New to J2EE and web development in java

Hi folks,
I have been developing desktop app in C# for the past two years. But now I am taking my masters and I am learning in Java. I am also interested in J2EE and wanted to develop web apps in Java. The problem is, I am very much confused with the tools, classes and etc Java uses. For example people say to me, you have to know Struts, Spring, JSP, Ant, Tomcat, Apache Tomcat, Hibernate, and etc. I tried to search every one of those and got some clue but not that much detail and now I am really confused.
Before I go to coding (which is my interest), I wanted to know what tools to know and why and how they are used, at least the basics. Once I get some idea, I will keep on searching by myself. Can any body please tell me or give me a link of what tools I have to start with as a begineer web developer? Can any body give me a brief description about them?I downloaded Eclipse and I am almost familier on how to use it and I also write some code on it. These days, I downloaded J2EE, Struts, and Hibernate but I dont know how to use them and where to use them. No clue. Help me guys.
Thank you.

Step 1 : Download "Eclipse IDE for Java EE Developers". You don't need anything else in terms of tools at the start.
Step 2 : Get solid experience in basic Java development. Make sure you are very comfortable with the language and core API classes such as I/O, collections, etc. Do this in a basic Java project in Eclipse.
Step 3 : Learn JSP and Servlets. These two technologies are the foundation of Java EE web app development. Use "Dynamic Web Project" in Eclipse and Tomcat as your server. For a good exercise, build a web app to manage a catalog of something by reading/writing to a text file local to the server.
Step 4 : Learn JPA. This is the standard for modern Java database access. Make sure you learn JPA standard rather than a specific implementation like Hibernate. In fact, since you are asking on an Oracle site, I would recommend EclipseLink implementation of JPA rather than Hibernate. For an exercise take your app from Step 3 and make it use a database instead of a file. Use MySQL as your database.
By the time you get this far you will have a good foundational knowledge of Java EE web development. Where you go from here will depend on your interests. If you are more interested in the web tier, you can learn some of the higher-level front-end technologies such as JSF or Struts that make it easier to build very large apps. If your interests are more in middle tier and scalability, start learning EJBs. Don't bother learning Ant or Maven unless your interests are specifically in build systems and release engineering. You don't need to know Ant/Maven to build/run/export Java EE applications in Eclipse.
Good luck!
- Konstantin

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New to J2EE and SUN development tools

Greetings:
I'm confused. I recently purchased the book "Enterprise J2ME" where the first sample app (iFeedBack) requires a J2EE-compliant server. Regarding deployment of this application, the Java Web Services Developer Pack engine is also mentioned. Here is the text regarding the iFeedBack app that I want to build and deploy:
page 35
"The application download package has three subdirectories, each containing an application component. You can ust the ANT build.xml script in each directory to build and deploy the component.
Directory surveyserver contains a sample survey server application. After running ANT, a file bin/iFeedBackSurvey.ear is generated. It can be deployed to any J2EE-compliant server (J2EE v1.3 RI is tested). If this is the first time you deploy it, you need to run the sql/Init.sql script against your default database.
Directory singlesignon contains an example single sign-on toke service. Currently, all usernames and passwords are hardcoded into the source code for simplicity. Obviously, in real-world development, it must be hooked up with campus identity databases. File deployable.war is produced by the ANT script and can be deployed to the Java Web Services Developer Pack v. 1.0 engine."
My question is this: I thought I could download the Sun Studio Creator to get the Sun App Server to run the server portion of this code on my Mac OS X environment. But then the text above also refers to the JWSDP engine. So what tools do I really need and what are the distinctions and how do the following tools RELATE to each other?:
- Sun Java Studio Standard 5 update 1
- Java Web Services Developer Pack 1.5
- Sun Java System Application Server
Am I correct in assuming that the Sun Java Studio contains both the Application Server as well as the JWSDP? Also, what is the difference between Sun Java Studio Creator and the Sun Java Studio Standard?
Also, the source code for the iFeedBack app (which won a $20,000 award) is available at http://www.enterprisej2me.com/pages/enterprisej2me/book.php
I am working through SUN's The J2EE Tutorial and trying to gather the tools necessary to run the tutorial code on my Mac.
Thanks for the guidance,
Alex

