httpclient4.5.2 Post请求支持http和https-白红宇

httpclient4.5.2 Post请求支持http和https

阅读量：4690 次

发布时间：2019-06-09

本文共 5511 字，大约阅读时间需要 18 分钟。

先导入所需的jar包，pom.xml


                 
      
       org.springframework.boot
                  
      
       spring-boot-starter-web
              
             
                 
      
       org.apache.commons
                  
      
       commons-lang3
                  
      
       3.7
      
              
             
                 
      
       org.apache.httpcomponents
                  
      
       httpclient
                  
      
       4.5.2
      
              
             
                 
      
       io.jsonwebtoken
                  
      
       jjwt
                  
      
       0.9.0

写一个工具类 HttpUtil

package cn.nintendoswitch.user.api.boot.common.util;import java.util.ArrayList;import java.util.List;import java.util.Map;import org.apache.http.Header;import org.apache.http.HttpResponse;import org.apache.http.HttpStatus;import org.apache.http.NameValuePair;import org.apache.http.client.entity.UrlEncodedFormEntity;import org.apache.http.client.methods.HttpPost;import org.apache.http.impl.client.CloseableHttpClient;import org.apache.http.impl.client.HttpClientBuilder;import org.apache.http.message.BasicNameValuePair;import org.apache.http.util.EntityUtils;import org.apache.http.HttpHost;import org.apache.http.client.config.RequestConfig;import org.apache.http.impl.client.HttpClients;public class HttpUtil {    public static String doPost(String url, Header[] headers, Map
     
       paramMaps) {        String result = null;        HttpPost httpPost = new HttpPost(url);        HttpClientBuilder httpClientBuilder = HttpClientBuilder.create();        CloseableHttpClient closeableHttpClient = httpClientBuilder.build();        try {            httpPost.setHeaders(headers);            List
      
        pairList = new ArrayList<>();            for (Map.Entry
       
         entry : paramMaps.entrySet()) {                String key = entry.getKey();                String value = (String) entry.getValue();                pairList.add(new BasicNameValuePair(key, value));            }            UrlEncodedFormEntity urlEntity = new UrlEncodedFormEntity(pairList, "UTF-8");            httpPost.setEntity(urlEntity);            HttpResponse resp = closeableHttpClient.execute(httpPost);            if (resp.getStatusLine().getStatusCode() == HttpStatus.SC_OK) {                result = EntityUtils.toString(resp.getEntity(), "UTF-8").trim();            }        } catch (Exception e) {            throw new RuntimeException("HTTP post failed.", e);        } finally {            httpPost.abort();            try {                closeableHttpClient.close();            } catch (Exception e2) {                throw new RuntimeException("Close CloseableHttpClient failed.", e2);            }        }                return result;    }     // 使用代理服务器IP 请求出去 public static String doHttpsPost(String url, Header[] headers, Map
        
          paramMaps) {
            // 设置代理         HttpHost proxy = new HttpHost(代理IP, 端口号, "http");         RequestConfig defaultRequestConfig = RequestConfig.custom().setProxy(proxy).build();         String result = null;         CloseableHttpClient httpClient = null;         HttpPost httpPost = new HttpPost(url);         try {
            　　　　httpPost.setHeaders(headers); 　　　　　　　　　httpPost.setEntity(httpEntity); 　　　　　　　　　httpClient = HttpClients.custom().setDefaultRequestConfig(defaultRequestConfig).build(); 　　　　　　　　　HttpResponse resp = httpClient.execute(httpPost); 　　　　　　　　　result = EntityUtils.toString(resp.getEntity(), "UTF-8").trim();         } catch (Exception e) {
                 throw new RuntimeException("HTTP Post failed.", e);         } finally {
    　　　　　　　　httpPost.abort(); 　　　　　　　　try {
    　　　　　　　　　　　　httpClient.close(); 　　　　　　　　} catch (IOException e) {
    　　　　　　　　　　　　throw new RuntimeException("Close CoseabledHttpClient failed.", e); 　　　　　　　　}         }         return result;     }     }

写个测试调用方法：

package cn.nintendoswitch.user.api.boot.controller;import java.util.HashMap;import java.util.Map;import javax.servlet.http.HttpServletRequest;import javax.servlet.http.HttpServletResponse;import org.apache.http.Header;import org.apache.http.message.BasicHeader;import org.springframework.http.MediaType;import org.springframework.stereotype.Controller;import org.springframework.web.bind.annotation.RequestMapping;import cn.nintendoswitch.user.api.boot.common.util.HttpUtil;import io.jsonwebtoken.impl.Base64Codec;@Controllerpublic class IndexController {        @RequestMapping("/indexPage")    public void indexPage(HttpServletRequest request, HttpServletResponse response) {        System.out.println("welcome to shanghai.");    }        @RequestMapping("/testPostWaveToken")    public void testPostWaveToken(HttpServletRequest request, HttpServletResponse response) {        String url = "https://xxxxxx.com.cn/aaa/bbb/";                String base64Content = "12121212121:aaaaaaaaaaaaa";        String encodeContent = Base64Codec.BASE64.encode(base64Content);        Header[] headers = {
   new BasicHeader("token", "ABCDEF " + encodeContent),                new BasicHeader("Content-Type", MediaType.APPLICATION_FORM_URLENCODED_VALUE)};        Map
     
       paramMaps = new HashMap<>();        paramMaps.put("param01", "value01");        String resutlMsg = HttpUtil.doPost(url, headers, paramMaps);        System.out.println("return info is : " + resutlMsg);    }}

好了，备忘一下，需要的朋友可以转载，但请注明原著来源，谢谢。

转载于:https://www.cnblogs.com/jimmyshan-study/p/11134671.html

你可能感兴趣的文章

Git for Android Studio 学习笔记

查看>>

pip 警告！The default format will switch to columns in the future

查看>>

Arrays类学习笔记