一、环境准备

1.导入httpClient依赖包

org.apache.httpcomponents httpclient 4.5.2

导入fastJson依赖实现实体类序列化和json反序列操作

com.alibaba fastjson 1.2.54

testng依赖

org.testng testng 6.8.8 test

二、Get请求发包代码实现

package test;

import java.util.Arrays;
import java.util.HashMap;

import org.apache.http.Header;
import org.apache.http.client.methods.CloseableHttpResponse;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.util.EntityUtils;
import org.testng.Assert;
import org.testng.annotations.Test;

import com.alibaba.fastjson.JSONObject;

public class HttpClientTest {
String url = "http://localhost:8081/user/login";
String get_params = "username=xiaobing&password=123456";
@Test
public void GetTest() {
//创建HttpGet对象
HttpGet httpGet = new HttpGet(url+"?"+get_params);
//准备HttpClient客户端
CloseableHttpClient httpClient =HttpClients.createDefault();
CloseableHttpResponse httpResponse = null;
try {
//发送请求
httpResponse = httpClient.execute(httpGet);
} catch (Exception e) {
e.printStackTrace();
}
//取出响应状态码
int code = httpResponse.getStatusLine().getStatusCode();
System.out.println("响应码："+code);
//取出消息头
Header[] header = httpResponse.getAllHeaders();
System.out.println("消息头:"+Arrays.toString(header));
//取出响应报文
String result = null;
try {
//使用EntityUtils工具类将Entity实体类toString转换
result = EntityUtils.toString(httpResponse.getEntity());
System.out.println("响应报文："+result);
} catch (Exception e) {
e.printStackTrace();
}
HashMap map = JSONObject.parseObject(result, HashMap.class);
String actual = map.get("message");
System.out.println("actual_message:"+actual);
String expected = "登录成功";
//断言
Assert.assertEquals(actual, expected);
}
}

响应码：200
消息头:[Content-Type: application/json;charset=UTF-8, Transfer-Encoding: chunked, Date: Sun, 14 Jul 2019 14:06:44 GMT]
响应报文：{"status":"1","message":"登录成功"}
actual_message:登录成功

PASSED: GetTest

Default test  

Tests run: 1, Failures: 0, Skips: 0

===============================================
Default suite

Total tests run: 1, Failures: 0, Skips: 0

三、POST请求发包代码实现（表单方式）

服务端：

@RestController//控制器类
@RequestMapping("/user")//映射路径
public class UserController {
@RequestMapping(value="/login",method=RequestMethod.POST,consumes="application/x-www-form-urlencoded")
public Result login(User user) {
　　 。。。 。。。
}

客户端：

@Test
public void postFormSend() {
//测试数据准备
String url = "http://localhost:8081/user/login";
String params = "username=xiaobing&password=123456";
//创建HttpPost对象
HttpPost httpPost = new HttpPost(url);
//将Content-Type类型添加到消息头
Header header = new BasicHeader("Content-Type","application/x-www-form-urlencoded;charset=utf-8");
httpPost.addHeader(header);
//将表单参数添加到Entity实体类放到请求体
HttpEntity entity = new StringEntity(params, "UTF-8");
httpPost.setEntity(entity);
//准备HttpClient客户端
CloseableHttpClient httpClient =HttpClients.createDefault();
CloseableHttpResponse httpResponse = null;
try {
//发起请求
httpResponse =httpClient.execute(httpPost);
} catch (Exception e) {
e.printStackTrace();
}
int code = httpResponse.getStatusLine().getStatusCode();
System.out.println("响应码："+code);
Header[] resHeader = httpResponse.getAllHeaders();
System.out.println("消息头："+Arrays.toString(resHeader));
HttpEntity httpEntity = httpResponse.getEntity();
String result = null;
try {
result = EntityUtils.toString(httpEntity);
} catch (Exception e) {
e.printStackTrace();
}
System.out.println("响应报文："+result);
HashMap map = JSONObject.parseObject(result, HashMap.class);
String actual = map.get("message");
System.out.println("actual_message:"+actual);
String expected = "登录成功";
//断言
Assert.assertEquals(actual, expected);

}

响应码：200
消息头：[Content-Type: application/json;charset=UTF-8, Transfer-Encoding: chunked, Date: Sun, 14 Jul 2019 15:13:53 GMT]
响应报文：{"status":"1","message":"登录成功"}
actual_message:登录成功

PASSED: postFormSend

Default test  

Tests run: 1, Failures: 0, Skips: 0

===============================================
Default suite

Total tests run: 1, Failures: 0, Skips: 0

四、POST请求发包代码实现（Json方式）

服务端：

@RestController//控制器类
@RequestMapping("/user")//映射路径
public class UserController {
@RequestMapping(value="/login",method=RequestMethod.POST,consumes="application/json")
public Result login(@RequestBody(required=false)User user) {
。。。 。。。
}

客户端：

@Test
public void postJsonSend() {
//测试数据准备
String url = "http://localhost:8081/user/login";
String params = "{\"username\":\"xiaobing\",\"password\":\"123456\"}";
//创建HttpPost对象
HttpPost httpPost = new HttpPost(url);
//将Content-Type类型添加到消息头
Header header = new BasicHeader("Content-Type","application/json;charset=utf-8");
httpPost.addHeader(header);
//将表单参数添加到Entity实体类放到请求体
HttpEntity entity = new StringEntity(params, "UTF-8");
httpPost.setEntity(entity);
//准备HttpClient客户端
CloseableHttpClient httpClient =HttpClients.createDefault();
CloseableHttpResponse httpResponse = null;
try {
//发起请求
httpResponse =httpClient.execute(httpPost);
} catch (Exception e) {
e.printStackTrace();
}
int code = httpResponse.getStatusLine().getStatusCode();
System.out.println("响应码："+code);
Header[] resHeader = httpResponse.getAllHeaders();
System.out.println("消息头："+Arrays.toString(resHeader));
HttpEntity httpEntity = httpResponse.getEntity();
String result = null;
try {
result = EntityUtils.toString(httpEntity);
} catch (Exception e) {
e.printStackTrace();
}
System.out.println("响应报文："+result);
HashMap map = JSONObject.parseObject(result, HashMap.class);
String actual = map.get("message");
System.out.println("actual_message:"+actual);
String expected = "登录成功";
//断言
Assert.assertEquals(actual, expected);

}

响应码：200
消息头：[Content-Type: application/json;charset=UTF-8, Transfer-Encoding: chunked, Date: Sun, 14 Jul 2019 15:18:53 GMT]
响应报文：{"status":"1","message":"登录成功"}
actual_message:登录成功

PASSED: postJsonSend

Default test  

Tests run: 1, Failures: 0, Skips: 0

===============================================
Default suite

Total tests run: 1, Failures: 0, Skips: 0

五、代码整合

未完待续。。。