coding++ ：HttpClientUtils 封装
1、关键 JAR
<!--
《《===================》》
httpClient
《《===================》》
-->
<dependency>
<groupId>org.apache.httpcomponents</groupId>
<artifactId>httpclient</artifactId>
<version>4.5.2</version>
</dependency>
<!--
《《===================》》
IO
《《===================》》
-->
<dependency>
<groupId>commons-io</groupId>
<artifactId>commons-io</artifactId>
<version>2.4</version>
</dependency>
2、封装工具类（HttpClientUtils）
//
// Source code recreated from a .class file by IntelliJ IDEA
// (powered by Fernflower decompiler)
// package com.tree.ztree_demo.httpclient; import java.io.IOException;
import java.io.InputStream;
import java.net.URI;
import java.net.URISyntaxException;
import java.nio.charset.Charset;
import java.security.GeneralSecurityException;
import java.security.KeyStore;
import java.security.cert.CertificateException;
import java.security.cert.X509Certificate;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.Map.Entry;
import javax.net.ssl.SSLContext;
import javax.net.ssl.SSLException;
import javax.net.ssl.SSLSession;
import javax.net.ssl.SSLSocket;
import org.apache.commons.io.IOUtils;
import org.apache.http.HttpEntity;
import org.apache.http.NameValuePair;
import org.apache.http.client.config.RequestConfig;
import org.apache.http.client.config.RequestConfig.Builder;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.CloseableHttpResponse;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.client.utils.URIBuilder;
import org.apache.http.conn.ssl.SSLConnectionSocketFactory;
import org.apache.http.conn.ssl.SSLContextBuilder;
import org.apache.http.conn.ssl.TrustStrategy;
import org.apache.http.conn.ssl.X509HostnameVerifier;
import org.apache.http.entity.StringEntity;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.impl.conn.PoolingHttpClientConnectionManager;
import org.apache.http.message.BasicNameValuePair;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.util.StringUtils;
/**
* @Description：HttpClientUtils 封装
* @author： MLQ
* @param：
* @return：
* @exception：
* @date: 2019/5/17 15:57
*/
public class HttpClientUtils {
private static Logger LOG = LoggerFactory.getLogger(HttpClientUtils.class);
private static PoolingHttpClientConnectionManager connMgr = new PoolingHttpClientConnectionManager();
private static RequestConfig requestConfig;
private static final int MAX_TOTAL = 100;
private static final int MAX_TIMEOUT = 7000;
private static final int CONNECT_TIMEOUT = 10000;
private static final int SOCKET_TIMEOUT = 40000;
private static final String CHARSET = "UTF-8"; public HttpClientUtils() {
} public static String doGet(String url) throws Exception {
return doGet(url, new HashMap());
} public static String doGet(String url, Map<String, Object> params) throws Exception {
String result = null;
if (StringUtils.isEmpty(url)) {
LOG.info("warn:doGet url is null or '' ");
return result;
} else {
List<NameValuePair> pairList = new ArrayList(params.size());
Iterator var4 = params.entrySet().iterator(); while(var4.hasNext()) {
Entry<String, Object> entry = (Entry)var4.next();
NameValuePair pair = new BasicNameValuePair((String)entry.getKey(), entry.getValue().toString());
pairList.add(pair);
} CloseableHttpResponse response = null;
InputStream instream = null;
CloseableHttpClient httpclient = HttpClients.createDefault(); try {
URIBuilder URIBuilder = new URIBuilder(url);
URIBuilder.addParameters(pairList);
URI uri = URIBuilder.build();
HttpGet httpGet = new HttpGet(uri);
response = httpclient.execute(httpGet);
int statusCode = response.getStatusLine().getStatusCode();
LOG.info("doGet statusCode:{}", statusCode);
HttpEntity entity = response.getEntity();
if (entity != null) {
instream = entity.getContent();
result = IOUtils.toString(instream, "UTF-8");
}
} catch (IOException var16) {
LOG.error("doGet IO ERROR :{}", var16.getMessage());
} catch (URISyntaxException var17) {
LOG.error("doGet URISyntaxException :{}", var17.getMessage());
} finally {
if (null != instream) {
instream.close();
} if (null != response) {
response.close();
} if (null != httpclient) {
httpclient.close();
} LOG.info("close instream response httpClient connection succ");
} return result;
}
} public static String doGet(String url, Map<String, Object> params, String charset) throws Exception {
String result = null;
if (StringUtils.isEmpty(url)) {
LOG.info("warn:doGet url is null or '' ");
return result;
} else {
List<NameValuePair> pairList = new ArrayList(params.size());
Iterator var5 = params.entrySet().iterator(); while(var5.hasNext()) {
