我想使用jsp发送电子邮件。 我开发了这个小代码来发送电子邮件。 我已经添加了所有需要的库，例如 java 邮件 API 和 JAF。但它仍然不起作用。 我不知道这出了什么问题。 它向我显示错误:无法发送消息。
<%@ page import="java.io.*,java.util.*,javax.mail.*"%>
<%@ page import="javax.mail.internet.*,javax.activation.*"%>
<%@ page import="javax.servlet.http.*,javax.servlet.*" %>
<% String result;
String to = "kudale.ashish1992@gmail.com";
String from = "kudale.ashish1992@yahoo.com";
String host = "smtp.mail.yahoo.com";
Properties properties = System.getProperties();
properties.setProperty("mail.smtp.host", host);
properties.setProperty("mail.user", "Username");
properties.setProperty("mail.password", "Paasword");
//String to = request.getParameter("to");
//String from = request.getParameter("from");
String subject = request.getParameter("subject");
String messageText = request.getParameter("body");
Session mailSession = Session.getDefaultInstance(properties);
try{
MimeMessage message = new MimeMessage(mailSession);
message.setFrom(new InternetAddress(from));
message.addRecipient(Message.RecipientType.TO, new InternetAddress(to));
BodyPart messageBodyPart = new MimeBodyPart();
messageBodyPart.setText("This is message body");
Multipart multipart = new MimeMultipart();
multipart.addBodyPart(messageBodyPart);
messageBodyPart = new MimeBodyPart();
String filename = "file.txt";
DataSource source = new FileDataSource(filename);
messageBodyPart.setDataHandler(new DataHandler(source));
messageBodyPart.setFileName(filename);
multipart.addBodyPart(messageBodyPart);
message.setContent(multipart );
Transport.send(message);
String title = "Send Email";
result = "Sent message successfully....";
}
catch (MessagingException mex) {
mex.printStackTrace();
result = "Error: unable to send message....";
}
%>
<html>
<head>
<title>Send email</title>
</head>
<body>
<center> <h1>Send Attachement Email using JSP</h1> </center>
<p align="center">
<% out.println("Result: " + result + "\n"); %>
</p>
</body>
</html>
最佳答案
我在我的机器上尝试过这个，但出现了两个错误。
首先，您在这里拼错了properties
roperties.setProperty("mail.password", "Paasword");
其次，file.txt 的访问被拒绝错误。我设法给它一条路径并且它起作用了。
结果:它显示消息发送成功。
<%@ page import="java.io.*,java.util.*,javax.mail.*"%>
<%@ page import="javax.mail.internet.*,javax.activation.*"%>
<%@ page import="javax.servlet.http.*,javax.servlet.*" %>
<% String result;
String to = "kudale.ashish1992@gmail.com";
String from = "kudale.ashish1992@yahoo.com";
String host = "localhost";
Properties properties = System.getProperties();
properties.setProperty("mail.smtp.host", host);
properties.setProperty("mail.user", "Username");
properties.setProperty("mail.password", "Paasword");
//String to = request.getParameter("to");
//String from = request.getParameter("from");
String subject = request.getParameter("subject");
String messageText = request.getParameter("body");
Session mailSession = Session.getDefaultInstance(properties);
try{
MimeMessage message = new MimeMessage(mailSession);
message.setFrom(new InternetAddress(from));
message.addRecipient(Message.RecipientType.TO, new InternetAddress(to));
BodyPart messageBodyPart = new MimeBodyPart();
messageBodyPart.setText("This is message body");
Multipart multipart = new MimeMultipart();
multipart.addBodyPart(messageBodyPart);
messageBodyPart = new MimeBodyPart();
String filename = "file.txt";
DataSource source = new FileDataSource(filename);
messageBodyPart.setDataHandler(new DataHandler(source));
messageBodyPart.setFileName(filename);
multipart.addBodyPart(messageBodyPart);
message.setContent(multipart );
Transport.send(message);
String title = "Send Email";
result = "Sent message successfully....";
}
catch (MessagingException mex) {
mex.printStackTrace();
result = "Error: unable to send message....";
}
%>
<html>
<head>
<title>Send email</title>
</head>
<body>
<center> <h1>Send Attachement Email using JSP</h1> </center>
<p align="center">
<% out.println("Result: " + result + "\n"); %>
</p>
</body>
</html>
关于java - 使用jsp发送邮件和附件文件，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/21201004/