영혼과영혼의양식

package sp.mvc.vo;

public class LoginVO {
 private String id;
 private String password;
 
 public String getId() {
  return id;
 }
 public void setId(String id) {
  this.id = id;
 }
 public String getPassword() {
  return password;
 }
 public void setPassword(String password) {
  this.password = password;
 }
 
 @Override
 public String toString() {
  return "LoginVO [id=" + id + ", password=" + password + "]";
 }
}

package sp.mvc.validator;

import org.springframework.validation.Errors;
import org.springframework.validation.ValidationUtils;
import org.springframework.validation.Validator;

import sp.mvc.vo.LoginVO;

public class LoginValidator implements Validator {

 @Override
 public boolean supports(Class<?> cla) {
  // TODO Auto-generated method stub
  System.out.println("--- LoginValidator.supports() ---"); 
  return LoginVO.class.isAssignableFrom(cla);
 }

 @Override
 public void validate(Object target, Errors errors) {
  // TODO Auto-generated method stub
  System.out.println("--- LoginValidator.validate() ---");
  
  LoginVO loginVo = (LoginVO)target;
  
  ValidationUtils.rejectIfEmptyOrWhitespace(errors, "id", "required");
  
  if(loginVo.getPassword() == null || loginVo.getPassword().trim().isEmpty()){
   errors.rejectValue("password", "password.required");
  }
 }
}

package sp.mvc.controller;

import javax.validation.Valid;

import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.validation.BindingResult;
import org.springframework.web.bind.WebDataBinder;
import org.springframework.web.bind.annotation.InitBinder;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import sp.mvc.validator.LoginValidator;
import sp.mvc.vo.LoginVO;

@Controller
@RequestMapping(value="/login.sp")
public class LoginController {

 
 @RequestMapping(method=RequestMethod.GET)
 public String form(){
  System.out.println("---- form ----");
  return "login/loginForm";
 }
 
 @RequestMapping(method=RequestMethod.POST)
 public String submit(@Valid LoginVO loginVo, BindingResult result, Model model){
  System.out.println("login param : " + loginVo.toString());
   
  if(result.hasErrors()){
   System.out.println("---- validator count : " + result.getErrorCount() + "개");
   
   //GET
   return "redirect:/login.sp";
  }
  
  model.addAttribute("loginVo", loginVo);
  return "login/loginInfo";
 }
 
 @InitBinder
 protected void initBinder(WebDataBinder binder){
  binder.setValidator(new LoginValidator());
 }
}

<?xml version="1.0" encoding="UTF-8"?>

<beans xmlns="http://www.springframework.org/schema/beans"
 xmlns:context="http://www.springframework.org/schema/context"
 xmlns:p="http://www.springframework.org/schema/p"
 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 xsi:schemaLocation="http://www.springframework.org/schema/beans
       http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
       http://www.springframework.org/schema/context
       http://www.springframework.org/schema/context/spring-context-3.0.xsd">

 <context:annotation-config/>
 <context:component-scan base-package="sp.mvc.controller"/>

 <!-- bean class="org.springframework.web.servlet.mvc.annotation.DefaultAnnotationHandlerMapping" p:alwaysUseFullPath="true"/ -->
 <!-- bean class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter" p:alwaysUseFullPath="true"/ --> 
   
 <!-- ViewResolver 설정 -->
 <bean id="internalResource" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
  <property name="prefix" value="jsp/"></property>
  <property name="suffix" value=".jsp"></property>
 </bean>

 <bean id="messageSource" class="org.springframework.context.support.ResourceBundleMessageSource">
  <property name="basenames">
   <list>
    <value>loginValidMsg.properties</value>
   </list>
  </property>
 </bean>

 <!-- 각종 bean 설정 -->

 
</beans>

<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<%@ taglib prefix="spring" uri="http://www.springframework.org/tags" %>
<%@ taglib prefix="form" uri="http://www.springframework.org/tags/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=UTF-8">
<title>로그인</title>
</head>
<body>
<form action="login.sp" method="post">
 <table border="1">
  <tr>
   <td>ID</td>
   <td><input type="text" name="id" value=""/></td>
  </tr>
  <tr>
   <td>PW</td>
   <td><input type="password" name="password" value=""/></td>
  </tr>
 </table> 
 <input type="submit" name="submit" value="전송"/>
</form>
</body>
</html>

<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %> 
<!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=UTF-8">
<title>로그인</title>
</head>
<body>
 ${loginVo.id}님 반갑습니다.
</body>
</html>

요청 URL

   http://localhost:8090/spring303/login.sp

---- form ----
--- LoginValidator.supports() ---
--- LoginValidator.validate() ---
login param : LoginVO [id=스누피123, password=123aaa]
--- LoginValidator.supports() ---