使用javamail發送郵件

在java web項目我們經常會使用到發送郵件，比如發送告警通知，對實時性要求不太高的項目就可以發郵件，畢竟是免費的嘛，這裏寫了幾段java發送郵件的代碼，參考http://www.iteye.com/topic/352753，自己又改了一下，比如發送附件，多個抄送人等。

依賴jar包：mail-1.4.jar

1、MailSenderInfo郵件信息類

package com.chen.util;

import java.util.Properties;
/**
 * 郵件信息
 * */
public class MailSenderInfo {    
    // 發送郵件的服務器的IP和端口    
    private String mailServerHost;    
    private String mailServerPort = "25";    
    // 郵件發送者的地址    
    private String fromAddress;    
    // 郵件接收者的地址    
    private String toAddress;    
    // 登陸郵件發送服務器的用戶名和密碼    
    private String userName;    
    private String password;    
    // 是否需要身份驗證    
    private boolean validate = false;    
    // 郵件主題    
    private String subject;    
    // 郵件的文本內容    
    private String content;    
    // 郵件附件的文件名    
    private String[] attachFileNames; 
    // 郵件的接收者，可以有多個
    private String[] receivers;
    // 郵件的抄送者，可以有多個
    private String[] ccs;
    
    /** *//**   
      * 獲得郵件會話屬性   
      */    
    public Properties getProperties(){    
      Properties p = new Properties();    
      p.put("mail.smtp.host", this.mailServerHost);    
      p.put("mail.smtp.port", this.mailServerPort);    
      p.put("mail.smtp.auth", validate ? "true" : "false");    
      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 boolean isValidate() {    
      return validate;    
    }   
    public void setValidate(boolean validate) {    
      this.validate = validate;    
    }   
    public String[] getAttachFileNames() {    
      return attachFileNames;    
    }   
    public void setAttachFileNames(String[] fileNames) {    
      this.attachFileNames = fileNames;    
    }   
    public String getFromAddress() {    
      return fromAddress;    
    }    
    public void setFromAddress(String fromAddress) {    
      this.fromAddress = fromAddress;    
    }   
    public String getPassword() {    
      return password;    
    }   
    public void setPassword(String password) {    
      this.password = password;    
    }   
    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 getSubject() {    
      return subject;    
    }   
    public void setSubject(String subject) {    
      this.subject = subject;    
    }   
    public String getContent() {    
      return content;    
    }   
    public void setContent(String textContent) {    
      this.content = textContent;    
    }    
    public String[] getCcs() {
        return ccs;
    }
    public void setCcs(String[] ccs) {
        this.ccs = ccs;
    }
    public String[] getReceivers() {
        return receivers;
    }
    public void setReceivers(String[] receivers) {
        this.receivers = receivers;
    }
}   

2、MyAuthenticator  該類發送郵件是鑑權用，繼承Authenticator

package com.chen.util;

import javax.mail.Authenticator;
import javax.mail.PasswordAuthentication;
/**
 * 該類發送郵件是鑑權用
 * 繼承Authenticator
 * 
 * */
public class MyAuthenticator extends Authenticator{   
    String userName=null;   
    String password=null;   
        
    public MyAuthenticator(){   
    }   
    public MyAuthenticator(String username, String password) {    
        this.userName = username;    
        this.password = password;    
    }    
    protected PasswordAuthentication getPasswordAuthentication(){   
        return new PasswordAuthentication(userName, password);   
    }   
}   

3、MailUtil  發送郵件工具類

package com.chen.util;

import java.util.Date;

import javax.activation.DataHandler;
import javax.activation.FileDataSource;
import javax.mail.Address;
import javax.mail.BodyPart;
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 javax.mail.internet.MimeUtility;

public class MailUtil 
{
	//protected static final String serverHost=PropertiesUtil.getPropertiesByKey("prop.properties", "ServerHost");
	protected static final String serverHost="smtp.qq.com";
	protected static final String serverPort = "25";
	protected static final String userName = "******@qq.com";
	protected static final String password = "********";
	
