My web application uses JavaMail to attach and send a file that the user specifies, but my application can't find the file.

The shared JVM has the JavaMail libraries in the CLASSPATH. If you have a private JVM, you can include the appropriate .jar files in your private JVM. The JavaMail APIs are included with Jakarta Tomcat 4 and Tomcat 5. Note: the application should be using localhost to connect with it.

We do not currently support JSP pages as they can be resource hungry and are not viable in a shared hosting environment. We usually recommend that customers wanting to use Java servlets go on their own dedicated server for enhanced reliability and security for their Java environment. You can request a dedicated quote here.

Original question: Why should I use JSP when there is already servlet technology available for serving dynamic content?] While JSP may be great for serving up dynamic Web content and separating content from presentation, some may still wonder why servlets should be cast aside for JSP. The utility of servlets is not in question. They are excellent for server-side processing, and, with their significant installed base, are here to stay.

There are many example programs included in the JavaMail download package, including simple command line programs illustrating various aspects of the JavaMail API, a Swing-based GUI application, a simple servlet-based application, and a complete web application using JSP pages and a tag library.

Yes, JavaMail will work in applets in browsers that support the required JDK version. The Java Plug-in may be required to provide such support.

Short answer. Yes. Longer answer: In Gmail, access the SETTINGS link. Select FORWARDING AND POP. Select Enable POP for all mail (even mail that's... This is controlled by an option in the Control Panel. Find the Advanced tab of the Java feature under the Control Panel. Select "Show console" and it will... All Linux Devices | AntiOnline | Apache Today | ASPNews | CPU Planet | DatabaseJournal | DBASupport.

Author: Alex Chaffee (http://www.jguru.com/guru/viewbio.jsp?EID=3) Question originally posed by swati m (http://www.jguru.com/guru/viewbio.jsp?EID=64343 Applets run inside browsers, and servlets run inside servers. So broadly speaking, use applets when you need dynamism on the client side, and use servlets when you need dynamism on the server side. Servlets can produce any HTML (or indeed, any file type), and therefore are much more versatile than applets.

best, you'll get a security exception. At worst, you'll make the servlet engine, or maybe the entire web server, quit. You don't really want to do that, huh? :-) You shouldn't have to. If your JDBC driver supports multiple connections, then the various createStatement methods will give you a thread-safe, reentrant, independent Statement that should work OK, even if other requests/threads are also accessing other Statements on the same Connection. Of course, crossing your fingers never hurts..

Actually, servlets/JSPs and EJB are complementary, not competing technologies: Servlets provide support for writing web based applications whereas EJBs provide support for writing transactional objects. In larger web systems that require scalability, servlet and JSP or XML/XSL technologies provide support for the front end (UI, client) code, where EJB provides support for the back end (database connection pooling, declaritive transactions, declaritive security, standardized parameterization..

Latest Answer: JSP vs Servlet1) Servlet is pure java codes, which is used to extend the web server by providing dyn... Latest Answer: Servlet tunneling means when one request from a servlet is passed to another servlet in order to ach...

The JavaMail APIs were not intended to help you implement a mail server. Nonetheless, some of the utility classes, such as the MIME message parsing classes, might be of use to you. In general you'll find that the JavaMail API errs on the side of "simple" instead of "robust". That's appropriate for a mail client, but a mail server would likely make different tradeoffs. The JavaMail API does not include any facilities for adding, removing, or changing user accounts.

Servlets are server-side Java applications, as opposed to client-side applets or standalone applications. While servlets are compatible with many different types of servers, typically they are used in web servers, as a replacement for CGI scripts or Active-Server Pages (ASP). Java servlets offer many advantages over other forms of server-side processing.

The first difference is obviously that Servlets is the technology from Sun Microsystems and ISAPI is from Microsoft. Servlets run in the Servlet containers and may be in-process or out of process. ISAs run in the same address space as the HTTP server Servlet container preprocesses and postprocesses the data communication between the client and server.

