Solved

JAX-RS and Jersey web services application error

Posted on 2013-06-14
3
8,790 Views
Last Modified: 2013-06-15
Hello,
I am using jersey jars
: asm-3.3.1.jar, jersey-bundle-1.14.jar, json.jar, jersey-simple-server-1.8.jar,
Is it i have to use some jars ?
I have added my web-inf/lib folder  and to my classpath

when i run the restful web services  url
http://localhost:8080/CrunchywebServices/crunchify/ctofservice/
getting an error as
HTTP Status 500 - Servlet.init() for servlet Jersey Web Application threw exception
type Exception report

message Servlet.init() for servlet Jersey Web Application threw exception

description The server encountered an internal error that prevented it from fulfilling this request.

exception

javax.servlet.ServletException: Servlet.init() for servlet Jersey Web Application threw exception
      org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:472)
      org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:99)
      org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:953)
      org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408)
      org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1008)
      org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:589)
      org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:310)
      java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
      java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
      java.lang.Thread.run(Unknown Source)


root cause

com.sun.jersey.api.container.ContainerException: The ResourceConfig instance does not contain any root resource classes.
      com.sun.jersey.server.impl.application.RootResourceUriRules.<init>(RootResourceUriRules.java:99)
      com.sun.jersey.server.impl.application.WebApplicationImpl._initiate(WebApplicationImpl.java:1300)
      com.sun.jersey.server.impl.application.WebApplicationImpl.access$700(WebApplicationImpl.java:163)
      com.sun.jersey.server.impl.application.WebApplicationImpl$13.f(WebApplicationImpl.java:769)
      com.sun.jersey.server.impl.application.WebApplicationImpl$13.f(WebApplicationImpl.java:765)
      com.sun.jersey.spi.inject.Errors.processWithErrors(Errors.java:193)
      com.sun.jersey.server.impl.application.WebApplicationImpl.initiate(WebApplicationImpl.java:765)
      com.sun.jersey.server.impl.application.WebApplicationImpl.initiate(WebApplicationImpl.java:760)
      com.sun.jersey.spi.container.servlet.ServletContainer.initiate(ServletContainer.java:489)
      com.sun.jersey.spi.container.servlet.ServletContainer$InternalWebComponent.initiate(ServletContainer.java:319)
      com.sun.jersey.spi.container.servlet.WebComponent.load(WebComponent.java:609)
      com.sun.jersey.spi.container.servlet.WebComponent.init(WebComponent.java:210)
      com.sun.jersey.spi.container.servlet.ServletContainer.init(ServletContainer.java:374)
      com.sun.jersey.spi.container.servlet.ServletContainer.init(ServletContainer.java:557)
      javax.servlet.GenericServlet.init(GenericServlet.java:160)
      org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:472)
      org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:99)
      org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:953)
      org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408)
      org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1008)
      org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:589)
      org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:310)
      java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
      java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
      java.lang.Thread.run(Unknown Source)

My web.xml

===============================================================
<servlet>
  <servlet-name>Jersey Web Application</servlet-name>
  <servlet-class>com.sun.jersey.spi.container.servlet.ServletContainer</servlet-class>
  <load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
  <servlet-name>Jersey Web Application</servlet-name>
  <url-pattern>/crunchify/*</url-pattern>
</servlet-mapping>

=======================================================================
One of the class is

public class CtoFService {
    @GET
    @Produces("application/xml")
    public String convertCtoF() {
 
        Double fahrenheit;
        Double celsius = 36.8;
        fahrenheit = ((celsius * 9) / 5) + 32;
 
        String result = "@Produces(\"application/xml\") Output: \n\nC to F Converter Output: \n\n" + fahrenheit;
        return "<ctofservice>" + "<celsius>" + celsius + "</celsius>" + "<ctofoutput>" + result + "</ctofoutput>" + "</ctofservice>";
    }
 
    @Path("{c}")
    @GET
    @Produces("application/xml")
    public String convertCtoFfromInput(@PathParam("c") Double c) {
        Double fahrenheit;
        Double celsius = c;
        fahrenheit = ((celsius * 9) / 5) + 32;
 
        String result = "@Produces(\"application/xml\") Output: \n\nC to F Converter Output: \n\n" + fahrenheit;
        return "<ctofservice>" + "<celsius>" + celsius + "</celsius>" + "<ctofoutput>" + result + "</ctofoutput>" + "</ctofservice>";
    }
}

