Export & deploying webapp in Eclipse

Question

I have trouble with export my very simple project in eclipse SDK: eclipse does't compiling *.jar file for my "core" class.

Struct of my simple project:

│   .classpath
│   .project
│
├───.settings
│       .jsdtscope
│       org.eclipse.jdt.core.prefs
│       org.eclipse.jst.jsp.core.prefs
│       org.eclipse.wst.common.component
│       org.eclipse.wst.common.project.facet.core.xml
│       org.eclipse.wst.css.core.prefs
│       org.eclipse.wst.html.core.prefs
│       org.eclipse.wst.jsdt.ui.superType.container
│       org.eclipse.wst.jsdt.ui.superType.name
│       org.eclipse.wst.ws.service.policy.prefs
│       org.eclipse.wst.xsl.core.prefs
│
├───build
├───src
│   └───my_package
│           core.java
│
└───WebContent
    │   index.jsp
    │
    ├───META-INF
    │       MANIFEST.MF
    │
    └───WEB-INF
        │   web.xml
        │
        ├───classes
        │   └───my_package
        │           core.class
        │
        └───lib

If i running project from eclipse, it's already working, but if I upload WebContent to hosting, I've error.

web.xml:

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" id="WebApp_ID" version="2.5">
  <display-name>MyProject</display-name>
  <welcome-file-list>
    <welcome-file>index.jsp</welcome-file>
  </welcome-file-list>
</web-app>

eclipse does't build core.jar file for my package "my_package" in WEB-INF/lib/ dir — Dmitro, Nov 13 '10 at 10:56

score 1 · Answer 1 · answered Nov 13 '10 at 08:21

1

There is nothing wrong with your setup but may be with your export or naming.

With the following steps you will get a working simple webapp with jsp support.

Create new dynamic web project in eclipse
Add an index.jsp page to the WebContent folder
Write something like "Hello World!" to the body of the index.jsp page
export the project as war file and name the war to test.war
Copy this war file to your tomcat/webapps folder and start tomcat
By accessing http://localhost:8080/test you should get the output "Hello World!"

answered Nov 13 '10 at 08:21

guido

687
4
13

in localhost allready works, but eclipse does't build core.jar file for my package "my_package" in WEB-INF/lib/ dir. if i export to *.war and deploying them, core.jar so does't exists – Dmitro Nov 13 '10 at 10:55
eclipse doesnt pack your classes in a jar automatically, they all go to WEB-INF/classes. Jars are normally for external libraries. – guido Nov 20 '10 at 20:49

score 0 · Answer 2 · answered Nov 13 '10 at 20:43

Which version do you use from eclipse? Since it is not enough to put a jar into classpath to have them exported into webinf/library. In 3.5 you must add the jar in "java ee module dependencies" section in project properties, in 3.6 it is called "Web Deployment Assembly". Check if your core.jar is in this place.

Export & deploying webapp in Eclipse

2 Answers2