FRAMEWORK/SPRING

뷰에 모델(Model) 전달

적외선 2014. 11. 5. 10:28


※ @RequestMapping 어노테이션이 적용된 메소드의 파라미터나 리턴 타입으로 ModelAndView, Model, ModelMap, Map, 커맨드 객체 등을 이용해서 모델을 뷰어 전달

 

◆ @RequestMapping 메소드가 ModelAndView, Model, Map을 리턴하는 경우 이들에 담긴 모델 데이터가 뷰에 전달

  ● 추가적으로 다음의 항목도 뷰에 함께 전달

    => 커맨드 객체

    => @ModelAttribute 어노테이션이 적용된 메소드가 리턴한 객체

    => 메서드의 Map, Model, ModelMap 타입의 파라미터를 통해 설정된 모델

 



 

 

UserVO.java

package sp.mvc.vo;

 

public class UserVO {
 private String userName;
 private String address;
 private String fruit;
 
 public String getUserName() {
  return userName;
 }
 public void setUserName(String userName) {
  this.userName = userName;
 }
 public String getAddress() {
  return address;
 }
 public void setAddress(String address) {
  this.address = address;
 }
 public String getFruit() {
  return fruit;
 }
 public void setFruit(String fruit) {
  this.fruit = fruit;
 }
 
 @Override
 public String toString() {
  return "UserVO [userName=" + userName + ", address=" + address + ", fruit=" + fruit + "]";
 }
} 

 

UserController.java

package sp.mvc.controller;

import org.springframework.stereotype.Controller;
import org.springframework.ui.ExtendedModelMap;
import org.springframework.ui.Model;
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.servlet.ModelAndView;

import sp.mvc.vo.UserVO;

 

@Controller
public class UserController {

 

 @ModelAttribute("popularFruit")
 public String[] refPopularFruit(){
  return new String[]{"사과", "포도", "수박", "참외"};
 }
 
 @RequestMapping(value="/userForm.sp", method=RequestMethod.GET)
 public String userForm(){
  System.out.println("----- UserController.userForm() : GET -----");
  return "user/userForm";
 }

 
 @RequestMapping(value="/userSave.sp", method=RequestMethod.POST)
 public ModelAndView userSave(UserVO userVo, Model model){
// public ModelAndView userSave(@ModelAttribute("userVo") UserVO userVo, Model model){ 
  System.out.println("----- UserController.userSave() : POST -----");
  System.out.println("userInfo : " + userVo.toString());
  
  model.addAttribute("msg", "SUCCESS");
  
  ModelAndView modelAndView = new ModelAndView();
  modelAndView.setViewName("user/userInfo");
  modelAndView.addObject("userVo", userVo);
  
  return modelAndView;
 }
 
 @RequestMapping("/userView.sp")
 public Model userView(){
  System.out.println("----- UserController.userView() -----");
  
  Model model = new ExtendedModelMap();
  model.addAttribute("msg", "member info");
  
  return model;
 }

}

▦ Map, Model, ModelMap을 통한 모델 설정 방법

  ■ Map, Model, ModelMap 중 한 가지를 파라미터로 전달

  ■ Map, Model을 리턴

    => Map, Model은 인터페이스 이므로 인터페이스를 구현한 클래스의 객체를 생성해서 리턴

 

● @ModelAttribute("popularFruit") : @ModelAttribute 어노테이션이 적용된 메소드가 리턴한 객체

● public ModelAndView userSave(UserVO userVo, Model model) : Model 파라미터, ModelAndView 리턴 타입

● public ModelAndView userSave(@ModelAttribute("userVo") UserVO userVo, Model model) : @ModelAttribute 어노테이션, ModelAndView 리턴 타입

● public Model userView() : Model 리턴 타입

 

 

web.xml

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
 xmlns="http://java.sun.com/xml/ns/javaee" 
 xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" 
 xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" id="WebApp_ID" version="2.5">
  
  <display-name>spring303</display-name>

 <filter>
  <filter-name>characterEncodingFilter</filter-name>
  <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
  <init-param>
   <param-name>encoding</param-name>
   <param-value>UTF-8</param-value>
  </init-param>
 </filter>

 <filter-mapping>
  <filter-name>characterEncodingFilter</filter-name>
  <url-pattern>/*</url-pattern>
 </filter-mapping>


 <!-- 공통 빈 설정
 <context-param>
  <param-name>contextConfigLocation</param-name>
  <param-value>/WEB-INF/applicationContext.xml</param-value>
 </context-param>
   
 <listener>
  <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
 </listener>
 -->
 
 <servlet>
  <servlet-name>spring303</servlet-name>
  <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
  <init-param>
   <param-name>contextConfigLocation</param-name>
   <param-value>
    /WEB-INF/main_config.xml
   </param-value>
  </init-param>
  <load-on-startup>1</load-on-startup>
 </servlet>
 
 <servlet-mapping>
  <servlet-name>spring303</servlet-name>
  <url-pattern>*.sp</url-pattern>
 </servlet-mapping>

</web-app>

 

main_config.xml

<?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"/>
 
 <!-- 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>


 <!-- 각종 bean 설정 -->

 
</beans>

 

userForm.jsp

<%@ 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>회원정보 입력</title>
</head>
<body>

<form action="userSave.sp" method="post">
 <table border="1">
  <tr>
   <td>이름</td>
   <td><input type="text" name="userName" value=""/></td>
  </tr>
  <tr>
   <td>주소</td>
   <td><input type="text" name="address" value=""/></td>
  </tr>
  <tr>
   <td>과일</td>
   <td>
   <c:forEach var="fruit" items="${popularFruit}">
    ${fruit},&nbsp;
   </c:forEach> 
   </td>
  </tr>
 </table>
 
 <input type="submit" name="submit" value="전송"/>
</form>
</body>
</html>

 

userInfo.jsp

<%@ 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>회원정보 출력</title>
</head>
<body>
<h2>${msg}</h2>
<form action="userView.sp" method="post">
 <table border="1">
  <tr>
   <td>이름</td>
   <td>${userVo.userName}</td>
  </tr>
  <tr>
   <td>주소</td>
   <td>${userVo.address}</td>
  </tr>
  <tr>
   <td>과일</td>
   <td>
   <c:forEach var="fruit" items="${popularFruit}">
    ${fruit},&nbsp;
   </c:forEach>
   </td>
  </tr>
 </table>
 <input type="submit" name="submit" value="뷰"/>
</form>
</body>
</html>

 

userView.jsp

<%@ 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>회원정보 출력</title>
</head>
<body>
<h2>${msg}</h2>
<c:forEach var="fruit" items="${popularFruit}">
${fruit} &nbsp;
</c:forEach>
</body>
</html>

 

 

로그 결과

----- UserController.userView() -----
----- UserController.userSave() : POST -----
userInfo : UserVO [userName=스누피, address=제주도 456, fruit=null]
----- UserController.userView() -----

 

 



 

 


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