JSP documents are ultimately compiled to servlets, which are multi-threaded by default and are assumed to be thread-safe. If the code in your JSP is not thread-safe, you can request the container uses a single threaded execution of the resulting servlet using the page directive <%@ page isThreadSafe="false" %>. JSP documents are compiled to servlets when they are placed in service and operate like standard servlets.

By default, servlets are multi-threaded. If you specifically require a single-threaded servlet, you should implement the javax.servlet.SingleThreadModel interface. This guarantees that no two threads will be operating on the same instance of the servlet, but still allows concurrent execution of the servlet. The servlet engine will maintain a pool of available threads, and create new instances of the servlet as required.

Yes, JAAS can be used as authentication technology for servlets. One important feature of JAAS is pure Java implementation. The JAAS infrastructure is divided into two main components: an authentication component and an authorization component. The JAAS authentication component provides the ability to reliably and securely determine who is currently executing Java code, regardless of whether the code is running as an application, an applet, a bean, or a servlet.

The servlet HttpSession interface is used to simulate the concept that a person's visit to a Web site is one continuous series of interactions. This is often the case, but the HTTP protocol is basically a request-response mechanism with no necessary connection between one request and the next.

This can be done with optional mod_rewrite module, a a rule-based rewriting engine to rewrite requested URLs on the fly. The idea is to rewrite incoming URL with different Servlet mount points in order to be able to distribute requests on different Apache JServ's. In the following sample, a random load-balancing is performed on 3 servlet engines (but mod_rewrite can make more for you).

The JavaMail API does not include any facilities for accessing an address book. There are no standards in this area; every mail server handles this differently. If you can figure out how your server does it, you might be able to find a Java API to access it. For example, if your server stores address books in LDAP, you could use the JNDI API to access it. The JavaMail API was designed to layer on top of existing email systems, using existing message formats.

Google offers the configuration options at http://mail.google.com/support/bin/answer.py?answer=13287. If your version of Exchange doesn't implmenet POP3 properly, you need to tell JavaMail to forget about TOP headers by setting the mail.pop3.forgettopheaders... JavaMail 1.4 adds get/setPreamble() methods to the MimeMultipart class. Some protocols like IMAP will not allow access to this text.

The JavaMail API is a set of abstract APIs that model a mail system. The API provides a platform independent and protocol independent framework to build Java technology based email client applications. The JavaMail API provides facilities for reading and sending email. Service providers implement particular protocols. Several service providers are included with the JavaMail API package; others are available separately.

A servlet session is created and stored on the server side. The servlet container keeps track of all the sessions it manages and fulfils servlet API requests to get HttpSessions, manipulate object data stored with them and trigger event callbacks. First, it is best to use a single servlet to handle each form submission. A single servlet for all input would be too complicated.

Make sure that HP Apache-based Web Server is using Apache JServ instead of Tomcat as the servlet engine. To enable JServ, uncomment the following line in wrapper.bin=$JAVA_HOME/bin/java wrapper.classpath=$JAVA_HOME/lib/tools.jar wrapper.classpath=$JAVA_HOME/lib/dt.jar wrapper.classpath=$JAVA_HOME/jre/lib/rt.jar ApJservHost JS1 ajpv12://js1.my.domain:8007 ApJservHost JS2 ajpv12://js2.my.domain:8007 ApJservHost JS3 ajpv12://js3.my.

Yes, you can! The complete separation between the web server and the server engine allows you to connect multiple servlet engines to the same web server. If these servlet engines are started in standalone mode using the wrapper with different UID/GID, you end up having multiple secured servlet environments. Of course, this requires a different JVM for each secured servlet environment.

Use the previous sample, and create a "watchdog program", that is able to delete an entry in the load_balancer.txt file. you are trying to connect directly to the port Apache JServ is listening on (usually 8007). Eg. the following is usually wrong: This is doesn't work because Apache JServ is not an HTTP server, but an AJP server (see Apache JServ Protocol for more information) and does not understand HTTP requests on that port.

Servlets extend the server-side functionality of a website. Servlets communicate with other application(s) on that server (or any other server) and perform tasks above and beyond the "normal" static HTML document. A servlet can receive a request to get some information through EJB from one or more databases, then convert this data into a static HTML/WML page for the client to see, for example.