NSURL URLWithString:@"http://192.168.88.200/download/file/minion_01.mp4"]];
        
            AFURLSessionManager *manager = [[AFURLSessionManager alloc]
        initWithSessionConfiguration:[NSURLSessionConfiguration defaultSessionConfiguration]]; [[manager downloadTaskWithRequest:request progress:^(NSProgress * _Nonnull downloadProgress) { float progress = 1.0 * downloadProgress.completedUnitCount / downloadProgress.totalUnitCount;
        dispatch_async(dispatch_get_main_queue(), ^{
        [self.progressBtn q_setButtonWithProgress:progress lineWidth:10 lineColor:nil backgroundColor:[UIColor yellowColor]];
        }); } destination:^NSURL * _Nonnull(NSURL * _Nonnull targetPath, NSURLResponse * _Nonnull response) { return [NSURL fileURLWithPath:[response.suggestedFilename q_appendDocumentPath]]; } completionHandler:^(NSURLResponse * _Nonnull response, NSURL * _Nullable filePath, NSError * _Nullable error) { if (error == nil) {
        NSLog(@"success: %@ --- %@", response, [response class]);
        } else {
        NSLog(@"failure: %@", error);
        }
        }] resume];
      • 断点下载

            @property (nonatomic, strong) AFURLSessionManager *manager;
        @property (nonatomic, retain) NSURLSessionDownloadTask *downloadTask; @property (nonatomic, strong) NSData *resumeData;
        @property (nonatomic, strong) NSString *resumeTmpPath; @property (nonatomic, assign) BOOL isDownloading;
        @property (nonatomic, assign) BOOL isPause; - (AFURLSessionManager *)manager {
        if (_manager == nil) {
        _manager = [[AFURLSessionManager alloc]
        initWithSessionConfiguration:[NSURLSessionConfiguration defaultSessionConfiguration]];
        _manager.responseSerializer = [AFHTTPResponseSerializer serializer];
        }
        return _manager;
        } - (NSString *)resumeTmpPath {
        if (_resumeTmpPath == nil) {
        _resumeTmpPath = [@"resumeTmpData.tmp" q_appendCachePath];
        }
        return _resumeTmpPath;
        } // 开始下载 - (void)start { if (self.isDownloading) {
        NSLog(@"已经开始下载");
        return;
        } if (self.isPause) { NSLog(@"继续下载"); [self.downloadTask resume]; self.isPause = NO;
        self.isDownloading = YES;
        return;
        } if (![[NSFileManager defaultManager] fileExistsAtPath:self.resumeTmpPath]) { NSURLRequest *request = [NSURLRequest requestWithURL:[NSURL URLWithString:
        @"http://120.25.226.186:32812/resources/videos/minion_01.mp4"]]; self.downloadTask = [self.manager downloadTaskWithRequest:request progress:^(NSProgress * _Nonnull downloadProgress) { [self downloadProgress:downloadProgress]; } destination:^NSURL * _Nonnull(NSURL * _Nonnull targetPath, NSURLResponse * _Nonnull response) { return [NSURL fileURLWithPath:[response.suggestedFilename q_appendDocumentPath]]; } completionHandler:^(NSURLResponse * _Nonnull response, NSURL * _Nullable filePath, NSError * _Nullable error) { [self downloadCompletion:filePath error:error];
        }]; [self.downloadTask resume]; self.isPause = NO;
        self.isDownloading = YES; } else {
        [self goon];
        }
        } // 继续下载 - (void)goon { if (self.isDownloading) {
        NSLog(@"已经开始下载");
        return;
        } if (self.isPause) { [self.downloadTask resume];
        NSLog(@"继续下载"); } else { self.resumeData = [NSData dataWithContentsOfFile:self.resumeTmpPath]; self.downloadTask = [self.manager downloadTaskWithResumeData:self.resumeData
        progress:^(NSProgress * _Nonnull downloadProgress) { [self downloadProgress:downloadProgress]; } destination:^NSURL * _Nonnull(NSURL * _Nonnull targetPath, NSURLResponse * _Nonnull response) { return [NSURL fileURLWithPath:[response.suggestedFilename q_appendDocumentPath]]; } completionHandler:^(NSURLResponse * _Nonnull response, NSURL * _Nullable filePath, NSError * _Nullable error) { [self downloadCompletion:filePath error:error];
        }]; [self.downloadTask resume]; NSLog(@"继续下载");
        } self.isPause = NO;
        self.isDownloading = YES;
        } // 暂停下载 - (void)pause { if (!self.isDownloading) {
        NSLog(@"已经停止下载");
        return;
        } [self.downloadTask suspend]; NSLog(@"暂停下载"); self.isPause = YES;
        self.isDownloading = NO;
        } // 停止下载 - (void)stop { if (!self.isDownloading) {
        NSLog(@"已经停止下载");
        return;
        } [self.downloadTask cancelByProducingResumeData:^(NSData * _Nullable resumeData) { if (resumeData) { self.resumeData = resumeData; [self.resumeData writeToFile:self.resumeTmpPath atomically:YES];
        } self.downloadTask = nil; NSLog(@"停止下载");
        }]; self.isDownloading = NO;
        } - (void)downloadProgress:(NSProgress *)downloadProgress { float progress = 1.0 * downloadProgress.completedUnitCount / downloadProgress.totalUnitCount;
        dispatch_async(dispatch_get_main_queue(), ^{
        [self.progressBtn q_setButtonWithProgress:progress lineWidth:10 lineColor:nil
        backgroundColor:[UIColor yellowColor]];
        });
        } - (void)downloadCompletion:(NSURL *)filePath error:(NSError *)error { self.isDownloading = NO; if (error == nil) { NSLog(@"success: %@", filePath.path); [[NSFileManager defaultManager] removeItemAtPath:self.resumeTmpPath error:nil]; } else { NSLog(@"%@", error); if (error) {
        NSLog(@"failure: %@", error.userInfo[NSLocalizedDescriptionKey]); self.resumeData = error.userInfo[NSURLSessionDownloadTaskResumeData];
        } if ([error.localizedFailureReason isEqualToString:@"No such file or directory"]) { [[NSFileManager defaultManager] removeItemAtPath:self.resumeTmpPath error:nil]; [self start];
        }
        }
        }