Creator is a drag-and-drop IDE for creating web applications (servlets, JSP, JSF). Studio Standard/Enterprise is a traditional general purpose IDE. Both Creator and Standard/Enterprise are built on NetBeans, the open source IDE.
The Java Web Services Developer Pack is a distribution for creating web service-enabled web applications, and is built on Apache Tomcat. The technologies included in the JWSDP are also included in the J2EE SDK/Application Server 8/8.1 PE. The J2EE SDK/Application Server 8 is a full J2EE 1.4 server. Some versions of Studio 5 are bundled with Application Server 7 PE, a J2EE 1.3 server. I don't believe the JWSDP is bundled with Studio 5.
Application Server 8 PE is bundled with Creator.
If you are doing enterprise development, look into NetBeans 4.1 EA, which has a plugin for Application Server 8/8.1 PE and templates for web applications and session enterprise beans.
-Ian Evans

Where is ias903 j2ee and web cache distribution for NT?

http://otn.oracle.com/software/products/ias/devuse.html
gives option 4
NT - 324 MB
Oracle9iAS J2EE and Web Cache
- Oracle HTTP Server
- Oracle9iAS Containers for J2EE
- Oracle9iAS Web Cache
- Oracle Enterprise Manager
- New! v9.0.3 Linux , Solaris , HP-UX , HP Tru64
- NT/2000
Clicking at NT/2000 points me to 9ias90201_core.zip.
So where is the 903 distribution? Why is it Sun Solaris?!
Oracle9iAS Release 2 downloads for Sun SPARC Solaris
On this page you will find:
Oracle9iAS J2EE and Web Cache:
- v9.0.3
- v9.0.2.0.1
Oracle9iAS Enterprise Edition
Oracle9iAS Supplemental CD's
Other Utilities
Oracle9iAS J2EE and Web Cache Release 2 v9.0.3
9ias90201_core.zip - (340,044,344 bytes)
This is a lightweight version of Oracle9iAS v2. It consists of the following components:
-Oracle HTTP Server
-Oracle9iAS Web Cache
-Oracle9iAS Containers for J2EE (OC4J)

Hi Ken --
We are just about wrapped up with our Oracle9iAS Release 2 (9.0.3) version for Windows NT. As you've seen, we have released the 903 version for a number of Unix platforms (Solaris, HP-UX, HP-Tru64, Linux) already and the Windows platform will follow shortly.
For the moment, if you're running on Windows and want to use the J2EE 1.3 functionality, you can download the pure Java OC4J 903 distribution available from OTN. This is the same set of Java code that is the 9iAS distribution.
cheers
-steve-
http://otn.oracle.com/software/products/ias/devuse.html
gives option 4
NT - 324 MB
Oracle9iAS J2EE and Web Cache
- Oracle HTTP Server
- Oracle9iAS Containers for J2EE
- Oracle9iAS Web Cache
- Oracle Enterprise Manager
- New! v9.0.3 Linux , Solaris , HP-UX , HP Tru64
- NT/2000
Clicking at NT/2000 points me to 9ias90201_core.zip.
So where is the 903 distribution? Why is it Sun Solaris?!
Oracle9iAS Release 2 downloads for Sun SPARC Solaris
On this page you will find:
Oracle9iAS J2EE and Web Cache:
- v9.0.3
- v9.0.2.0.1
Oracle9iAS Enterprise Edition
Oracle9iAS Supplemental CD's
Other Utilities
Oracle9iAS J2EE and Web Cache Release 2 v9.0.3
9ias90201_core.zip - (340,044,344 bytes)
This is a lightweight version of Oracle9iAS v2. It consists of the following components:
-Oracle HTTP Server
-Oracle9iAS Web Cache
-Oracle9iAS Containers for J2EE (OC4J)

Oracle9iAS J2EE and Web Cache

Hi!
I'm using Oracle9iAS J2EE and Web Cache on my Sun Solaris 5.8 and when I try to Log on to Oracle Enterprise Manager on port 1810 from my Windows 2000 browser I have this error:
Servlet error: Renderer failed:
java.lang.NoClassDefFoundError
To correct I must do this:
$emctl stop
$emctl start
After that I'm able to log on to OEM but if I do some modifications or wait too long I will received the same error again:
Servlet error: Renderer failed:
java.lang.NoClassDefFoundError
Can you tell me what is the problem ?
Thank's

Do you have the DISPLAY environment variable set correctly? This error is typically seen if the EM Website is unable to connect to an X-Server.

