用J2ME实现简单电子邮件发送功能

package com.j2medev.servletmail;
import java.io.DataInputStream;

import java.io.IOException;

import java.util.Properties;
import javax.servlet.ServletConfig;

import javax.servlet.ServletException;

import javax.servlet.http.HttpServlet;

import javax.servlet.http.HttpServletRequest;

import javax.servlet.http.HttpServletResponse;

import javax.mail.*;

import javax.mail.internet.InternetAddress;

import javax.mail.internet.MimeMessage;

import java.util.*;

import java.net.*;
public class MailServlet extends HttpServlet

{

private static String host;
private static String from;
public void init(ServletConfig config) throws ServletException

{

super.init(config);

host = config.getInitParameter("host");

from = config.getInitParameter("from");

System.out.println(host + from);

}
protected void doGet(HttpServletRequest request,

HttpServletResponse response) throws ServletException, IOException

{
doPost(request, response);

}
protected void doPost(HttpServletRequest request,

HttpServletResponse response) throws ServletException, IOException

{



DataInputStream dis = new DataInputStream(request.getInputStream());

String send = dis.readUTF();

String subject = dis.readUTF();

String content = dis.readUTF();

try

{

Properties props = System.getProperties();

// Setup mail server

props.put("mail.smtp.host", host);

// Get session

Session session = Session.getDefaultInstance(props, null);

// Define message

MimeMessage message = new MimeMessage(session);

// Set the from address

message.setFrom(new InternetAddress(from));

// Set the to address

message.addRecipient(Message.RecipientType.TO, new InternetAddress(

send));

// Set the subject

message.setSubject(subject);

// Set the content

message.setText(content);

// Send message

Transport.send(message);

} catch (Exception e)

{

e.printStackTrace();

}

}

}
web.xml

<?xml version="1.0" ?>

<!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>

<servlet>

<servlet-name>ServletMail</servlet-name>

<servlet-class>com.j2medev.servletmail.MailServlet</servlet-class>

<init-param>

<param-name>host</param-name>

<param-value>smtp.263.net</param-value>

</init-param>

<init-param>

 <param-name>from</param-name>

 <param-value>eric.zhan@263.net</param-value>

</init-param>

</servlet>



<servlet-mapping>

<servlet-name>ServletMail</servlet-name>

<url-pattern>/maildo</url-pattern>

</servlet-mapping>

<welcome-file-list>

<welcome-file>index.jsp</welcome-file>

</welcome-file-list>
<error-page>

<error-code>404</error-code>

<location>/error.jsp</location>

</error-page>
</web-app>