I want to be a java web programmer

Hi
I'm not new to java desktop programming, but I haven't had a lot of experience and it was a few years ago now. But I am absolutely new to java web programming.
Anyway, I want to get a web programming job, and not only that I want to make a couple of websites myself.
Like ecommerce websites. Java web programming is so huge. There are so many frameworkds etc.
I thought if I make a functionally decent and pretty website, it would be a good reference of my work for future job opportunities.
The only thing is. With Java, I just don't know where to start.
Spring? I'm doing the tutorials in the netbeans IDE, but there is one for SPRING there is one for STRUTS, etc.
I just don't know? Do I need all this to make a website, or one of these? Do they do the same thing? Are they two different avenues to the same end result?
Where is a good introduction to making a functional server-side website in java?
Anyone here have any
Thanks
David.

My advice is: DON'T start with a framework. Much in the same way as you shouldn't start with an IDE when you learn core Java. The framework will hide too many details that you really must know if you ever want to make any headway into debugging a web application.
No, start with the very basics. Install Apache Tomcat 6 and build a simple application consisting of nothing but servlets and JSPs, where the JSPs are only used to build the view using JSTL. That alone will probably be a month-worth of research and trying out before you'll have grasped the concepts firmly. Only when you know how to configure, write and deploy such a simple web application and you have seen some debugging action, and only if you really understand every step of the way, should you start to look into using a framework.
I always post a link to this website and I'm going to do it again: read this free online book. Its one of the best I know on this very subject.
[core servlets 2nd edition|http://pdf.coreservlets.com]

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Dear
please help me.
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I don't think it's documented anywhere, but if you sign the jar, that message will go away.

Strongly recommend a good book for the java web programmer

book name: java for the web with servlets,jsp and EJB
publisher : New Riders
very suitable for beginners ~~~like me 0_O~~~~

Hello guys,
Glad to hear you guys pursuing certification. Upon finishing both books, I still felt like I needed to prepare in some other means. That was when I started taking practice exams online. Those helped a LOT! (I took around 10 exams) They really test you if you know the material... Here are a few links which might be of some help:
http://www.javaranch.com/maha/Preparation_tips/preparation_tips.html
http://www.javaranch.com/mock.jsp
http://www.javacert.com
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Ming
Developer Technical Support
www.sun.com/developers/support

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Thanks for the answer.
When I was doing ASP.NET development, I found these 2 books useful:
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http://www.amazon.co.uk/gp/product/1861008163/026-2514404-8364464?v=glance&n=266239
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Thanks,
T

I think I can answer your Q1
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Tomcat is capable of serving active content
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yabbanoname wrote:
See also https://discussions.apple.com/thread/4760961
Your answer isn't correct.
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Gentlemen,
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The following configurations:
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A few years ago when I was a Java programmer and was
developing apps for delivery with Java Web Start, I asked a similar
question. I didn't find a solution then, either. If you want to
display a SWF within a Java application, it would have to be done
through the Java media framework (I don't know its official name).
But that framework would have to be able to incorporate the Flash
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plugin or with the standalone player.
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'net - if it can be done, someone has done it.

Good exception handling policy for Java web application

I'm looking for a good exception handling policy for Java web application. First I found this Java exception handling best practices - How To Do In Java which says that you should never catch the Trowable class nor use e.printStackTrace();
Then I found this Oracle page The Message-Driven Bean Class - The Java EE 6 Tutorial, which does just that. So now I'm confused. Is there a good page online for an exception handling policy for Java EE Web applications? I have a hard time finding one. I've read that you should not catch the Exception class. I've been catching it previously to make sure that some unknown exception doesn't slip through early in the loop and stops all other customers from executing later on in the loop. We have a loop which runs once a minute implemented using the Quartz framework. Is it OK if you just change the implementation to catch the RuntimeException class instead of the Exception class? We're using Java 7 and the Jetty Servlet Container.