Entry<String, Object> entry = (Entry)var5.next();
NameValuePair pair = new BasicNameValuePair((String)entry.getKey(), entry.getValue().toString());
pairList.add(pair);
} CloseableHttpResponse response = null;
InputStream instream = null;
CloseableHttpClient httpclient = HttpClients.createDefault(); try {
URIBuilder URIBuilder = new URIBuilder(url);
URIBuilder.addParameters(pairList);
URI uri = URIBuilder.build();
HttpGet httpGet = new HttpGet(uri);
response = httpclient.execute(httpGet);
int statusCode = response.getStatusLine().getStatusCode();
LOG.info("doGet statusCode:{}", statusCode);
HttpEntity entity = response.getEntity();
if (entity != null) {
instream = entity.getContent();
result = IOUtils.toString(instream, charset);
}
} catch (IOException var17) {
LOG.error("doGet IO ERROR :{}", var17.getMessage());
} catch (URISyntaxException var18) {
LOG.error("doGet URISyntaxException :{}", var18.getMessage());
} finally {
if (null != instream) {
instream.close();
} if (null != response) {
response.close();
} if (null != httpclient) {
httpclient.close();
} LOG.info("close instream response httpClient connection succ");
} return result;
}
} public static String doPost(String apiUrl) throws Exception {
return doPost(apiUrl, (Map)(new HashMap()));
} public static String doPost(String url, Map<String, Object> params) throws Exception {
String result = null;
String param = "";
if (StringUtils.isEmpty(url)) {
LOG.info("warn:doPost url is null or '' ");
return result;
} else {
List<NameValuePair> pairList = new ArrayList(params.size());
Iterator var5 = params.entrySet().iterator(); while(var5.hasNext()) {
Entry<String, Object> entry = (Entry)var5.next();
NameValuePair pair = new BasicNameValuePair((String)entry.getKey(), entry.getValue().toString());
pairList.add(pair);
if (param.equals("")) {
param = (String)entry.getKey() + "=" + entry.getValue();
} else {
param = param + "&" + (String)entry.getKey() + "=" + entry.getValue();
}
} LOG.info("http请求地址:" + url + "?" + param);
CloseableHttpClient httpClient = HttpClients.createDefault();
HttpPost httpPost = new HttpPost(url);
CloseableHttpResponse response = null;
InputStream instream = null; try {
httpPost.setConfig(requestConfig);
httpPost.setEntity(new UrlEncodedFormEntity(pairList, Charset.forName("UTF-8")));
response = httpClient.execute(httpPost);
int statusCode = response.getStatusLine().getStatusCode();
LOG.info("doPost statusCode:{}", statusCode);
HttpEntity entity = response.getEntity();
if (entity != null) {
instream = entity.getContent();
result = IOUtils.toString(instream, "UTF-8");
LOG.info("doPost Result:{}", result);
}
} catch (IOException var14) {
LOG.error("doPost ERROR :{}", var14.getMessage());
} finally {
if (null != instream) {
instream.close();
} if (null != response) {
response.close();
} if (null != httpClient) {
httpClient.close();
} LOG.info("close instream response httpClient connection succ");
} return result;
}
} public static String doPost(String url, String xml) throws Exception {
String result = null;
if (StringUtils.isEmpty(url)) {
LOG.info("warn:doPost url is null or '' ");
return result;
} else {
CloseableHttpClient httpClient = HttpClients.createDefault();
HttpPost httpPost = new HttpPost(url);
CloseableHttpResponse response = null;
InputStream instream = null; try {
LOG.info("短信请求服务器地址:" + url + "?" + xml);
httpPost.setConfig(requestConfig);
httpPost.setEntity(new StringEntity(xml, "GBK"));
response = httpClient.execute(httpPost);
int statusCode = response.getStatusLine().getStatusCode();
LOG.info("doPost statusCode:{}", statusCode);
HttpEntity entity = response.getEntity();
if (entity != null) {
instream = entity.getContent();
result = IOUtils.toString(instream, "UTF-8");
}
} catch (IOException var12) {
LOG.error("doPost ERROR :{}", var12.getMessage());
} finally {
if (null != instream) {
instream.close();
} if (null != response) {
response.close();
} if (null != httpClient) {
httpClient.close();
} LOG.info("close instream response httpClient connection succ");
} return result;
}
} public static String doPost(String url, Object json) throws Exception {
String result = null;
if (StringUtils.isEmpty(url)) {
LOG.info("warn:doPostByJson url is null or '' ");
return result;
} else {
CloseableHttpClient httpClient = HttpClients.createDefault();
HttpPost httpPost = new HttpPost(url);
CloseableHttpResponse response = null;
InputStream instream = null; try {
httpPost.setConfig(requestConfig);
StringEntity stringEntity = new StringEntity(json.toString(), "UTF-8");