Problem installing Adobe Creative Suite 6 and Web Developer

Will Adobe Bridge and Media Encoder be installed even though they are not listed in the options window during the installation process? I have the Adobe Creative Suite 6 and Web Developer Software disk.

Yes.
Adobe Bridge is a companion application installed alongside software such as Photoshop and Illustrator
http://www.adobe.com/products/bridge/buying-guide.html
Media Encoder is installed alongside Premiere Pro and After Effects.

I'm new to j2ee and need to make a project

Hi everyone,
I'm TOTALLY new to j2ee(but not to java).
My profesor told me to write a wep aplication with use of jsp:
1. You register to the page
2. You login to the page
3. You go to the page you chose a topic of a report
4. Your chice is rememberd. You are given a deadline to send the report.
5. If you have the report you login/go to the send_report site
6. You choose the directory on you pc and press send button
7. The report(.pdf) is now stored on the server
8. If you haven't yet crossed the deadline you can still update the report file(even if it's name is different)
8. Now if you have crossed the deadline on the send_report page you have message informing that you have already send the report.
My Prof. also told me I can (don't have to) use jetty server instead of tomcat. I can also use SpringFramework.
I also have to use j4log.
It would be great if some of You could give me some help with that. What and in which order should I read(books, articles, tutorials) to learn most effectively. I have time till the end of January to finish the project.
Thanx to ALL!

Hi everyone,
I'm TOTALLY new to j2ee(but not to java).
My profesor told me to write a wep aplication with
use of jsp:
1. You register to the page
2. You login to the pageYou can probably store and maintain all these values in a SQL DB. To access it, you can use JDBC. You may want to write a utility class that will do the actual query execution and for example, will return an object [ ] [ ] with the results of a select query. Then you could just see if the username & password matches one of the entries.
You can get the values using request.getParameter("my_form_elementname");
3. You go to the page you chose a topic of a report
4. Your chice is rememberd. You are given a deadline
to send the report.You can set attributes in the session if you want the values to be accessed on other pages. session.getAttribute() will then return the value later. (but the values are lost when the current window is closed)
5. If you have the report you login/go to the
send_report site
6. You choose the directory on you pc and press send
buttonThey've made step 6 quite easy for you! It's just simple html:
<input type='file' size = 75 name='my_fileinput'/>
The size should be long enough for filename to fit.
7. The report(.pdf) is now stored on the server
8. If you haven't yet crossed the deadline you can
still update the report file(even if it's name is
different)
8. Now if you have crossed the deadline on the
send_report page you have message informing that you
have already send the report.The implementation is up to you, but I'm thinking you can have a unique directory for each user. In that directory you could have a props file with the name & deadline for each report [of course you want to make sure this is hidden from public access by putting it in the WEB-INF folder.
>
My Prof. also told me I can (don't have to) use jetty> server instead of tomcat. I can also use> SpringFramework.> > I also have to use j4log. Ah...the joys of configuring log4j. You want to make sure the log4j.xml file specifiying what to log & where is in your source folder (and copied over to the classes folder during compilation). That's why I couldn't get it working for a while. Also, if you don't want everything cluttering up a single log file, make sure that you setAdditivity(false) on everything except your root logger.> > It would be great if some of You could give me some> help with that. What and in which order should I> read(books, articles, tutorials) to learn most> effectively. I have time till the end of January to> finish the project.Whew! As you can see, java, tomcat, jsp's, even just html, there's a TON of stuff out there. Here's what I would recommend:1)Deitel & Deitels' book "Java how to Program" 6th edition. The latest edition has what you need to know about using JDBC (for databases), and JSP's & servlets(including setting up tomcat).2)I would say forget about jetty/spring framework, they're not as widely used as tomcat, and what you learn working with tomcat is far more practical. It's not hard to set up. You can download either tomcat 4.1 or tomcat 5 (which is needed for some of the newer java stuff) from the tomcat site: http://tomcat.apache.org/ Configuration is not all that hard, about the most you'll have to do is change some of the ports you connect on. 3)There are plenty of resources out there on working with jsp's, sql databases, and if you have any more specific questions, you can always post them here!> > Thanx to ALL!Hope this was useful!

