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"
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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。
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