知识点:Springboot2.0单元测试和自定义异常处理
1、@SpringBootTest单元测试
1)、引入相关依赖
<!--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>
2)、使用
@RunWith(SpringRunner.class) //底层用junit SpringJUnit4ClassRunner @SpringBootTest(classes={XdclassApplication.class})//启动整个springboot工程 public class SpringBootTests { }
3)单元测试注解
a )@Test
b)@Before 在Test前执行
c)@After 在Test后执行
2、SpringBoot测试进阶之MockMvc类的使用和模拟Http请求
1)、增加类注解 @AutoConfigureMockMvc
@SpringBootTest(classes={XdclassApplication.class})
MockMvc相当于Http客户端
2)、相关API
perform:执行一个RequestBuilder请求
andExpect:添加ResultMatcher->MockMvcResultMatchers验证规则
andReturn:最后返回相应的MvcResult->Response
3、SpringBoot2.x个性化启动banner设置和debug日志
简介:自定义应用启动的趣味性日志图标和查看调试日志
1)、启动获取更多信息 java -jar xxx.jar --debug
2)、修改启动的banner信息
a)在类路径下增加一个banner.txt,里面是启动要输出的信息
b)在applicatoin.properties增加banner文件的路径地址spring.banner.location=banner.txt
c)官网地址 https://docs.spring.io/spring-boot/docs/2.1.0.BUILD-SNAPSHOT/reference/htmlsingle/#boot-features-banners
4、SpringBoot2.x配置全局异常
讲解:服务端异常讲解和SpringBoot配置全局异常实战
1)、默认异常测试 int i = 1/0,不友好
2)、异常注解介绍
@ControllerAdvice 如果是返回json数据 则用 RestControllerAdvice,就可以不加 @ResponseBody
//捕获全局异常,处理所有不可知的异常
@ExceptionHandler(value=Exception.class)
5、SpringBoot2.x配置全局异常返回自定义页面
简介:使用SpringBoot自定义异常和错误页面跳转实战
1)、返回自定义异常界面,需要引入thymeleaf依赖
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-thymeleaf</artifactId>
</dependency>
2)、resource目录下新建templates,并新建error.html
ModelAndView modelAndView = new ModelAndView();
modelAndView.setViewName("error.html");
modelAndView.addObject("msg", e.getMessage());
return modelAndView;
https://docs.spring.io/spring-boot/docs/2.1.0.BUILD-SNAPSHOT/reference/htmlsingle/#boot-features-error-handling
1.新建测试类,引入依赖和注解,采用断言测试:
package net.aaron.demo.aaron_springboot; import org.junit.jupiter.api.Test; import org.junit.runner.RunWith; import org.springframework.boot.test.context.SpringBootTest; import org.springframework.test.context.junit4.SpringRunner; import junit.framework.TestCase; import net.aaron.demo.AaronSpringbootApplication; @RunWith(SpringRunner.class) // 底层用junit SpringJUnit4ClassRunner @SpringBootTest(classes = { AaronSpringbootApplication.class }) // 指定工程main函数入口,启动整个springboot工程 class AaronSpringbootApplicationTests { @Test public void testOne() { System.out.println("Hello World"); //断言 //TestCase.assertEquals(expected, actual); TestCase.assertEquals(1, 1); } }
2.MocMVC测试:
1)创建被测试Controller
package net.aaron.demo.controller; import java.util.Date; import java.util.HashMap; import java.util.Map; import org.springframework.web.bind.annotation.GetMapping; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RestController; import net.aaron.demo.domain.User; @RestController public class SampleController { @RequestMapping("/test/home") public String home() { return "aaron"; } @RequestMapping("/test") public Map<String,String> testMap(){ Map<String,String> map = new HashMap<>(); map.put("name", "aaron"); return map; } @GetMapping("/testjson") public Object testjson(){ return new User(111, "abc123", "10001000", new Date()); } }
2)创建MockMvc测试类,返回200即OK
package net.aaron.demo.aaron_springboot; import org.junit.jupiter.api.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.MockMvcBuilder; import org.springframework.test.web.servlet.MvcResult; import org.springframework.test.web.servlet.request.MockMvcRequestBuilders; import org.springframework.test.web.servlet.result.MockMvcResultMatchers; import org.springframework.test.web.servlet.setup.MockMvcBuilders; import net.aaron.demo.AaronSpringbootApplication; @RunWith(SpringRunner.class) @SpringBootTest(classes = { AaronSpringbootApplication.class }) @AutoConfigureMockMvc public class MockMvcTestDemo { @Autowired private MockMvc mockMvc; @Test public void apiTest() throws Exception { //perform 模拟一个request请求 //andExpect 期望值 //MockMvcResultMatchers 结果匹配系 //andReturn 返回request请求结果 MvcResult mvcResult = mockMvc.perform(MockMvcRequestBuilders.get("/test/home/")).andExpect(MockMvcResultMatchers.status().isOk()).andReturn(); //获取状态码 int status = mvcResult.getResponse().getStatus(); System.out.println(status); } }
原文地址:https://www.cnblogs.com/aaronRhythm/p/10961292.html