Выброс JBOSS Исключение при попытке Restfull Webservices с использованием JAXRS

Question

Я разработал образец RestEasy Hello World для моей самооценки, но когда я пытаюсь запустить этот проект с помощью JBOSS7.0, я вижу отмеченную ниже ошибку следа в стеке: Пожалуйста, предложите мне с возможным решением или дайте мне знать, если я неправильно закодирован в вышеупомянутых xml и java-файлах.

12:54:44,145 ERROR [org.apache.catalina.core.ContainerBase.[jboss.web].[default-host].[/resteasy]] (MSC service thread 1-6) Exception sending context initialized event to listener instance of class org.jboss.resteasy.plugins.server.servlet.ResteasyBootstrap: java.lang.NoClassDefFoundError: javax/servlet/ServletContext 
    at org.scannotation.WarUrlFinder.findWebInfClassesPath(WarUrlFinder.java:56) [scannotation-1.0.3.jar:] 
    at org.jboss.resteasy.plugins.server.servlet.ListenerBootstrap.getScanningUrls(ListenerBootstrap.java:64) [resteasy-jaxrs-2.2.1.GA.jar:] 
    at org.jboss.resteasy.plugins.server.servlet.ConfigurationBootstrap.createDeployment(ConfigurationBootstrap.java:147) [resteasy-jaxrs-2.2.1.GA.jar:] 
    at org.jboss.resteasy.plugins.server.servlet.ListenerBootstrap.createDeployment(ListenerBootstrap.java:32) [resteasy-jaxrs-2.2.1.GA.jar:] 
    at org.jboss.resteasy.plugins.server.servlet.ResteasyBootstrap.contextInitialized(ResteasyBootstrap.java:27) [resteasy-jaxrs-2.2.1.GA.jar:] 
    at org.apache.catalina.core.StandardContext.contextListenerStart(StandardContext.java:3368) [jbossweb-7.0.0.CR4.jar:7.0.0.Final] 
    at org.apache.catalina.core.StandardContext.start(StandardContext.java:3821) [jbossweb-7.0.0.CR4.jar:7.0.0.Final] 
    at org.jboss.as.web.deployment.WebDeploymentService.start(WebDeploymentService.java:70) [jboss-as-web-7.0.0.Final.jar:7.0.0.Final] 
    at org.jboss.msc.service.ServiceControllerImpl$StartTask.run(ServiceControllerImpl.java:1765) 
    at org.jboss.msc.service.ServiceControllerImpl$ClearTCCLTask.run(ServiceControllerImpl.java:2291) 
    at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886) [:1.6.0_18] 
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908) [:1.6.0_18] 
    at java.lang.Thread.run(Thread.java:619) [:1.6.0_18] 
Caused by: java.lang.ClassNotFoundException: javax.servlet.ServletContext from [Module "org.scannotation.scannotation:main" from local module loader @a9c09e (roots: D:\jboss-as-web-7.0.0.Final\modules)] 
    at org.jboss.modules.ModuleClassLoader.findClass(ModuleClassLoader.java:191) 
    at org.jboss.modules.ConcurrentClassLoader.performLoadClassChecked(ConcurrentClassLoader.java:358) 
    at org.jboss.modules.ConcurrentClassLoader.performLoadClassChecked(ConcurrentClassLoader.java:330) 
    at org.jboss.modules.ConcurrentClassLoader.performLoadClass(ConcurrentClassLoader.java:307) 
    at org.jboss.modules.ConcurrentClassLoader.loadClass(ConcurrentClassLoader.java:101) 

12:54:44,175 ERROR [org.apache.catalina.core.StandardContext] (MSC service thread 1-6) Context [/resteasy] startup failed due to previous errors 
12:54:44,183 ERROR [org.apache.catalina.core.ContainerBase.[jboss.web].[default-host].[/resteasy]] (MSC service thread 1-6) Exception sending context destroyed event to listener instance of class org.jboss.resteasy.plugins.server.servlet.ResteasyBootstrap: java.lang.NullPointerException 
    at org.jboss.resteasy.plugins.server.servlet.ResteasyBootstrap.contextDestroyed(ResteasyBootstrap.java:37) [resteasy-jaxrs-2.2.1.GA.jar:] 
    at org.apache.catalina.core.StandardContext.listenerStop(StandardContext.java:3465) [jbossweb-7.0.0.CR4.jar:7.0.0.Final] 
    at org.apache.catalina.core.StandardContext.stop(StandardContext.java:3970) [jbossweb-7.0.0.CR4.jar:7.0.0.Final] 
    at org.apache.catalina.core.StandardContext.start(StandardContext.java:3888) [jbossweb-7.0.0.CR4.jar:7.0.0.Final] 
    at org.jboss.as.web.deployment.WebDeploymentService.start(WebDeploymentService.java:70) [jboss-as-web-7.0.0.Final.jar:7.0.0.Final] 
    at org.jboss.msc.service.ServiceControllerImpl$StartTask.run(ServiceControllerImpl.java:1765) 
    at org.jboss.msc.service.ServiceControllerImpl$ClearTCCLTask.run(ServiceControllerImpl.java:2291) 
    at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886) [:1.6.0_18] 
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908) [:1.6.0_18] 
    at java.lang.Thread.run(Thread.java:619) [:1.6.0_18] 

