Java接口自動化測試(二) — POST請求

1、創建獲取了解客戶端的工具
2、創建post請求
3、添加請求頭
4、封裝請求參數
5、將參數添加到請求實體
6、執行請求得到響應結果
7、獲取響應結果

package com.test.httpclient;

import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.JSONObject;
import com.alibaba.fastjson.serializer.SerializerFeature;
import org.apache.http.HttpEntity;
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.HttpClients;
import org.apache.http.util.EntityUtils;
import java.io.IOException;
import java.util.HashMap;
import java.util.Map;

public class HttpClientPost {
      public static void main(String[] args) throws Exception{
        //創建一個獲取連接客戶端的工具
        CloseableHttpClient httpClient = HttpClients.createDefault();
        //創建Post請求
        HttpPost httpPost = new HttpPost("http://localhost:8081/api/login");
        //添加請求頭
        httpPost.addHeader("Content-Type","application/json;charset=UTF-8");
        //封裝請求參數
        Map map = new HashMap();
        map.put("username","admin");
        map.put("password","123");
        JSONObject jsonString = new JSONObject(map);
        StringEntity entity = new StringEntity(jsonString.toString(),"UTF-8");
        //將封裝的參數添加到Post請求中
        httpPost.setEntity(entity);
        //執行請求
        CloseableHttpResponse response =  httpClient.execute(httpPost);
        //獲取響應的實體
        HttpEntity responseEntity = response.getEntity();
        //轉化成字符串
        String entityString = EntityUtils.toString(responseEntity);
        //轉換成JSON格式輸出
        JSONObject jsonObject =  JSONObject.parseObject(entityString);
        String  string = JSON.toJSONString(jsonObject,SerializerFeature.PrettyFormat);
        //打印返回結果
        System.out.println(jsonObject.get("code"));
    }
}