send.java

这是我做的一个收发邮件的软件

package source;

import java.sql.*;
import java.util.Date;
import java.util.Properties;
import javax.swing.*;
import javax.activation.DataHandler;
import javax.activation.DataSource;
import javax.activation.FileDataSource;
import javax.mail.Message;
import javax.mail.MessagingException;
import javax.mail.Multipart;
import javax.mail.Session;
import javax.mail.Transport;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeBodyPart;
import javax.mail.internet.MimeMessage;
import javax.mail.internet.MimeMultipart;

import org.eclipse.jface.dialogs.MessageDialog;

public class Send
{
	private String username="";
	private String password="";
	private String smtp="";
	private String s_name="";
	private String s_addr="";
	public Send(String r_addr,String title,String content,String fujian)
	{
		getConfig();
		sendmail(r_addr,title,content,fujian);
	}
	private void getConfig()
	{
		try
		{
			DataBase db=new DataBase();
			db.connectToDB();
			ResultSet rs=null;
			String sql;
			sql="select top 1 * from config";
			rs=db.executeQuery(sql);
			if(!rs.next())
			{
				MessageDialog.openError(null, "发邮件错误", "读取配置失败，请检查配置！");
				System.exit(0);
			}
			username=rs.getString("username");
			password=rs.getString("password");
			smtp=rs.getString("smtp");
			s_name=rs.getString("s_name");
			s_addr=rs.getString("s_addr");
			db.close();
		}
		catch(Exception mex)
		{
			MessageDialog.openError(null, "发邮件错误", "读取配置失败，请检查配置！");
			mex.printStackTrace();
			System.exit(0);
		}
		
	}
	private boolean sendmail(String r_addr,String title,String content,String fujian)
	{
		Properties pros=new Properties();
		pros.put("mail.smtp.host",smtp);
		pros.put("mail.smtp.auth","true");
		Session sendMailSession=Session.getInstance(pros,null);//create session
		MimeMessage msg=new MimeMessage(sendMailSession);
		try
		{
			msg.setFrom(new InternetAddress(s_addr));//这是网关的地址
			InternetAddress sendaddr=new InternetAddress(s_addr);
			msg.setFrom(sendaddr);  
			
			InternetAddress toaddr=new InternetAddress(r_addr);//发送到的地址
			
			msg.setRecipient(Message.RecipientType.TO, toaddr);
			
			msg.setSubject(title+"--来自："+s_name);
			Multipart mp=new MimeMultipart();
			MimeBodyPart mbp0=new MimeBodyPart();
			mbp0.setContent(content,"text/plain;charset=gb2312");//设定邮件正文，并且设定编码方式
			mp.addBodyPart(mbp0);
			if(fujian!="")
			{
				mbp0 = new MimeBodyPart();
				DataSource source = new FileDataSource(fujian);
				mbp0.setDataHandler(new DataHandler(source));
				mbp0.setFileName(fujian);
				mp.addBodyPart(mbp0);
			}
			msg.setContent(mp);
			msg.setSentDate(new Date());
			Transport transport=sendMailSession.getTransport("smtp");
			transport.connect(null, username,password);
			transport.sendMessage(msg,msg.getAllRecipients());
			transport.close();	
			MessageDialog.openInformation(null, "系统提示", "邮件发送成功！");
			return true;
		}
		catch(MessagingException mex)
		{
			MessageDialog.openError(null, "发邮件错误", "邮件发送失败，请检查配置！");
			return false;
		}
		
	}
}