springboot的单元测试

application.java

@SpringBootApplication
public class Application {

	public static void main(String[] args) {
		SpringApplication.run(Application.class, args);
	}
}

HelloController.java

@RestController
public class HelloController {
	@RequestMapping("/hello")
	public String hello(){
		return "Hello world!";
	}
}

test工程

HelloControllerTest.java

@RunWith(SpringRunner.class)
@SpringBootTest
@AutoConfigureMockMvc
public class HelloControllerTest {
	@Autowired
	private MockMvc mockMvc;
	
	@Test
	public void testHello() throws Exception{
		mockMvc.perform(MockMvcRequestBuilders.get("/hello")
				.accept(MediaType.APPLICATION_JSON))
		.andExpect(status().isOk())
		.andExpect(content().string(equalTo("Hello world!")));
	}
}

以上. 

注.spring测试, 会去找有没有SpringBootconfiguration. 如果没有声明@SpringBootApplication

那么测试就不会成功.