使用HttpClient進行遠程接口測試

前兩天在工作中，項目組長給我了一個遠程接口讓我給測一下，因為是http協議，所以我首先想到了用httpClient工具類來測試，網上一查，找到了好多示例代碼，隨便復制了一個demo進行了簡單的修改，結果怎麼測試都是連接超時，試了很多個demo也不好使，最後發現是因為我們公司訪問外網是通過代理，所以在進行測試的時候需要配置代理。

以下是我的測試程序

用到的jar包：

package com.lym.test;

import org.apache.http.HttpEntity;
import org.apache.http.HttpHost;
import org.apache.http.client.config.RequestConfig;
import org.apache.http.client.methods.CloseableHttpResponse;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.entity.StringEntity;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClientBuilder;
import org.apache.http.util.EntityUtils;

import com.google.gson.JsonObject;

public class HttpClientTest {
   
    public static void main(String args[]) throws Exception {
       
        // 創建HttpClientBuilder
        HttpClientBuilder httpClientBuilder = HttpClientBuilder.create();
        // HttpClient
        CloseableHttpClient closeableHttpClient = httpClientBuilder.build();
        // 依次是目標請求地址，端口號,協議類型
        HttpHost target = new HttpHost("61.144.244.6:8888/sztmerchant/merchant/addIsztMerchant.htm", 8888, "http");
        // 依次是代理地址，代理端口號，協議類型
        HttpHost proxy = new HttpHost("proxy3.bj.petrochina", 8080, "http");
        RequestConfig config = RequestConfig.custom().setProxy(proxy).build();

        // 請求地址
        HttpPost httpPost = new HttpPost("http://61.144.244.6:8888/sztmerchant/merchant/addIsztMerchant.htm");
        // 設置頭信息
        httpPost.addHeader("Content-type", "application/json; charset=utf-8");
        httpPost.setHeader("Accept", "application/json");
        httpPost.setConfig(config);
       
        // 創建參數json串
        JsonObject jsonObj = new JsonObject();
        jsonObj.addProperty("merchantNo", "33300911238");
        jsonObj.addProperty("merchantName", "電商運營生產測試1238");
        String jsonStr = jsonObj.toString();
        System.out.println("parameters: " + jsonStr);
       
        StringEntity entity;
        try {
            entity = new StringEntity(jsonStr, "UTF-8");
            httpPost.setEntity(entity);
            CloseableHttpResponse response = closeableHttpClient.execute(target, httpPost);
            // getEntity()
            HttpEntity httpEntity = response.getEntity();
            if (httpEntity != null) {
                // 打印響應內容
                System.out.println("result: " + EntityUtils.toString(httpEntity, "UTF-8"));
            }else {
                System.out.println("無響應內容");
            }
            // 釋放資源
            if(closeableHttpClient != null) {
                closeableHttpClient.close();               
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
   
}

HttpClient4 用法 由HttpClient3 升級到 HttpClient4 必看  http://www.linuxidc.com/Linux/2015-06/119100.htm

HttpClient 教程  http://www.linuxidc.com/Linux/2015-06/119099.htm

使用HttpClient實現文件的上傳下載 http://www.linuxidc.com/Linux/2014-07/104303.htm

Android 實現 HttpClient 請求Https  http://www.linuxidc.com/Linux/2014-05/102306.htm

Android使用HttpClient下載圖片 http://www.linuxidc.com/Linux/2014-05/101855.htm

HttpClient使用詳解  http://www.linuxidc.com/Linux/2014-08/104945.htm