okHttp封装使用
package com.zhy.utils.http.okhttp; import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.os.Handler;
import android.os.Looper;
import android.widget.ImageView; import com.squareup.okhttp.Call;
import com.squareup.okhttp.Callback;
import com.squareup.okhttp.FormEncodingBuilder;
import com.squareup.okhttp.Headers;
import com.squareup.okhttp.MediaType;
import com.squareup.okhttp.MultipartBuilder;
import com.squareup.okhttp.OkHttpClient;
import com.squareup.okhttp.Request;
import com.squareup.okhttp.RequestBody;
import com.squareup.okhttp.Response; import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.net.FileNameMap;
import java.net.URLConnection;
import java.util.Map;
import java.util.Set; /**
* Created by zhy on 15/8/17.
*/
public class OkHttpClientManager
{
private static OkHttpClientManager mInstance;
private OkHttpClient mOkHttpClient;
private Handler mDelivery; private static final String TAG = "OkHttpClientManager"; private OkHttpClientManager()
{
mOkHttpClient = new OkHttpClient();
mDelivery = new Handler(Looper.getMainLooper());
} public static OkHttpClientManager getInstance()
{
if (mInstance == null)
{
synchronized (OkHttpClientManager.class)
{
if (mInstance == null)
{
mInstance = new OkHttpClientManager();
}
}
}
return mInstance;
} /**
* 同步的Get请求
*
* @param url
* @return Response
*/
private Response _getAsyn(String url) throws IOException
{
final Request request = new Request.Builder()
.url(url)
.build();
Call call = mOkHttpClient.newCall(request);
Response execute = call.execute();
return execute;
} /**
* 同步的Get请求
*
* @param url
* @return 字符串
*/
private String _getAsString(String url) throws IOException
{
Response execute = _getAsyn(url);
return execute.body().string();
} /**
* 异步的get请求
*
* @param url
* @param callback
*/
private void _getAsyn(String url, final StringCallback callback)
{
final Request request = new Request.Builder()
.url(url)
.build();
deliveryResult(callback, request);
} /**
* 同步的Post请求
*
* @param url
* @param params post的参数
* @return
*/
private Response _post(String url, Param... params) throws IOException
{
Request request = buildPostRequest(url, params);
Response response = mOkHttpClient.newCall(request).execute();
return response;
} /**
* 同步的Post请求
*
* @param url
* @param params post的参数
* @return 字符串
*/
private String _postAsString(String url, Param... params) throws IOException
{
Response response = _post(url, params);
return response.body().string();
} /**
* 异步的post请求
*
* @param url
* @param callback
* @param params
*/
private void _postAsyn(String url, final StringCallback callback, Param... params)
{
Request request = buildPostRequest(url, params);
deliveryResult(callback, request);
} /**
* 异步的post请求
*
* @param url
* @param callback
* @param params
*/
private void _postAsyn(String url, final StringCallback callback, Map<String, String> params)
{
Param[] paramsArr = map2Params(params);
Request request = buildPostRequest(url, paramsArr);
deliveryResult(callback, request);
} /**
* 同步基于post的文件上传
*
* @param params
* @return
*/
private Response _post(String url, File[] files, String[] fileKeys, Param... params) throws IOException
{
Request request = buildMultipartFormRequest(url, files, fileKeys, params);
return mOkHttpClient.newCall(request).execute();
} private Response _post(String url, File file, String fileKey) throws IOException
{
Request request = buildMultipartFormRequest(url, new File[]{file}, new String[]{fileKey}, null);
return mOkHttpClient.newCall(request).execute();
} private Response _post(String url, File file, String fileKey, Param... params) throws IOException
{
Request request = buildMultipartFormRequest(url, new File[]{file}, new String[]{fileKey}, params);
return mOkHttpClient.newCall(request).execute();
} /**
* 异步基于post的文件上传
*
* @param url
* @param callback
* @param files
* @param fileKeys
* @throws IOException
*/
private void _postAsyn(String url, StringCallback callback, File[] files, String[] fileKeys, Param... params) throws IOException
{
Request request = buildMultipartFormRequest(url, files, fileKeys, params);
deliveryResult(callback, request);
} /**
* 异步基于post的文件上传，单文件不带参数上传
*
* @param url
* @param callback
* @param file
* @param fileKey
* @throws IOException
*/
private void _postAsyn(String url, StringCallback callback, File file, String fileKey) throws IOException
{
Request request = buildMultipartFormRequest(url, new File[]{file}, new String[]{fileKey}, null);
deliveryResult(callback, request);
} /**
* 异步基于post的文件上传，单文件且携带其他form参数上传
*
* @param url
* @param callback
* @param file
* @param fileKey
* @param params
* @throws IOException
*/
private void _postAsyn(String url, StringCallback callback, File file, String fileKey, Param... params) throws IOException
{
Request request = buildMultipartFormRequest(url, new File[]{file}, new String[]{fileKey}, params);
deliveryResult(callback, request);
} /**
* 异步下载文件
*
* @param url
* @param destFileDir 本地文件存储的文件夹
