通過Tomcat的JNDI管理JavaMail的Session__Java

1。拷貝mail.jar到Tomcat\lib目錄中。
2。在WebRoot下的META-INF中添加context.xml設定檔：

<?xml version="1.0" encoding="UTF-8"?><Context>    <Resource name="mail/Session" auth="Container"            type="javax.mail.Session"            mail.smtp.host="smtp.163.com"/></Context>

3。在jsp檔案中用JNDI的API從JNDI容器尋找session對象，index.jsp檔案：

<%@page import="javax.mail.Session"%><%@page import="javax.naming.InitialContext"%><%@page import="javax.naming.Context"%><%@ page language="java" import="java.util.*" pageEncoding="ISO-8859-1"%><%String path = request.getContextPath();String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";%><!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"><html>  <head>    <base href="<%=basePath%>">    <title>My JSP 'index.jsp' starting page</title>    <meta http-equiv="pragma" content="no-cache">    <meta http-equiv="cache-control" content="no-cache">    <meta http-equiv="expires" content="0">        <meta http-equiv="keywords" content="keyword1,keyword2,keyword3">    <meta http-equiv="description" content="This is my page">    <!--    <link rel="stylesheet" type="text/css" href="styles.css">    -->  </head>  <body>    <%    Context initCtx = new InitialContext();    Context envCtx = (Context) initCtx.lookup("java:comp/env");    Session s = (Session) envCtx.lookup("mail/Session");    out.print(s.toString());     %>  </body></html>