Tomcat 7.0服务无法以ClassNotFoundException：javax.ws.rs.ProcessingException启动

Question

严重：启动java.util.concurrent.ExecutionException时子容器失败：org.apache.Catalina.LifeCycleException：启动组件[StandardEngine[Catalina].StandardHost[localhost].StandardContext[/HelloWorldRestService]]（位于java.util.concurrent.FutureTask.Report（位于java.util.concurrent.FutureTask.Report）（位于java.util.concurrent.FutureTask.Get（位于futureTask.java:133)（位于org.apache.Catalina.core.ContainerBase.StartInsult(containerBase.199)（位于在org.apache.Catalina.util.lifecyclebase.start（lifecyclebase.java:150)在org.apache.Catalina.core.containerbase$startchild.call（containerbase.java:1559)在org.apache.Catalina.core.containerbase$startchild.call（containerbase.java:1549)在java.util.concurrent.futuretask.run（futuretask.java:273)在java.util.concurrent.threadpoolexecutor.runworker（threadpoolexecutor.java:1170)在java.util.concurrent.threadpoolexecutor java.lang.thread.run（thread.java:853)原因：org.apache.Catalina.LifeCycleException：无法启动org.apache.Catalina.util.LifeCycleBase.start（LifeCycleBase.java:154)上的组件[StandardEngine[Catalina].StandardHost[localhost].StandardContext[/HelloWorldRestService]]

原因：java.lang.NoClassDeffounder错误：javax.ws.rs.ProcessingException在java.lang.J9VMInternals.PrepareClassImpl（本机方法）在java.lang.J9VMInternals.Prepare(j9VMInternals.java:1122)在java.lang.Class.GetDeclaredFields（class.java:685)在org.apache.catalina.util.inspection.getDeclaredFields（inspection.java:106)在org.apache.catalina.Startup.WebanNotationSet.LoadApplicationServletAnnotations（WebanNotationSet.java:263)在set.java:142)在org.apache.catalina.startup.webanNotationset.loadApplicationAnnotations(webanNotationset.java:67)在org.apache.catalina.startup.contextconfig.applicationAnnotationsconfig（contextconfig.applicationAnnotationsconfig（contextconfig.java:405)在org.apache.catalina.startup.contextconfig.configrestart（contextconfig.java:881)在org.apache.catalina.startup.contextconfig.lifecycleevent（contextconfig.lifecycleevent（contextconfig.java:376)在.apache.catalina.util.LifeCycleBase.FireliFecycleEvent（LifeCycleBase.java:90)在org.apache.catalina.core.StandardContext.StartInterral（StandardContext.java:5322)在org.apache.catalina.util.LifeCycleBase.Start（LifeCycleBase.java:150)...6其他原因：java.lang.ClassNotFoundexception：javax.ws.rs.ProcessingException在org.apache.catalina.Loader.WebAppClassLoader.LoadClass（WebAppClassLoader.java:1702)在47）...还有20个

严重：所需的服务器组件无法启动，因此Tomcat无法启动。异常：无法启动组件[StandardServer[8005]]（位于org.apache.Catalina.util.LifecycleBase.start(LifecycleBase.154)（位于org.apache.Catalina.Startup.Catalina.start(Catalina.java:691)（位于sun.reflect.nativeMethodAccessorImpl.Invoke0（原生方法）（位于sun.reflect.nativeMethodAccessorImpl.Invoke)(nativeMethodAccessorImpl.java:94)（位于apache.Catalina.startup.bootstrap.start（bootstrap.java:322)位于org.apache.Catalina.startup.bootstrap.main（bootstrap.java:456),原因是：org.apache.Catalina.LifecycleException：无法启动组件[StandardService[Catalina]]位于org.apache.Catalina.core.start(StandardServer.java:154)，原因是org.apache.Catalina.util.Lifecyclebase.start(Lifecyclebase.java:150).StartInternal(StandardServer.java:732).apache.Catalina.LifeCycleException：无法在org.apache.Catalina.util.LifeCycleBase.start（LifeCycleBase.java:154)在org.apache.Catalina.core.StandardService.StartInterral（StandardService.java:443)在org.apache.Catalina.util.LifeCycleBase.start（LifeCycleBase.java:150)...|9其他原因：org.apache.Catalina.LifeCycleException：在org.apache.Catalina.core.LifeCycleBase.start（LifeCycleBase.start（LifeCycleBase.start（re.standardengine.startinternal（standardengine.java:302)，在org.apache.Catalina.util.lifecyclebase.start（lifecyclebase.java:150)...11其他

我用的是泽西2.X。这是我的罐子：

javax.ws.rs-api-2.0-m10.jar

泽西-client.jar

Jersey-Common.Jar

<?xml version="1.0" encoding="UTF-8"?>
<web-app id="WebApp_ID" version="3.0" 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">
<display-name>HelloWorldRestService</display-name>
<servlet>
    <servlet-name>java.helloworldrestservice.resources.HelloWorldApplication</servlet-name>
    <servlet-class>org.glassfish.jersey.servlet.ServletContainer</servlet-class>

    <!-- Register JAX-RS Application, if needed. -->
    <init-param>
        <param-name>javax.ws.rs.Application</param-name>
        <param-value>java.helloworldrestservice.resources.HelloWorldApplication</param-value>
    </init-param>

    <!-- Register resources and providers under my.package. -->
    <init-param>
        <param-name>jersey.config.server.provider.packages</param-name>
        <param-value>java.helloworldrestservice.resources</param-value>
    </init-param>

    <!-- Enable Tracing support. -->
    <init-param>
        <param-name>jersey.config.server.tracing</param-name>
        <param-value>ALL</param-value>
    </init-param>

    <load-on-startup>1</load-on-startup>
</servlet>

<servlet-mapping>
    <servlet-name>java.helloworldrestservice.resources.HelloWorldApplication</servlet-name>
    <url-pattern>/*</url-pattern>
</servlet-mapping>

package java.helloworldrestservice.resources;

import java.util.HashSet;
import java.util.Set;
import javax.ws.rs.core.Application;


public class HelloWorldApplication extends Application 
{

@Override
public Set<Class<?>> getClasses()
{
    //log.info("starting the HelloWorld application...");
    Set<Class<?>> set = new HashSet<Class<?>>();
    set.add(HelloWorld.class);
    return set;
}
}

package java.helloworldrestservice.resources;


import javax.ws.rs.GET;
import javax.ws.rs.Path;
import javax.ws.rs.Produces;
import javax.ws.rs.core.MediaType;

@Path("/hello")
public class HelloWorld {
@GET
@Produces(MediaType.TEXT_PLAIN)
public String sayPlainTextHello()
{
    return "Hello World!!";
}
}

怎么啦？为什么我会看到这个丢失的ProcessingException类，以及如何摆脱这个错误？

多谢！

Answer 1

看起来javax.ws.rs.ProcessingException是javax.ws.rs包的一部分，该包是rest的一部分，但默认情况下不随Java或Tomcat一起提供。

它似乎包含在javax.ws.rs-api-2.0.jar中。Maven存储库中还有一个javax.ws.rs版本。

看起来Jersey引用了这个类，但没有实现这个类。