86 lines
2.5 KiB
Java
86 lines
2.5 KiB
Java
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Accessing a java mail session from a servlet
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package com.ack.web.servlet;
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import java.io.IOException;
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import java.io.PrintWriter;
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import javax.mail.Message;
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import javax.mail.Session;
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import javax.mail.Transport;
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import javax.mail.internet.InternetAddress;
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import javax.mail.internet.MimeMessage;
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import javax.naming.Context;
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import javax.naming.InitialContext;
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import javax.servlet.ServletException;
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import javax.servlet.http.HttpServlet;
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import javax.servlet.http.HttpServletRequest;
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import javax.servlet.http.HttpServletResponse;
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/**
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* configure a resource reference within the web.xml file
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* that is a container managed javamail session object
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*
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<web-app>
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...
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<resource-ref>
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<description>smtp mail out</description>
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<res-ref-name>mail/smtp</res-ref-name>
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<res-type>javax.mail.Session</res-type>
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<res-auth>CONTAINER</res-auth>
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</resource-ref>
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</web-app>
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*
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* and use your vendor specific xml file to map the
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* resource name to the jndi name, eg for weblogic
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*
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<weblogic-web-app>
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...
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<reference-descriptor>
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<resource-description>
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<res-ref-name>mail/smtp</res-ref-name>
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<jndi-name>mail/dailyplanet</jndi-name>
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</resource-description>
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...
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</reference-descriptor>
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</weblogic-web-app>
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*
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*
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*/
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public class AccessingAJavaMailSessionFromAServlet extends HttpServlet {
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public void doGet( HttpServletRequest req, HttpServletResponse res )
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throws ServletException, IOException {
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res.setContentType( "text/html" );
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PrintWriter pw = res.getWriter();
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try {
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// get hold of the JavaMail session
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Context ctx = new InitialContext();
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Session mailSession = (Session) ctx.lookup( "java:comp/env/mail/smtp" );
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// create a message
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Message msg = new MimeMessage( mailSession );
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msg.setSubject( "a servlet test email" );
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msg.setSentDate( new java.util.Date( System.currentTimeMillis() ) );
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msg.setText( "<h1>Hello You</h1>" );
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msg.addHeader( "Content-Type", "text/html" );
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msg.setFrom( new InternetAddress( "x@xxx" ) );
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msg.setRecipient( Message.RecipientType.TO,
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new InternetAddress( "cleve" ) );
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// send it
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Transport.send( msg );
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// and provide feedback to the use
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pw.println( "message sent!" );
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}
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catch( Exception ex ) {
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// if we get a problem, log it
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log( "problem sending message", ex );
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// and send an error back to the client
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res.sendError( res.SC_INTERNAL_SERVER_ERROR, ex.getMessage() );
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}
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}
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}
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