mail.java

jsp 和 javamail 邮件................................

package Mail;

import javax.mail.*;
import javax.mail.internet.*;
import java.util.*;
import javax.servlet.*;
import javax.servlet.http.*;
import java.io.*;

public class mail extends HttpServlet
{
	public void doGet(HttpServletRequest req,
                     HttpServletResponse resp)
    throws ServletException, IOException
    {
    	doPost(req,resp);
    }
    
	public void doPost(HttpServletRequest req,
                     HttpServletResponse resp)
    throws ServletException, IOException
	{
		resp.setContentType("text/html;charset=gb2312");
		req.setCharacterEncoding("gb2312");
		ServletContext context=this.getServletContext();

		String userpwd1=context.getInitParameter("userpwd");
		String username2=req.getParameter("username");
		
		PrintWriter out=resp.getWriter();
		try
		{
			//使用Properties props=System.getProperties();亦可
			Properties props=new Properties();
			//设置smtp协议，如不在此处设定，可以在mailSession.getTransport("smtp");中指出
			props.put("mail.transport.protocol","smtp");
			//设置smtp主机
			props.put("mail.smtp.host","smtp.sohu.com");
			//使用身份验证
			props.put("mail.smtp.auth","true");
			//指出smtp的使用的端口号，默认的端口就是25
			props.put("mail.smtp.port","25");
			//得到Session对象＃琒ession是抽象类，要用工厂的方法得到其实例
			Session mailSession=Session.getInstance(props);

			Message msg=new MimeMessage(mailSession);
			
			msg.setFrom(new InternetAddress("[e-mail]"));
			msg.setRecipient(Message.RecipientType.TO,new InternetAddress(req.getParameter("usermail")));
			msg.setSubject("密码找回");
			msg.setText("您的帐号："+username2+"  您的密码："+userpwd1);
			msg.setSentDate(new Date());
			//得到Transport对象，要用工厂的方法得到
			Transport trans=mailSession.getTransport();
			//以smtp方式登录邮箱 ，不登陆对于不是本地的smtp服务器不能发送Mail
			trans.connect("smtp.sohu.com","rock84320","abcdefgh");

			trans.sendMessage(msg,msg.getAllRecipients());
			
	            out.println("<table align=center>");
	            out.println("<td>");
	            out.println("邮件已成功发送到 " + req.getParameter("usermail"));
	            out.println("</p><h1 align=center><a href='index.htm'>返回首页</a></h1>");
	            out.println("</td>");
	            out.println("</table>");
			out.close();
		}
		catch(Exception e)
		{
	            System.out.println(e);
	   	        out.println("<table align=center>");
	            out.println("<td>");
	            out.println("邮件发送失败!请返回!");
	            out.println("</p><h1 align=center><a href='index.htm'>返回首页</a></h1>");
	            out.println("</td>");
	            out.println("</table>");
		}
	}
	
	public void init(ServletConfig cfg) throws ServletException
    {
      super.init(cfg);
    }

    public void destroy()
    {
      super.destroy();
    }
}