9、AFNetworking 单例封装

  • Objective-C

    • NetworkTools.h

          #import <AFNetworking/AFNetworking.h>
      
          @interface NetworkTools : AFHTTPSessionManager
      
          + (instancetype)sharedNetworkTools;
      
          @end
    • NetworkTools.m

          @implementation NetworkTools
      
          + (instancetype)sharedNetworkTools {
      static NetworkTools *tools; static dispatch_once_t onceToken;
      dispatch_once(&onceToken, ^{ // baseURL 的目的,就是让后续的网络访问直接使用 相对路径即可,baseURL 的路径一定要有 / 结尾
      NSURL *baseURL = [NSURL URLWithString:@"http://c.m.163.com/"]; NSURLSessionConfiguration *config = [NSURLSessionConfiguration defaultSessionConfiguration]; tools = [[self alloc] initWithBaseURL:baseURL sessionConfiguration:config]; // 修改 解析数据格式 能够接受的内容类型 - 官方推荐的做法,民间做法:直接修改 AFN 的源代码
      tools.responseSerializer.acceptableContentTypes = [NSSet setWithObjects:@"application/json",
      @"text/json",
      @"text/javascript",
      @"text/html",
      nil];
      });
      return tools;
      } @end

iOSAFNetworking 网络请求的更多相关文章

  1. Angular2入门系列教程7-HTTP(一)-使用Angular2自带的http进行网络请求

    上一篇:Angular2入门系列教程6-路由(二)-使用多层级路由并在在路由中传递复杂参数 感觉这篇不是很好写,因为涉及到网络请求,如果采用真实的网络请求,这个例子大家拿到手估计还要自己写一个web ...

  2. Android之三种网络请求解析数据(最佳案例)

    AsyncTask解析数据 AsyncTask主要用来更新UI线程,比较耗时的操作可以在AsyncTask中使用. AsyncTask是个抽象类,使用时需要继承这个类,然后调用execute()方法. ...

  3. IOS开发之—— 在AFN基础上进行的网络请求的封装

    网络请求的思路:如果请求成功的话AFN的responseObject就是解析好的. 1发送网络请求:get/post/或者别的 带上URL,需要传的参数 2判断后台网络状态码有没有请求成功: 3 请求 ...

  4. Android,适合Restful网络请求封装

    借助volley.Gson类库. 优点 网络请求集中处理,返回值直接为预期的对象,不需要手动反序列,提高效率,使用时建立好model类即可. 使用效果 DataProess.Request(true, ...