I'm looking for a good exception handling policy for Java web application.
If you have not done so I suggest you start by reviewing the several trails in The Java Tutorials.
Those trails cover both HOW to use exceptions and WHEN to use them.
This trail discusses the 'controversy' you mention regarding 'Unchecked Exceptions'
http://docs.oracle.com/javase/tutorial/essential/exceptions/runtime.html
Unchecked Exceptions — The Controversy
Because the Java programming language does not require methods to catch or to specify unchecked exceptions (RuntimeException, Error, and their subclasses), programmers may be tempted to write code that throws only unchecked exceptions or to make all their exception subclasses inherit from RuntimeException. Both of these shortcuts allow programmers to write code without bothering with compiler errors and without bothering to specify or to catch any exceptions. Although this may seem convenient to the programmer, it sidesteps the intent of the catch or specify requirement and can cause problems for others using your classes.
Why did the designers decide to force a method to specify all uncaught checked exceptions that can be thrown within its scope? Any Exception that can be thrown by a method is part of the method's public programming interface. Those who call a method must know about the exceptions that a method can throw so that they can decide what to do about them. These exceptions are as much a part of that method's programming interface as its parameters and return value.
The next question might be: "If it's so good to document a method's API, including the exceptions it can throw, why not specify runtime exceptions too?" Runtime exceptions represent problems that are the result of a programming problem, and as such, the API client code cannot reasonably be expected to recover from them or to handle them in any way. Such problems include arithmetic exceptions, such as dividing by zero; pointer exceptions, such as trying to access an object through a null reference; and indexing exceptions, such as attempting to access an array element through an index that is too large or too small.
Generally don't catch an exception unless you plan to HANDLE the exception. Logging, by itself is NOT handliing.
First I found this Java exception handling best practices - How To Do In Java which says that you should never catch the Trowable class nor use e.printStackTrace();
That article, like many, has some good advice and some poor or even bad advice. You get what you pay for!
I've read that you should not catch the Exception class.
Ok - but all that does is indicate that a problem of some sort happened somewhere. Not very useful info. Java goes to a lot of trouble to provide specific exceptions for specific problems.
I've been catching it previously to make sure that some unknown exception doesn't slip through early in the loop and stops all other customers from executing later on in the loop.
If the exception is 'unknown' then maybe it NEEDS to 'stop all other customers from executing later on in the loop'.
That is EXACTLY why you don't want to do that. You need to identify which exceptions should NOT stop processing and which ones should.
Some 'unknown' exceptions can NOT be recovered and indicate a serious problem, perhaps with the JVM itself. You can NOT just blindly keep executing and ignore them without risking data corruption and/or the integrity of the entire system Java is running on.
Is it OK if you just change the implementation to catch the RuntimeException class instead of the Exception class? We're using Java 7 and the Jetty Servlet Container.
No - not if you want a well-behaved system.
Don't catch exceptions unless you HANDLE/resolve them. There are times when it makes sense to log the exception (which does NOT handle it) and then raise it again so that it gets handled properly later. Yes - I know that is contrary to the advice given in that article but, IMHO, that article is wrong about that point.
If you have ever had to maintain/fix/support someone else's Java code you should already understand how difficult it can be to find WHERE a problem occurs and WHAT the exact problem is when exceptions are not handled properly.

Serverlets, JSP and Java Web Start

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Clarification:
J2EE has an additional E in it, while J2SE as an additional S.
Ok, now that we cleared that up, Lets see if I can answer your question.
There is no magic button such as 'java web start' that will automatically generate computer code for you. You have to write java line by line and debug each and every line of code. A typical whole project may consist up up to 1500 functions (mine has over 12000). You read whole books on the subject as I discuss below and work through thier examples. Within about 2 or 3 years of hard study, you should be a pretty good programmer.
Java is an object oriented language that you'll need to become familiar with that takes some practice to learn. Also, a java based web site consists of several technologies in addition to the java language that you'll need to be familiar with. Many programmers will read articles on the internet and pick up fragments of information on these various technologies and throw a web site together thats impossible to maintain and enhance. I think it would be better if you read whole books and experiment with the technologies. Consider it an at-come college course. Here is my suggested reading list read in roughly this order ( I suggest buying them one at a time via the internet (its cheaper) before moving onto the next book).
"Thinking In Java" - Bruce Eckel
HTML & XHTML: The Definitive Guide
JavaServer Pages - Hans Bergsten
Programming Jakarta Struts
JavaScript: The Definitive Guide
SAMs Teach Yourself SQL
JDBC and Java
Also, visit the Web Tools Platform (WTP) Project (www.eclipse.org/webtools) . Its a free Eclipse Java development tool that has the bulk of the java development IDE market (above even JBuilder).However, I suggest creating a few small java programs using the dos command line before you let this IDE do a lot of the work for you. You also might want to install some type of database (Oracle Lite, MySql, etc) on your computer so you have a database to play with (you'll need a computer with at least 2Gbytes of memory).

I want to be a java web programmer

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