Tag Archives: tomcat

Put Tomcat in Eclipse

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Vietnamese: bài viết hướng dẫn về cách cấu hình để tích hợp Tomcat vào Eclipse

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Since most of the step-to-step-guide about this problem (at least the guides I found) are a bit out-dated, I think I had better create a guide here. In fact, this guide is taken from my brothers at Evolus. Special thanks to bro Trương Xuân Tính and bro Lê Hồ Bá Phước for this piece of knowledge and their patience to repeat-and-repeat this damn process for me.

Notice: this guide is not a complete guide, just some kind of a checklist. I’ll add more details over time. Please feel free to ask if there’s something you don’t understand.

0. Download & install Tomcat & Eclipse.

1. Find the Tomcat sysdeo plugin for eclipse. I found a download source here, but the location can change in the future.

2. Install the plugin (taken from the official guide). Extract the plugin file (in my case, its version is 3.3.0). Copy the plugin to:
- “Eclipse_Home/dropins” for Eclipse 3.4, 3.5 and 3.6
- “Eclipse_Home/plugins” for Eclipse 2.1, 3.0, 3.1, 3.2 and 3.3

Plugin activation for Eclipse 3.x :

  • launch eclipse once using this option : -clean
  • if Tomcat icons are not shown in toolbar : select menu ‘Window>Customize Perspective…>Commands’, and check ‘Tomcat’ in ‘Available command groups’

Set Tomcat version and Tomcat home : Workbench -> Preferences, select Tomcat and set Tomcat version and Tomcat home (Tomcat version and Tomcat home are the only required fields, other settings are there for advanced configuration).

This plugin launches Tomcat using the default JRE checked in Eclipe preferences window.

  • To set a JDK as default JRE for Eclipse open the preference window : Window -> Preferences -> Java -> Installed JREs. This JRE must be a JDK (This is a Tomcat prerequisite).
  • The plugin sets itself Tomcat classpath and bootclasspath. Use Preferences -> Tomcat ->JVM Settings, only if you need specific settings. Often, I set the variable -Denv=dev to use different config file for development & production.

3. Finalize

Go to the plugin folder, you will see 2 files: “DevLoader.zip” & “DevloaderTomcat7.jar”. As their name implies, you will use “DevLoader.zip” for Tomcat with version less than 7, and “DevLoaderTomcat7.jar” for Tomcat 7.

  • If you are using Tomcat 7, copy “DevloaderTomcat7.jar” to <TOMCAT_HOME>/lib
  • If you are using other Tomcat 6, rename “DevLoader.zip” to “DevLoader.jar”, then put it in <TOMCAT_HOME>/lib.

Create a web project (I’m using Maven to manage the builds). Go to the properties of your project, go to “Tomcat/Class Loader/”, un-check “servlet-api.jar” and other libraries that are already provided by Tomcat. This is for preventing conflicts among duplicate libraries.

Also in “Project/Properties”,  set the context name and web application root. Context name is the name that you use to access the web-app, for example, if the context name is “test”, your server url may be like: “localhost:8080/test/”. Web application root is the place you put your web-application (it’s the folder that contains WEB-INF folder, often named webapp).

If you are using Maven, remember, all these eclispe settings will be removed if you do “maven eclipse:clean”, so don’t use that command unless you want to do config again. Only use “maven eclipse:eclipse” instead.

That should complete the task. Good luck!

Reference: http://www.eclipsetotale.com/tomcatPlugin.html