- 요소
필터 :URL의 확장자가 action 이면 FilterDispatcher 에 의해서 액션을 실행하기 위한 환경을 구축하도록 한다 (web.xml)
/* web.xml(struts2-core-2.3.4.1.jar) */
<?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>struts2_ActionSupport</display-name>
<welcome-file-list>
<welcome-file>index.html</welcome-file>
<welcome-file>index.htm</welcome-file>
<welcome-file>index.jsp</welcome-file>
<welcome-file>default.html</welcome-file>
<welcome-file>default.htm</welcome-file>
<welcome-file>default.jsp</welcome-file>
</welcome-file-list>
<!-- Struts2 FilterDispatcher -->
<filter>
<filter-name>struts2</filter-name>
<filter-class>org.apache.struts2.dispatcher.FilterDispatcher</filter-class>
<!-- Struts2 인코딩 설정(struts-default 참조) -->
<init-param>
<param-name>struts.i18n.encoding</param-name>
<param-value>UTF-8</param-value>
</init-param>
<!-- Struts2 인코딩 설정(struts-default 참조) -->
</filter>
<filter-mapping>
<filter-name>struts2</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
</web-app>
액션 : 리절트가 필요로 하는 메시지를 제공한다 (action.java)
/* action.java */
package action;
import com.opensymphony.xwork2.ActionSupport;
/* Struts2 ActionSupport 상속 */
public class UserRegAction extends ActionSupport{
private String userId;
private String userPw;
private String userName;
/* Getter & Setter */
public String getUserId() {
return userId;
}
public void setUserId(String userId) {
this.userId = userId;
}
public String getUserPw() {
return userPw;
}
public void setUserPw(String userPw) {
this.userPw = userPw;
}
public String getUserName() {
return userName;
}
public void setUserName(String userName) {
this.userName = userName;
}
@Override
public String execute()throws Exception{
return SUCCESS;
}//end - execute Method
@Override
public void validate() {
if(userId == null || userId.equals("")) {
addFieldError("userId", "회원아이디를 입력해 주십시오");
}
if(userPw == null || userPw.equals("")) {
addFieldError("userPw", "비밀번호를 입력해 주십시오");
}
if(userName == null || userName.equals("")) {
addFieldError("userName", "이름을 입력해 주십시오");
}
}// end - validate Method()
}// end - class
매핑액션 : 실행 후 결과를 처리할 리절트와의 매피을 설정 (struts.xml)
/* struts.xml */
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE struts PUBLIC
"-//Apache Software Foundation//DTD Struts Configuration 2.3//EN"
"http://struts.apache.org/dtds/struts-2.3.dtd">
<struts>
<package name="actionSupport" namespace="" extends="struts-default">
<action name="UserRegForm">
<result>/userRegForm.jsp</result>
</action>
<action name="UserRegAction" class="action.UserRegAction">
<interceptor-ref name="params"/>
<interceptor-ref name="validation"/>
<interceptor-ref name="workflow"/>
<result name="input">/userRegForm.jsp</result>
<result name="success">/userRegSuccess.jsp</result>
</action>
</package>
</struts>
리절트 : 메시지를 출력하기 위한 화면 처리를 담당 (view.jsp)
/* view.jsp */
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%>
<!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>회원가입 결과</title>
</head>
<body>
<center>
<b><font color="red">회원 가입이 완료되었습니다.</font></b><p>
아 이 디 : ${userId}<p>
비밀번호 : ${userPw}<p>
이 름 : ${userName}<p>
</center>
</body>
</html>
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