我正在用mockmvc和springboot进行简单的单元测试。samplectrl.java是源代码，samplectrltest.java是测试源代码。samplectrl中注入了3个mock，除了sampleservice类之外，它们都工作得很好。如您所见，sampleservice用try-catch块 Package 。所以，我不知道如何调用mock类中的方法来获取测试源代码中的返回或抛出异常。
我删除了源代码中的try catch块，也在测试代码中给出了（）方法。效果不错。这就是为什么我认为try-catch块无疑是出错的原因。
示例Ctrl.java

@PostMapping(path = "/save", consumes = "application/json")
@ResponseBody
public ResponseEntity<Map<String, Object>> setEmp(@RequestBody 
List<EmpSaveVo> vos) {

    result.clear();
    try {
        msg = service.setEmp(vos);
    } catch (Exception e) {
        msg = e.getMessage();
    }
    result = messageTrans.getMapLang(msg);

    return messageReturn.getRestResp(result, msg);
}

samplectrltest.java文件

private MockMvc mockMvc;

@Mock
private SampleService service;

@Mock
private MessageTrans messageTrans;

@Mock
private MessageReturn messageReturn;

@InjectMocks
private SampleCtrl sampleCtrl;

@Before
public void setup() {
    MockitoAnnotations.initMocks(this);
    mockMvc = MockMvcBuilders.standaloneSetup(sampleCtrl).build();
}

@Test
public void givenEmployeeDataWhenPostEmpSave() throws Exception {
    List<EmpSaveVo> empSaveVos = new ArrayList<>();
    EmpSaveVo empSaveVo = new EmpSaveVo();
    empSaveVo.setEmployeeId(100L);
    empSaveVo.set_status((long) Status.Modified.getStatus());
    empSaveVos.add(empSaveVo);

    Gson gson = new Gson();
    String element = gson.toJson(empSaveVos);

    String msg = "Test";

    Map<String, Object> result = new HashMap<>();
    result.put("message", msg); 

    given(service.setEmp(empSaveVos)).willThrow(new Exception());
    given(messageTrans.getMapLang(msg)).willReturn(result);
    given(messageReturn.getRestResp(any(), anyString()))
    .willReturn(new ResponseEntity<Map<String, Object>>(result, HttpStatus.OK));

    mockMvc.perform(post("/api/emp/save")
            .content(element)
            .contentType(MediaType.APPLICATION_JSON)).andDo(print())
            .andExpect(status().isOk());
}

因此，我想看看这个控制台日志。

MockHttpServletResponse:
           Status = 200
    Error message = null
              Headers = [Content-Type:"application/json;charset=UTF-8"]
     Content type = application/json;charset=UTF-8
              Body = {"message":"Test"}
    Forwarded URL = null
   Redirected URL = null
          Cookies = []