SendMail.java

package com.oa.email.send;

import java.util.ArrayList;
import java.util.Date;
import java.util.List;
import java.util.Properties;

import javax.activation.DataHandler;
import javax.activation.FileDataSource;
import javax.mail.Authenticator;
import javax.mail.Message;
import javax.mail.Multipart;
import javax.mail.PasswordAuthentication;
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 javax.mail.internet.MimeUtility;

import org.springframework.stereotype.Component;
@Component("sendMail")
public class SendMail {
	private String to; // 接收人
	private String from; // 发送人
	private String smtpServer; // smtp地址.
	private String userName;
	private String password;
	private String subject;
	private String content;
	private List<String> attachments = new ArrayList<String>();
	// 记录所有附件文件的集合,发送邮件的附件
	
	
	public SendMail(){
		this.from = "15518977794@163.com";
		this.smtpServer = "smtp.163.com";
		this.userName = "15518977794@163.com";
		this.password = "song5438";
	}

public SendMail(String to, String theme, String content,
			List<String> attachments) {
		this.to = to;
		this.from = "15518977794@163.com";
		this.smtpServer = "smtp.163.com";
		this.userName = "15518977794@163.com";
		this.password = "song5438";
		this.subject = theme;
		this.content = content;
		this.attachments = attachments;
	}

	// 将字符串转换为中文,否则标题会发生乱码现象,QQ邮箱为UTF-8.用GBK.GB2312都会乱码.
	public String translateChinese(String strText) {
		try {
			// MimeUtility.encodeText(String text, String charset, String
			// encoding) throws java.io.UnsupportedEncodingException
			// text 头值 . charset 字符集。如果此参数为 null，则使用平台的默认字符集。
			// encoding 要使用的编码。当前支持的值为 "B" 和 "Q"。如果此参数为 null，则在大部分字符使用 ASCII
			// 字符集编码时使用 "Q" 编码；其他情况使用 "B" 编码。
			strText = MimeUtility.encodeText(new String(strText.getBytes(),
					"gbk"), "gbk", "B");
		} catch (Exception e) {
			e.printStackTrace();
		}
		return strText;
	}

	// 增加附件
	public void addAttachment(String fname) {
		attachments.add(fname);
	}

	public boolean send() {
		// 创建邮件Session所需的Properties对象.API建议使用set而不是put(putall).
		Properties props = new Properties();
		props.setProperty("mail.smtp.host", smtpServer);
		props.setProperty("mail.smtp.auth", "true");
		props.put("mail.smtp.ssl.enable", "false");
		props.put("mail.debug", "true");
		// 创建Session对象,代表JavaMail中的一次邮件会话.
		// Authenticator==>Java mail的身份验证,如QQ邮箱是需要验证的.所以需要用户名,密码.
		// PasswordAuthentication==>系统的密码验证.内部类获取,或者干脆写个静态类也可以.
		Session session = Session.getDefaultInstance(props,
				new Authenticator() {
					public PasswordAuthentication getPasswordAuthentication() {
						return new PasswordAuthentication(userName, password);
					}
				});

		try {
			// 构造MimeMessage并设置相关属性值,MimeMessage就是实际的电子邮件对象.
			MimeMessage msg = new MimeMessage(session);
			// 设置发件人
			msg.setFrom(new InternetAddress(from));
			// 设置收件人,为数组,可输入多个地址.
			InternetAddress[] addresses = { new InternetAddress(to) };
			// Message.RecipientType==>TO(主要接收人),CC(抄送),BCC(密件抄送)
			msg.setRecipients(Message.RecipientType.TO, addresses);
			msg.setSentDate(new Date());
			// 设置邮件主题,如果不是UTF-8就要转换下.MimeUtility.encodeText(subject,"gb2312","B"));
//			 subject=translateChinese(subject);
			msg.setSubject(MimeUtility.encodeText(subject,"utf8","B"));
			// =====================正文部分===========
			// 构造Multipart容器
			Multipart mp = new MimeMultipart();
			// =====================正文文字部分===========
			// 向Multipart添加正文
			MimeBodyPart mbpContent = new MimeBodyPart();
			
			mbpContent.setContent(content,"text/plain;charset=gb2312");
			// 将BodyPart添加到MultiPart容器中
			mp.addBodyPart(mbpContent);

			// =====================正文附件部分===========
			// 向MulitPart添加附件,遍历附件列表,将所有文件添加到邮件消息里
			if (attachments != null) {
				for (String efile : attachments) {
					MimeBodyPart mbpFile = new MimeBodyPart();
					// 以文件名创建FileDataSource对象
					FileDataSource fds = new FileDataSource(efile);
					// 处理附件
					mbpFile.setDataHandler(new DataHandler(fds));
					mbpFile.setFileName(fds.getName());
					// 将BodyPart添加到Multipart容器中
					mp.addBodyPart(mbpFile);
				}
				attachments.clear();
			}
			
			// 向MimeMessage添加Multipart
			msg.setContent(mp);
			msg.setSentDate(new Date());
			// 发送邮件,使用如下方法!
			Transport.send(msg);
		} catch (Exception e) {
			e.printStackTrace();
			return false;
		}
		return true;
	}

	public String getTo() {
		return to;
	}

	public void setTo(String to) {
		this.to = to;
	}

	public String getFrom() {
		return from;
	}

	public void setFrom(String from) {
		this.from = from;
	}

	public String getSmtpServer() {
		return smtpServer;
	}

	public void setSmtpServer(String smtpServer) {
		this.smtpServer = smtpServer;
	}

	public String getUserName() {
		return userName;
	}

	public void setUserName(String userName) {
		this.userName = userName;
	}

	public String getPassword() {
		return password;
	}

	public void setPassword(String password) {
		this.password = password;
	}

	public String getSubject() {
		return subject;
	}

	public void setSubject(String subject) {
		this.subject = subject;
	}

	public String getContent() {
		return content;
	}

	public void setContent(String content) {
		this.content = content;
	}
	
		public static void main(String[] args) {
	SendMail sendMail = new SendMail("2452064683@qq.com", "來約我吧","asfa", null);
	// 增加2个附件
	// sendMail.addAttachment("");
	// sendMail.addAttachment("c://a.sql");
	if (sendMail.send()) {
		System.out.println("Successful!");
	}
}
	
}