Is the following thing possible:
having a first webapp fr,
having a second webapp en,
having a Java project P which contains the servlets (the classes that extend HttpServlet) that the two webapps fr and en need,
web.xml in fr references a servlet S in the Java project P,
web.xml in en references the same servlet S as fr in the Java project P.
<servlet>
<description></description>
<display-name>AServlet</display-name>
<servlet-name>AServlet</servlet-name>
<servlet-class>com.projp.AServlet</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>AServlet</servlet-name>
<url-pattern>/a_servlet</url-pattern>
</servlet-mapping>
In the servlet-class XML element, I would need the tell the two webapps fr and en that the servlet S is in project P and not in projects fr or en.
Is it possible or do I need to duplicate the Java code for the servlets in both fr and en projects?
Related
I have a simple JSF project which works just fine; after adding RichFaces to it, it stops working properly
Environment: Eclipse IDE, JSF 2.1 (Apache MyFaces 2.1.5), Tomcat v7.0 Server (Location: workspace metadata, Server Locations: Use Tomcat installation); http://localhost:8181/ gives me the admin console, so the server is running ok
The application: a Dynamic Web Project (version 3.0) named jsf1;
under WebContent, i have a page named main.xhtml (For brevity, i won't paste the content, because things work well so far; Its a simple hello world page);
the faces-config.xml is left unchanged;
the web.xml contains:
<servlet>
<servlet-name>Faces Servlet</servlet-name>
<servlet-class>javax.faces.webapp.FacesServlet</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>Faces Servlet</servlet-name>
<url-pattern>/faces/*</url-pattern>
</servlet-mapping>
In Project Explorer, i right click on the project > Run As > Run on Server, and the application is accessible in a web browser at the url http://localhost:8181/jsf1/faces/main.xhtml
Adding RichFaces: i followed the instructions given at https://docs.jboss.org/richfaces/latest_3_3_X/en/devguide/html/GettingStarted.html
under WEB-INF/lib i have added all the required jars
i have appended to web.xml the following content:
<!-- Plugging the "Blue Sky" skin into the project -->
<context-param>
<param-name>org.richfaces.SKIN</param-name>
<param-value>blueSky</param-value>
</context-param>
<!-- Making the RichFaces skin spread to standard HTML controls -->
<context-param>
<param-name>org.richfaces.CONTROL_SKINNING</param-name>
<param-value>enable</param-value>
</context-param>
<!-- Defining and mapping the RichFaces filter -->
<filter>
<display-name>RichFaces Filter</display-name>
<filter-name>richfaces</filter-name>
<filter-class>org.ajax4jsf.Filter</filter-class>
</filter>
<filter-mapping>
<filter-name>richfaces</filter-name>
<servlet-name>Faces Servlet</servlet-name>
<dispatcher>REQUEST</dispatcher>
<dispatcher>FORWARD</dispatcher>
<dispatcher>INCLUDE</dispatcher>
</filter-mapping>
Now, when i run the project on server, in the console i get:
SEVERE: Exception starting filter richfaces
java.lang.ClassNotFoundException: org.ajax4jsf.Filter
I added the richfaces-impl-3.3.3.Final.jar, which contains the org.ajax4jsf.Filter class.
Now, when i run the project on server,the console contains no errors, however, the link http://localhost:8181/jsf1/faces/main.xhtml displays a blank page.
How is it possible to create a functional RichFaces application?
Just setup an eclipse project using Maven webapp architype. I created a servlet file and that got added to the resources folder under src/main/
When I run the app tomcat gives an error:
Error instantiating servlet class com.ABCompany.Demo.SampleDemo. java.lang.ClassNotFoundException: com.ABCompany.Demo.SampleDemo
The file is under the folder src/main/resources/com/ABCompany/Demo/SampleDemo.java
My web.xml is below.
<web-app>
<display-name>Demo Example</display-name>
<servlet>
<servlet-name>SampleDemo</servlet-name>
<display-name>SampleDemo</display-name>
<description></description>
<servlet-class>com.ABCompany.Demo.SampleDemo</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>SampleDemo</servlet-name>
<url-pattern>/SampleDemo</url-pattern>
</servlet-mapping>
<welcome-file-list>
<welcome-file>index.jsp</welcome-file>
</welcome-file-list>
</web-app>
Reading in the question:
The file is under the folder src/main/resources/com/ABCompany/Demo/SampleDemo.java
Java source files, should go under src/main/java
src/main/java/com/ABCompany/Demo/SampleDemo.java
Other files, like properties, HTML/CSS files, images, templates, etc. Are normally placed in the src/main/resources. As they do not need to be compiled, just copied over into the build directory. So they can be used for running the application, or for packaging (creating a jar).