stringEntity.setContentEncoding("UTF-8");
stringEntity.setContentType("application/json");
httpPost.setEntity(stringEntity);
response = httpClient.execute(httpPost);
int statusCode = response.getStatusLine().getStatusCode();
LOG.info("doPost statusCode:{}", statusCode);
HttpEntity entity = response.getEntity();
if (entity != null) {
instream = entity.getContent();
result = IOUtils.toString(instream, "UTF-8");
}
} catch (IOException var13) {
LOG.error("doPost BY JSON ERROR :{}", var13.getMessage());
} finally {
if (null != instream) {
instream.close();
} if (null != response) {
response.close();
} if (null != httpClient) {
httpClient.close();
} } return result;
}
} public static String doPostPay(String url, Object json) throws Exception {
String result = null;
if (StringUtils.isEmpty(url)) {
LOG.info("warn:doPostByJson url is null or '' ");
return result;
} else {
CloseableHttpClient httpClient = HttpClients.createDefault();
HttpPost httpPost = new HttpPost(url);
CloseableHttpResponse response = null;
InputStream instream = null; try {
httpPost.setConfig(requestConfig);
StringEntity stringEntity = new StringEntity(json.toString(), "UTF-8");
httpPost.setHeader("Content-Type", "application/json;charset=utf-8");
httpPost.setHeader("Accept", "application/json");
stringEntity.setContentEncoding("UTF-8");
stringEntity.setContentType("application/json");
httpPost.setEntity(stringEntity);
response = httpClient.execute(httpPost);
int statusCode = response.getStatusLine().getStatusCode();
LOG.info("doPost statusCode:{}", statusCode);
HttpEntity entity = response.getEntity();
if (entity != null) {
instream = entity.getContent();
result = IOUtils.toString(instream, "UTF-8");
}
} catch (IOException var13) {
LOG.error("doPost BY JSON ERROR :{}", var13.getMessage());
} finally {
if (null != instream) {
instream.close();
} if (null != response) {
response.close();
} if (null != httpClient) {
httpClient.close();
} } return result;
}
} public static String doPostSSL(String apiUrl, Map<String, Object> params) throws Exception {
String result = null;
if (StringUtils.isEmpty(apiUrl)) {
LOG.info("warn:doPostSSL url is null or '' ");
return result;
} else {
CloseableHttpClient httpClient = HttpClients.custom().setSSLSocketFactory(createSSLConnSocketFactory()).setConnectionManager(connMgr).setDefaultRequestConfig(requestConfig).build();
HttpPost httpPost = new HttpPost(apiUrl);
CloseableHttpResponse response = null;
InputStream instream = null; try {
httpPost.setConfig(requestConfig);
List<NameValuePair> pairList = new ArrayList(params.size());
Iterator var8 = params.entrySet().iterator(); Entry entry;
while(var8.hasNext()) {
entry = (Entry)var8.next();
NameValuePair pair = new BasicNameValuePair((String)entry.getKey(), entry.getValue().toString());
pairList.add(pair);
} httpPost.setEntity(new UrlEncodedFormEntity(pairList, Charset.forName("utf-8")));
response = httpClient.execute(httpPost);
int statusCode = response.getStatusLine().getStatusCode();
if (statusCode != 200) {
LOG.info("doPostSSL statusCode:{}", statusCode);
entry = null;
return String.valueOf(entry);
} HttpEntity entity = response.getEntity();
if (entity != null) {
instream = entity.getContent();
result = IOUtils.toString(instream, "UTF-8");
}
} catch (Exception var14) {
LOG.error("doPostSSL ERROR :{}", var14.getMessage());
} finally {
if (null != instream) {
instream.close();
} if (null != response) {
response.close();
} if (null != httpClient) {
httpClient.close();
} LOG.info("close instream response httpClient connection succ");
} return result;
}
} public static String doPostSSL(String apiUrl, Object json) throws Exception {
String result = null;
if (StringUtils.isEmpty(apiUrl)) {
LOG.info("warn:doPostSSL By Json url is null or '' ");
return result;
} else {
CloseableHttpClient httpClient = HttpClients.custom().setSSLSocketFactory(createSSLConnSocketFactory()).setConnectionManager(connMgr).setDefaultRequestConfig(requestConfig).build();
HttpPost httpPost = new HttpPost(apiUrl);
CloseableHttpResponse response = null;
InputStream instream = null; HttpEntity entity;
try {
httpPost.setConfig(requestConfig);
StringEntity stringEntity = new StringEntity(json.toString(), "UTF-8");
stringEntity.setContentEncoding("UTF-8");
stringEntity.setContentType("application/json");
httpPost.setEntity(stringEntity);
response = httpClient.execute(httpPost);
int statusCode = response.getStatusLine().getStatusCode();
if (statusCode == 200) {
entity = response.getEntity();
