java 发送邮件范例

java 发送邮件实例

首先要将activation.jar mail.jar 两个jar包引入

如有不明之处或异常欢迎留言! java 发送邮件范例

import java.io.BufferedReader;
import java.io.File;
import java.io.FileReader;
import java.io.UnsupportedEncodingException;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;

import javax.mail.Message;
import javax.mail.MessagingException;
import javax.mail.Transport;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeMessage;

public class SendMail implements Runnable {

private String to;   //接收方

private String subject;  //标题

private String content;  //邮件内容

private Thread thread; //定义线程

private String sname; //邮件署名

private List attach;

private String type = "text/html"; //or text/plain 发送邮件的格式

private String smtpHost; //邮件服务器 smtp.163.com等
private String emailFrom; //发送方邮箱
private String fromPwd; //密码

//带模板的邮件
public SendMail(String to, String subject, String content,String fileName) {
  try{
   if(to!=null && !"".equals(to)){
    thread = new Thread(this);
    this.to = to;
    this.subject = subject;

    attach = new ArrayList();

       //读取文件模板

    File file=new File(fileName);
    BufferedReader br = new BufferedReader(new FileReader(file));

    StringBuffer sb=new StringBuffer();
    while (br.ready()) {
     sb.append(br.readLine());
     sb.append("\r\n");
    }
    //賛换模块中的##content变量内容为content
    this.content=sb.toString().replaceAll("##content",content);
   }
  }catch(Exception e){
   e.printStackTrace();
  }


}

//带上署名和模块的邮件
public SendMail(String sname,String to, String subject, String content,String fileName) {
  try{
   thread = new Thread(this);
   this.to = to;
   this.subject = subject;
   this.sname=sname;
   attach = new ArrayList();

   //读取文件模板

   File file=new File(fileName);
   BufferedReader br = new BufferedReader(new FileReader(file));
   StringBuffer sb=new StringBuffer();
   while (br.ready()) {
    sb.append(br.readLine());
   }
   this.content=sb.toString().replaceAll("##caicainet_content",content);

  }catch(Exception e){
   e.printStackTrace();
  }


}

public SendMail(String sname,String to, String subject, String content,int typeId) {

  thread = new Thread(this);
  this.to = to;
  this.subject = subject;
  this.sname=sname;
  attach = new ArrayList();
  this.content=content;
  this.type = "text/plain";
}

public void run() {
  try {
   send();
  } catch (Exception e) {
   e.printStackTrace();
  }
}

public void start() {
thread.start();
}

public boolean send() throws Exception {
return send(to, subject, content);
}

private boolean send(String to, String subject, String content){
  boolean blnResult = false;
  InternetAddress[] address = null;
  //mailserver邮件服务器 Form 发送邮件的邮箱 pwd密码
  //此处三个参数可能通过数据库或.properties等方式来获取，方便后期的管理与设置
  String mailserver = "smtp.sina.com";
  String From = "";//发送方的邮箱
  String pwd = "";//密码

  if(smtpHost!=null && !"".equals(smtpHost))
   mailserver=smtpHost;
  if(emailFrom!=null && !"".equals(emailFrom))
   From=emailFrom;
  if(fromPwd!=null && !"".equals(fromPwd))
   pwd=fromPwd;

  if(smtpHost!=null && "nopass".equals(smtpHost))
  {
   smtpHost="";
   System.out.println("发送给"+to+"失败！原因是smtp地址不正确");
   return false;
  }



  String messageText = content;

  boolean sessionDebug = false;
  Date d1=new Date();
  try {
   // 设定所要用的Mail 服务器和所使用的传输协议
   java.util.Properties props = System.getProperties();
   props.put("mail.host", mailserver);
   props.put("mail.transport.protocol", "smtp");
   props.put("mail.smtp.auth", "true");//指定是否需要SMTP验证

   // 产生新的Session 服务
   javax.mail.Session mailSession = javax.mail.Session.getDefaultInstance(props, null);
   mailSession.setDebug(sessionDebug);
   Message msg = new MimeMessage(mailSession);
   if(sname!=null && !"".equals(sname))
   {
    // 设定发邮件的人
    msg.setFrom(new InternetAddress(From,sname));
   }
   else
   {
    //带署名的邮件
    msg.setFrom(new InternetAddress(From,"刘海洋"));
   }

   if(sname!=null && "mail".equals(sname))
   {
    msg.setFrom(new InternetAddress(From,""));
   }

   // 设定收信人的信箱
   address = InternetAddress.parse(to, false);
   msg.setRecipients(Message.RecipientType.TO, address);

// 设定信中的主题
msg.setSubject(subject);

// 设定送信的时间
msg.setSentDate(new Date());

   if("text/html".equals(this.type))
   {
        msg.setContent(messageText, type + ";charset=GB2312");
   }
   else
   {
    msg.setText(messageText);
   }

   Transport transport = mailSession.getTransport("smtp");

   transport.connect(mailserver, From, pwd);
   transport.sendMessage(msg, msg.getAllRecipients());
   transport.close();
   Date d2=new Date();
   System.out.println("发送给"+to+"成功！耗时"+(d2.getTime()-d1.getTime())+"毫秒,发送方："+From);
   blnResult=true;

  } catch (MessagingException mex) {
   mex.printStackTrace();
   blnResult=false;
  } catch (UnsupportedEncodingException e) {
   e.printStackTrace();
  }

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

public String getTo() {
return this.to;
}

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

public String getSubject() {
return this.subject;
}

public void setContent(String content) {
this.content = content;
}

public String getContent() {
return this.content;
}

public void addAttach(String file) {
attach.add(file);
}

public boolean isAttach() {
  return attach != null && attach.size() > 0;
}

public static void main(String[] args) {
  try {
   //普通的文字邮件
  SendMail sendMail=new SendMail("王大河","**@163.com", "试试", "没时间那",1);
  sendMail.start();


   //带模版的邮件
   String path = "D:/project/tongji/WebRoot/template/email.html"; //获取存放路径

   String chtml="";
   SendMail sendMail=new SendMail("**@163.com","上哪去？！",chtml,path);
   sendMail.start();
  } catch (Exception e) {
   e.printStackTrace();
  }
}

}

转自：http://blog.sina.com.cn/s/blog_4ffef4520100dbi3.html

java 发送邮件范例

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