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JavaMail实现邮件发送的方法

程序员文章站 2024-03-02 21:06:58
本文实例讲述了javamail实现邮件发送的方法。分享给大家供大家参考。具体如下: 下载 activation.jar 和 mail.jar 配置classpath,将...

本文实例讲述了javamail实现邮件发送的方法。分享给大家供大家参考。具体如下:

下载 activation.jar 和 mail.jar
配置classpath,将上面两个jar包加入到classpath中。

javabean : "sendemail.java"

package cls; 
import java.util.date; 
import java.util.properties; 
import javax.mail.*; 
import javax.mail.internet.*; 
public class sendemail 
{ 
 string host; 
 string username; 
 string password; 
 string fromaddr; 
 string toaddr; 
 string subject; 
 string content; 
 public sendemail() 
 { 
 // 变量初始化 
 host = "smtp.qq.com"; 
 username = ""; 
 password = ""; 
 fromaddr = "@"; 
 } 
 // 发送邮件 
 public boolean sendmail() 
 { 
 properties prop; 
 session session; 
 mimemessage msg; 
 try 
 { 
  prop = new properties(); // 存储连接参数 
  prop.put("mail.smtp.host",host); 
  prop.put("mail.smtp.auth","true"); 
  session = session.getdefaultinstance(prop,null);
  // 获得一个邮件的session 
  msg = new mimemessage(session); // 邮件信息 
  // 检查邮件地址是否合法 
  if(fromaddr == null || fromaddr.equals("")) 
  { 
  throw new exception("发件地址错误"); 
  } 
  if(toaddr == null || toaddr.equals("")) 
  { 
  throw new exception("目标地址错误"); 
  } 
  //设置源地址 
  msg.setfrom(new internetaddress(fromaddr)); 
  //设置目的地址 
  msg.setrecipient(message.recipienttype.to,new internetaddress(toaddr)); 
  //设置主题 
  msg.setsubject(subject); 
  multipart mp = new mimemultipart(); //邮件内容 
  mimebodypart mbpcontent = new mimebodypart(); 
  mbpcontent.setcontent(content,"text/html"); // 邮件格式 
  mp.addbodypart(mbpcontent); 
  msg.setcontent(mp); 
  msg.setsentdate(new date()); 
  // 发送邮件 
  transport transport = session.gettransport("smtp"); 
  transport.connect((string)prop.get("mail.smtp.host"),username,password); 
  transport.sendmessage(msg,msg.getrecipients(mimemessage.recipienttype.to)); 
  transport.close(); 
  return true; 
 } 
 catch(exception e) 
 { 
  system.out.println(e); 
  return false; 
 } 
 } 
 // getter and setter 
 public string getpassword() 
 { 
 return password; 
 } 
 public void setpassword(string password) 
 { 
 this.password = password; 
 } 
 public string gethost() 
 { 
 return host; 
 } 
 public void sethost(string host) 
 { 
 this.host = host; 
 } 
 public string getusername() 
 { 
 return username; 
 } 
 public void setusername(string username) 
 { 
 this.username = username; 
 } 
 public string getfromaddr() 
 { 
 return this.fromaddr; 
 } 
 public void setfromaddr(string addr) 
 { 
 fromaddr = addr; 
 } 
 public string gettoaddr() 
 { 
 return this.toaddr; 
 } 
 public void settoaddr(string addr) 
 { 
 toaddr = addr; 
 } 
 public string getsubject() 
 { 
 return subject; 
 } 
 public void setsubject(string sub) 
 { 
 subject = sub; 
 } 
 public string getcontent() 
 { 
 return content; 
 } 
 public void setcontent(string content) 
 { 
 this.content = content; 
 } 
}

sendmail.jsp:

<%@ page language="java" contenttype="text/html; charset=utf-8" pageencoding="utf-8" %>
<!doctype html public "-//w3c//dtd html 4.01 transitional//en" 
"http://www.w3.org/tr/html4/loose.dtd"> 
<html> 
 <head> 
 <title>mail</title> 
 <meta http-equiv="content-type" content="text/html; charset=utf-8" />
 </head> 
 <body> 
 <center> 
  <jsp:usebean id="email" class="cls.sendemail" scope="page" /> 
  <jsp:setproperty name="email" property="toaddr" value="host" />
  <jsp:setproperty name="email" property="fromaddr" value="host" />
  <jsp:setproperty name="email" property="username" value="username" />
  <jsp:setproperty name="email" property="password" value="password" />
  <jsp:setproperty name="email" property="subject" value="mail test" />
  <jsp:setproperty name="email" property="content" value="hello world"/>
  <%=email.sendmail() %>
 </center> 
 </body> 
</html>

希望本文所述对大家的java程序设计有所帮助。