Thanks,
0
Comment
Question by:roy_sanu
  • 2
3 Comments
 
LVL 35

Accepted Solution

by:
mccarl earned 300 total points
ID: 39247730
You need to tell Jersey where to find your classes, in your web.xml...
<servlet>
  <servlet-name>Jersey Web Application</servlet-name>
  <servlet-class>com.sun.jersey.spi.container.servlet.ServletContainer</servlet-class>
    <init-param>
      <param-name>com.sun.jersey.config.property.packages</param-name>
      <param-value>your.package.goes.here</param-value>
    </init-param>
  <load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
  <servlet-name>Jersey Web Application</servlet-name>
  <url-pattern>/crunchify/*</url-pattern>
</servlet-mapping>

Open in new window

You need to change that param-value to the package that contains the class "CtoFService". Also I think the URL to access it would be...
http://localhost:8080/CrunchywebServices/crunchify/
0
 

Author Comment

by:roy_sanu
ID: 39248620
I add my web.xml to

<servlet>
  <servlet-name>Jersey Web Application</servlet-name>
  <servlet-class>com.sun.jersey.spi.container.servlet.ServletContainer</servlet-class>
    <init-param>
      <param-name>com.sun.jersey.config.property.packages</param-name>
      <param-value>com.crunchify.restjersey</param-value>
    </init-param>
  <load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
  <servlet-name>Jersey Web Application</servlet-name>
  <url-pattern>/crunchify/*</url-pattern>
</servlet-mapping>

</web-app>

still the wired error comes


========================
SEVERE: StandardWrapper.Throwable
com.sun.jersey.api.container.ContainerException: The ResourceConfig instance does not contain any root resource classes.
      at com.sun.jersey.server.impl.application.RootResourceUriRules.<init>(RootResourceUriRules.java:99)
      at com.sun.jersey.server.impl.application.WebApplicationImpl._initiate(WebApplicationImpl.java:1300)
      at com.sun.jersey.server.impl.application.WebApplicationImpl.access$700(WebApplicationImpl.java:163)
      at com.sun.jersey.server.impl.application.WebApplicationImpl$13.f(WebApplicationImpl.java:769)
      at com.sun.jersey.server.impl.application.WebApplicationImpl$13.f(WebApplicationImpl.java:765)
      at com.sun.jersey.spi.inject.Errors.processWithErrors(Errors.java:193)
      at com.sun.jersey.server.impl.application.WebApplicationImpl.initiate(WebApplicationImpl.java:765)
      at com.sun.jersey.server.impl.application.WebApplicationImpl.initiate(WebApplicationImpl.java:760)
      at com.sun.jersey.spi.container.servlet.ServletContainer.initiate(ServletContainer.java:489)
      at com.sun.jersey.spi.container.servlet.ServletContainer$InternalWebComponent.initiate(ServletContainer.java:319)
      at com.sun.jersey.spi.container.servlet.WebComponent.load(WebComponent.java:609)
      at com.sun.jersey.spi.container.servlet.WebComponent.init(WebComponent.java:210)
      at com.sun.jersey.spi.container.servlet.ServletContainer.init(ServletContainer.java:374)
      at com.sun.jersey.spi.container.servlet.ServletContainer.init(ServletContainer.java:557)
      at javax.servlet.GenericServlet.init(GenericServlet.java:160)
      at org.apache.catalina.core.StandardWrapper.initServlet(StandardWrapper.java:1280)
      at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1193)
      at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:1088)
      at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:5123)
      at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5407)
      at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
      at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1559)
      at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1549)
      at java.util.concurrent.FutureTask$Sync.innerRun(Unknown Source)
      at java.util.concurrent.FutureTask.run(Unknown Source)
      at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
      at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
      at java.lang.Thread.run(Unknown Source)
=========================
0
 

Author Comment

by:roy_sanu
ID: 39249617
There  was an issue with the jars. i added some more right jars ...well i was guessing on that. it is working fine now..

thanks
0

Featured Post

DevOps Toolchain Recommendations

Read this Gartner Research Note and discover how your IT organization can automate and optimize DevOps processes using a toolchain architecture.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Title # Comments Views Activity
Apps blocked by Java 9 83
servlet example 17 33
IIs Windows 2008 HTTPS no access 4 36
Running JavaFX on JDeveloper 12C 1 33
The task of choosing a web design company to build a website for your business should never be taken in a light manner. Provided the fact that your website will act as a representative to your business and will be responsible for imposing an online …
Introduction This article is the second of three articles that explain why and how the Experts Exchange QA Team does test automation for our web site. This article covers the basic installation and configuration of the test automation tools used by…
Viewers learn about the third conditional statement “else if” and use it in an example program. Then additional information about conditional statements is provided, covering the topic thoroughly. Viewers learn about the third conditional statement …
Viewers will learn about if statements in Java and their use The if statement: The condition required to create an if statement: Variations of if statements: An example using if statements:

832 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question