TIP: Package names, should not contains capitals, by confention. So prevered is com.abcompany.demo.
TIP: Also read How to create a Web Application Project with Maven which uses a Maven archetype, for setting it all up!
I had the same problem.
My solution is:
When the project is created please create the java folder under src/main manually, it is because the maven-archetype-webapp doesn't create the src/main/java by default.
Before: src/main
After: src/main/java
image:java folder manually created
When the first step is ready then you can create all the servlets that you need, please make sure that you create all your classes and servlets under src/main/java.
The problem is because the servlet was created under src/main/resources that means that all your .java files was packaged as a resource and not as .class compiled.
My application excutes successfully when I run it in eclipse. Widgetset got compiled successfully. All pages get loaded as expected.
But when I create a war file in eclipse and deployed it in the Tomcat 7.0/webapps folder and then run Tomcat, I'm getting the following error messages:
SEVERE: Exception fixing docBase for context [/SampleResponsiveApp]
java.io.FileNotFoundException: C:\Program Files\Apache Software Foundation\Tomcat 7.0\webapps\SampleResonsiveApp\VAADIN\widgetsets\com.example.sampleresponsiveapp.widgetset.SampleresponsiveappWidgetset\3A3F399A095112F8B58229BB835C5B7E.cache.js (Access is denied).
SampleResponsiveApp.war has the following contents:
1. META-INF
2. VAADIN
2.1 themes
2.1.1 sampleresponsiveapptheme
---- sampleresponsiveapptheme.scss
---- styles.scss
2.2 widgetsets
2.2.1 com.example.sampleresponsiveapp.widgetset.SampleresponsiveappWidgetset
2.3 images
3. WEB-INF
3.1 classes
3.2 lib
--- responsive-1.0.0.alpha1.jar [is the only jar file added and used by me]
--- other jar files got generated while exporting the war from eclipse
3.3 web.xml
And following is the servlet configuration in web.xml
<servlet>
<servlet-name>Sampleresponsiveapp Application</servlet-name>
<servlet-class>com.example.sampleresponsiveapp.SampleResponsiveAppServlet</servlet-class>
<init-param>
<description>Vaadin UI class to use</description>
<param-name>UI</param-name>
<param-value>com.example.sampleresponsiveapp.SampleresponsiveappUI</param-value>
</init-param>
<init-param>
<description>Application widgetset</description>
<param-name>widgetset</param-name>
<param-value>com.example.sampleresponsiveapp.widgetset.SampleresponsiveappWidgetset</param-value>
</init-param>
</servlet>
<servlet-mapping>
<servlet-name>Sampleresponsiveapp Application</servlet-name>
<url-pattern>/*</url-pattern>
</servlet-mapping>
<servlet-mapping>
<servlet-name>Sampleresponsiveapp Application</servlet-name>
<url-pattern>/VAADIN/*</url-pattern>
</servlet-mapping>
Please let me know how to get my application war file run successfully in Tomcat 7.
I searched this site for answer to this question and couldn't find a solution.
what i did is that i simply compress the war directory in my eclipse GWT app project then rename it to .war then drop it to tomcat webapps folder.
when i run the web app, the first screen is successfully shown but when i call a servlet within my src code it gives me resource not found by tomcat server.
i'm sure i have added entry for servlet in web.xml file and the app worked well when i run it in eclipse gwt dev mode. something prevent my servlets (standard servlets not GWT RPC servlets) to be found and executed by tomcat. what could be the reason?
