jersey报错 not contain any root resource classes.

web.xml的配置
<!DOCTYPE web-app PUBLIC
"-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
"http://java.sun.com/dtd/web-app_2_3.dtd" >


Archetype Created Web Application

jerseyws
com.sun.jersey.spi.container.servlet.ServletContainer

com.sun.jersey.config.property.resourceConfigClass
com.sun.jersey.api.core.PackagesResourceConfig



com.sun.jersey.config.property.packages
net.jianxi.tutorials.jerseyws

1


jerseyws
/rest/*


报错信息

 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:100)
    com.sun.jersey.server.impl.application.WebApplicationImpl._initiate(WebApplicationImpl.java:1013)
    com.sun.jersey.server.impl.application.WebApplicationImpl.access$600(WebApplicationImpl.java:153)
    com.sun.jersey.server.impl.application.WebApplicationImpl$11.f(WebApplicationImpl.java:652)
    com.sun.jersey.server.impl.application.WebApplicationImpl$11.f(WebApplicationImpl.java:649)
    com.sun.jersey.spi.inject.Errors.processWithErrors(Errors.java:177)
    com.sun.jersey.server.impl.application.WebApplicationImpl.initiate(WebApplicationImpl.java:649)
    com.sun.jersey.server.impl.application.WebApplicationImpl.initiate(WebApplicationImpl.java:644)
    com.sun.jersey.spi.container.servlet.ServletContainer.initiate(ServletContainer.java:428)
    com.sun.jersey.spi.container.servlet.ServletContainer$InternalWebComponent.initiate(ServletContainer.java:277)
    com.sun.jersey.spi.container.servlet.WebComponent.load(WebComponent.java:573)
    com.sun.jersey.spi.container.servlet.WebComponent.init(WebComponent.java:211)
    com.sun.jersey.spi.container.servlet.ServletContainer.init(ServletContainer.java:332)
    com.sun.jersey.spi.container.servlet.ServletContainer.init(ServletContainer.java:496)
    javax.servlet.GenericServlet.init(GenericServlet.java:212)
    org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)
    org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:293)
    org.apache.coyote.http11.Http11AprProcessor.process(Http11AprProcessor.java:879)
    org.apache.coyote.http11.Http11AprProtocol$Http11ConnectionHandler.process(Http11AprProtocol.java:610)
    org.apache.tomcat.util.net.AprEndpoint$Worker.run(AprEndpoint.java:1777)
    java.lang.Thread.run(Thread.java:745)

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