java email

作者：老紫竹 java2000

 

 

 

    MailLet mail = new MailLet();
    mail.setSmtpServer("yyyyyyyyyyyyyyyyy");
    mail.setPort(80);
    mail.setIfAuth(true);
    mail.setFrom("xxxxxxx");
    mail.setDisplayName("yyyyyyyyyyyyyyy");
    mail.setUserName("xxxxxxxxxx");
    mail.setPassword("xxxxxxxxxxxxxxxxxxxx");
    mail.setTo(mailTo);
    mail.setSubject(template.getSubject());
    mail.setContent(template.getContent());
    mail.setContentType("text/plain");
    mail.setCharset(CHARSET);
    mail.send();

 

package mail;
import java.util.Date;
import java.util.Enumeration;
import java.util.HashMap;
import java.util.Properties;
import java.util.Vector;
import javax.activation.FileDataSource;
import javax.mail.Address;
import javax.mail.AuthenticationFailedException;
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;
public class MailLet {
  // 定义发件人、收件人、SMTP服务器、用户名、密码、主题、内容等
  private String displayName;
  private String to;
  private String from;
  private String smtpServer;
  private String username;
  private String password;
  private String subject;
  private String content;
  private boolean ifAuth; // 服务器是否要身份认证
  private String filename = "";
  private Vector file = new Vector(); // 用于保存发送附件的文件名的集合
  private String contentType = "text/html";
  private String charset = "utf-8";
  public String getContentType() {
    return contentType;
  }
  public void setContentType(String contentType) {
    this.contentType = contentType;
  }
  public String getCharset() {
    return charset;
  }
  public void setCharset(String charset) {
    this.charset = charset;
  }
  /**
   * 设置SMTP服务器地址
   */
  public void setSmtpServer(String smtpServer) {
    this.smtpServer = smtpServer;
  }
  /**
   * 设置发件人的地址
   */
  public void setFrom(String from) {
    this.from = from;
  }
  /**
   * 设置显示的名称
   */
  public void setDisplayName(String displayName) {
    this.displayName = displayName;
  }
  /**
   * 设置服务器是否需要身份认证
   */
  public void setIfAuth(boolean ifAuth) {
    this.ifAuth = ifAuth;
  }
  /**
   * 设置E-mail用户名
   */
  public void setUserName(String username) {
    this.username = username;
  }
  /**
   * 设置E-mail密码
   */
  public void setPassword(String password) {
    this.password = password;
  }
  /**
   * 设置接收者
   */
  public void setTo(String to) {
    this.to = to;
  }
  /**
   * 设置主题
   */
  public void setSubject(String subject) {
    this.subject = subject;
  }
  /**
   * 设置主体内容
   */
  public void setContent(String content) {
    this.content = content;
  }
  public MailLet() {
  }
  public MailLet(String smtpServer, String username, String password, String from) {
    this.setSmtpServer(smtpServer);
    this.from = from;
  }
  /**
   * 初始化SMTP服务器地址、发送者E-mail地址、用户名、密码、接收者、主题、内容
   */
  public MailLet(String smtpServer, String from, String displayName, String username,
      String password, String to, String subject, String content) {
    this.smtpServer = smtpServer;
    this.from = from;
    this.displayName = displayName;
    this.ifAuth = true;
    this.username = username;
    this.password = password;
    this.to = to;
    this.subject = subject;
    this.content = content;
  }
  /**
   * 初始化SMTP服务器地址、发送者E-mail地址、接收者、主题、内容
   */
  public MailLet(String smtpServer, String from, String displayName, String to, String subject,
      String content) {
    this.smtpServer = smtpServer;
    this.from = from;
    this.displayName = displayName;
    this.ifAuth = false;
    this.to = to;
    this.subject = subject;
    this.content = content;
  }
  private int port = 25;
  public int getPort() {
    return port;
  }
  public void setPort(int port) {
    this.port = port;
  }
  /**
   * 发送邮件
   */
  public boolean send() {
    HashMap<String, String> map = new HashMap<String, String>();
    map.put("state", "success");
    String message = "邮件发送成功！";
    Session session = null;
    Properties props = System.getProperties();
    props.put("mail.smtp.host", smtpServer);
    props.put("mail.smtp.port", port);
    try {
      if (ifAuth) { // 服务器需要身份认证
        props.put("mail.smtp.auth", "true");
        SmtpAuth smtpAuth = new SmtpAuth(username, password);
        session = Session.getInstance(props, smtpAuth);
      } else {
        props.put("mail.smtp.auth", "false");
        session = Session.getDefaultInstance(props, null);
      }
      session.setDebug(false);
      Transport trans = null;
      Message msg = new MimeMessage(session);
      try {
        Address from_address = new InternetAddress(from, displayName);
        msg.setFrom(from_address);
      } catch (java.io.UnsupportedEncodingException e) {
        e.printStackTrace();
      }
      InternetAddress[] address = { new InternetAddress(to) };
      msg.setRecipients(Message.RecipientType.TO, address);
      msg.setSubject(subject);
      Multipart mp = new MimeMultipart();
      MimeBodyPart mbp = new MimeBodyPart();
      mbp.setContent(content.toString(), getContentType() + ";charset=" + getCharset());
      mp.addBodyPart(mbp);
      if (!file.isEmpty()) {// 有附件
        Enumeration efile = file.elements();
        while (efile.hasMoreElements()) {
          mbp = new MimeBodyPart();
          filename = efile.nextElement().toString(); // 选择出每一个附件名
          FileDataSource fds = new FileDataSource(filename); // 得到数据源
          // mbp.setDataHandler(new DataHandler(fds)); //得到附件本身并至入BodyPart
          mbp.setContent("12121212", "text/html");
          mbp.setFileName(MimeUtility.encodeText(fds.getName(), getCharset(),"B"))); // 得到文件名同样至入BodyPart
          mp.addBodyPart(mbp);
        }
        file.removeAllElements();
      }
      msg.setContent(mp); // Multipart加入到信件
      msg.setSentDate(new Date()); // 设置信件头的发送日期
      // 发送信件
      msg.saveChanges();
      trans = session.getTransport("smtp");
      trans.connect(smtpServer, username, password);
      trans.sendMessage(msg, msg.getAllRecipients());
      trans.close();
    } catch (AuthenticationFailedException e) {
      map.put("state", "failed");
      message = "邮件发送失败！错误原因：/n" + "身份验证错误!";
      e.printStackTrace();
      return false;
    } catch (MessagingException e) {
      message = "邮件发送失败！错误原因：/n" + e.getMessage();
      map.put("state", "failed");
      e.printStackTrace();
      Exception ex = null;
      if ((ex = e.getNextException()) != null) {
        System.out.println(ex.toString());
        ex.printStackTrace();
      }
      return false;
    }catch(Exception ex) {
      ex.printStackTrace();
      return false;
    }
    // System.out.println("/n提示信息:"+message);
    map.put("message", message);
    return true;
  }
}

 

 

package mail;  
  
public class SmtpAuth extends javax.mail.Authenticator {   
    private String username,password;   
  
    public SmtpAuth(String username,String password){   
        this.username = username;    
        this.password = password;    
    }   
    protected javax.mail.PasswordAuthentication getPasswordAuthentication() {   
        return new javax.mail.PasswordAuthentication(username,password);   
    }   
}