JavaFX and Web Development

I am new to JavaFX,I am in search of a new web development tool in java which can increase the GUI appearance like Flex.I want to know whether JavaFX can be integrated in the web development using JSP.More over my aim is of developing an Enterprise Monitoring Software.Actually the web interface is used to display the details send by the monitoring agent from different client machines.So i need diffrent types of components like Tree control,Listcontrol,Movie control etc to be integrated in the interface.These components should display the data coming from either the network or from database.So I like to know whether JavaFX can be applicable to my project.
Looking Forward to get a reply as soon as possible

To deploy a javafx application and embedd it in a html page see:
http://javafx.com/docs/tutorials/deployment/configure-for-deploy.jsp#browsermodel
and here is a more concrete example:
http://javafx.com/docs/articles/media/playerSimple.jsp
Hope that answeres your question...
- Emil H

SSO problem between EP 6 SP9 on Web AS 6.4 JAVA and WebAS 6.3 JAVA.

We have Portal EP 6 SP9 running on Windows 2003 and IIS version 6.
Also implemmnted NTLM to get to the Portal from desktop.
Every thing works fine.
I have also setup SSO between Portal EP 6 SP9 and SAP R/3 4.7, SAP BW 3.3. Every thing works just fine.
We also have product called xEM which runs on webAs 6.30.
SSO is not working between EP 6 SP9 which runs on WebAS 640 Java & xEM which runs on WebAS 6.30 JAVA.
I tried options and changed logon module stack fo ticket and it did not help.
I imported certificate from Portal to webAS 6.3 where xEM is running. Used option load from ticketstore in the admin tool.
Previous to this we have SSO setup between EP 6 SP2 running on WebAS 6.2 JAVA & xEM running on WebAS 6.3 and it just worked fine.
Only change is the new Portal EP 6 SP9 running on WebAS 64.0 JAVA only.
Please help me.

Hmm interesting problem. Have you tried increasing the logging level on the 6.30 WebAS server so you can get more detailed info on what the issue might be?
If so, can you post some of it?

Why Netweaver vs. custom SAP and Web development

I have been reviewing Netweaver as well as SAP's Manufacturing Execution (ME) to determine whether we want to implement this functionality. I understand that Netweaver provides a standard platform for a company's custom development but my question is Why invest time and money in Netweaver when I can develop custom Z-code and Web code without it? What is the benefit to Netweaver?
Thanks,
Robert Quinn

Hello Robert
yes, of course you can develop you own zcode and web/java code without using SAP netweaver platform or nwds(sap netweaver developer studio).
But with SAP netweaver, you can make full use of the available functionalities, and the development will be faster.
more important, you can achieve a seamless integration of different product line, such SAP ERP and SAP ME.
Best Regards,
Thunder

J2EE and Web Services

Hi forummates,
In the traditional architecture, the communication between EJB is RMI/IIOP. Web Services can be looked as a communication between classes on SOAP/HTTP.
How should we use Web Services in J2EE in the maximum effeciency? Is there any good example of using Web Services in J2EE (1.4 is a must?) ? Please advise.
Lawrence.

Hi Lawrence,
I would look at the J2EE blueprints on web services to get started. You may also want to take a look at the J2EE tutorial and web services tutorial. Links below:
http://java.sun.com/blueprints/guidelines/designing_webservices/
http://java.sun.com/j2ee/1.4/docs/tutorial/doc/index.html
http://java.sun.com/webservices/docs/ea1/tutorial/

