使用java向邮箱发送邮件

这是我很早之前写的一个工具类，最近在整理自己所学的东西，无意中找到了，就拿出来与大家分享，代码如下:

import java.io.ByteArrayOutputStream;
import java.io.FileInputStream;
import java.io.IOException;
import java.util.Arrays;
import java.util.Date;
import java.util.Properties;   
 
import javax.activation.DataHandler;
import javax.activation.FileDataSource;
import javax.mail.Authenticator;
import javax.mail.Message;
import javax.mail.PasswordAuthentication;
import javax.mail.Session;
import javax.mail.Transport;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeMessage;   
 
import javax.mail.BodyPart;
import javax.mail.Multipart;
import javax.mail.internet.MimeBodyPart;
import javax.mail.internet.MimeMultipart;   
 
import org.apache.struts.util.MessageResources;
 
import com.qq.connect.javabeans.tenpay.Address;
 
//import com.sun.istack.internal.ByteArrayDataSource;
public class SendMails {
       public  int sendMail(String emailTitle, String content, String emailTo,MessageResources message) throws Exception {
        System.out.println(smtpServer1);
        Properties props = new Properties();
        props.put("mail.smtp.auth", "true");
        props.put( "mail.transport.protocol", "smpt");
        props.put("mail.smtp.host", smtpServer1);
        // 获得邮件会话对象
        Session session = Session.getInstance(props,new SmtpAuthenticator1(fromMailAddress1, password1));
        /** *************************************************** */
        // 创建MIME邮件对象
        MimeMessage mimeMessage = new MimeMessage(session);
        mimeMessage.setFrom(new InternetAddress(fromMailAddress1));// 发件人
        mimeMessage.setRecipient(Message.RecipientType.TO, new InternetAddress(emailTo));// 收件人
        mimeMessage.setSubject(emailTitle);
        mimeMessage.setSentDate(new Date());// 发送日期
        Multipart mp = new MimeMultipart("related");// related意味着可以发送html格式的邮件
        /** *************************************************** */
        BodyPart bodyPart = new MimeBodyPart();// 正文
       StringBuffer content = new StringBuffer();
         bodyPart.setDataHandler(new DataHandler(content.toString(),"text/html;charset=GBK"));// 网页格式
               /** *************************************************** */
//        BodyPart attachBodyPart = new MimeBodyPart();// 普通附件
//        FileDataSource fds = new FileDataSource("c:/boot.ini");
//        attachBodyPart.setDataHandler(new DataHandler(fds));
//        attachBodyPart.setFileName("=?GBK?B?"+ new sun.misc.BASE64Encoder().encode(fds.getName().getBytes()) + "?=");// 解决附件名中文乱码
//        mp.addBodyPart(attachBodyPart);
        /** *************************************************** */
//        MimeBodyPart imgBodyPart = new MimeBodyPart(); // 附件图标
//        byte[] bytes = readFile("E:/webcms/webcms/WebContent/images/bjx.jpg");
//        ByteArrayDataSource fileds = new ByteArrayDataSource(bytes,"application/octet-stream");
//        imgBodyPart.setDataHandler(new DataHandler(fileds));
//        imgBodyPart.setFileName("button.gif");
//        imgBodyPart.setHeader("Content-ID", "<IMG1></IMG1>");// 在html中使用该图片方法src="cid:IMG1"
//        mp.addBodyPart(imgBodyPart);
        /** *************************************************** */
        mp.addBodyPart(bodyPart);
        mimeMessage.setContent(mp);//设置邮件内容对象
        try {
            Transport.send(mimeMessage);//发送邮件
//            Transport transport=session.getTransport();
//            transport.send(mimeMessage);
} catch (Exception e) {
//     e.printStackTrace();
if(e.getMessage().contains("550 User not found")){
return 2;
}else{
return 3;
}
}
        //system.out.println("SendEmail OK!!");
        return 0;
    }
public void setUsername1(String username1) {
this.username1 = username1;
}
public void setPassword1(String password1) {
this.password1 = password1;
}
public void setSmtpServer1(String smtpServer1) {
this.smtpServer1 = smtpServer1;
}
 
public void setFromMailAddress1(String fromMailAddress1) {
this.fromMailAddress1 = fromMailAddress1;
}
 public static byte[] readFile(String file) {
        FileInputStream fis = null;
        ByteArrayOutputStream bos = null;
        try {
            fis = new FileInputStream(file);
            bos = new ByteArrayOutputStream();
            int bytesRead;
            byte buffer[] = new byte[1024 * 1024];
            while ((bytesRead = fis.read(buffer)) != -1) {
                bos.write(buffer, 0, bytesRead);
                Arrays.fill(buffer, (byte) 0);
            }
        } catch (IOException e1) {
            e1.printStackTrace();
        } finally {
            try {
                if (bos != null)
                    bos.close();
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
        return bos.toByteArray();
    }
}
/**
 * Smtp认证
 */
class SmtpAuthenticator1 extends Authenticator {
    String username = null;
    String password = null;   
 
    // SMTP身份验证
    public SmtpAuthenticator1(String username, String password) {
        this.username = username;
        this.password = password;
        System.out.println(username+"::::::"+password);
    }   
 
    public PasswordAuthentication getPasswordAuthentication() {
        return new PasswordAuthentication(this.username, this.password);
    }   
 
}