• httpPost请求用java代码实现的方法


    原文:https://www.cnblogs.com/johnson-yuan/p/6713384.html

    package com.day3.sample;

    //首先下面我我们需要导入的jar包和文件

    import java.io.IOException; import java.util.ArrayList; import java.util.List;

    import org.apache.http.Consts;

    import org.apache.http.NameValuePair;

    import org.apache.http.client.ClientProtocolException;

    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.CloseableHttpClient;

    import org.apache.http.impl.client.HttpClients;

    import org.apache.http.message.BasicNameValuePair;

    import org.apache.http.util.EntityUtils;

    public class HttpClientDemo2 {

      

      //构造POST请求

      public void test_post(){

        //新建一个客户对象

        CloseableHttpClient client = HttpClients.createDefault();

        //新建一个HttpPost请求的对象 --并将uri传给这个对象

        HttpPost post = new HttpPost("http://localhost:8080/test1312/Calc");

        //使用NameValuePair  键值对  对参数进行打包

        List<NameValuePair> list = new ArrayList<NameValuePair>

        list.add(new BasicNameValuePair("a","1"));

        list.add(new BasicNameValuePair("b","2"));
      
        //4.对打包好的参数,使用UrlEncodedFormEntity工具类生成实体的类型数据

        UrlEncodedFormEntity entity = new UrlEncodedFormEntity(list,Consts.UTF_8);
      
        //5.将含有请求参数的实体对象放到post请求中
        post.setEntity(entity);
      
        //6.新建一个响应对象来接收客户端执行post的结果
        CloseableHttpResponse response = client.execute(post);
      
        //7.从响应对象中提取需要的结果-->实际结果,与预期结果进行对比
        if(response.getStatusLine().getStatusCode() == 200){

            System.out.println(EntityUtils.toString(response.getEntity()));

        }
      
       }

    }

    //编写过程中如果有异常请选择shrow这个异常

    //然后对这个类中的方法进行调用就可以实现了对接口的测试了

    package com.day3.sample;

    import java.io.IOException;

    import org.apache.http.client.ClientProtocolException;

    public class HttpClientDemo2Test {

        public static void main(String[] args) throws ClientProtocolException, IOException {
            HttpClientDemo2 demo2 = new HttpClientDemo2();
            demo2.test_post();

        }

    }

    /*
     * Project: payment.wechat.api
     *
     * File Created at 2017年12月27日
     *
     * Copyright 2016 CMCC Corporation Limited.
     * All rights reserved.
     *
     * This software is the confidential and proprietary information of
     * ZYHY Company. ("Confidential Information").  You shall not
     * disclose such Confidential Information and shall use it only in
     * accordance with the terms of the license.
     */
    package com.cmcc.hybj.payment.wechatapi.controller;

    import java.io.IOException;
    import java.util.ArrayList;
    import java.util.List;

    import org.apache.http.Consts;
    import org.apache.http.NameValuePair;
    import org.apache.http.client.ClientProtocolException;
    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.CloseableHttpClient;
    import org.apache.http.impl.client.HttpClients;
    import org.apache.http.message.BasicNameValuePair;
    import org.apache.http.util.EntityUtils;

    /**
     * @Type HttpClientDemo2.java
     * @Desc    //构造post请求
     * @author gy
     * @date 2017年12月27日 下午2:20:52
     * @version
     */
    public class HttpClientDemo2 {
        //构造post请求
        public void test_post() throws ClientProtocolException, IOException {
                //新建一个客户对象
            CloseableHttpClient client = HttpClients.createDefault();
          //新建一个HttpPost请求的对象 --并将uri传给这个对象
            HttpPost post = new HttpPost("http://localhost:8080/test1312/Calc");
          //使用NameValuePair  键值对  对参数进行打包
            List<NameValuePair> list = new ArrayList<NameValuePair>();
            list.add(new BasicNameValuePair("a", "1"));
            list.add(new BasicNameValuePair("b", "2"));
          //4.对打包好的参数,使用UrlEncodedFormEntity工具类生成实体的类型数据
            UrlEncodedFormEntity entity = new UrlEncodedFormEntity(list, Consts.UTF_8);
          //5.将含有请求参数的实体对象放到post请求中
            post.setEntity(entity);

           //6.新建一个响应对象来接收客户端执行post的结果
            CloseableHttpResponse response = client.execute(post);
            //7.从响应对象中提取需要的结果-->实际结果,与预期结果进行对比
            if (response.getStatusLine().getStatusCode() == 200) {
                System.out.println(EntityUtils.toString(response.getEntity()));

            }
        }
        
        public static void main(String[] args) throws ClientProtocolException, IOException {
            HttpClientDemo2 demo2 = new HttpClientDemo2();
            demo2.test_post();

        }

    }

    /**
     * Revision history
     * -------------------------------------------------------------------------
     *
     * Date Author Note
     * -------------------------------------------------------------------------
     * 2017年12月27日 Administrator creat
     */

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  • 原文地址:https://www.cnblogs.com/gyadmin/p/8125492.html
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