if (entity != null) {
instream = entity.getContent();
result = IOUtils.toString(instream, "UTF-8");
} return result;
} LOG.info("doPostSSL by json statusCode:{}", statusCode);
entity = null;
} catch (Exception var13) {
LOG.error("doPostSSL BY JSON ERROR :{}", var13.getMessage());
return result;
} finally {
if (null != instream) {
instream.close();
} if (null != response) {
response.close();
} if (null != httpClient) {
httpClient.close();
} LOG.info("close instream response httpClient connection succ");
} return String.valueOf(entity);
}
} private static SSLConnectionSocketFactory createSSLConnSocketFactory() {
SSLConnectionSocketFactory sslsf = null; try {
SSLContext sslContext = (new SSLContextBuilder()).loadTrustMaterial((KeyStore)null, new TrustStrategy() {
public boolean isTrusted(X509Certificate[] chain, String authType) throws CertificateException {
return true;
}
}).build();
sslsf = new SSLConnectionSocketFactory(sslContext, new X509HostnameVerifier() {
public boolean verify(String arg0, SSLSession arg1) {
return true;
} public void verify(String host, SSLSocket ssl) throws IOException {
} public void verify(String host, X509Certificate cert) throws SSLException {
} public void verify(String host, String[] cns, String[] subjectAlts) throws SSLException {
}
});
} catch (GeneralSecurityException var2) {
LOG.error("createSSLConnSocketFactory ERROR :{}", var2.getMessage());
} return sslsf;
} public static String doPostPay(String url, Object json, String authorization) throws Exception {
String result = null;
if (StringUtils.isEmpty(url)) {
LOG.info("warn:doPostByJson url is null or '' ");
return result;
} else {
CloseableHttpClient httpClient = HttpClients.createDefault();
HttpPost httpPost = new HttpPost(url);
CloseableHttpResponse response = null;
InputStream instream = null; try {
httpPost.setConfig(requestConfig);
StringEntity stringEntity = new StringEntity(json.toString(), "UTF-8");
httpPost.setHeader("Content-Type", "application/json;charset=utf-8");
httpPost.setHeader("Accept", "application/json");
httpPost.setHeader("Authorization", authorization);
stringEntity.setContentEncoding("UTF-8");
stringEntity.setContentType("application/json");
httpPost.setEntity(stringEntity);
response = httpClient.execute(httpPost);
int statusCode = response.getStatusLine().getStatusCode();
LOG.info("doPost statusCode:{}", statusCode);
HttpEntity entity = response.getEntity();
if (entity != null) {
instream = entity.getContent();
result = IOUtils.toString(instream, "UTF-8");
}
} catch (IOException var14) {
LOG.error("doPost BY JSON ERROR :{}", var14.getMessage());
} finally {
if (null != instream) {
instream.close();
} if (null != response) {
response.close();
} if (null != httpClient) {
httpClient.close();
} } return result;
}
} public static String doPostPayUpgraded(String url, Object json, String authorization) throws Exception {
String result = null;
if (StringUtils.isEmpty(url)) {
LOG.info("新支付接口url不能为空！");
return result;
} else {
CloseableHttpClient httpClient = HttpClients.createDefault();
HttpPost httpPost = new HttpPost(url);
CloseableHttpResponse response = null;
InputStream instream = null; try {
httpPost.setConfig(requestConfig);
StringEntity stringEntity = new StringEntity(json.toString(), "UTF-8");
httpPost.setHeader("Accept", "application/json");
httpPost.setHeader("Content-Type", "application/json;charset=utf-8");
httpPost.setHeader("Authorization", authorization);
stringEntity.setContentEncoding("UTF-8");
stringEntity.setContentType("application/json");
httpPost.setEntity(stringEntity);
response = httpClient.execute(httpPost);
int statusCode = response.getStatusLine().getStatusCode();
LOG.info("新支付请求状态 statusCode:{}", statusCode);
HttpEntity entity = response.getEntity();
if (entity != null) {
instream = entity.getContent();
result = IOUtils.toString(instream, "UTF-8");
}
} catch (IOException var14) {
LOG.error("新支付接口发送异常:{}", var14.getMessage());
} finally {
if (null != instream) {
instream.close();
} if (null != response) {
response.close();
} if (null != httpClient) {
httpClient.close();
} } return result;
}
} static {
connMgr.setMaxTotal(100);
connMgr.setDefaultMaxPerRoute(100);
Builder configBuilder = RequestConfig.custom();
configBuilder.setConnectTimeout(10000);
configBuilder.setSocketTimeout(40000);
configBuilder.setConnectionRequestTimeout(7000);
configBuilder.setStaleConnectionCheckEnabled(true);
requestConfig = configBuilder.build();
}
}
HttpClientUtils
直接拷贝就可以使用了。
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