我有User类，因此我使用Spring的Validator接口创建了UserValidator.java，以便在注册时验证User。
问题是验证已成功应用，但是jsp页面未显示错误消息。
UserValidator.java
@Component
public class UserValidator implements Validator {
public boolean supports(Class<?> clazz) {
return User.class.equals(clazz);
}
public void validate(Object obj, Errors errors) {
ValidationUtils.rejectIfEmpty(errors, "userName", "Enter a valid name");
ValidationUtils.rejectIfEmpty(errors, "address", " Enter Address");
ValidationUtils.rejectIfEmpty(errors, "mobNo", "Enter valid mobile number");
ValidationUtils.rejectIfEmpty(errors, "emailId", "Enter a valid email");
User user = (User) obj;
System.out.println(""+user.getUserName());
Pattern pattern = Pattern.compile("^[A-Z0-9._%+-]+@[A-Z0-9.-]+\\.[A-Z]{2,6}$",
Pattern.CASE_INSENSITIVE);
if (!(pattern.matcher(user.getEmailId()).matches())) {
errors.rejectValue("emailId", "Invalid email! Please enter valid email");
}
}}
RegistrationController.java
@Controller
public class RegistrationController {
@Autowired
UserValidator userValidator;
@InitBinder
public void initBinder(WebDataBinder webDataBinder){
webDataBinder.setValidator(userValidator);
}
@Autowired
private DepartmentDao departmentDao;
@Autowired
private DesignationDao designationDao;
@Autowired
private ConfigDao configDao;
@Autowired
private HintQuestionDao hintQuestionDao;
@Autowired
private GroupDao groupDao;
@Autowired
private UserDao userDao;
@RequestMapping("Register")
public String getRegisterPage(@ModelAttribute("user") User user, Model model) {
model.addAttribute("departmentList", departmentDao.getDepartments());
model.addAttribute("designationList", designationDao.getDesignation());
model.addAttribute("levelList", configDao.getLevel());
model.addAttribute("questionList",hintQuestionDao.getQuestions());
model.addAttribute("groupList", groupDao.getGroup());
return "Registration";
}
@RequestMapping("newRegisterUser")
public String createUser(@ModelAttribute("user") User user, Model model,@RequestParam("deptId") int deptid,
@RequestParam("desgId") int desgId,@RequestParam("grpId")int grpId,HttpSession session, BindingResult bindingResult) throws Exception{
User userSess= (User) session.getAttribute("userObj");
if(userSess!=null) {
userValidator.validate(user, bindingResult);
if (bindingResult.hasErrors()) {
return "redirect:Register";
}
user.setMobNo(user.getMobNo());
user.setDepartment(departmentDao.getDepartmentById(deptid));
user.setDesignation(designationDao.getDesignationById(desgId));
user.setGroup(groupDao.getGroupById(grpId));
user.setUpw1(user.getUserName().replace(" " , "").substring(0,4)+user.getEmailId().substring(0,2)+"#"+user.getMobNo().toString().substring(8));
user.setCreatedBy(userSess.getUserName());
user.setCreationDate(new Timestamp(System.currentTimeMillis()));
user.setLoginStatus("A");
userDao.createUser(user);
}
else {
model.addAttribute("AddMessage","Login First");
}
return "redirect:ListOfUser";
}}
Registration.jsp
<form:form class="form" modelAttribute="user" method="post" action="newRegisterUser">
<div class="form-group row">
<label class="col-lg-3 col-form-label form-control-label">Name:</label>
<div class="col-lg-9">
<form:input class="form-control" type="text" path="userName"/>
<form:errors path = "userName" cssClass = "error" />
</div>
</div>
<div class="form-group row">
<label class="col-lg-3 col-form-label form-control-label">Address:</label>
<div class="col-lg-9">
<form:textarea class="form-control" rows="2" path="address"></form:textarea>
<form:errors path = "address" cssClass = "error" />
</div>
</div>
<div class="form-group row">
<label class="col-lg-3 col-form-label form-control-label">Mobile:</label>
<div class="col-lg-3">
<form:input class="form-control" type="text" path="mobNo"/>
</div>
<label class="col-lg-2 col-form-label form-control-label">Email:</label>
<div class="col-lg-4">
<form:input class="form-control" type="email" path="emailId"/>
<form:errors path = "emailId" cssClass = "error" />
</div>
</div>
<div class="form-group row">
<label class="col-lg-3 col-form-label form-control-label">Department:</label>
<div class="col-lg-3">
<select name="deptId" id="dept_Id" class="form-control" size="0">
<option value="0">--Select--</option>
<c:forEach var="depts" items="${departmentList}">
<option value="<c:out value="${depts.deptid}" />">${depts.deptnm}</option>
</c:forEach>
</select>
</div>
<label class="col-lg-2 col-form-label form-control-label">Designation:</label>
<div class="col-lg-4">
<select name="desgId" id="design_Id" class="form-control" size="0">
<option value="0">--Select--</option>
<c:forEach var="desig" items="${designationList}">
<option value="<c:out value="${desig.desgid}" />">${desig.desgnm}</option>
</c:forEach>
</select>
</div>
</div>
<div class="form-group row">
<label class="col-lg-3 col-form-label form-control-label">Level:</label>
<div class="col-lg-3">
<select name="userLevel" id="lvl_Id" class="form-control" size="0">
<option value="-1">--Select--</option>
<c:forEach var="levelList" items="${levelList}">
<option value="<c:out value="${levelList.sk}"/>">${levelList.ds}</option>
</c:forEach>
</select>
</div>
<label class="col-lg-2 col-form-label form-control-label">Group:</label>
<div class="col-lg-4">
<select name="grpId" id="grp_Id" class="form-control" size="0">
<option value="-1">--Select--</option>
<c:forEach var="groupList" items="${groupList}">
<option value="<c:out value="${groupList.grpid}" />">${groupList.grpnm}</option>
</c:forEach>
</select>
</div>
</div>
<div class="form-group row">
<label class="col-lg-3 col-form-label form-control-label">Hint Question:</label>
<div class="col-lg-3">
<select name="hintId" id="que_Id" class="form-control" size="0">
<option value="0">--Select--</option>
<c:forEach var="questionList" items="${questionList}">
<option value="<c:out value="${questionList.hintid}" />">${questionList.hintquestion}</option>
</c:forEach>
</select>
</div>
<label class="col-lg-2 col-form-label form-control-label">Answer:</label>
<div class="col-lg-4">
<form:input class="form-control" type="text" path="hintAns"/>
</div>
</div>
<div class="form-group row">
<label class="col-lg-5 col-form-label form-control-label"></label>
<div class="col-lg-7">
<input type="submit" class="btn btn-info" value="Register">
<input type="reset" class="btn btn-primary" value="Cancel">
</div>
</div>
</form:form>
有人可以帮我吗？
我在这方面做错了什么？
谢谢。