Still celebrating National IT Professionals Day with 3 months of free Premium Membership. Use Code ITDAY17

x
?
Solved

JAX-RS and Jersey web services application error

Posted on 2013-06-14
3
1 solution
Medium Priority
?
9,276 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
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
Join The Community
  • 2
3 Comments
 
LVL 36

Accepted Solution

by:
mccarl earned 1200 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

Automating Your MSP Business

The road to profitability.
Delivering superior services is key to ensuring customer satisfaction and the consequent long-term relationships that enable MSPs to lock in predictable, recurring revenue. What's the best way to deliver superior service? One word: automation.

READ IT
Question has a verified solution.

If you are experiencing a similar issue, please ask a related question
EE QA: Developing and Running Automated Tests for Our Website
Article by: Marlon
Introduction This article is the last of three articles that explain why and how the Experts Exchange QA Team does test automation for our web site. This article covers our test design approach and then goes through a simple test case example, how …
OOAD - Object-Oriented-Analysis and Design
Article by: Anandhi
Basic understanding on "OO- Object Orientation" is needed for designing a logical solution to solve a problem. Basic OOAD is a prerequisite for a coder to ensure that they follow the basic design of OO. This would help developers to understand the b…
Loops (Part 2)
Video by: Michael
Viewers learn about the “for” loop and how it works in Java. By comparing it to the while loop learned before, viewers can make the transition easily. You will learn about the formatting of the for loop as we write a program that prints even numbers…
Troubleshooting
Video by: Michael
Viewers learn how to read error messages and identify possible mistakes that could cause hours of frustration. Coding is as much about debugging your code as it is about writing it. Define Error Message: Line Numbers: Type of Error: Break Down…
Advertise Here
Suggested Courses

661 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

Advertise Here