java email 发送

邮件服务是一般系统的基本功能，本例使用163免费邮箱发送

1.邮件信息类（MailSenderInfo ）

package sendEmail.email;

import java.util.Properties;

/**
 * 邮件信息设置
 * @author Administrator
 *
 */
public class MailSenderInfo {

	private String mailServerHost ; //发送邮件主机
	private String mailServerPort ; //发送端口

	private String fromAddress ; //邮件发送者的地址（邮箱）
	private String toAddress ; //接收者的地址（邮箱）

	//登录邮件发送服务器的用户名和密码
	private String userName ;
	private String passwrod ;

	//是否需要身份验证
	private boolean validate = false ;

	//邮件主题
	private String subject ;

	//邮件内容
	private String content ;

	//邮件附件
	private String[] attachFileNames ;

	/*
	 * 获取邮件会话属性
	 */
	public Properties getProperties(){
		Properties p = new Properties();
		p.put("mail.smtp.host", this.mailServerHost);
//		p.put("mail.smtp.port", this.mailServerPort);
		p.put("mail.sender.username", userName);
		p.put("mail.sender.password", passwrod);

		return p ;
	}

	public String getMailServerHost() {
		return mailServerHost;
	}

	public void setMailServerHost(String mailServerHost) {
		this.mailServerHost = mailServerHost;
	}

	public String getMailServerPort() {
		return mailServerPort;
	}

	public void setMailServerPort(String mailServerPort) {
		this.mailServerPort = mailServerPort;
	}

	public String getFromAddress() {
		return fromAddress;
	}

	public void setFromAddress(String fromAddress) {
		this.fromAddress = fromAddress;
	}

	public String getToAddress() {
		return toAddress;
	}

	public void setToAddress(String toAddress) {
		this.toAddress = toAddress;
	}

	public String getUserName() {
		return userName;
	}

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

	public String getPasswrod() {
		return passwrod;
	}

	public void setPasswrod(String passwrod) {
		this.passwrod = passwrod;
	}

	public boolean isValidate() {
		return validate;
	}

	public void setValidate(boolean validate) {
		this.validate = validate;
	}

	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 String[] getAttachFileNames() {
		return attachFileNames;
	}

	public void setAttachFileNames(String[] attachFileNames) {
		this.attachFileNames = attachFileNames;
	}

}

　2. 服务类（SimpleMailSender）　

package sendEmail.email;

import java.util.Date;
import java.util.Properties;

import javax.mail.Address;
import javax.mail.Message;
import javax.mail.Session;
import javax.mail.BodyPart;
import javax.mail.MessagingException;
import javax.mail.Multipart;
import javax.mail.Transport;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeBodyPart;
import javax.mail.internet.MimeMessage;
import javax.mail.internet.MimeMultipart;
/**
 * 发送邮件格式设置
 * @author Administrator
 *
 */
public class SimpleMailSender {

	/**
	  * 以(text)(文本格)式发送邮件
	  * @param mailInfo 待发送的邮件的信息
	  */
	public boolean sendTextMail(MailSenderInfo mailInfo){
		Properties pro = mailInfo.getProperties();
		Session sendMailSession = Session.getInstance(pro) ;
		try {
		      // 根据session创建一个邮件消息
		      Message mailMessage = new MimeMessage(sendMailSession);
		      // 创建邮件发送者地址
		      Address from = new InternetAddress(mailInfo.getFromAddress());
		      // 设置邮件消息的发送者
		      mailMessage.setFrom(from);
		      // 创建邮件的接收者地址，并设置到邮件消息中
		      Address to = new InternetAddress(mailInfo.getToAddress());
		      mailMessage.setRecipient(Message.RecipientType.TO,to);
		      // 设置邮件消息的主题
		      mailMessage.setSubject(mailInfo.getSubject());
		      // 设置邮件消息发送的时间
		      mailMessage.setSentDate(new Date());
		      // 设置邮件消息的主要内容
		      String mailContent = mailInfo.getContent();
		      mailMessage.setText(mailContent);
		      // 发送邮件
		      mailMessage.saveChanges();
		      Transport transport = sendMailSession.getTransport("smtp");
		      transport.connect(mailInfo.getMailServerHost(), mailInfo.getUserName(), mailInfo.getPasswrod());
		      transport.sendMessage(mailMessage,mailMessage.getAllRecipients());
		      return true;    

		      } catch (MessagingException ex) {
		          ex.printStackTrace();
		      }
	    	return false;
	}

/**
* 以HTML格式发送邮件
* @param mailInfo 待发送的邮件信息
*/
	public static boolean sendHtmlMail(MailSenderInfo mailInfo){    

		 Properties pro = mailInfo.getProperties();
		 // 根据邮件会话属性和密码验证器构造一个发送邮件的session
		 Session sendMailSession = Session.getDefaultInstance(pro);
		 try {
		 // 根据session创建一个邮件消息
		 Message mailMessage = new MimeMessage(sendMailSession);
		 // 创建邮件发送者地址
		 Address from = new InternetAddress(mailInfo.getFromAddress());
		 // 设置邮件消息的发送者
		 mailMessage.setFrom(from);
		 // 创建邮件的接收者地址，并设置到邮件消息中
		 Address to = new InternetAddress(mailInfo.getToAddress());
		 // Message.RecipientType.TO属性表示接收者的类型为TO
		 mailMessage.setRecipient(Message.RecipientType.TO,to);
		 // 设置邮件消息的主题
		 mailMessage.setSubject(mailInfo.getSubject());
		 // 设置邮件消息发送的时间
		 mailMessage.setSentDate(new Date());
		 // MiniMultipart类是一个容器类，包含MimeBodyPart类型的对象
		 Multipart mainPart = new MimeMultipart();
		 // 创建一个包含HTML内容的MimeBodyPart
		 BodyPart html = new MimeBodyPart();
		 // 设置HTML内容
		 html.setContent(mailInfo.getContent(), "text/html; charset=utf-8");
		 mainPart.addBodyPart(html);
		 // 将MiniMultipart对象设置为邮件内容
		 mailMessage.setContent(mainPart);
		 // 发送邮件
		 mailMessage.saveChanges();
	     Transport transport = sendMailSession.getTransport("smtp");
	     transport.connect(mailInfo.getMailServerHost(), mailInfo.getUserName(), mailInfo.getPasswrod());
	     transport.sendMessage(mailMessage,mailMessage.getAllRecipients());
		 return true;
		 } catch (MessagingException ex) {
		     ex.printStackTrace();
		 }
		 return false;
	}
}

　　3.测试类（MailTest）

package sendEmail.email;
/**
 * 测试类
 * @author Administrator
 *
 */
public class MailTest {

	public static void main(String[] args) {
		//设置邮件
		try {
			MailSenderInfo mainInfo = new MailSenderInfo();
			mainInfo.setMailServerHost("smtp.163.com");
			mainInfo.setValidate(true);
			mainInfo.setUserName("**************");
			mainInfo.setPasswrod("********");
			mainInfo.setFromAddress("********");
			mainInfo.setToAddress("********");
			mainInfo.setSubject("lalalala");
			mainInfo.setContent("----");
			SimpleMailSender.sendHtmlMail(mainInfo);//发送文体格式
		} catch (Exception e) {
			e.printStackTrace();
		}
	}
}

　　注意：

mainInfo.setPasswrod("********"); 不是登录163邮箱的密码，是163邮箱授权码。