通过spring验证器类进行验证时，jsp页面上的异常
我在使用验证器类验证spring im时遇到问题，验证正确发生但是对于int and date类型，当我在表单字段中提供不同类型的字符串时，则整个exception被粘贴我的jsp页面我想在那上面提供正确的消息格式。我想要做的更多事情我想在这个验证器类中使用正则表达式，请提供一段正则表达式的代码片段，以便我可以在这个验证器类中实现
这是我的控制器
package com.nousinfo.tutorial.controllers;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Map;
import javax.servlet.http.HttpServletRequest;
import org.springframework.beans.propertyeditors.CustomDateEditor;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.validation.BindingResult;
import org.springframework.web.bind.ServletRequestDataBinder;
import org.springframework.web.bind.annotation.ModelAttribute;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.servlet.ModelAndView;
import com.nousinfo.tutorial.model.EmployeeForm;
import com.nousinfo.tutorial.service.impl.EmployeeServiceImpl;
import com.nousinfo.tutorial.service.impl.ProjectServiceImpl;
import com.nousinfo.tutorial.service.model.EmployeeBO;
import com.nousinfo.tutorial.validator.EmployeeValidator;
/**
*
* @author ankurj
*
*/
@Controller
@RequestMapping("employee")
public class EmployeeController {
private EmployeeServiceImpl employeeServiceImpl;
private ProjectServiceImpl projectServiceImpl;
private EmployeeValidator employeeValidator;
public void setEmployeeServiceImpl(EmployeeServiceImpl employeeServiceImpl) {
this.employeeServiceImpl = employeeServiceImpl;
}
/**
* Set the view to Employee Form
*
* @param model
* is the entity mapped to form object
* @return view
* @throws Exception
*/
@RequestMapping(value = "/searchspring", method = RequestMethod.GET)
public String view(Model model) throws Exception {
EmployeeBO employeeBO = new EmployeeBO();
model.addAttribute("employeeBO", employeeBO);
return "EmployeeForm";
}
public void setEmployeeValidator(EmployeeValidator employeeValidator) {
this.employeeValidator = employeeValidator;
}
/**
* set the view to "AboutUS"
*
* @return VIEW
*/
@RequestMapping(value = "/aboutUs", method = RequestMethod.GET)
public String aboutUsView() {
return "AboutNous";
}
/**
* This method is used to insert the detail of employee or simply create new
* employee with detail
*
* @param employeeForm
* is the model entity mapped to form object
* @param bindingResult
* @param model
* @return
* @throws Exception
*/
@RequestMapping(value = "/createEmployee", method = RequestMethod.POST)
public ModelAndView createEmployee(
@ModelAttribute("employeeBO") EmployeeBO employeeBO,
BindingResult bindingResult) throws Exception {
ModelAndView model = new ModelAndView();
employeeValidator.validate(employeeBO, bindingResult);
System.out.println(bindingResult);
System.out.println(employeeBO.getEmployeeNumber());
if (bindingResult.hasErrors()) {
model.setViewName("EmployeeForm");
return model;
}
model.addObject("employeeBO", employeeBO);
if (employeeBO.getUpdateStatus() == 'A') {
boolean flag = employeeServiceImpl.actionDecider(employeeBO);
if (flag == false) {
model.setViewName("DBError");
} else
model.setViewName("Success");
}
return model;
}
}
这是我的验证员类
package com.nousinfo.tutorial.validator;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import org.springframework.validation.Errors;
import org.springframework.validation.ValidationUtils;
import org.springframework.validation.Validator;
import com.nousinfo.tutorial.service.model.EmployeeBO;
public class EmployeeValidator implements Validator {
public boolean supports(Class<?> arg0) {
return EmployeeBO.class.isAssignableFrom(arg0);
}
public void validate(Object object, Errors errors) {
boolean found = false;
Pattern pattern = Pattern.compile("[0-9]");
ValidationUtils.rejectIfEmpty(errors, "firstName",
"employeeBO.firstName");
ValidationUtils.rejectIfEmptyOrWhitespace(errors, "title",
"employeeBO.title");
ValidationUtils.rejectIfEmptyOrWhitespace(errors, "city",
"employeeBO.city");
ValidationUtils.rejectIfEmptyOrWhitespace(errors, "state",
"employeeBO.state");
EmployeeBO employeeBO = (EmployeeBO) object;
if (pattern.matcher(employeeBO.getFirstName()).find()) {
found = true;
}
if (found) {
errors.rejectValue("firstName", "employeeregex.string");
}
if (pattern.matcher(employeeBO.getLastName()).find()) {
found = true;
}
if (found) {
errors.rejectValue("lastName", "employeeregex.string");
}
if (pattern.matcher(employeeBO.getCity()).find()) {
found = true;
}
if (found) {
errors.rejectValue("city", "employeeregex.string");
}
if (pattern.matcher(employeeBO.getState()).find()) {
found = true;
}
if (found) {
errors.rejectValue("state", "employeeregex.string");
}
if (employeeBO.getEmployeeNumber() == null) {
errors.rejectValue("employeeNumber", "employeeBO.employeeNumber");
}
if (employeeBO.getPincode() == null) {
