<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>原始的下载</title>
<meta name="author" content="Yeeku.H.Lee" />
<meta name="website" content="http://www.crazyit.org" />
<meta http-equiv="Content-Type" content="text/html; charset=GBK" />
<body>
<h1>原始的下载</h1>
<ul>
<li>
下载疯狂Java联盟的Logo：
<a href="/WEB-INF/images/疯狂联盟.jpg">下载图形文件</a>
</li>
<li>
下载疯狂Java联盟的Logo的压缩文件：
<a href="/WEB-INF/images/wjc_logo.zip">下载压缩文件</a>
</li>
</ul>
</body>
</html>
<?xml version="1.0" encoding="GBK"?>
<project name="struts" basedir="." default="">
<property name="dist" value="classes"/>
<property name="src" value="src"/>
<path id="classpath">
<fileset dir="lib">
<include name="*.jar"/>
</fileset>
<pathelement path="${dist}"/>
</path>
<target name="compile" description="Compile all source code">
<delete dir="${dist}"/>
<mkdir dir="${dist}"/>
<copy todir="${dist}">
<fileset dir="${src}">
<exclude name="**/*.java"/>
</fileset>
</copy>
<javac destdir="classes" debug="true" includeantruntime="yes"
deprecation="false" optimize="false" failonerror="true">
<src path="${src}"/>
<classpath refid="classpath"/>
</javac>
</target>
</project>
<?xml version="1.0" encoding="GBK"?>
<web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee
http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd" version="3.1">
<!-- 定义Struts 2的核心Filter -->
<filter>
<filter-name>struts2</filter-name>
<filter-class>org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter</filter-class>
</filter>
<!-- 让Struts 2的核心Filter拦截所有请求 -->
<filter-mapping>
<filter-name>struts2</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
</web-app>
<%--
网站: <a href="http://www.crazyit.org">疯狂Java联盟</a>
author yeeku.H.lee kongyeeku@163.com
version 1.0
Copyright (C), 2001-2016, yeeku.H.Lee
This program is protected by copyright laws.
Program Name:
Date:
--%>
<%@ page contentType="text/html; charset=GBK" language="java" errorPage="" %>
<%@ taglib prefix="s" uri="/struts-tags"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>下载前的登录页面</title>
</head>
<body>
<h3>下载前的登录页面</h3>
<span style="color:red">${requestScope.tip}</span>
<s:form action="login">
<s:textfield name="user" label="用户名"/>
<s:textfield name="pass" label="密码"/>
<s:submit value="登录"/>
</s:form>
</body>
</html>
<%--
网站: <a href="http://www.crazyit.org">疯狂Java联盟</a>
author yeeku.H.lee kongyeeku@163.com
version 1.0
Copyright (C), 2001-2016, yeeku.H.Lee
This program is protected by copyright laws.
Program Name:
Date:
--%>
<%@ page contentType="text/html; charset=GBK" language="java" errorPage="" %>
<%@ taglib prefix="s" uri="/struts-tags"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>Struts 2的文件下载</title>
</head>
<body>
<h1>Struts 2的文件下载</h1>
<ul>
<li>
下载疯狂Java联盟的Logo：
<a href="download.action">下载图形文件</a>
</li>
<li>
下载疯狂Java联盟的Logo的压缩文件：
<a href="download2.action">下载压缩文件</a>
</li>
</ul>
</body>
</html>
<?xml version="1.0" encoding="GBK"?>
<!DOCTYPE struts PUBLIC
"-//Apache Software Foundation//DTD Struts Configuration 2.3//EN"
"http://struts.apache.org/dtds/struts-2.3.dtd">
<struts>
<!-- 配置Struts 2应用的字符集 -->
<constant name="struts.i18n.encoding" value="GBK"/>
<package name="lee" extends="struts-default">
<action name="download" class="org.crazyit.app.action.FileDownloadAction">
<!-- 指定被下载资源的位置 -->
<param name="inputPath">/WEB-INF/images/疯狂联盟.jpg</param>
<!-- 配置结果类型为stream的结果 -->
<result type="stream">
<!-- 指定下载文件的文件类型 -->
<param name="contentType">image/jpg</param>
<!-- 指定由getTargetFile()方法返回被下载文件的InputStream -->
<param name="inputName">targetFile</param>
<param name="contentDisposition">filename="wjc_logo.jpg"</param>
<!-- 指定下载文件的缓冲大小 -->
<param name="bufferSize">4096</param>
</result>
</action>
<action name="download2" class="org.crazyit.app.action.AuthorityDownAction">
<!-- 定义被下载文件的物理资源 -->
<param name="inputPath">/WEB-INF/images/wjc_logo.zip</param>
<result type="stream">
<!-- 指定下载文件的文件类型 -->
<param name="contentType">application/zip</param>
<!-- 指定由getTargetFile()方法返回被下载文件的InputStream -->
<param name="inputName">targetFile</param>
<param name="contentDisposition">filename="wjc_logo.zip"</param>
<!-- 指定下载文件的缓冲大小 -->
<param name="bufferSize">4096</param>
</result>
<!-- 定义一个名为login的结果 -->
<result name="login">/WEB-INF/content/loginForm.jsp</result>
</action>
<action name="login" class="org.crazyit.app.action.LoginAction">
<result>/WEB-INF/content/struts2Down.jsp</result>
</action>
<action name="*">
<result>/WEB-INF/content/{1}.jsp</result>
</action>
</package>
</struts>
package org.crazyit.app.action;
import org.apache.struts2.ServletActionContext;
import com.opensymphony.xwork2.*;
import java.util.Map;
import java.io.InputStream;
/**
* Description:
* <br/>网站: <a href="http://www.crazyit.org">疯狂Java联盟</a>
* <br/>Copyright (C), 2001-2016, Yeeku.H.Lee
* <br/>This program is protected by copyright laws.
