发布于 2015-08-17 14:57:33 | 217 次阅读 | 评论: 0 | 来源: 网络整理
要使用JSP发送邮件是很简单的,需要在您的机器上安装JavaMail API和Java激活框架(JAF)。
您可以从Java标准网站上下载的JavaMail(版本1.2)的最新版本。
您可以从Java的标准的网站下载JavaBeans激活框架JAF(版本1.0.2)的最新版本。
下载并解压缩这些文件,在新创建的顶层目录,你会发现一些jar文件同时为应用。你需要添加了mail.jar和activation.jar文件的文件在你的CLASSPATH中。
下面是一个例子,从你的机器发送一个简单的电子邮件。这里假设你的本地主机连接到互联网,并有足够的能力来发送电子邮件。同时要确保从Java电子邮件API包和CLASSPATH中可用JAF包ARA的所有jar文件。
<%@ page import="java.io.*,java.util.*,javax.mail.*"%>
<%@ page import="javax.mail.internet.*,javax.activation.*"%>
<%@ page import="javax.servlet.http.*,javax.servlet.*" %>
<%
String result;
// Recipient's email ID needs to be mentioned.
String to = "abcd@gmail.com";
// Sender's email ID needs to be mentioned
String from = "mcmohd@gmail.com";
// Assuming you are sending email from localhost
String host = "localhost";
// Get system properties object
Properties properties = System.getProperties();
// Setup mail server
properties.setProperty("mail.smtp.host", host);
// Get the default Session object.
Session mailSession = Session.getDefaultInstance(properties);
try{
// Create a default MimeMessage object.
MimeMessage message = new MimeMessage(mailSession);
// Set From: header field of the header.
message.setFrom(new InternetAddress(from));
// Set To: header field of the header.
message.addRecipient(Message.RecipientType.TO,
new InternetAddress(to));
// Set Subject: header field
message.setSubject("This is the Subject Line!");
// Now set the actual message
message.setText("This is actual message");
// Send message
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 + "n");
%>
</p>
</body>
</html>
现在,让我们把上面的代码写到SendEmail.jsp文件,并使用URL http://localhost:8080/SendEmail.jsp调用这个JSP这将发送一封电子邮件到指定的电子邮件ID abcd@gmail.comand会显示以下回应:
Send Email using JSPResult: Sent message successfully.... |
如果您想发送电子邮件给多个收件人,然后下面的方法将被用来指定多个电子邮件ID:
void addRecipients(Message.RecipientType type,
Address[] addresses)
throws MessagingException
这里的参数的说明:
type: 这将被设定为TO,CC或BCC。在这里,CC代表抄送和密件抄送代表黑碳复制。例如Message.RecipientType.TO
addresses: 这是电子邮件的ID的数组。需要使用 InternetAddress()方法,同时指定电子邮件ID。
下面是一个例子,从机器发送的HTML电子邮件。这里假设你的本地主机连接到互联网,并有足够的能力来发送电子邮件。同时要确保从Java电子邮件API包和CLASSPATH中可用JAF包ARA的所有jar文件。
这个例子非常相似,前一个,除了在这里我们使用的是使用setContent()方法来设置内容的第二个参数为“text / html类型”指定的HTML内容被包含在消息中。
通过这个例子,可以发送你喜欢HTML内容。
<%@ page import="java.io.*,java.util.*,javax.mail.*"%>
<%@ page import="javax.mail.internet.*,javax.activation.*"%>
<%@ page import="javax.servlet.http.*,javax.servlet.*" %>
<%
String result;
// Recipient's email ID needs to be mentioned.
String to = "abcd@gmail.com";
// Sender's email ID needs to be mentioned
String from = "mcmohd@gmail.com";
// Assuming you are sending email from localhost
String host = "localhost";
// Get system properties object
Properties properties = System.getProperties();
// Setup mail server
properties.setProperty("mail.smtp.host", host);
// Get the default Session object.
Session mailSession = Session.getDefaultInstance(properties);
try{
// Create a default MimeMessage object.
MimeMessage message = new MimeMessage(mailSession);
// Set From: header field of the header.
message.setFrom(new InternetAddress(from));
// Set To: header field of the header.
message.addRecipient(Message.RecipientType.TO,
new InternetAddress(to));
// Set Subject: header field
message.setSubject("This is the Subject Line!");
// Send the actual HTML message, as big as you like
message.setContent("<h1>This is actual message</h1>",
"text/html" );
// Send message
Transport.send(message);
result = "Sent message successfully....";
}catch (MessagingException mex) {
mex.printStackTrace();
result = "Error: unable to send message....";
}
%>
<html>
<head>
<title>Send HTML Email using JSP</title>
</head>
<body>
<center>
<h1>Send Email using JSP</h1>
</center>
<p align="center">
<%
out.println("Result: " + result + "n");
%>
</p>
</body>
</html>
现在,尝试使用上面的JSP在给定的电子邮件ID发送HTML格式的邮件。
下面是一个例子与附件从你的机器发送电子邮件:
<%@ page import="java.io.*,java.util.*,javax.mail.*"%>
<%@ page import="javax.mail.internet.*,javax.activation.*"%>
<%@ page import="javax.servlet.http.*,javax.servlet.*" %>
<%
String result;
// Recipient's email ID needs to be mentioned.
String to = "abcd@gmail.com";
// Sender's email ID needs to be mentioned
String from = "mcmohd@gmail.com";
// Assuming you are sending email from localhost
String host = "localhost";
// Get system properties object
Properties properties = System.getProperties();
// Setup mail server
properties.setProperty("mail.smtp.host", host);
// Get the default Session object.
Session mailSession = Session.getDefaultInstance(properties);
try{
// Create a default MimeMessage object.
MimeMessage message = new MimeMessage(mailSession);
// Set From: header field of the header.
message.setFrom(new InternetAddress(from));
// Set To: header field of the header.
message.addRecipient(Message.RecipientType.TO,
new InternetAddress(to));
// Set Subject: header field
message.setSubject("This is the Subject Line!");
// Create the message part
BodyPart messageBodyPart = new MimeBodyPart();
// Fill the message
messageBodyPart.setText("This is message body");
// Create a multipar message
Multipart multipart = new MimeMultipart();
// Set text message part
multipart.addBodyPart(messageBodyPart);
// Part two is attachment
messageBodyPart = new MimeBodyPart();
String filename = "file.txt";
DataSource source = new FileDataSource(filename);
messageBodyPart.setDataHandler(new DataHandler(source));
messageBodyPart.setFileName(filename);
multipart.addBodyPart(messageBodyPart);
// Send the complete message parts
message.setContent(multipart );
// Send message
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 Attachement Email using JSP</title>
</head>
<body>
<center>
<h1>Send Attachement Email using JSP</h1>
</center>
<p align="center">
<%
out.println("Result: " + result + "n");
%>
</p>
</body>
</html>
现在试着上面的JSP运行到一个文件作为附件发送以及在给定的电子邮件ID的消息。
如果需要提供用户ID和密码的电子邮件服务器进行身份验证的目的,那么你可以按如下方法设置这些属性:
props.setProperty("mail.user", "myuser");
props.setProperty("mail.password", "mypwd");
邮件发送机制的其余部分将继续如上面所述。
您可以使用HTML表单接受电子邮件参数,然后你可以使用request对象如下,让所有的信息:
String to = request.getParameter("to");
String from = request.getParameter("from");
String subject = request.getParameter("subject");
String messageText = request.getParameter("body");
一旦你把所有的信息设置完成,就可以使用上面提到的程序来发送电子邮件。