要使用JSP发送电子邮件,请在CLASSPATH中安装JavaMail API和Java Activation Framework(JAF)。
<%@ 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 = "to@gmail.com"; String from = "from@gmail.com"; String host = "localhost"; Properties properties = System.getProperties(); properties.setProperty("mail.smtp.host", host); Session mailSession = Session.getDefaultInstance(properties); try{ MimeMessage message = new MimeMessage(mailSession); message.setFrom(new InternetAddress(from)); message.addRecipient(Message.RecipientType.TO,new InternetAddress(to)); message.setSubject("This is the Subject Line!"); message.setText("This is actual message"); Transport.send(message); result = "Sent message successfully...."; }catch (MessagingException mex) { mex.printStackTrace(); result = "Error: unable to send message...."; } %> <html> <body> <center> </center> <p align="center"> <% out.println("Result: " + result + "n"); %> </p> </body> </html>
要向多个收件人发送电子邮件,请使用以下方法。
void addRecipients(Message.RecipientType type, Address[] addresses) throws MessagingException
使用以下函数和参数发送HTML电子邮件。
message.setContent("<h1>This is actual message</h1>","text/html" );
完整的源代码
<%@ 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 = "to@gmail.com"; String from = "from@gmail.com"; String host = "localhost"; Properties properties = System.getProperties(); properties.setProperty("mail.smtp.host", host); Session mailSession = Session.getDefaultInstance(properties); try{ MimeMessage message = new MimeMessage(mailSession); message.setFrom(new InternetAddress(from)); message.addRecipient(Message.RecipientType.TO,new InternetAddress(to)); message.setSubject("This is the Subject Line!"); message.setContent("<h1>This is actual message</h1>","text/html" ); Transport.send(message); result = "Sent message successfully...."; }catch (MessagingException mex) { mex.printStackTrace(); result = "Error: unable to send message...."; } %> <html> <body> <p align="center"> <% out.println("Result: " + result + "n"); %> </p> </body> </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; String to = "to@gmail.com"; String from = "from@gmail.com"; String host = "localhost"; Properties properties = System.getProperties(); properties.setProperty("mail.smtp.host", host); Session mailSession = Session.getDefaultInstance(properties); try{ MimeMessage message = new MimeMessage(mailSession); message.setFrom(new InternetAddress(from)); message.addRecipient(Message.RecipientType.TO,new InternetAddress(to)); message.setSubject("This is the Subject Line!"); 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> <body> <% out.println("Result: " + result + "n"); %> </body> </html>
要向电子邮件服务器提供用户ID和密码,请在属性中设置用户名和密码,如下所示:
props.setProperty("mail.user", "myuser"); props.setProperty("mail.password", "mypwd");
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