Deploy differences between 904 standalone and 903 J2EE and Web cache versio

I am trying to port an application from jboss (3.0.3) to OAS 9iAS rel2. Since the application uses local interfaces in the EJBs, I am using the pre-release versions of OAS. My development environment also include ant and xdoclet. I am not using JDeveloper or TopLink and would prefer not to due to the different targets we are using.
I have successfully portet to the 9.0.4 OC4J (standalone) version. In doing so I have collected all my EJB-class files in one jar, appName-ejb.jar, which along with the war-file and META-INF files go in the ear-file. Attempting to deploy this ear-file directly in 9.0.3 "J2EE and Webcache" version gives me the following error message in the Oracle Enterprise Manager Console: "Deployment failed: Nested exception Root Cause: Syntax error in source. Syntax error in source"
The how-to:Implement Local Interface (cmplocal) also use a single jar-file, cmplocal-ejb.jar. The description is targeted toward OC4J standalone. I have not attempted to deploy this ear-file in the "j2ee and webcache" version.
The Petstore demo ear-file (ref: "O9iAS Containers for J2EE User's Guide (9.0.3)") has all its beans in separate jar-files and deploys without any problems. The documentation also indicate that all beans has to be in separate jar-files in the root of the ear-file i.e this is a requirement. Do I understand the documentation correctly?
Why the difference between the standalone version and the next version? Does not the possibility having to maintain a a large number of bean-jar-files in the root of the ear-file make development/deployment much more difficult than necessary?
Does there exist any batch-workarounds?
Dag

I am trying to port an application from jboss (3.0.3) to OAS 9iAS rel2. Since the application uses local interfaces in the EJBs, I am using the pre-release versions of OAS. My development environment also include ant and xdoclet. I am not using JDeveloper or TopLink and would prefer not to due to the different targets we are using.
I have successfully portet to the 9.0.4 OC4J (standalone) version. In doing so I have collected all my EJB-class files in one jar, appName-ejb.jar, which along with the war-file and META-INF files go in the ear-file. Attempting to deploy this ear-file directly in 9.0.3 "J2EE and Webcache" version gives me the following error message in the Oracle Enterprise Manager Console: "Deployment failed: Nested exception Root Cause: Syntax error in source. Syntax error in source"
The how-to:Implement Local Interface (cmplocal) also use a single jar-file, cmplocal-ejb.jar. The description is targeted toward OC4J standalone. I have not attempted to deploy this ear-file in the "j2ee and webcache" version.
The Petstore demo ear-file (ref: "O9iAS Containers for J2EE User's Guide (9.0.3)") has all its beans in separate jar-files and deploys without any problems. The documentation also indicate that all beans has to be in separate jar-files in the root of the ear-file i.e this is a requirement. Do I understand the documentation correctly?
Why the difference between the standalone version and the next version? Does not the possibility having to maintain a a large number of bean-jar-files in the root of the ear-file make development/deployment much more difficult than necessary?
Does there exist any batch-workarounds?
Dag

Creating A New Oracle Database And Sql Developer

Hi,
I'm a newbie to Oracle and and a not so newbie to Sql Server and Visual Studio.
I am trying to learn Oracle on my local machine. I want to create a new Oracle Database and start learning from there.
I have downloaded sql developer, the data modeler, and the Oracle Client. Could someone please provide some guidance on how to create a Oracle Database?
From the responses, it appears that none of the items I mentioned actually creates a database. Sql Server provides a free download, also a developer version for a minimal fee. What specific Oracle product would be best to provide this type of service?
Thanks,
Mark
Edited by: user8948230 on Jan 7, 2010 9:50 AM