	/**
	 * 發送郵件給多個抄送人
	 * */
	public static boolean sendMailtoMultiCC(MailSenderInfo mailInfo){
        MyAuthenticator authenticator = null;
        if (mailInfo.isValidate()) 
        {
            authenticator = new MyAuthenticator(mailInfo.getUserName(), mailInfo.getPassword());
        }
        Session sendMailSession = Session.getInstance(mailInfo.getProperties(), authenticator);
        //sendMailSession.setDebug(true);
        try {
        	//創建郵件
            Message mailMessage = new MimeMessage(sendMailSession);
            // 創建郵件發送者地址
            Address from = new InternetAddress(mailInfo.getFromAddress());
            mailMessage.setFrom(from);
            // 創建郵件的接收者地址，並設置到郵件消息中
            Address to = new InternetAddress(mailInfo.getToAddress());
            mailMessage.setRecipient(Message.RecipientType.TO, to);
            // 獲取抄送者信息
            String[] ccs = mailInfo.getCcs();
            if (ccs != null){
                // 爲每個郵件接收者創建一個地址
                Address[] ccAdresses = new InternetAddress[ccs.length];
                for (int i=0; i<ccs.length; i++){
                    ccAdresses[i] = new InternetAddress(ccs[i]);
                }
                // 將抄送者信息設置到郵件信息中，注意類型爲Message.RecipientType.CC
                mailMessage.setRecipients(Message.RecipientType.CC, ccAdresses);
            } 
            
            mailMessage.setSubject(mailInfo.getSubject());
            mailMessage.setSentDate(new Date());
            // 設置郵件內容
            Multipart mainPart = new MimeMultipart();
            BodyPart html = new MimeBodyPart();
            html.setContent(mailInfo.getContent(), "text/html; charset=UTF-8");
            //添加附件
            String[] fileName = mailInfo.getAttachFileNames();
            if(fileName != null)
            {
            	for(int i=0;i<fileName.length;i++)
            	{
                    BodyPart bodyPart = new MimeBodyPart();
            		DataHandler dh = new DataHandler(new FileDataSource(fileName[i]));
            		bodyPart.setDataHandler(dh);
            		//防止附件名中文亂碼
            		bodyPart.setFileName(MimeUtility.encodeText(dh.getName()));
                    mainPart.addBodyPart(bodyPart);
            	}
            }
            mainPart.addBodyPart(html);
            mailMessage.setContent(mainPart);
            // 發送郵件
            Transport.send(mailMessage);
            return true;
        } catch (Exception ex) {
            ex.printStackTrace();
        }
        return false;
    }
	
	//發送簡單郵件
	public static void main(String [] args) throws MessagingException
	{
		
		 MailSenderInfo mailInfo = new MailSenderInfo();
	        mailInfo.setMailServerHost(serverHost);
	        mailInfo.setMailServerPort(serverPort);
	        mailInfo.setValidate(true);
	        mailInfo.setUserName(userName);
	        mailInfo.setPassword(password);
	        mailInfo.setFromAddress(userName);
	        mailInfo.setToAddress("**************@qq.com");
	        mailInfo.setSubject("我是主題");
	        mailInfo.setContent("我是內容");
	        String tos = "*******,*********";
	        if(!tos.equals("")){
	        	String[] receivers = tos.split(",");
	            String[] ccs = receivers;
	            mailInfo.setReceivers(receivers);//多個接收人
	            mailInfo.setCcs(ccs);//多個抄送人
	        }
	        String fileName = "C:\\Users\\Administrator\\Desktop\\******.png,C:\\Users\\Administrator\\Desktop\\*********.sql";
	        if(!fileName.equals(""))
	        {
	        	String [] fileNames = fileName.split(",");
	        	mailInfo.setAttachFileNames(fileNames);
	        }
	        
	       sendMailtoMultiCC(mailInfo);//發送多個抄送人
		
	}
	
}

使用方法可以參考第3個類MailUtil的main方法裏調用發送郵件的方法sendMailtoMultiCC，可以抄送給多人，可以發送多個附件。

借鑑了han2000lei博客，增加了多個抄送人和附件，如有興趣可以移步。