UPDATE
web.xml
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE web-app
PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
"http://java.sun.com/dtd/web-app_2_3.dtd">
<web-app>
<!-- Servlets -->
<servlet>
<servlet-name>OAuth</servlet-name>
<servlet-class>org.goauth.server.OAuthServlet</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>OAuth</servlet-name>
<url-pattern>/goauth/oauth</url-pattern>
</servlet-mapping>
<servlet>
<servlet-name>OAuthCallback</servlet-name>
<servlet-class>org.goauth.server.OAuthCallbackServlet</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>OAuthCallback</servlet-name>
<url-pattern>/goauth/callback</url-pattern>
</servlet-mapping>
<servlet>
<servlet-name>service</servlet-name>
<servlet-class>org.goauth.server.OAuthServiceImpl</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>service</servlet-name>
<url-pattern>/goauth/service</url-pattern>
</servlet-mapping>
<servlet>
<servlet-name>OAuthConfirm</servlet-name>
<servlet-class>org.goauth.server.OAuthConfirmServlet</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>OAuthConfirm</servlet-name>
<url-pattern>/goauth/confirm</url-pattern>
</servlet-mapping>
<!-- Default page to serve -->
<welcome-file-list>
<welcome-file>GOAuth.html</welcome-file>
</welcome-file-list>
</web-app>
Error
nothing in tomcate logs files
the only error in browser is :
HTTP Status 404 - /goauth/oauth
type Status report
message /goauth/oauth
description The requested resource (/goauth/oauth) is not available.
Apache Tomcat/6.0.20
I found the problem :
for invoking my servlet i was calling a url of the format : "/goauth/OAuth"
this worked with eclipse gwt plugin in dev mode but not when i deploy war to tomcat server.
the solution is that my url pointing to my servlet should be of the form :
String href = GWT.getHostPageBaseURL()+"goauth/OAuth";
so we need to tell tomcat the full url by prefixing servlet url with GWT.getHostPageBaseURL().
Take a look at how to create a GWT .war in eclipse: http://blog.elitecoderz.net/gwt-and-tomcat-create-war-using-eclipse-to-deploy-war-on-tomcat/2009/12/
In your mapping, try changing
/goauth/oauth
to /OAuth
I'm trying to divide my app into modules and I'm stuck with this problem:
I have a widget MapServiceWidget in one module called "webvisualisation" that uses the RPC to get the data from MapService Rpc interface. I'm inheriting this module in another GWT module called "led" (I packed "webvis..." into jar with sources, added in module "led" deffinition). Then I try to create this widget in the second ("led") module and get message
"Problem accessing /led/mapservice reason NOT FOUND".
And sure it can't find it cause mapservice is defined in inherited "webvisualisation" module.
The question is why it's looking for this servler implementation in "led" module not in "webvisualisation" where it's defined? I checked all module definitions and web.xml files several times and consulted documentations, it seems ok.. but it's not. If my description is not clear I can post some config/source files.
This is web.xml for webvisualisation module
<!-- Servlets -->
<servlet>
<servlet-name>mapservice</servlet-name>
<servlet-class>pl.gmike.webvis.server.MapServiceImpl</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>mapservice</servlet-name>
<url-pattern>/webvisualisation/mapservice</url-pattern>
</servlet-mapping>
And for led it's just ordinary generated sample file
<!-- Servlets -->
<servlet>
<servlet-name>greetServlet</servlet-name>
<servlet-class>pl.led.server.GreetingServiceImpl</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>greetServlet</servlet-name>
<url-pattern>/led/greet</url-pattern>
</servlet-mapping>
Seems that you're bumping into a classpath problem. Maybe check that your webvisualisation.jar is in the WEB-INF/lib directory of your web application.
I got it working. I just added servlet and servlet mapping entries to "led" modules web.xml so it look like this now:
<!-- Servlets -->
<servlet>
<servlet-name>greetServlet</servlet-name>
<servlet-class>pl.led.server.GreetingServiceImpl</servlet-class>
</servlet>
<servlet>
<servlet-name>mapservice</servlet-name>
<servlet-class>pl.gmike.webvis.server.MapServiceImpl</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>greetServlet</servlet-name>
<url-pattern>/led/greet</url-pattern>
</servlet-mapping>
<servlet-mapping>
<servlet-name>mapservice</servlet-name>
<url-pattern>/led/mapservice</url-pattern>
</servlet-mapping>
As You can see the mapservice servlet is mapped here to /led/mapservice URL where GWT seems to look for it, unlike in original "webvisualisation" module web.xml where it was mapped to /wevisualisation/mapservice .
I'm not very satisfied with this solution, it works but it requires adding a servlet mapping in WebApps web.xml for every servlet in inherited module that I want to use or that is used somewhere in this inherited module.
Still I would like to know why servlet definitions and mappings from inherited modules are not included in WebApps web.xml during compilation/linking... I think it should work without such hacks, so there's something I'm doing wrong.