Ниже программа я написал

Maven -> pom.xml http://maven.apache.org/xsd/maven-4.0.0.xsd "> 4.0.0 com.javacodegeeks Resteasy 0.0.1-SNAPSHOT войны Resteasy JEE5 Webapp http://maven.apache.org

<repositories> 
    <repository> 
     <id>org.jboss.resteasy</id> 
     <url>http://repository.jboss.org/maven2/</url> 
    </repository> 
    </repositories> 

    <dependencies> 

    <dependency> 
     <groupId>javax.servlet</groupId> 
     <artifactId>servlet-api</artifactId> 
     <version>2.5</version> 
     <scope>provided</scope> 
    </dependency> 

    <dependency> 
     <groupId>javax.servlet.jsp</groupId> 
     <artifactId>jsp-api</artifactId> 
     <version>2.1</version> 
     <scope>provided</scope> 
    </dependency> 
    <dependency> 
    <groupId>org.jboss.resteasy</groupId> 
    <artifactId>resteasy-jaxrs</artifactId> 
    <version>3.0.1.Final</version> 
</dependency> 

    <dependency> 
     <groupId>org.jboss.resteasy</groupId> 
     <artifactId>resteasy-jaxb-provider</artifactId> 
     <version>2.0-beta-2</version> 
    </dependency> 
    <dependency> 
     <groupId>org.jboss.resteasy</groupId> 
     <artifactId>resteasy-jettison-provider</artifactId> 
     <version>2.0-beta-2</version> 
    </dependency> 

    <dependency> 
    <groupId>org.jboss.spec.javax.servlet</groupId> 
    <artifactId>jboss-servlet-api_3.0_spec</artifactId> 
    <version>1.0.0.Final</version> 
</dependency> 

    </dependencies> 

    <build> 
    <plugins> 
     <plugin> 
     <groupId>org.apache.maven.plugins</groupId> 
     <artifactId>maven-compiler-plugin</artifactId> 
     <version>2.0.2</version> 
     <configuration> 
      <source>1.5</source> 
      <target>1.5</target> 
     </configuration> 
     </plugin> 
    </plugins> 
    <finalName>resteasy</finalName> 
    </build> 
</project> 

web.xml

<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>Restful Web Application</display-name> 

    <!-- Auto scan REST service --> 
    <context-param> 
     <param-name>resteasy.scan</param-name> 
     <param-value>true</param-value> 
    </context-param> 

    <!-- this need same with resteasy servlet url-pattern --> 
    <context-param> 
     <param-name>resteasy.servlet.mapping.prefix</param-name> 
     <param-value>/rest</param-value> 
    </context-param> 

    <listener> 
     <listener-class> 
      org.jboss.resteasy.plugins.server.servlet.ResteasyBootstrap 
     </listener-class> 
    </listener> 

    <servlet> 
     <servlet-name>resteasy-servlet</servlet-name> 
     <servlet-class> 
      org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher 
     </servlet-class> 
    </servlet> 

    <servlet-mapping> 
     <servlet-name>resteasy-servlet</servlet-name> 
     <url-pattern>/rest/*</url-pattern> 
    </servlet-mapping> 

</web-app> 

MessageDriven.java

package com.sandeep.resteasy; 

import javax.ws.rs.GET; 
import javax.ws.rs.Path; 
import javax.ws.rs.PathParam; 
import javax.ws.rs.core.Response; 

@Path("/message") 
public class MessageDriven { 

    @GET 
    @Path("/{param}") 
    public Response printMessage(@PathParam("param") String msg) { 

     String result = "Restful example : " + msg; 

     return Response.status(200).entity(result).build(); 

    } 

} 

Answer 1

Вы должны удалить параметр контекста автоматического сканирования.

<context-param> 
    <param-name>resteasy.scan</param-name> 
    <param-value>true</param-value> 
</context-param> 

JBoss AS7 делает свою собственную автоматическую проверку и добавление параметра resteasy.scan контекста вызовет эту ошибку при запуске под AS7.