如果是代码“ typeMismatch”，则对象名称为“ user”，字段为“ age”
因此，您应该得到（我想您的commandName被称为 command，@H_301_16@ 并且您的属性是 age@H_301_16@ ）根据您的代码进行调整
typeMismatch.command.age
typeMismatch.age
typeMismatch.java.lang.Integer
typeMismatch
注意第三条代码
typeMismatch.java.lang.Integer
它将解决您想要的
我创建了一个Person命令类
public class Person implements Serializable {
private Integer age;
public Integer getAge() {
return age;
}
public void setAge(Integer age) {
this.age = age;
}
}
和一个人控制器
public class PersonController extends SimpleFormController {
public PersonController() {
setCommandClass(Person.class);
setValidator(new Validator() {
public boolean supports(Class clazz) {
return clazz.isAssignableFrom(Person.class);
}
public void validate(Object command, Errors errors) {
rejectIfEmpty(errors, "age", "Age is required");
}
});
}
@Override
protected ModelAndView onSubmit(Object command) throws Exception {
return new ModelAndView();
}
}
这是我的myMessages.properties（类路径的根）
typeMismatch.command.age=typeMismatch.command.age
typeMismatch.age=typeMismatch.age
typeMismatch.java.lang.Integer=typeMismatch.java.lang.Integer
typeMismatch=typeMismatch
所以，我做了以下测试
public class PersonControllerTest {
private PersonController personController;
private MockHttpServletRequest request;
private MessageSource messageSource;
@Before
public void setUp() {
request = new MockHttpServletRequest();
request.setMethod("POST");
personController = new PersonController();
messageSource = new ResourceBundleMessageSource();
((ResourceBundleMessageSource) messageSource).setBasename("myMessages");
}
@Test
public void failureSubmission() throws Exception {
/**
* Ops... a bindException
*
* Age can not be a plain String, It must be a plain Integer
*/
request.addParameter("age", "not a meaningful age");
ModelAndView mav = personController.handleRequest(request, new MockHttpServletResponse());
BindingResult bindException = (BindingResult) mav.getModel().get(BindingResult.MODEL_KEY_PREFIX + "command");
for (Object object : bindException.getAllErrors()) {
if(object instanceof FieldError) {
FieldError fieldError = (FieldError) object;
assertEquals(fieldError.getField(), "age");
/**
* outputs typeMismatch.command.age
*/
System.out.println(messageSource.getMessage((FieldError) object, null));
}
}
}
}
如果要第二个，则 typeMismatch.command.age密钥资源包
typeMismatch.age=typeMismatch.age
typeMismatch.java.lang.Integer=typeMismatch.java.lang.Integer
typeMismatch=typeMismatch
或编写您自己的MessageCodesResolver实现
public class MyCustomMessageCodesResolver implements MessageCodesResolver {
private DefaultMessageCodesResolver defaultMessageCodesResolver = new DefaultMessageCodesResolver();
public String [] resolveMessageCodes(String errorCode, String objectName) {
if(errorCode.equals("age"))
/**
* Set up your custom message right here
*/
return new String[] {"typeMismatch.age"};
return defaultMessageCodesResolver.resolveMessageCodes(String errorCode, String objectName);
}
public void String[] resolveMessageCodes(String errorCode, String objectName, String field, Class fieldType) {
if(errorCode.equals("age"))
/**
* Set up your custom message right here
*/
return new String[] {"typeMismatch.age"};
return defaultMessageCodesResolver.resolveMessageCodes(String errorCode, String objectName, String field, Class fieldType);
}
}
并设置您的PersonController
public class PersonController extends SimpleFormController {
public PersonController() {
setMessageCodesResolver(new MyCustomMessageCodesResolver());
setCommandClass(Person.class);
setValidator(new Validator() {
public boolean supports(Class clazz) {
return clazz.isAssignableFrom(Person.class);
}
public void validate(Object command, Errors errors) {
rejectIfEmpty(errors, "age", "Age is required");
}
});
}
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