[英]ModelAttribute in form not able to bind with object (Spring MVC)
[英]Spring MVC: How to bind to nested object properties in the @ModelAttribute
我要根據以下代碼部分進行單元測試:
@RequestMapping(value = "/changePass", method = RequestMethod.POST)
public ModelAndView changePass(@ModelAttribute(TAPPLICATION) AppBean applicationBean, BindingResult result, ModelMap model, Principal principal, HttpServletRequest request) throws NSException, SQLException {
// ...
if (applicationBean != null
&& applicationBean.getChangePassDto() != null
&& StringUtils.isNotEmpty(applicationBean.getChangePassDto().getNewPassword())) {
String newPassword = applicationBean.getChangePassDto().getNewPassword();
// ...
}
// ...
AppBean包含以下getter和setter:
private ChangePassDto changePassDto;
public ChangePassDto getChangePassDto() {
return changePassDto;
}
public void setChangePassDto(ChangePasswordDto changePassDto) {
this.changePassDto = changePassDto;
}
基本上,當我執行單元測試時,方法applicationBean.getChangePassDto()
為null
但applicationBean
不為null。 如何初始化applicationBean.getChangePassDto()
使其不返回null
? 我已經使用.param
方法初始化了其他非對象參數,正如在單元測試中可以看到的那樣。
我還將Powermock用作單元測試框架。
請在我的單元測試中找到以下部分:
@Before
public void setup() {
request = new MockHttpServletRequest();
request.setAttribute(DispatcherServlet.OUTPUT_FLASH_MAP_ATTRIBUTE, new FlashMap());
response = new MockHttpServletResponse();
session = new MockHttpSession();
request.setSession(session);
RequestContextHolder.setRequestAttributes(new ServletRequestAttributes(request));
//Added viewResolver to prevent circular view path error
InternalResourceViewResolver viewResolver = new InternalResourceViewResolver();
viewResolver.setPrefix("/WEB-INF/jsp/");
viewResolver.setSuffix(".jsp");
this.mockMvc = MockMvcBuilders.standaloneSetup(appController).setViewResolvers(viewResolver).build();
}
@Test
public void changePass_ExpectC() throws Exception {
PowerMockito.doNothing().when(passwordVal).validate(any(User.class), anyListOf(Params.class), any(Object.class),any(Errors.class));
mockMvc.perform(post("/changePass").param("userLogName", "JOHN").param("userLogged", "userLogged").param("password", "password123").param("newPassword", "newPassword123").param("confirmNewPassword", "newPassword123"))
.andExpect(view().name(Constants.DENIED))
.andExpect(status().isOk()
);
}
知道如何初始化applicationBean.getchangePassDto()
使其不為null嗎?
在此先感謝您的幫助。
只需在您的AppBean
創建一個ChangePassDto
的新實例:
public class AppBean {
private ChangePassDto changePassDto = new ChangePassDto();
public ChangePassDto getChangePassDto() {
return changePassDto;
}
public void setChangePassDto(ChangePasswordDto changePassDto) {
this.changePassDto = changePassDto;
}
// ...
}
然后,您需要使用嵌套DTO中屬性的完整路徑,如下所示:
mockMvc.perform(post("/changePass")
.param("changePassDto.userLogName", "JOHN")
.param("changePassDto.userLogged", "userLogged")
.param("changePassDto.password", "password123")
.param("changePassDto.newPassword", "newPassword123")
.param("changePassDto.confirmNewPassword", "newPassword123"))
.andExpect(view().name(Constants.DENIED))
.andExpect(status().isOk());
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