参考，https://www.runoob.com/jsp/jsp-sending-email.html
<%@ page import="java.io.*,java.util.*,javax.mail.*"%>
<%@ page import="javax.mail.internet.*,javax.activation.*"%>
<%@ page import="javax.servlet.http.*,javax.servlet.*" %>
<%
String result;
// 收件人的电子邮件
String to = "abcd@gmail.com";
// 发件人的电子邮件
String from = "mcmohd@gmail.com";
// 假设你是从本地主机发送电子邮件
String host = "localhost";
// 获取系统属性对象
Properties properties = System.getProperties();
// 设置邮件服务器
properties.setProperty("mail.smtp.host", host);
// 获取默认的Session对象。
Session mailSession = Session.getDefaultInstance(properties);
try{
// 创建一个默认的MimeMessage对象。
MimeMessage message = new MimeMessage(mailSession);
// 设置 From: 头部的header字段
message.setFrom(new InternetAddress(from));
// 设置 To: 头部的header字段
message.addRecipient(Message.RecipientType.TO,
new InternetAddress(to));
// 设置 Subject: header字段
message.setSubject("This is the Subject Line!");
// 现在设置的实际消息
message.setText("This is actual message");
// 发送消息
Transport.send(message);
result = "Sent message successfully....";
}catch (MessagingException mex) {
mex.printStackTrace();
result = "Error: unable to send message....";
}
%>
<html>
<head>
<title>Send Email using JSP</title>
</head>
<body>
<center>
<h1>Send Email using JSP</h1>
</center>
<p align="center">
<%
out.println("Result: " + result + "
");
%>
</p>
</body>
</html>
如上代码，在网上很容易找到，但是关于mail.jar;activation.jar 放置位置都没有，我也是初次接触，现记录下
$TOMCAT_HOME
bin
conf
lib
...
webapps
<your app>
test.jsp (Can be in any directory under <your app> except WEB-INF)
WEB-INF
lib
mail.jar
activation.jar