请帮我解决错误。 我想使用MockMvc测试我的Rest控制器，但在测试后我得到了上述错误。
我的GetTest成功运行，但我的POST测试丢失了错误。也许我编写POST MVC测试的方式不正确。以下是整个代码，如果需要任何其他信息，请发表评论。
@RestController
public class Controller {
@Autowired
StudentRepository studentRepository;
@RequestMapping(method= RequestMethod.POST,value="/students" ,consumes = MediaType.APPLICATION_JSON_VALUE, produces = MediaType.APPLICATION_JSON_VALUE)
public void addTopic(@RequestBody Student student){
studentRepository.addStudent(student);
}
}
单元测试类：
@RunWith(SpringRunner.class)
@WebMvcTest
public class TestingApplicationTests {
@Autowired
private MockMvc mvc;
@MockBean
private StudentRepository studentRepository;
@Test
public void firstTest() throws Exception {
Student stud = new Student("Niladri", "nila", "asda");
Student stud1 = new Student("Abhirup", "abhi", "asda");
Student stud2 = new Student("Satarupa", "sata", "asda");
List<Student> list = Arrays.asList(stud, stud1, stud2);
given(studentRepository.getAll()).willReturn(list);
mvc.perform(get("/students"))
.andExpect(status().isOk())
.andExpect(MockMvcResultMatchers.jsonPath("$", hasSize(3)));
}
@Test
public void secondTest() throws Exception {
Student student1=new Student("Niladri","Ni","seventy");
String expectedJson=this.mapToJson(student1);
mvc.perform(post("/students").contentType(MediaType.APPLICATION_JSON).accept(MediaType.APPLICATION_JSON).content(expectedJson))
.andExpect(status().isOk());
}
//Maps an object into a JSON String . Uses a JackSon ObjectMapper
private String mapToJson(Object student1) throws JsonProcessingException {
ObjectMapper objectMapper = new ObjectMapper();
return objectMapper.writeValueAsString(student1);
}
}
My First测试成功完成（即获取），但我的第二次测试（即POST）失败并出现以下错误：
以下是日志。
2018-01-19 16:10:22.640 INFO 13348 --- [ main] c.test.Testing.TestingApplicationTests : Starting TestingApplicationTests on 114983-T470p with PID 13348 (started by nchanda in C:\Users\nchanda\Downloads\Testing)
2018-01-19 16:10:22.641 INFO 13348 --- [ main] c.test.Testing.TestingApplicationTests : No active profile set, falling back to default profiles: default
2018-01-19 16:10:22.655 INFO 13348 --- [ main] o.s.w.c.s.GenericWebApplicationContext : Refreshing org.springframework.web.context.support.GenericWebApplicationContext@52719fb6: startup date [Fri Jan 19 16:10:22 IST 2018]; root of context hierarchy
2018-01-19 16:10:23.622 INFO 13348 --- [ main] s.w.s.m.m.a.RequestMappingHandlerAdapter : Looking for @ControllerAdvice: org.springframework.web.context.support.GenericWebApplicationContext@52719fb6: startup date [Fri Jan 19 16:10:22 IST 2018]; root of context hierarchy
2018-01-19 16:10:23.678 INFO 13348 --- [ main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/students]}" onto public java.util.List<com.test.Testing.Student> com.test.Testing.Controller.student()
或者可能需要添加/启用类型信息？）
at [Source: java.io.PushbackInputStream@70242f38; line: 1, column: 2]
MockHttpServletRequest:
HTTP Method = GET
Request URI = /students
Parameters = {}
Headers = {}
Handler:
Type = com.test.Testing.Controller
Method = public java.util.List<com.test.Testing.Student> com.test.Testing.Controller.student()
Async:
Async started = false
Async result = null
Resolved Exception:
Type = null
ModelAndView:
View name = null
View = null
Model = null
FlashMap:
Attributes = null
MockHttpServletResponse:
Status = 200
Error message = null
Headers = {Content-Type=[application/json;charset=UTF-8]}
Content type = application/json;charset=UTF-8
Body = [{"name":"Niladri","id":"nila","marks":"asda"},{"name":"Abhirup","id":"abhi","marks":"asda"},{"name":"Satarupa","id":"sata","marks":"asda"}]
Forwarded URL = null
Redirected URL = null
Cookies = []
MockHttpServletRequest:
HTTP Method = POST
Request URI = /students
Parameters = {}
Headers = {Content-Type=[application/json], Accept=[application/json]}
Handler:
Type = com.test.Testing.Controller
Method = public void com.test.Testing.Controller.addTopic(com.test.Testing.Student)
Async:
Async started = false
Async result = null
Resolved Exception:
Type = org.springframework.http.converter.HttpMessageNotReadableException
ModelAndView:
View name = null
View = null
Model = null
FlashMap:
Attributes = null
MockHttpServletResponse:
Status = 400
Error message = null
Headers = {}
Content type = null
Body =
Forwarded URL = null
Redirected URL = null
Cookies = []
Tests run: 2, Failures: 1, Errors: 0, Skipped: 0, Time elapsed: 1.809 sec <<< FAILURE! - in com.test.Testing.TestingApplicationTests
secondTest(com.test.Testing.TestingApplicationTests) Time elapsed: 0.037 sec <<< FAILURE!
java.lang.AssertionError: Status expected:<200> but was:<400>
Results :
Failed tests:
TestingApplicationTests.secondTest:97 Status expected:<200> but was:<400>