使用javaMail组件来发送邮件

为大家介绍javaMail组件的使用，首先是发送普通的邮件

package javamail;

import java.io.IOException;

import java.util.*;
import javax.mail.internet.*;
import javax.mail.*;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

public class JavaMailServlet extends HttpServlet {
	private static final long serialVersionUID = 1L;

	public void doGet(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {

		
		InternetAddress[] address = null;
		request.setCharacterEncoding("GBK");
		//使用qq服务器
		String mailserver = "服务器的名称";
		String From = request.getParameter("From");
		String to = request.getParameter("To");
		String Subject = request.getParameter("Subject");
		String MessageText = request.getParameter("Message");
		
		boolean sessionDebug = false;
		
		try{
			//设定Mail的服务器和传输协议
			Properties props = System.getProperties();
			props.put("mail.host",mailserver);
			props.put("mail.transport.protocol","smtp");
			props.put("mail.smtp.auth","true");//安全协议，若你不是使用免费服务器可不用
			
			
			/*
			 * 产生新的session服务
			 * 安全协议用内部类，参数表示QQ账号和密码
			 * 在普遍的免费服务器中大多数都要进行安全验证
			 */
			javax.mail.Session mailSession = javax.mail.Session.getDefaultInstance(props,new Authenticator() {
				public PasswordAuthentication getPasswordAuthentication() {
					return new PasswordAuthentication("账号","密码");
				}
			});
			
			mailSession.setDebug(sessionDebug);
			
			Message msg = new MimeMessage(mailSession);
			
			//设定传送邮件的发信人
			msg.setFrom(new InternetAddress(From));
			
			//设定传送邮件至收信人的信息
			address = InternetAddress.parse(to,false);
			msg.setRecipients(Message.RecipientType.TO,address);
			
			//设定信中的主题
			msg.setSubject(Subject);
			
			// 设定传送信的MIME Type
			msg.setText(MessageText);
			
			Transport.send(msg);
			
			System.out.println("邮件已顺利发送");
			
		}catch(Exception e){
			e.printStackTrace();
		}	
	}
}

接下来的是带有附件的邮件，在这里我将使用的是oreilly组件进行上传

public class JavaMailServlet extends HttpServlet {

	private static final long serialVersionUID = 1L;

	public void doGet(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {
		request.setCharacterEncoding("gb2312");
		InternetAddress[] address = null;
		
		MultipartRequest multi = new MultipartRequest(request,".",5*1024*1024,"gb2312");
		
		String mailserver = "服务器";
		String From = multi.getParameter("From");
		String to = multi.getParameter("To");
		String Subject = multi.getParameter("Subject");
		String type = multi.getParameter("Type");
		String messageText = multi.getParameter("Message");
		String FileName = multi.getFilesystemName("FileName");
		
		boolean sessionDebug = false;
	
		try{
			Properties props = System.getProperties();
			
			props.put("mail.host",mailserver);
			props.put("mail.transport.protocol","smtp");
			props.put("mail.smtp.auth","true");
			
			
			//产生新的session服务
			javax.mail.Session mailSession = javax.mail.Session.getDefaultInstance(props,new Authenticator() {
				public PasswordAuthentication getPasswordAuthentication() {
					return new PasswordAuthentication("账号","密码");
				}
			});	
			mailSession.setDebug(sessionDebug);
			
			Message msg = new MimeMessage(mailSession);
			
			//设定传送邮件的发信人
			msg.setFrom(new InternetAddress(From));
			
			//设定传送邮件至收信人的信息
			address = InternetAddress.parse(to,false);
			msg.setRecipients(Message.RecipientType.TO,address);
			
			//设定信中的主题
			msg.setSubject(Subject);
			
			//设定送信的时间
			msg.setSentDate(new Date());
			
			if(FileName!=null){
				File file = new File(FileName);
				//如果有附件，就将邮件内容部分存起来
				MimeBodyPart mbp1 = new MimeBodyPart();
				//设定邮件内容的类型为text/plain或text/html
				mbp1.setContent(messageText,type+";charset=gb2312");
				
				//接下来是对附件进行处理
				MimeBodyPart mbp2 = new MimeBodyPart();
				FileDataSource fds = new FileDataSource(FileName);
				mbp2.setDataHandler(new DataHandler(fds));
				mbp2.setFileName(MimeUtility.encodeText(fds.getName(),"gb2312","B"));
				
				//最后再将两者集成起来，当做一份邮件送出
				Multipart mp = new MimeMultipart();
				mp.addBodyPart(mbp1);
				mp.addBodyPart(mbp2);
				msg.setContent(mp);
			}else{
				//若没有附件，当做一份邮件送出
				msg.setContent(messageText,type+";charset=gb2312");
			}
			Transport.send(msg);
			System.out.println("邮件已顺利发送");
		}catch(Exception e){
			e.printStackTrace();
		}	
	}
}

以上是使用javaMail组件来发送，如果大家有更好的方法希望留言哦！也可以把意见发到我的邮箱上 [email protected] !本人在这里求一种通过socket的方法来发送邮件的！谢谢