errors.rejectValue("pincode", "employeeBO.pincode");
}
if (employeeBO.getTelephoneNumber() == null) {
errors.rejectValue("telephoneNumber", "employeeBO.telephoneNumber");
}
if (employeeBO.getMobileNumber() == null)
errors.rejectValue("mobileNumber", "employeeBO.mobileNumber");
}
}
这是我提供输入的jsp
<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
pageEncoding="ISO-8859-1"%>
<%@ taglib uri="http://jakarta.apache.org/taglibs/input-1.0"
prefix="input"%>
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%>
<%@ taglib uri="http://www.springframework.org/tags" prefix="s"%>
<%@ taglib uri="http://www.springframework.org/tags/form" prefix="form"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>Create Employee</title>
<script>
function home() {
window.location.href = "/EmployeeWebSpring/search/searchspring";
}
</script>
</head>
<body background="../images/flower.jpg">
<table width="1254" height="74" border="0" align="center">
<tr>
<td width="20" height="68" align="center" bgcolor="#FFFFFF"><img
src="../images/Header.png" width="1300" height="92" /></td>
</tr>
</table>
<p>
<br />
</p>
<hr size="1" width="1254">
<h1 align="center">
<font color="FFA54F">Employee Form</font>
</h1>
<form:form id="form" method="post"
action="/EmployeeWebSpring/employee/createEmployee"
commandName="employeeBO">
<table align="center" class="table">
<tr>
<form:hidden path="updateStatus" value="A" />
</tr>
<tr>
<td>EmployeeNumber:</td>
<td><form:input path="employeeNumber" /><font color="red"><form:errors
path="employeeNumber" /></font></td>
</tr>
<tr>
<td>First_Name:</td>
<td><form:input path="firstName" /><font color="red"><form:errors
path="firstName" /></font></td>
</tr>
<tr>
<td>Last_Name:</td>
<td><form:input path="lastName" /><font color="red"><form:errors
path="lastName" /></font></td>
</tr>
<tr>
<td>Title:</td>
<td><form:input path="title" /><font color="red"><form:errors
path="title" /></font></td>
</tr>
<tr>
<td>Department_Id:</td>
<td><form:input path="departmentId" /></td>
</tr>
<tr>
<td>Address1:</td>
<td><form:input path="address1" /></td>
</tr>
<tr>
<td>Address2:</td>
<td><form:input path="address2" /></td>
</tr>
<tr>
<td>City:</td>
<td><form:input path="city" /><font color="red"><form:errors
path="city" /></font></td>
</tr>
<tr>
<td>State:</td>
<td><form:input path="state" /><font color="red"><form:errors
path="state" /></font></td>
</tr>
<tr>
<td>Pincode:</td>
<td><form:input path="pincode" /><font color="red"><form:errors
path="pincode" /></font></td>
</tr>
<tr>
<td>Telephone_Number:</td>
<td><form:input path="telephoneNumber" /><font color="red"><form:errors
path="telephoneNumber" /></font></td>
</tr>
<tr>
<td>Mobile_Number:</td>
<td><form:input path="mobileNumber" /><font color="red"><form:errors
path="mobileNumber" /></font></td>
</tr>
<tr>
<td>Date_Of_Birth:</td>
<td><form:input path="dateOfBirth" /><font color="red"><form:errors
path="dateOfBirth" /></font></td>
</tr>
<tr>
<td>Date_Of_Anniversary:</td>
<td><form:input path="dateOfAnniversary" /><font color="red"><form:errors
path="dateOfAnniversary" /></font></td>
</tr>
<tr>
<td>Date_Of_Joining:</td>
<td><form:input path="dateOfJoining" /><font color="red"><form:errors
path="dateOfJoining" /></font></td>
</tr>
<tr>
<td>Date_Of_Leaving:</td>
<td><form:input path="dateOfLeaving" /><font color="red"><form:errors
path="dateOfLeaving" /></font></td>
</tr>
<tr>
<td>Reason_For_Leaving:</td>
<td><form:input path="reasonForLeaving" /></td>
</tr>
</table>
<br>
<br />
<p> </p>
<br>
<table align="center">
<tr>
<td><input type="submit" name="method" value="Save" /></td>
<td><input type="button" value="Cancel" onclick="home()" /></td>
</tr>
</table>
<hr size="1" width="786">
<p> </p>
</form:form>
</body>
</html>
1 个答案:
答案 0 :(得分：0)
我认为问题来自于您没有初始化控制器中的转换器。
您需要添加的第一件事是控制器中的InitBinder：
@InitBinder public void initBinder(WebDataBinder binder) {
SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ssZ"); //Select the format you want
dateFormat.setLenient(false);
binder.registerCustomEditor(Date.class, new CustomDateEditor(dateFormat, false));
}
根据您的目的，您将需要不同的CustomEditor：
binder.registerCustomEditor(String.class, new StringTrimmerEditor(true)); //Trim strings
binder.registerCustomEditor(byte[].class, new ByteArrayMultipartFileEditor()); //to handle file upload
您还可以在EmployeeBO添加以下注释，具体取决于您要使用的类型：
@Temporal(TemporalType.TIMESTAMP)
@DateTimeFormat(style = "S-") //format: 'S' for short style, 'M' for medium, 'L' for long, and 'F' for full. A date or time may be ommitted by specifying a style character '-'.
private Date dateOfBirth;
@NumberFormat(style=Style.NUMBER)
private Long employeeNumberamount;
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