eclipse webapp welcome file display error - eclipse

I m new to eclipse and facing difficulties at the beginning of a new webapp.
index.jsp doesnt display.
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" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" id="WebApp_ID" version="3.0">
<display-name>PizzaOrderApp</display-name>
<welcome-file-list>
<welcome-file>index.jsp</welcome-file>
</welcome-file-list>
</web-app>
I already tryed with http://localhost:8080/PizzaOrderApp/index.jsp and http://localhost:8080/PizzaOrderApp/jsp/index.jsp
after remove-readd tomcat server:

Have you tried putting the .jsp file directly in the WebContent folder rather than creating a folder for the JSP pages?

You did not define the Spring dispatcher servlet in web.xml. You can either copy index.jsp outside of WEB-INF directory (into webcontent), or you should have a deep look into the Spring MVC documentation.

I also faced this problem but what i was doing wrong is, I created
Dynamic project in eclipse with Dynamic Web Module version 3.0. It
won't give you Web.xml file.I added Web.xml file from other project
but still Welcome File is not getting.
Then i deleted the project and i created the project with Dynamic Web
Module Version 2.4 and it given me Web.xml file. I again Configure the
Welcome File in the Web.xml file, After that its working fine.Server
which i am using is Tomcat 7 and java 1.7,Eclipse Luna.

Related

No project can be run from eclipse on Tomcat

When trying to create Dynamic Web project or even using old one( which used to work before) and running it on the tomcat(v8.0.35) server from my eclipse (mars.2 v4.5.2) I started getting Http status code 404 when accessing the recourse:
Here is my 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>hello</display-name>
<servlet>
<display-name>LoginServlet</display-name>
<servlet-name>LoginServlet</servlet-name>
<servlet-class>com.javawebtutor.controller.LoginServlet</servlet-class>
</servlet>
<servlet>
<display-name>RegisterServlet</display-name>
<servlet-name>RegisterServlet</servlet-name>
<servlet-class>com.javawebtutor.controller.RegisterServlet</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>LoginServlet</servlet-name>
<url-pattern>/LoginServlet</url-pattern>
</servlet-mapping>
<servlet-mapping>
<servlet-name>RegisterServlet</servlet-name>
<url-pattern>/RegisterServlet</url-pattern>
</servlet-mapping>
<welcome-file-list>
<welcome-file>login.jsp</welcome-file>
</welcome-file-list>
</web-app>
For reference, I have done everything step by step in this tutorial:
http://www.javawebtutor.com/articles/hibernate/mvc-appliction-using-servlet-jsp-and-hibernate.html
Java I'm using for the project is jdk1.8. For server - jre1.8
I'm 99% sure I've not deviated from the tutorial and something wrong must be with my Tomcat installation. As I mentioned it worked before on other projects I have not modified and it stopped working as well.
I have tried cleaning projects, cleaning Tomcat server, work directory, remove tomcat server, restart eclipse, add tomcat server again. I've even converted project into Maven project and tried to build with clean and install goals. Nothing helped.
Here is server location snippet:
Related answer here: Tomcat is not deploying my web project from Eclipse
And yes, I did try everything in there.
If it helps I'm developing on Win10
EDIT:
Project topology:
With the limited amount of info, I suggest you do the following:
Check if you have a login.jsp directly under your webapp or webContent(your tutorial uses this), because your welcome file in web.xml specifies this as your home page.
Try access http://localhost:8080/ instead of http://localhost:8080/hello/
Please provide your complete expanded project tree if the above does not solve your problem.
Also, here is one of my youtube video introducing how to set up a running java-web app with eclipse and tomcat. It is only a couple of minutes.
Following this tutorial makes sure you have a minimal java web project running, you can start from there if your problem cannot be fixed.

Struts 2 Hello World

I have a problem at this example
I work with eclipse for Java EE and Apache Tomcat 8.
My project structure:
The web.xml code:
<?xml version="1.0" encoding="UTF-8"?>
<web-app id="WebApp_ID" version="2.4" xmlns="http://java.sun.com/xml/ns/j2ee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd">
<display-name>Hello World Struts 2</display-name>
<welcome-file-list>
<welcome-file>index.jsp</welcome-file>
</welcome-file-list>
<filter>
<filter-name>struts2</filter-name>
<filter-class>org.apache.struts2.dispatcher.filter.StrutsPrepareAndExecuteFilter</filter-class>
</filter>
<filter-mapping>
<filter-name>struts2</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
</web-app>
The other files code is the same as the struts website.
When I run the index.jsp file I get the following error:
**HTTP Status 404 - /helloworld/index.jsp
type Status report
message /helloworld/index.jsp
description The requested resource is not available.**
Can someone spot the reason why can't I run it?
First of all the project is created by using Maven configuration, and to access the Struts action you should use url
Step 6 - Build the WAR File and Run The Application
Execute mvn clean package to create the war file.
Copy the war file to your Servlet container. After your Servlet
container successfully deploys the war file go to this URL
http://localhost:8080/helloworld/index.action where you should see
the following:
(source: apache.org)
Web application context is where the application was deployed. In the docs url it's /helloworld, on the image it's /Hello_World_Struts2_Ant. Use it as a part of the url. It doesn't matter which app context did you use during deployment but url depends on it. If you want to change the web app context you should read Java - How to change context root of a dynamic web project in Eclipse. After the context you use action name with .action extension to execute action.
Don't use URLs like localhost:8080/helloworld/index.jsp because you might not get the resource because it's already handled by the web server.

