Spring项目Junit测试

Spring项目Junit测试

1.引入测试所需的依赖

<dependency>
    <groupId>junit</groupId>
    <artifactId>junit</artifactId>
    <version>4.12</version>
</dependency>
<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-test</artifactId>
    <version>2.2.2.RELEASE</version>
</dependency>

2.测试Controller、Service方法

测试类上添加注解

@RunWith(SpringRunner.class) 
@SpringBootTest 

测试方法上添加注解

@Test

示例

测试包下的测试类

package com.guigu.test;

import org.junit.jupiter.api.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.mock.web.MockHttpServletResponse;
import org.springframework.test.context.junit4.SpringRunner;
import org.springframework.test.web.servlet.MockMvc;
import org.springframework.test.web.servlet.MvcResult;
import org.springframework.test.web.servlet.RequestBuilder;
import org.springframework.test.web.servlet.request.MockMvcRequestBuilders;
import org.springframework.test.web.servlet.setup.MockMvcBuilders;

@RunWith(SpringRunner.class)
@SpringBootTest
class TestApplicationTests {
    @Autowired
    ShowController showController;

    private MockMvc mockMvc; // 专门模拟浏览器发出各种请求

    @Test
    public void update() throws Exception{
        mockMvc = MockMvcBuilders.standaloneSetup(showController).build();
        RequestBuilder getRequest = MockMvcRequestBuilders.post("/aaa/bbb/ccc")
                .param("a","a");
        //获取结果和返回值
        MvcResult result = mockMvc.perform(getRequest).andReturn();
        MockHttpServletResponse response =  result.getResponse();
        //输出响应结果
        System.out.println("响应结果："+response.getContentAsString());
        System.out.println("状态码："+response.getStatus());
    }
}

被测试的Controller

package com.guigu.test;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;

/**
 * @Description TODO
 * @Author 
 * @Date 2022/4/20
 * @Version 1.0
 */
@Controller
@RequestMapping("/aaa")
public class ShowController {
    @Autowired
    private ShowService showService;

    @RequestMapping("/bbb/ccc")
    public String test(@RequestParam String a) {
        System.out.println("ShowController"+a);
        return showService.show();
    }
}

被测试的Service

package com.guigu.test;

import org.springframework.stereotype.Service;

/**
 * @Description TODO
 * @Author 
 * @Date 2022/4/20
 * @Version 1.0
 */
@Service
public class ShowService {
    public String  show(){
        System.out.println("xxx");
        return "x";
    }
}