user8948230 wrote:
Hi,
I'm a newbie to Oracle and and a not so newbie to Sql Server and Visual Studio.
I am trying to learn Oracle on my local machine. I want to create a new Oracle Database and start learning from there.
I have downloaded sql developer, the data modeler, and the Oracle Client. Could someone please provide some guidance on how to create a Oracle Database?
From the responses, it appears that none of the items I mentioned actually creates a database. Sql Server provides a free download, also a developer version for a minimal fee. What specific Oracle product would be best to provide this type of service?
Thanks,
Mark
Edited by: user8948230 on Jan 7, 2010 9:50 AMIn addition to downloading and installing the database software to create a database, might I also suggest you start getting familiar with the documentation.
Learning where to look things up in the documentation is time well spent investing in your career. To that end, you should drop everything else you are doing and do the following:
Go to tahiti.oracle.com. Drill down to your product and version.
Spend a few minutes just getting familiar with what is available here. Take special note of the "books" and "search" tabs. Under the "books" tab you will find the complete documentation library.
Spend a few minutes just getting familiar with what kind of documentation is available there by simply browsing the titles under the "Books" tab.
Open the Reference Manual and spend a few minutes looking through the table of contents to get familiar with what kind of information is available there.
Do the same with the SQL Reference Manual.
Do the same with the Utilities manual.
You don't have to read the above in depth. They are reference manuals. Just get familiar with what is there to be referenced. Ninety percent of the questions asked on this forum can be answered in less than 5 minutes by simply searching one of the above manuals.
After you have familiarized yourself with what is available, read the "2-Day DBA" manual to help get you started.
Then set yourself a plan to dig deeper.
- Read a chapter a day from the Concepts Manual.
- Look in your alert log and find all the non-default initialization parms listed at instance startup. Then read up on each one of them in the Reference Manual.
- Take a look at your listener.ora, tnsnames.ora, and sqlnet.ora files. Go to the Network Administrators manual and read up on everything you see in those files.
- When you have finished reading the Concepts Manual, do it again.
Give a man a fish and he eats for a day. Teach a man to fish and he eats for a lifetime.

New Talk, Text and Web prepaid plan question

Evening! I have a reeeally old Verizon prepaid (FreeUp) account, and an old Verizon Motorola E18 phone.
I also have a current balance of $271.00 If I upgrade to a new phone and the new $50. Talk, Text, and Web monthly prepaid, will I lose my current balance, or will it transfer to my new plan?
thanks!
ssandee

As longas you keep your same phone number the balance will be transferred over. Thats the way it is with the Daily Prepaid and also is you transfer over to a contract they will carry the money over on the contract as a credit. No refunds. You can call customer service to veriify this at 1-888-294-6804

Oracle forms and web developer server??

I downloaded web developer server, such as an Eclipse IDE with all, Spring, Struts, Hibernate... but I think this is not for Oracle Forms, isn'it? I'm very newbie, but I would like to install all the things I need.
Thank you.
I'm using Oracle 11g, with suse 11.1. On the other way, I also have windows XP with oracle weblogic server.

Hi,
You can download oracle forms from here.
-Arun

Free - J2EE and Web Services Workshops by Oracle and TheServerSide

Oracle and TheServerSide are pleased to invite you to a free SOA developer workshop. This one-day event includes technical sessions, an install fest, hands-on labs, and a hacker's contest. (Attendees must bring their own laptops to participate in the labs and contest.) Topics will include:
* Overview of Service Oriented Architectures (SOA)
Discover what it means to move to SOA and learn about key SOA technologies, including J2EE 1.4, Web Services, BPEL, EJB, JSP, and Struts.
* Constructing the Services Layer
Develop back-end business services using the latest J2EE technologies.
* From Web Services to Business Processes
Learn about key J2EE 1.4 technologies used to implement Web services, and find out how to build Web services-based business processes using the industry standard Business Process Execution Language (BPEL).
* User Interfaces for SOA
Use Struts and design patterns to bind business services to user interfaces.
The hands-on labs take developers through the different stages of building an SOA based application. Developers must bring their own laptop to participate in the workshop, and they will get CDs with the software they need to develop and run the labs.
Hackers Event - Social and Coding Competition
Following the workshop, attendees will be treated to free pizza and beer and will have the opportunity to compete for additional prizes. Experts from TheServerSide will join the session to discuss SOA best practices.
Oracle Developer Days are free, but space is limited, so register now.
Locations, Dates, and registration at:
http://www.oracle.com/go/?&Src=1587968&Act=43
Here is what some developers had to say about the events that ran last year:
http://otn.oracle.com/events/otnworkshop/testimonials.html

Here are the cities and dates for this developer roadshow. The workshops in Redwood Shores and New York are almost full, the others have more seats available, so check out http://otn.oracle.com/odd and register soon.
Redwood Shores, CA - 4 Aug
New York, NY - 10 Aug
Dallas, TX - 12 Aug
Dearnborn, MI - 17 Aug
Miami, FL - 19 Aug
Denver, CO - 24 Aug
Atlanta, GA - 26 Aug

New to J2EE and web development in java

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