Java的HttpURLConnection通过POST请求中文乱码

创建工具HttpRequestUtil类：

import java.util.ArrayList;import java.util.Iterator;import java.util.List;import java.util.Map;import java.util.Map.Entry;import org.apache.http.HttpEntity;import org.apache.http.HttpResponse;import org.apache.http.NameValuePair;import org.apache.http.client.HttpClient;import org.apache.http.client.entity.UrlEncodedFormEntity;import org.apache.http.client.methods.HttpPost;import org.apache.http.message.BasicNameValuePair;import org.apache.http.util.EntityUtils;public class HttpRequestUtil {        @SuppressWarnings({ "rawtypes", "unchecked" })public static String doPost(String url,Map<String,String> map,String charset){          HttpClient httpClient = null;          HttpPost httpPost = null;          String result = null;          try{              httpClient = new SSLClient();              httpPost = new HttpPost(url);              //设置参数              List<NameValuePair> list = new ArrayList<NameValuePair>();              Iterator iterator = map.entrySet().iterator();              while(iterator.hasNext()){                  Entry<String,String> elem = (Entry<String, String>) iterator.next();                  list.add(new BasicNameValuePair(elem.getKey(),elem.getValue()));              }              if(list.size() > 0){                  UrlEncodedFormEntity entity = new UrlEncodedFormEntity(list,charset);                  httpPost.setEntity(entity);              }              HttpResponse response = httpClient.execute(httpPost);              if(response != null){                  HttpEntity resEntity = response.getEntity();                  if(resEntity != null){                      result = EntityUtils.toString(resEntity,charset);                  }              }          }catch(Exception ex){              ex.printStackTrace();          }          return result;      }          }

2.创建SSLClient类

import java.security.cert.CertificateException;  import java.security.cert.X509Certificate;  import javax.net.ssl.SSLContext;  import javax.net.ssl.TrustManager;  import javax.net.ssl.X509TrustManager;  import org.apache.http.conn.ClientConnectionManager;  import org.apache.http.conn.scheme.Scheme;  import org.apache.http.conn.scheme.SchemeRegistry;  import org.apache.http.conn.ssl.SSLSocketFactory;  import org.apache.http.impl.client.DefaultHttpClient; public class SSLClient  extends DefaultHttpClient{public SSLClient() throws Exception{          super();          SSLContext ctx = SSLContext.getInstance("TLS");          X509TrustManager tm = new X509TrustManager() {                  @Override                  public void checkClientTrusted(X509Certificate[] chain,                          String authType) throws CertificateException {                  }                  @Override                  public void checkServerTrusted(X509Certificate[] chain,                          String authType) throws CertificateException {                  }                  @Override                  public X509Certificate[] getAcceptedIssuers() {                      return null;                  }          };          ctx.init(null, new TrustManager[]{tm}, null);          SSLSocketFactory ssf = new SSLSocketFactory(ctx,SSLSocketFactory.ALLOW_ALL_HOSTNAME_VERIFIER);          ClientConnectionManager ccm = this.getConnectionManager();          SchemeRegistry sr = ccm.getSchemeRegistry();          sr.register(new Scheme("https", 443, ssf));      }  }

3，需要的jar包文件:

commons-codec-1.6.jar

commons-logging-1.1.1.jar

fluent-hc-4.2.1.jar

httpclient-4.2.1.jar

httpclient-cache-4.2.1.jar

httpcore-4.2.1.jar

httpmime-4.2.1.jar