使用验证 api 时出错。我正在验证 register.jsp 中的输入，我已经包含了所需的 jar。验证-api-1.1.0.Final.jar hibernate-validator-5.0.1.Final.jar
注册.jsp
<h4>Register</h4>
<form:form method="post" action="register" modelAttribute="user">
<form:label path="userName">UserName</form:label>
<form:input path="userName"/>
<form:errors path="userName"/><br>
<form:label path="password">Password</form:label>
<form:password path="password"/> <br>
<input type="submit" value="Register">
</form:form>
用户.java
@Entity
@Table(name="usertable")
public class User {
@Id
@Column(name="username")
@Size(min=6,max=10,message="Error Message")
private String userName;
@Column(name="password")
private String password;
当我输入的用户名小于 6 时，result.hasErrors() 为 false ，但它应该为 true。注册控制器.java
@Controller
@RequestMapping(value="register")
public class RegisterController {
@Autowired
private RegisterService registerService;
@RequestMapping(method=RequestMethod.POST)
public ModelAndView register(@Valid User user,BindingResult result){
System.out.println("hi");
if(result.hasErrors()){
return new ModelAndView("index");
}
else{
if(registerService.register(user))
return new ModelAndView("success");
return new ModelAndView("failure");
}
}
public RegisterService getRegisterService() {
return registerService;
}
public void setRegisterService(RegisterService registerService) {
this.registerService = registerService;
}
}
注册服务.java
@Service
public class RegisterService {
@Autowired
private RegisterDao registerDao;
@Transactional
public boolean register(User user){
registerDao.register(user);
return true;
}
public RegisterDao getRegisterDao() {
return registerDao;
}
public void setRegisterDao(RegisterDao registerDao) {
this.registerDao = registerDao;
}
}
RegisterDao.java
@Repository
public class RegisterDao {
@Autowired
private SessionFactory sessionFactory;
public boolean register(User user){
this.sessionFactory.getCurrentSession().save(user);
return true;
}
public SessionFactory getSessionFactory() {
return sessionFactory;
}
public void setSessionFactory(SessionFactory sessionFactory) {
this.sessionFactory = sessionFactory;
}
}
收到此错误
SEVERE: Servlet.service() for servlet [spring] in context with path [/Annotated] threw exception [Request processing failed; nested exception is javax.validation.ConstraintViolationException: Validation failed for classes [com.labs.domain.User] during persist time for groups [javax.validation.groups.Default, ]
List of constraint violations:[
ConstraintViolationImpl{interpolatedMessage='Error Message', propertyPath=userName, rootBeanClass=class com.labs.domain.User, messageTemplate='Error Message'}
]] with root cause
javax.validation.ConstraintViolationException: Validation failed for classes [com.labs.domain.User] during persist time for groups [javax.validation.groups.Default, ]
List of constraint violations:[
ConstraintViolationImpl{interpolatedMessage='Error Message', propertyPath=userName, rootBeanClass=class com.labs.domain.User, messageTemplate='Error Message'}
]
有人能告诉我哪里出错了吗？