手动搭建HTTP下载站点

index.jsp

<%--Listfile.jsp--%>
<%@ page import="java.io.File,java.text.SimpleDateFormat,java.util.Calendar"%>
<%@ page contentType="text/html;charset=GB2312" language="java" %>
<html>
<head>
<title>index</title>
<style type="text/css">
body {
    font-size: 9pt;
    background-color: #F0F0F0;
}
TABLE {
    background-color: #CCCCCC;
    font-size: 9pt;
}
TR {
    color: black;
    height: 22px;
    background-color: white
}
TR.header {
    color: #996600;
    height: 22px;
    background-color: #EBEBEB;
    cursor: hand
}
</style>
</head>
<body>
<%!
    public void travelDirectory(String directory, JspWriter out) {
        try {
            File dir = new File(directory);
            if (dir.isFile()) // 判断是否是文件，如果是文件则返回。
                return;
            File[] files = dir.listFiles(); // 列出当前目录下的所有文件和目录
            for (int i = 0; i < files.length; i++) {
                if (files[i].isDirectory()) {
                    continue;
                } // 如果是目录，则继续遍历该目录
                // travelDirectory(files[i].getAbsolutePath(),out);
                if(files[i].getName().equals("index.jsp")){
                    continue;
                }
                String fn = files[i].getName();
                String fs = files[i].length()/(1024 * 1024) + "M";
                Calendar cal = Calendar.getInstance();
                long time = files[i].lastModified();
                SimpleDateFormat formatter = new SimpleDateFormat(
                        "yyyy-MM-dd HH:mm:ss");
                cal.setTimeInMillis(time);
                String ft = formatter.format(cal.getTime());
                String tr = "<tr><td><a href='" + fn + "' target='_blank'>" + fn + "</a></td>";
                tr += "<td>" + fs + "</td>";
                tr += "<td>" + ft + "</td></tr>";
                out.println(tr); // 输出该目录或者文件的名字
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
%>
<%
    //将当前web程序目录结构输出到控制台
    String path=pageContext.getServletContext().getRealPath(request.getServletPath());
    String dir=new File(path).getParent(); 
    out.println("<div align='center'>软件下载界面，点击文件名称下载</div><table align='center'>");
    out.println("<tr class='header'><td>文件名称</td><td>大小(M)</td><td>修改时间</td></tr>");
    travelDirectory(dir,out);
    out.println("</table>");
%>
</body>
</html>

web.xml

<?xml version="1.0" encoding="ISO-8859-1"?>
<!DOCTYPE web-app
    PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
    "http://java.sun.com/dtd/web-app_2_3.dtd">
<web-app>
    <display-name>Welcome to download</display-name>
    <description>
        Welcome to download
    </description>
    <mime-mapping>
        <extension>zip</extension>
        <mime-type>application/zip</mime-type>
    </mime-mapping>
    <mime-mapping>
        <extension>rar</extension>
        <mime-type>application/rar</mime-type>
    </mime-mapping>
    <mime-mapping>
        <extension>exe</extension>
        <mime-type>application/octet-stream</mime-type>
    </mime-mapping>
    <mime-mapping>
        <extension>iso</extension>
        <mime-type>application/octet-stream</mime-type>
    </mime-mapping>
    <mime-mapping>
        <extension>docx</extension>
        <mime-type>application/doc</mime-type>
    </mime-mapping>
    <mime-mapping>
        <extension>doc</extension>
        <mime-type>application/doc</mime-type>
    </mime-mapping>
</web-app>