* <br/>Program Name:
* <br/>Date:
* @author Yeeku.H.Lee kongyeeku@163.com
* @version 1.0
*/
public class AuthorityDownAction
implements Action
{
private String inputPath;
public void setInputPath(String value)
{
inputPath = value;
}
public InputStream getTargetFile() throws Exception
{
// ServletContext提供getResourceAsStream()方法
// 返回指定文件对应的输入流
return ServletActionContext.getServletContext()
.getResourceAsStream(inputPath);
}
public String execute() throws Exception
{
// 取得ActionContext实例
ActionContext ctx = ActionContext.getContext();
// 通过ActionContext访问用户的HttpSession
Map session = ctx.getSession();
String user = (String)session.get("user");
// 判断Session里的user是否通过检查
if ( user != null && user.equals("crazyit.org"))
{
return SUCCESS;
}
ctx.put("tip", "您还没有登录，或者登录的用户名不正确，请重新登录！");
return LOGIN;
}
}
package org.crazyit.app.action;
import java.io.InputStream;
import org.apache.struts2.ServletActionContext;
import com.opensymphony.xwork2.*;
/**
* Description:
* <br/>网站: <a href="http://www.crazyit.org">疯狂Java联盟</a>
* <br/>Copyright (C), 2001-2016, Yeeku.H.Lee
* <br/>This program is protected by copyright laws.
* <br/>Program Name:
* <br/>Date:
* @author Yeeku.H.Lee kongyeeku@163.com
* @version 1.0
*/
public class FileDownloadAction
extends ActionSupport
{
// 该成员变量可以在配置文件中动态指定该值
private String inputPath;
// inputPath的setter方法
public void setInputPath(String value)
{
inputPath = value;
}
/*
定义一个返回InputStream的方法，
该方法将作为被下载文件的入口，
且需要配置stream类型结果时指定inputName参数，
inputName参数的值就是方法去掉get前缀、首字母小写的字符串
*/
public InputStream getTargetFile() throws Exception
{
// ServletContext提供getResourceAsStream()方法
// 返回指定文件对应的输入流
return ServletActionContext.getServletContext()
.getResourceAsStream(inputPath);
}
}
package org.crazyit.app.action;
import java.io.InputStream;
import org.apache.struts2.ServletActionContext;
import com.opensymphony.xwork2.Action;
import com.opensymphony.xwork2.ActionContext;
/**
* Description:
* <br/>网站: <a href="http://www.crazyit.org">疯狂Java联盟</a>
* <br/>Copyright (C), 2001-2016, Yeeku.H.Lee
* <br/>This program is protected by copyright laws.
* <br/>Program Name:
* <br/>Date:
* @author Yeeku.H.Lee kongyeeku@163.com
* @version 1.0
*/
public class LoginAction implements Action
{
private String user;
private String pass;
// user的setter和getter方法
public void setUser(String user)
{
this.user = user;
}
public String getUser()
{
return this.user;
}
// pass的setter和getter方法
public void setPass(String pass)
{
this.pass = pass;
}
public String getPass()
{
return this.pass;
}
public String execute()
{
ActionContext.getContext().getSession()
.put("user" , getUser());
return SUCCESS;
}
}