Struts2.3.8_Chapter02_Part01

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Struts

第一个Struts2.3.8应用

1. 增加Struts2.3.8开发必要的jar包

asm-3.3.jar

asm-commons-3.3.jar

asm-tree-3.3.jar

commons-fileupload-1.2.2.jar

commons-io-2.0.1.jar

commons-lang3-3.1.jar

freemarker-2.3.19.jar

javassist-3.11.0.GA.jar

ognl-3.0.6.jar

struts2-core-2.3.8.jar

xwork-core-2.3.8.jar

2. 在web.xml中注册Struts2.3.8核心控制器

<?xml version="1.0" encoding="UTF-8"?>
<web-app version="3.0" xmlns="http://java.sun.com/xml/ns/javaee"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xsi:schemaLocation="http://java.sun.com/xml/ns/javaee 
	http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd">

	<display-name>Struts2.3.8</display-name>

	<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>

	<welcome-file-list>
		<welcome-file>index.jsp</welcome-file>
	</welcome-file-list>
</web-app>

3. 建立视图文件

chapter02/part01/input.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>Chapter02 | Part01</title>
    </head>
    <body>
        <form id="helloForm" action="hello.action" method="post">
    	<table>
    		<tr>
    			<td>Your Name:</td>
    			<td><input type="text" name="username"></td>
    		</tr>
    		<tr>
    			<td>&nbsp;</td>
    			<td><input type="submit" value="Submit"></td>
    		</tr>
    	</table>
        </form>
    </body>
</html>

chapter02/part01/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>Chapter02 | Part01</title>
    </head>
    <body>
        Hello! ${requestScope.username}! Welcome to Struts2.3.8 ...
    </body>
</html>

4. 建立处理请求的Action

package chapter02.part01.action;

public class HelloAction {
	private String username;

	public String execute() throws Exception {
		System.out.println("Hello! " + username + "! Welcome to Struts2.3.8 ...");
		return "success";
	}

	public String getUsername() {
		return username;
	}

	public void setUsername(String username) {
		this.username = username;
	}
}

5. 在struts.xml中注册Struts2.3.8的Action

<?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="chapter02.part01" extends="struts-default">
    	<action name="hello" class="chapter02.part01.action.HelloAction">
    		<result>view.jsp</result>
    	</action>
    </package>
</struts>

6. 查看项目目录结构