  5. Android okHttp网络请求之Json解析

    前言: 前面两篇文章介绍了基于okHttp的post.get请求,以及文件的上传下载,今天主要介绍一下如何和Json解析一起使用?如何才能提高开发效率? okHttp相关文章地址: Android o ...

  6. 阶段一:通过网络请求,获得并解析JSON数据(天气应用)

    “阶段一”是指我第一次系统地学习Android开发.这主要是对我的学习过程作个记录. 在上一篇阶段一:解析JSON中提到,最近在写一个很简单的天气预报应用.即使功能很简单,但我还是想把它做成一个相对完 ...

  7. NSURLSession网络请求

    个人感觉在网上很难找到很简单的网络请求.或许是我才疏学浅 ,  所有就有了下面这一段 , 虽然都是代码 , 但是全有注释 . //1/获取文件访问路径 NSString *path=@"ht ...

  8. 【Swift】Alamofile网络请求数据更新TableView的坑

    写这篇BLOG前,有些话不得不提一下,就仅当发发恼骚吧... 今天下午为了一个Alamofire取得数据而更新TableView的问题,查了一下午的百度(360也是见鬼的一样),竟然没有一个简单明了的 ...

  9. 【WP8.1】HttpClient网络请求、进度以及终止

    工作这么长时间,起初还是喜欢用面向程序过程的思路去写代码. 慢慢的才会用面向对象的思路分析.解决问题.也算是一点点进步吧. 最近在做一个下载音乐的功能.用到了HttpClient类. 于是就简单的写了 ...

随机推荐

  1. android 控件各种颜色的半透明效果配置

    格式: android:background="#XXxxxxxx"(颜色可以写在color中) 说明:半透明颜色值不同于平时使用的颜色,半透明颜色值共8位,前2位是透明度,后6位 ...

  2. FreeSWITCH在会议室中持续播放音频文件

    最近遇到一个客户需求,希望在会议室建立起来后,自动播放一段指定的声音. 已知会议室命令,假设建立起一个会议室号码3000,很容易实现以下功能: 一.播放一个声音文件一次 conference 3000 ...

  3. [转]使用spring中的@Transactional注解时,可能需要注意的地方

    前情提要 在编写业务层方法时,会遇到很多需要事务提交的操作,spring框架为我们提供很方便的做法,就是在需要事务提交的方法上添加@Transactional注解,比起我们自己开启事务.提交以及控制回 ...

  4. 转 Java笔记:Java内存模型

    Java笔记:Java内存模型 2014.04.09 | Comments 1. 基本概念 <深入理解Java内存模型>详细讲解了java的内存模型,这里对其中的一些基本概念做个简单的笔记 ...

  5. python标准库介绍——32 Queue 模块详解

    Queue 模块 ``Queue`` 模块提供了一个线程安全的队列 (queue) 实现, 如 [Example 3-2 #eg-3-2] 所示. 你可以通过它在多个线程里安全访问同个对象. ==== ...

  6. U811.1接口EAI系列之六--物料上传--VB语言

    1. 业务系统同步U811.1存货档案通用方法. 2.具体代码处理如下: 作者:王春天 2013-11-06 地址:http://www.cnblogs.com/spring_wang/p/34098 ...

  7. windows系统如何通过Xshell 客户端连接 linux系统(主要介绍ubuntu系统)

    一. 1.查看ubuntu系统的ip地址:ifconfig 在window系统运行窗口下:ping ubuntu系统的IP地址:例如:ping 192.168.163.129 出现下述命令就是ping ...

  8. Java项目多数据源配置 (转)

    由于种种原因,有的时候可能要连接别人的数据库,或者不同的数据库没法自动转换,重构起来数据量又太大了,我们不得不在一个项目中连接多个数据源.从网上找了各种资料,只有这位大神给出的解决方案一下子就成功了. ...

  9. bat 批处理脚本定时执行命令

    有个需求,需要每天定时执行下某个任务,一天一次.由于工作机器环境问题,没有办法设置windows 定时任务.查找资料并完成如下脚本. 功能:每天定时执行一次任务. 复制如下脚本,到一个test.vbs ...

  10. xpath的常见操作

    1. 获取某一个节点下所有的文本数据: data = response.xpath('//div[@id="zoomcon"]') content = ''.join(data.x ...