* @param callback
*/
private void _downloadAsyn(final String url, final String destFileDir, final StringCallback callback)
{
final Request request = new Request.Builder()
.url(url)
.build();
final Call call = mOkHttpClient.newCall(request);
call.enqueue(new Callback()
{
@Override
public void onFailure(final Request request, final IOException e)
{
sendFailedStringCallback(request, e, callback);
} @Override
public void onResponse(Response response)
{
InputStream is = null;
byte[] buf = new byte[];
int len = ;
FileOutputStream fos = null;
try
{
is = response.body().byteStream();
File file = new File(destFileDir, getFileName(url));
fos = new FileOutputStream(file);
while ((len = is.read(buf)) != -)
{
fos.write(buf, , len);
}
fos.flush();
//如果下载文件成功，第一个参数为文件的绝对路径
sendSuccessStringCallback(file.getAbsolutePath(), callback);
} catch (IOException e)
{
sendFailedStringCallback(response.request(), e, callback);
} finally
{
try
{
if (is != null) is.close();
} catch (IOException e)
{
}
try
{
if (fos != null) fos.close();
} catch (IOException e)
{
}
} }
});
} private String getFileName(String path)
{
int separatorIndex = path.lastIndexOf("/");
return (separatorIndex < ) ? path : path.substring(separatorIndex + , path.length());
} /**
* 加载图片
*
* @param view
* @param url
* @throws IOException
*/
private void _displayImage(final ImageView view, final String url, final int errorResId)
{
final Request request = new Request.Builder()
.url(url)
.build();
Call call = mOkHttpClient.newCall(request);
call.enqueue(new Callback()
{
@Override
public void onFailure(Request request, IOException e)
{
setErrorResId(view, errorResId);
} @Override
public void onResponse(Response response)
{
InputStream is = null;
try
{
is = response.body().byteStream();
ImageUtils.ImageSize actualImageSize = ImageUtils.getImageSize(is);
ImageUtils.ImageSize imageViewSize = ImageUtils.getImageViewSize(view);
int inSampleSize = ImageUtils.calculateInSampleSize(actualImageSize, imageViewSize);
try
{
is.reset();
} catch (IOException e)
{
response = _getAsyn(url);
is = response.body().byteStream();
} BitmapFactory.Options ops = new BitmapFactory.Options();
ops.inJustDecodeBounds = false;
ops.inSampleSize = inSampleSize;
final Bitmap bm = BitmapFactory.decodeStream(is, null, ops);
mDelivery.post(new Runnable()
{
@Override
public void run()
{
view.setImageBitmap(bm);
}
});
} catch (Exception e)
{
setErrorResId(view, errorResId); } finally
{
if (is != null) try
{
is.close();
} catch (IOException e)
{
e.printStackTrace();
}
}
}
}); } private void setErrorResId(final ImageView view, final int errorResId)
{
mDelivery.post(new Runnable()
{
@Override
public void run()
{
view.setImageResource(errorResId);
}
});
} //*************对外公布的方法************ public static Response getAsyn(String url) throws IOException
{
return getInstance()._getAsyn(url);
} public static String getAsString(String url) throws IOException
{
return getInstance()._getAsString(url);
} public static void getAsyn(String url, StringCallback callback)
{
getInstance()._getAsyn(url, callback);
} public static Response post(String url, Param... params) throws IOException
{
return getInstance()._post(url, params);
} public static String postAsString(String url, Param... params) throws IOException
{
return getInstance()._postAsString(url, params);
} public static void postAsyn(String url, final StringCallback callback, Param... params)
{
getInstance()._postAsyn(url, callback, params);
} public static void postAsyn(String url, final StringCallback callback, Map<String, String> params)
{
getInstance()._postAsyn(url, callback, params);
} public static Response post(String url, File[] files, String[] fileKeys, Param... params) throws IOException
{
return getInstance()._post(url, files, fileKeys, params);
} public static Response post(String url, File file, String fileKey) throws IOException
{
return getInstance()._post(url, file, fileKey);
} public static Response post(String url, File file, String fileKey, Param... params) throws IOException
{
return getInstance()._post(url, file, fileKey, params);
} public static void postAsyn(String url, StringCallback callback, File[] files, String[] fileKeys, Param... params) throws IOException
{
getInstance()._postAsyn(url, callback, files, fileKeys, params);
} public static void postAsyn(String url, StringCallback callback, File file, String fileKey) throws IOException
{
getInstance()._postAsyn(url, callback, file, fileKey);
} public static void postAsyn(String url, StringCallback callback, File file, String fileKey, Param... params) throws IOException
{
getInstance()._postAsyn(url, callback, file, fileKey, params);
} public static void displayImage(final ImageView view, String url, int errorResId) throws IOException
{
getInstance()._displayImage(view, url, errorResId);
} public static void displayImage(final ImageView view, String url)
{
getInstance()._displayImage(view, url, -);
