뷰에 모델(Model) 전달

※ @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() -----