Tomcat JavaMail Support and conflict--tomcat create a mail delivery environment object Session__java

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Program Examples:

(1) First in the application under the Webroot/meta-inf directory to create a file named Context.xml (name can not be changed)

<Context>
  <resource name= "Mail/dog" auth= "
            Container" type= "Javax.mail.Session" Mail.smtp.host= "smtp.163.com" mail.smtp.auth= "true"
            mail.transport.protocol= "smtp"
            />
</ Context>

As shown in figure:

(2) Copy the Mail.jar package (mail development-related JAR file) to the Apache Software foundation\tomcat 6.0\lib directory.

Note: Do not copy the Mail.jar package to the Lib directory of the Application project, otherwise the execution of the following sentence will be thrown java.lang.ClassCastException

    Session Sessions = (session) envctx.lookup ("Mail/dog");

(3) Write mail sending program code in servlet

Package edu.servlet.mail;
Import Java.io.FileInputStream;
Import java.io.IOException;

Import Java.io.PrintWriter;
Import Javax.mail.Message;
Import javax.mail.Session;
Import Javax.mail.Transport;
Import javax.mail.internet.InternetAddress;
Import Javax.mail.internet.MimeMessage;
Import javax.mail.internet.MimeUtility;
Import Javax.naming.Context;
Import Javax.naming.InitialContext;
Import javax.servlet.ServletException;
Import Javax.servlet.http.HttpServlet;
Import Javax.servlet.http.HttpServletRequest;

Import Javax.servlet.http.HttpServletResponse; public class Mailjndiservlet extends HttpServlet {    public void doget (HttpServletRequest request, HttpS Ervletresponse response)             throws servletexception, IOException {        try{         
  Context Initctx = new InitialContext ();           //TOMCAT the created environment container in the initialization container, you need to find           by "java:comp/env" (fixed)
  Context Envctx = (context) initctx.lookup ("java:comp/env");           //Find the Session object through "Mail/dog" in the Environment parameter container   
         Session Sessions = (session) envctx.lookup ("Mail/dog");                       /*             * validation here Tomcat class loader (Envctx.lookup ("Mail /dog ")) differs from the application's class loader (session)             * But here do not know why is the same result, ordinarily is not the same, anyway is not very important             * are Org.apache.catalina.loader.StandardClassLoader              *            SyStem.out.println (Envctx.lookup ("Mail/dog"). GetClass (). getClassLoader (). GetClass (). GetName ());            System.out.println (Session.class.getClassLoader ().
GetClass (). GetName ());           //Set debug way to print execution       
     Session.setdebug (TRUE);
        //Create a Message object that represents the content of your messages.           Message msg = new MimeMessage (session,new fileinputstream ("C:\\Documents
and settings\\administrator\\ Desktop \\SendMultipartMessageDemo3.eml "));                       Transport transport =
Session.gettransport ();
          transport.connect ("smtp.163.com", "xh216319", "Xiaoxiao");           transport.sendmessage (msg, internetaddress.parse (             Mimeutility.encodetext ("Itstar") + "<ITSTAR1965@SINA.COM>," +
Mimeutility.encodetext ("Xiao Hua") + "<xh216319@163.com>");
          response.getwriter (). Print ("ok!");         }catch (Exception e) {          &
nbsp         }finally{                      }    &nbsp}     public void DoPost (HttpServletRequest request , httpservletresponse response)             throws servletexception,

 IOException {         doget (request, response);     }}

Related notes:

(1) JavaMail support and conflict in Tomcat