HelloWorld

完成後的結構

1. 準備工作：配置 tw.edu.kh.action 跟 te.edu.kh.model 的 package, 配置 src/main/resources 的 package folder

2. 配置 src/main/resources/struts.xml

STRUTS.XML

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

<!DOCTYPE struts PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 2.0//EN" "http://struts.apache.org/dtds/struts-2.0.dtd">

<struts>

<package name="basicStruts" extends="struts-default">

<action name="hello" class="tw.edu.kh.action.HelloWorldAction" method="execute">

<result name="success">/HelloWorld.jsp</result>

</action>

</package>

</struts>

3. 配置 tw.edu.kh.action.HelloWorldAction

Struts 2 Action classes usually extend the ActionSupport class

HELLOWORLDACTION

package tw.edu.kh.action;

import com.opensymphony.xwork2.ActionSupport;

import tw.edu.kh.model.MessageStore;

public class HelloWorldAction extends ActionSupport {

private static final long serialVersionUID = 1L;

private MessageStore messageStore;

public String execute() throws Exception {

messageStore = new MessageStore() ;

return SUCCESS;

}

public MessageStore getMessageStore() {

return messageStore;

}

public void setMessageStore(MessageStore messageStore) {

this.messageStore = messageStore;

}

}

4. 配置 tw.edu.kh.model.MessageStore

MESSAGESTORE

package tw.edu.kh.model;

public class MessageStore {

private String message;

public MessageStore() {

setMessage("Hello Struts User");

}

public String getMessage() {

return message;

}

public void setMessage(String message) {

this.message = message;

}

}

5. 配置 src/main/webapp/WEB-INF/web.xml

WEB.XML

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

<web-app version="2.4" xmlns="http://java.sun.com/xml/ns/j2ee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd">

<display-name>strutsTutorials</display-name>

<session-config>

<session-timeout>30</session-timeout>

</session-config>

<welcome-file-list>

<welcome-file>index.jsp</welcome-file>

</welcome-file-list>

<filter>

<filter-name>struts2</filter-name>

<filter-class>org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter</filter-class>

</filter>

<filter-mapping>

<filter-name>struts2</filter-name>

<url-pattern>/*</url-pattern>

</filter-mapping>

</web-app>

6. Run As Maven Build