httpclient提交实例代理方式（账号密码）非代理方式

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我是靠谱客的博主机智镜子，最近开发中收集的这篇文章主要介绍httpclient提交实例代理方式（账号密码）非代理方式，觉得挺不错的，现在分享给大家，希望可以做个参考。

概述

import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import org.apache.commons.lang.StringUtils;
import org.apache.http.HttpHost;
import org.apache.http.NameValuePair;
import org.apache.http.auth.AuthScope;
import org.apache.http.auth.UsernamePasswordCredentials;
import org.apache.http.client.CredentialsProvider;
import org.apache.http.client.config.RequestConfig;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.CloseableHttpResponse;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.impl.client.BasicCredentialsProvider;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.message.BasicNameValuePair;
import org.apache.http.util.EntityUtils;
import org.junit.Test;

public class HttpClientUtil {

   /**
   * 采用代理方式post提交
   * @return
   */
   public static String GetProxyPostResult(String proxyHost,int proxyPort,String userName,String password,String postUrl,Map<String,String> parameters){
       CloseableHttpClient httpclient = null;
       if(!StringUtils.isBlank(userName)){
       CredentialsProvider credsProvider = new BasicCredentialsProvider();
       credsProvider.setCredentials(new AuthScope(proxyHost, proxyPort),
               new UsernamePasswordCredentials(userName, password));
       httpclient = HttpClients.custom()
               .setDefaultCredentialsProvider(credsProvider).build();
       }
       else
           HttpClients.createDefault();
       HttpHost proxy = null;
       if(proxyPort != 0 && proxyPort !=80){
          proxy = new HttpHost(proxyHost, proxyPort);
       }
       else
           proxy = new HttpHost(proxyHost);
       RequestConfig config = RequestConfig.custom().setProxy(proxy).build();
       HttpPost post = new HttpPost(postUrl);
       List<NameValuePair> nvps = new ArrayList<NameValuePair>();
       if(null != parameters && parameters.size()>0){
           for(Map.Entry<String,String> entry : parameters.entrySet()){
               nvps.add(new BasicNameValuePair(entry.getKey(), entry.getValue()));
           }
       }
       try {
           post.setEntity(new UrlEncodedFormEntity(nvps,"utf-8"));
           post.setConfig(config);
           CloseableHttpResponse response = httpclient.execute(post);
           return EntityUtils.toString(response.getEntity());
       } catch (Exception e) {
           return null;
       }
   }
   /**
   * 采用代理方式post提交
   * 只有代理服务器和端口，不需账号密码验证
   * @return
   */
   public static String GetProxyPostResult(String proxyHost,int proxyPort,String postUrl,Map<String,String> parameters){
       return GetProxyPostResult(proxyHost,proxyPort,null,null,postUrl,parameters);
   }
   /**
   * 采用代理方式post提交
   * 只有代理服务器
   * @return
   */
   public static String GetProxyPostResult(String proxyHost,String postUrl,Map<String,String> parameters){
       return GetProxyPostResult(proxyHost,0,null,null,postUrl,parameters);
   }
   /**
   * 直接post提交，无需代理
   */
   public static String GetDefaultPostResult(String postUrl,Map<String,String> parameters){
       CloseableHttpClient httpclient = HttpClients.createDefault();
       HttpPost post = new HttpPost(postUrl);
       List<NameValuePair> nvps = new ArrayList<NameValuePair>();
       if(null != parameters && parameters.size()>0){
           for(Map.Entry<String,String> entry : parameters.entrySet()){
               nvps.add(new BasicNameValuePair(entry.getKey(), entry.getValue()));
           }
       }
       try {
           post.setEntity(new UrlEncodedFormEntity(nvps,"utf-8"));
           CloseableHttpResponse response = httpclient.execute(post);
           return EntityUtils.toString(response.getEntity());
       } catch (Exception e) {
           return null;
       }
   }

}