<!--springboot程序测试依赖，如果是自动创建项目默认添加-->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>

import junit.framework.TestCase;

import org.junit.After;
import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.test.context.junit4.SpringRunner;


@RunWith(SpringRunner.class)  //底层用junit  SpringJUnit4ClassRunner
@SpringBootTest(classes={SpringbootstudyApplication.class})//启动整个springboot工程
public class SpringBootTestDemo {    
    
    @Test
    public void testOne(){
        System.out.println("test hello 1");
        TestCase.assertEquals(1, 1);
        
    }    
    @Test
    public void testTwo(){
        System.out.println("test hello 2");
        TestCase.assertEquals(1, 1);
        
    }        
    
    @Before
    public void testBefore(){
        System.out.println("before");
    }    
    
    @After
    public void testAfter(){
        System.out.println("after");
    }    
}

import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

@RestController
public class TestController {

    
    @RequestMapping("/vq/test")
    public  String  getTest(){
        
        return"我是测试返回值";
    }
}

import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.autoconfigure.web.servlet.AutoConfigureMockMvc;
import org.springframework.boot.test.context.SpringBootTest;
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.request.MockMvcRequestBuilders;
import org.springframework.test.web.servlet.result.MockMvcResultMatchers;

/**
 * 功能描述：测试mockmvc类
 *
 */
@RunWith(SpringRunner.class)  //底层用junit  SpringJUnit4ClassRunner
@SpringBootTest(classes={SpringbootstudyApplication.class}) //启动整个springboot工程
@AutoConfigureMockMvc 
public class MockMvcTestDemo {

    
    @Autowired
    private MockMvc mockMvc;
    
    @Test
    public void apiTest() throws Exception {
        
        MvcResult mvcResult =  mockMvc.perform( MockMvcRequestBuilders.get("/vq/test") ).
                andExpect( MockMvcResultMatchers.status().isOk() ).andReturn();
        int status = mvcResult.getResponse().getStatus();
        System.out.println(status);
        
    }
}

@RequestMapping(value = "/api/v1/test_ext")  
    public Object index() {
        int i= 1/0;
        return new User(11, "sfsfds", "1000000", new Date());
    } 

import java.util.HashMap;
import java.util.Map;

import javax.servlet.http.HttpServletRequest;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.web.bind.annotation.ExceptionHandler;
import org.springframework.web.bind.annotation.RestControllerAdvice;

//添加全局异常注解
@RestControllerAdvice
public class CustomExtHandler {

    private static final Logger LOG = LoggerFactory.getLogger(CustomExtHandler.class);
  
    //捕获全局异常,处理所有不可知的异常
    @ExceptionHandler(value=Exception.class)
    //@ResponseBody
    Object handleException(Exception e,HttpServletRequest request){
        LOG.error("url {}, msg {}",request.getRequestURL(), e.getMessage()); 
        Map<String, Object> map = new HashMap<>();
            map.put("code", 100);
            map.put("msg", e.getMessage());
            map.put("url", request.getRequestURL());
            return map;
    }    
}

/**
 * 功能描述：自定义异常类
 *
 */
public class MyException extends RuntimeException {

    private static final long serialVersionUID = 1L;
    
    public MyException(String code, String msg) {
        this.code = code;
        this.msg = msg;
    }

    private String code;
    private String msg;
    public String getCode() {
        return code;
    }
    public void setCode(String code) {
        this.code = code;
    }
    public String getMsg() {
        return msg;
    }
    public void setMsg(String msg) {
        this.msg = msg;
    }

}

     /**
     * 功能描述：模拟自定义异常
     */
    @RequestMapping("/api/v1/myext")
    public Object myexc(){
        //直接抛出异常
        throw new MyException("499", "my ext异常");    
    }