What steps are necessary to get Eclipse and a Java servlet container integrated on Ubuntu 9.10? - eclipse

What's the easiest way for me to get Eclipse running with a Java servlet container on Ubuntu 9.10?
I've tried a number of things, hitting dead ends each time. The best setup would use Ubuntu packages as much as possible, not require running Eclipse as root, and be able to debug running servlets.
Dead ends so far include run-jetty-run, the Sysdeo Tomcat plugin, and Eclipse WTP with tomcat6.
A big part of the problem is that the Ubuntu tomcat6 installation is non-standard, splitting directories such that they're not all in TOMCAT_HOME. Eclipse is also non-standard, and the usual plugin installation methods don't work. I got close by installing the WTP through a PPA, but I stumbled when trying to get it to recognize tomcat.

Ubuntu recently includes a pretty full Eclipse package that you can install via Synaptic or such. But I prefer to download my own.
I download from the Eclipse download site. If I choose Eclipse IDE for Java EE Developers then I have server environments for all Web app containers already built in. If I set up one for Tomcat (in Eclipse), Eclipse will download and install Tomcat for me. It's quite convenient, although I sometimes have trouble finding Tomcat or its files. Eclipse squirrels them away somewhere.
The server setup menus become accessible to you once you create a Web project (not plain Java project).

You should "apt-get install sun-java6-jdk", download and use the Java EE version of Eclipse, and then create a dynamic web project. In the web project create a jsp page, and right click -> "Run -> Run on server" where you may then install a server connector.
Some connectors are included in Java EE, some must be downloaded. Choose the one corresponding to the server you have downloaded and unpacked, and point Eclipse to the directory.
If all succeedes, the JSP page should then show up in a browser served from the started server.

Related

Tomcat server not being recognized

I'm currently using Eclipse Mars on OS X to build a PHP based application which requires a web server for a form submission. However, upon attempting to add Tomcat 7.0 as a server, the server list is empty (shown below).
I've been following several tutorials for setting up and configuring a Tomcat server and each one says to place the extracted Tomcat folder in the Eclipse workspace directory so they'll be detected when adding them in Eclipse. The Apache Tomcat folder is in the workspace directory but it still isn't being detected. I've tried reinstalling Eclipse and deleting any duplicate files but I keep getting the same result. How can I properly set up and configure an Apache Tomcat server in Eclipse Mars?
You can tell it about the Tomcat installation using the Server Runtime Environments preference page.
If Tomcat isn't already a known server type, you might need to install a few more. The WTP FAQ has instructions.
All of those tutorials are wrong. You do want to download a copy of Tomcat from Apache so it has the expected layout when Eclipse looks for the jars needed to launch it, but there's no reason to actually put it in the workspace.
I am also using Eclipse neon and I faced the same problem and the answer was available in a question Apache Tomcat Not Showing in Eclipse Server Runtime Environments in the same site already posted
Of the Available Answers the below steps Worked for me:
1.Help-->Eclipse Marketplace
2.Type Tomcat in search box and choose the Option JST Server Adapters(Apache Tomcat,...) and click on Install
3.Then complete the Simple installation steps and after installation Eclipse prompts for a restart accept and then you can see the Target Run time updated with Tomcat server
Note:I am using Windows

Integrating JBOSS and Eclipse

I have JBOSS server. I used to make web applications using just notepad++. I used to create the necessary folders like web-inf and files like web.xml. For larger projects doing all this and manually compiling has become cumbersome. I want to use eclipse for that. I saw this tutorial - http://www.eclipse.org/webtools/community/tutorials/BuildJ2EEWebApp/BuildJ2EEWebApp.html . But I don't understand how to make a server. I already have a server. What I want to do is write JSPs and Servlets in eclipse and the build should automatically be deployed in jboss server.
How to to this?
Install JBoss Tools
After that follow the instructions from here to get started and deploy apps to JBoss Server.
To automatically deploy apps after the build you could use a build tool such as ANT or Maven.
I wrote a tutorial for this some time ago: Setting up web development environments with Eclipse
It shows how to setup JBoss within Eclipse (in addition, it also shows how to setup Tomcat and Weblogic), and also shows how to build a simple sample Servlet to verify the proper installation.
If you already use JBoss on the server side, then have a look at the client side as well: http://www.jboss.org/developer
(I haven't tried it myself, but...)
Just open eclipse then go to:
"Help-> Check For Updates" It will check for eclipse updates and installs new availables.
Now "Help -> Eclipse Market Place" Search for "Jboss tools" from search result select one(as your eclipse version) and install it. It will add adapter for new jboss versions.
Now add new server from server view select Jboss version then next add your Home directory of jboss. Then finish.
Step 1 is optional but it sometime it helps.

