java 发送邮件

以一个web项目为例，代码是可以移植的

首先要导入mail.jar包，然后创建自己的类

1：HTMLSender类

package com.txq.mail;

import java.util.Properties;

import javax.mail.Message;
import javax.mail.MessagingException;
import javax.mail.NoSuchProviderException;
import javax.mail.Session;
import javax.mail.Transport;
import javax.mail.internet.AddressException;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeMessage;
import javax.mail.internet.MimeMultipart;
import javax.mail.internet.MimeUtility;

/**
 * 
 * @author Administrator
 *
 */
public class HTMLSender {
    private MimeMessage message;
    private Properties props;
    private Session session;
    private String name = "";
    private String password = "";
    
    public HTMLSender(String host,String name,String password)
    {
        this.name = name;
        this.password = password;
        props = System.getProperties();
        
        props.put("mail.smtp.host", host);
        props.put("mail.smtp.auth","true");
        MyAuthenticator auth = new MyAuthenticator(name,password);
        session = Session.getDefaultInstance(props,auth);
        
        message = new MimeMessage(session);
        new MimeMultipart();
    }
    
    public void setFrom(String from)
    {
        try 
        {
            message.setFrom(new InternetAddress(from));
        } 
        catch (AddressException e)
        {
            e.printStackTrace();
        } 
        catch (MessagingException e)
        {
            e.printStackTrace();
        }
    }
    
    public void setTo(String to)
    {
        try
        {
            message.setRecipients(Message.RecipientType.TO,InternetAddress.parse(to));
        }
        catch(AddressException e)
        {
            e.printStackTrace();
        }
        catch(MessagingException e)
        {
            e.printStackTrace();
        }
    }
    
    public void setSubject(String subject)
    {
        try
        {
            message.setSubject(subject);
        }
        catch(Exception e)
        {
            e.printStackTrace();
        }
    }
    
    public void setContect(String content)
    {
        try
        {
            message.setContent(content,"text/html;charset=utf-8");
        }
        catch(Exception e)
        {
            e.printStackTrace();
        }
    }
    
    public boolean send()
    {
        try
        {
            Transport transport = session.getTransport("smtp");
            transport.connect((String)props.get("mail.smtp.host"),name,password);
            transport.sendMessage(message, message.getRecipients(Message.RecipientType.TO));
            transport.close();
            return true;
        }
        catch(NoSuchProviderException e)
        {
            e.printStackTrace();
            return false;
        }
        catch(MessagingException e)
        {
            e.printStackTrace();
            return false;
        }
    }
}

2：MyAuthenticator类

package com.txq.mail;

import javax.mail.Authenticator;
import javax.mail.PasswordAuthentication;


public class MyAuthenticator extends Authenticator{
    String name;
    String password;
    public MyAuthenticator(String name,String pasword)
    {
        this.name = name;
        this.password = pasword;
        getPasswordAuthentication();
    }
    protected PasswordAuthentication getPasswordAuthentication()
    {
        return new PasswordAuthentication(name,password);
    }
}

3：MailAction类，前两个类只要完整的移至到你的项目中就可以（要把第一行对应的包名改一下），下边这个类，只要把带注释的内容修改为自己需要的就可以了；

package com.txq.action;

import java.io.PrintWriter;

import com.opensymphony.xwork2.ActionSupport;
import com.txq.mail.HTMLSender;

public class MailAction extends ActionSupport {
    private String email;
    public String sendEmail(){
        //代理主机-新浪
        String host = "smtp.sina.cn";
        //帐号-新浪帐号
        String name = "qqsinabaidu";
        //密码-新浪密码
        String password = "baidu360";
        //创建发送邮件对象
        HTMLSender mail = new HTMLSender(host,name,password);
        //发邮帐号
        mail.setFrom("qqsinabaidu@sina.cn");
        //收邮帐号
        mail.setTo("youxiangzhanghe@qq.com");
        //邮件主题
        mail.setSubject("哈哈");
        //邮件内容
        mail.setContect("发送邮件的程序~");
        
        if(mail.send())
        {
            return SUCCESS;
        }
        else
        {
            return "error";
        }
    }
    public String getEmail() {
        return email;
    }
    public void setEmail(String email) {
        this.email = email;
    }
}