} public static void downloadAsyn(String url, String destDir, StringCallback callback)
{
getInstance()._downloadAsyn(url, destDir, callback);
} //**************************** private Request buildMultipartFormRequest(String url, File[] files,
String[] fileKeys, Param[] params)
{
params = validateParam(params); MultipartBuilder builder = new MultipartBuilder()
.type(MultipartBuilder.FORM); for (Param param : params)
{
builder.addPart(Headers.of("Content-Disposition", "form-data; name=\"" + param.key + "\""),
RequestBody.create(null, param.value));
}
if (files != null)
{
RequestBody fileBody = null;
for (int i = ; i < files.length; i++)
{
File file = files[i];
String fileName = file.getName();
fileBody = RequestBody.create(MediaType.parse(guessMimeType(fileName)), file);
//TODO 根据文件名设置contentType
builder.addPart(Headers.of("Content-Disposition",
"form-data; name=\"" + fileKeys[i] + "\"; filename=\"" + fileName + "\""),
fileBody);
}
} RequestBody requestBody = builder.build();
return new Request.Builder()
.url(url)
.post(requestBody)
.build();
} private String guessMimeType(String path)
{
FileNameMap fileNameMap = URLConnection.getFileNameMap();
String contentTypeFor = fileNameMap.getContentTypeFor(path);
if (contentTypeFor == null)
{
contentTypeFor = "application/octet-stream";
}
return contentTypeFor;
} private Param[] validateParam(Param[] params)
{
if (params == null)
return new Param[];
else return params;
} private Param[] map2Params(Map<String, String> params)
{
if (params == null) return new Param[];
int size = params.size();
Param[] res = new Param[size];
Set<Map.Entry<String, String>> entries = params.entrySet();
int i = ;
for (Map.Entry<String, String> entry : entries)
{
res[i++] = new Param(entry.getKey(), entry.getValue());
}
return res;
} private void deliveryResult(final StringCallback callback, Request request)
{
mOkHttpClient.newCall(request).enqueue(new Callback()
{
@Override
public void onFailure(final Request request, final IOException e)
{
sendFailedStringCallback(request, e, callback);
} @Override
public void onResponse(final Response response)
{
try
{
final String string = response.body().string();
sendSuccessStringCallback(string, callback);
} catch (IOException e)
{
sendFailedStringCallback(response.request(), e, callback);
} }
});
} private void sendFailedStringCallback(final Request request, final IOException e, final StringCallback callback)
{
mDelivery.post(new Runnable()
{
@Override
public void run()
{
if (callback != null)
callback.onFailure(request, e);
}
});
} private void sendSuccessStringCallback(final String string, final StringCallback callback)
{
mDelivery.post(new Runnable()
{
@Override
public void run()
{
if (callback != null)
callback.onResponse(string);
}
});
} private Request buildPostRequest(String url, Param[] params)
{
if (params == null)
{
params = new Param[];
}
FormEncodingBuilder builder = new FormEncodingBuilder();
for (Param param : params)
{
builder.add(param.key, param.value);
}
RequestBody requestBody = builder.build();
return new Request.Builder()
.url(url)
.post(requestBody)
.build();
} public interface StringCallback
{
void onFailure(Request request, IOException e); void onResponse(String response);
} public static class Param
{
public Param()
{
} public Param(String key, String value)
{
this.key = key;
this.value = value;
} String key;
String value;
} }
Http Get
OkHttpClientManager.getAsyn("https://github.com/hongyangAndroid", new OkHttpClientManager.StringCallback()
{
@Override
public void onFailure(Request request, IOException e)
{
e.printStackTrace();
}
@Override
public void onResponse(String bytes)
{
mTv.setText(bytes);//注意这里是UI线程回调，可以直接操作控件
}
});
文件上传且携带参数
OkHttpClientManager.postAsyn("http://192.168.1.103:8080/okHttpServer/fileUpload",//
new OkHttpClientManager.StringCallback()
{
@Override
public void onFailure(Request request, IOException e)
{
e.printStackTrace();
}
@Override
public void onResponse(String result)
{
}
},//
file,//
"mFile",//
new OkHttpClientManager.Param[]{
new OkHttpClientManager.Param("username", "zhy"),
new OkHttpClientManager.Param("password", "")}
);
键值对没什么说的，参数3为file，参数4为file对应的name，这个name不是文件的名字；
对应于http中的
<input type="file" name="mFile" >
对应的是name后面的值，即mFile.
文件下载
对于文件下载，提供url，目标dir，callback即可。
OkHttpClientManager.downloadAsyn(
"http://192.168.1.103:8080/okHttpServer/files/messenger_01.png",
Environment.getExternalStorageDirectory().getAbsolutePath(),
new OkHttpClientManager.StringCallback()
{
@Override
public void onFailure(Request request, IOException e)
{ } @Override
public void onResponse(String response)
{
//文件下载成功，这里回调的reponse为文件的absolutePath
}
});
展示图片
展示图片，我们希望提供一个url和一个imageview，如果下载成功，直接帮我们设置上即可。
OkHttpClientManager.displayImage(mImageView, "http://images.csdn.net/20150817/1.jpg");
内部会自动根据imageview的大小自动对图片进行合适的压缩。虽然，这里可能不适合一次性加载大量图片的场景，但是对于app中偶尔有几个图片的加载，还是可用的。
Android OkHttp完全解析 是时候来了解OkHttp了
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