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本文實例講述了JavaMail完成郵件發送的辦法。分享給年夜家供年夜家參考。詳細以下：
下載 activation.jar 和 mail.jar
設置裝備擺設CLASSPATH，將下面兩個jar包參加到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()
{
// 變量初始化
host = "smtp.qq.com";
username = "";
password = "";
fromAddr = "@";
}
// 發送郵件
public boolean sendMail()
{
Properties prop;
Session session;
MimeMessage msg;
try
{
prop = new Properties(); // 存儲銜接參數
prop.put("mail.smtp.host",host);
prop.put("mail.smtp.auth","true");
session = Session.getDefaultInstance(prop,null);
// 取得一個郵件的Session
msg = new MimeMessage(session); // 郵件信息
// 檢討郵件地址能否正當
if(fromAddr == null || fromAddr.equals(""))
{
throw new Exception("發件地址毛病");
}
if(toAddr == null || toAddr.equals(""))
{
throw new Exception("目的地址毛病");
}
//設置源地址
msg.setFrom(new InternetAddress(fromAddr));
//設置目標地址
msg.setRecipient(Message.RecipientType.TO,new InternetAddress(toAddr));
//設置主題
msg.setSubject(subject);
Multipart mp = new MimeMultipart(); //郵件內容
MimeBodyPart mbpContent = new MimeBodyPart();
mbpContent.setContent(content,"text/html"); // 郵件格局
mp.addBodyPart(mbpContent);
msg.setContent(mp);
msg.setSentDate(new Date());
// 發送郵件
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>
願望本文所述對年夜家的java法式設計有所贊助。