Removing #WebServlet causes java.lang.ClassNotFoundException

I'm using Tomcat 7 in eclipse Juno with servlet 3.0 specs (jdk 1.7).
When I create a new servlet using Eclipse IDE it automaticaly create a new mapping using #WebServlet("/foo") statement and everything works fine (the servlet works).
Removing the #WebServlet("/foo") mapping and using the manual one in web.xml:
<web-app>
<servlet>
<servlet-name>Servlet1</servlet-name>
<servlet-path>foo.Servlet</servlet-path>
</servlet>
<servlet-mapping>
<servlet-name>Servlet1</servlet-name>
<url-pattern>/foo</url-pattern>
</servlet-mapping>
</web-app>
causes Tomcat crash:
SEVERE: Allocate exception for servlet java.lang.ClassNotFoundException:
I'm sure that foo.Servlet.Servlet1 is the correct path and name.
I've to manually compile the servlet before starts Tomcat? I run the project directly from eclipse ide, setting up a Tomcat 7 Runtime Environment.
Your Servlet declaration in web.xml is not correct, You need to change
<servlet-path>foo.Servlet</servlet-path>
with
<servlet-class>foo.Servlet</servlet-class>
Also you should add the schema declaration in your web.xml file, it would have saved you all this trouble by showing the error in your xml editor because there is nothing such as <servlet-path> in it.
<?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"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee
http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd"
id="WebApp_ID" version="3.0">

Getting HTTP Status 404 error when trying to deploy war file of my web application on tomcat

I know this questions was asked earlier yet any of the answers given did not fix my problem.
I have created a web application named JSP_web_application_01 using JSP in Eclipse and I'm on ubuntu 12.04 LTS. I have index.jsp file inside WebContent directory. I made the .war file of it using command prompt and in order to deploy it I put it inside the webapps folder of tomcat and stopped tomcat using the command sudo $CATALINA_HOME/bin/shutdown.sh and again started it by sudo $CATALINA_HOME/bin/startup.sh
And it inflated the .war file(JSP_web_application_01.war) and created the JSP_web_application_01 folder structure and everything but what I get is an http 404 status code when I try to access it from the browser using :
http://localhost:8080/JSP_web_application_01/
I get this :
HTTP Status 404 - /JSP_web_application_01/
type Status report
message /JSP_web_application_01/
description The requested resource is not available.
Apache Tomcat/7.0.47
This is my web.xml file that is inside WebContent/WEB-INF folder
<?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" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" id="WebApp_ID" version="3.0">
<display-name>JSP_web_application_01</display-name>
<welcome-file-list>
<welcome-file>index.html</welcome-file>
<welcome-file>index.htm</welcome-file>
<welcome-file>index.jsp</welcome-file>
<welcome-file>default.html</welcome-file>
<welcome-file>default.htm</welcome-file>
<welcome-file>default.jsp</welcome-file>
</welcome-file-list>
</web-app>
This is my first time of trying to host a web application. So, any help would be much appreciated.
Your Steps seems to be ok , Replace the welcome file list with a single file, If you want to load index.html . then ,
<?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" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" id="WebApp_ID" version="3.0">
<display-name>JSP_web_application_01</display-name>
<welcome-file-list>
<welcome-file>index.html</welcome-file>
</welcome-file-list>
</web-app>
Also Clean and Build your project to get rid of errors before you deploy it as .war
Read here and here to know more about Deployment Descriptor.
Hope it helps!
Check the project files must be decompressed under JSP_web_application_01 especially index.jsp. If it correct, restart web server, tail the log file under $CATALINA_HOME/logs, check the start info correct.

Web-app version is overridden when launching Tomcat 7 from Eclipse

I'm developping a web application that is using web-fragment.xml files.
AFAIK, the web-framgent.xml files of the JAR in WEB-INF/lib should be merged and resolved to an effective web.xml.
So, I activate the logEffectiveWebXml option of my Tomcat 7 server to see the resulting file.
Hereby the beginning of the effective web.xml file:
Case 1: When the application is deploy on a standalone Tomcat 7:
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="http://java.sun.com/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd"
version="3.0"
metadata-complete="true">
Case 2: When the application is deploy on a Tomcat 7 in Eclipse IDE:
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="http://java.sun.com/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd"
version="2.5"
metadata-complete="true">
You notice that the version attribute is replaced with "2.5".
Besides, the effective web.xml is correct when deploying the app on the standalone Tomcat (the content of web-fragments.xml files are merged) whereas these contents are absent when launching Tomcat from Eclipse.
I think this is due to the version override.
Do you know why the version attribute is overriden when launching in Eclipse?
I inspect Eclipse configuration, projects configuration (they all use dynamic web module 3.0) and workspace directory ".metadata.plugins\org.eclipse.wst.server.core" but I don't manage to find something wrong...
NOTE: I also notice that the version is overridden even if I don't deploy my application (= fresh Tomcat install).
Thanks for your help.