I am downloading Eclipse. But what else do I need to develop Java EE applications?

I am downloading this version of Eclipse. I want to know what else I should download and install before I can start working on Java EE applications.
Previously I used to work with NetBeans. Back then, I used to install these:
JRE
JDK
NetBeans
Tomcat
Then I could develop Java EE applications.
Is the same set of steps required when I download that Eclipse too? Or do some of the things come bundled with it? Please help me out with setting up the development environment.
Eclipse doesn't bundle JRE/JDK or app servers. Make sure you download "Eclipse IDE for Java EE Developers" package (as others will not have the plugins you need). You will need to download JDK and Tomcat separately. Note that there is no need to also download a JRE as JDK install has a JRE in it.
Note that Eclipse does have en embedded Jetty server that can be used for previewing your app without a separate app server, but most non-trivial apps still require downloading and installing the specific app server you intend to deploy in production on.
Take a look at the official website:
http://www.oracle.com/technetwork/indexes/downloads/index.html
I had installed my enviroment from these website and work properly, the server is up and running.
Tomcat is a software implementation, you need to install it separately. Take a look at the official tomcat's website at: http://tomcat.apache.org/
If you're working on a web site, my suggestions would be:
JRE/JDK, Apache Tomcat Application Server, Freemarker templating language (for page-building), Apache Web Server (for proxying, rewriting, mod_jk to load balance tomcat worker(s)), Varnish or Squid Cache, MySQL (to host UGC data (user generated content), and some kind of open source CMS system (Drupal or others) to host data that's web site editor created.

Tomcat issues inside eclipse

I am very new to Tomcat and web development in general and apologize for what may be a very silly question.
Consider 2 situations:
1.
I start Tomcat outside of Eclipse.
I use eclipse to create a war file.
I deploy it via admin console.
All is ok
2.
I start Tomcat via Eclipse
I can't access admin console
http://localhost:8080/manager/html greets me with 404 error
Same page is behaving properly when Tomcat is started outside of Eclipse
Please advise
Why might the issue be?
Why might the issue be?
You need to configure Eclipse to take control of your Tomcat installation. To do so:
double click on the Tomcat Server in the Servers view
under Server Locations, select Use Tomcat installation
This is illustrated on the screenshot below:
Eclipse creates a new Tomcat configuration separate to your Tomcat installation, in the 'Servers' project. This allows Eclipse to deploy webapps without interfering with anything you've done in your installation (via the manager app or by editing config files manually).
You can reconfigure Eclipse so that it uses the config from your Tomcat installation (see Pascal's answer), or to re-enable the manager app - but read the WTP Tomcat FAQ first as there are good reasons for it working the way it does. I don't recall ever needing to do this - the 'Servers' tab in Eclipse lets you deploy/start/stop/debug/configure apps as required.

How to redeploy the web app using the Eclipse IDE

Im new to Eclipse. I use Tomcat as my run time server, but every time I modified the jsp pages, Eclipse was still displaying the older one. Just wondering how to redeploy the application so the changes can be reflected.
Eclipse: Eclipse IDE for Java EE Developers 1.2.1.20090918-0703
Tomcat: Tomcat 6.0
Thanks
Doubleclick the server instance in question in the Servers view to open its configuration. Now, in the right top you should see a section called Publishing. Open it to verify and configure autopublishing settings.
Eclipse should do that automatically for you.
Otherwise, on the Servers view (Menu Window->Show View->Servers), you can right click on your Tomcat instance and hit "Publish" or "Restart"
Make sure you have the "JST Server Adapters" ("Web, XML and Java EE Development category") feature installed.
Eclipse's publishing functionality requries the project to be a "web project", and in some cases requires additional configurations.
Go to Windows > Preferences > Server > Runtime environments and add your tomcat
Either try using publishing, or (better I think) use the FileSync plugin. There you can tell which folders from your project should be copied (live) to what directory on your machine (the tomcat/webapps/yourapp). With a little more effort the filesync configuration can be made machine independent (only using one parameter as TOMCAT_ROOT), in case you want to check-in the project to a repository where others will use it.
Get the Tomcat plugin. It was nice because you can install Tomcat on your system and then associate your web app with that instance of Tomcat. The plugin will let you stop/start Tomcat and define a server such that when you do a build it knows how to deploy the changes. There may be some newer plugin but the Tomcat plugin worked for me and was fairly simple to install and use. Here is a page from IBM on using Eclipse and Tomcat. Inside that page it points you to the following: http://www.ibm.com/developerworks/opensource/library/os-eclipse-tomcat/