Question

任何人都可以帮助我..？我试图用JAX-RS创建一个Web服务，但它给了我这个例外：

SEVERE: Missing dependency for field: private    org.glassfish.jersey.server.wadl.WadlApplicationContext

org.glassfish.jersey.server.wadl.internal.WadlResource.wadlContext

这是我的java classe的代码：

@Path("/DataJson")
public class Ressources {

@GET
@Produces(MediaType.APPLICATION_JSON)
public Response test(){

String result = "@Produces(\"application/json\") Output: \n\nF to C Converter Output:     \n\n TEST SUCCESFUL";

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

--- Web.xml部分：

<servlet>
    <servlet-name>Jersey Web Application</servlet-name>
    <servlet-class>com.sun.jersey.spi.container.servlet.ServletContainer</servlet-class>

</servlet>
<servlet-mapping>
    <servlet-name>Jersey Web Application</servlet-name>
    <url-pattern>/ws/*</url-pattern>
</servlet-mapping>

----使用的jar是：

javax.annotation-api-1.2.jar
javax.ws.rs-API-2.0.jar
球衣束-1.17.jar
Jersey的客户端 - 2.0.jar
Jersey的共2.0.jar
Jersey的容器的servlet.jar
Jersey的多部分1.14.jar
球衣 - 服务器 - 2.0.jar
json.jar
mimepull-1.9.jar
ASM-3.3.1.jar

-----这正是我的例外：

 SEVERE: Missing dependency for field: private   org.glassfish.jersey.server.wadl.WadlApplicationContext org.glassfish.jersey.server.wadl.internal.WadlResource.wadlContext
août 23, 2013 5:30:52 PM org.apache.catalina.core.ApplicationContext log
Grave: StandardWrapper.Throwable
com.sun.jersey.spi.inject.Errors$ErrorMessagesException
at com.sun.jersey.spi.inject.Errors.processErrorMessages(Errors.java:170)
at com.sun.jersey.spi.inject.Errors.postProcess(Errors.java:136)
at com.sun.jersey.spi.inject.Errors.processWithErrors(Errors.java:199)
at com.sun.jersey.server.impl.application.WebApplicationImpl.initiate(WebApplicationImpl.java:770)
at com.sun.jersey.server.impl.application.WebApplicationImpl.initiate(WebApplicationImpl.java:765)
at com.sun.jersey.spi.container.servlet.ServletContainer.initiate(ServletContainer.java:489)
at com.sun.jersey.spi.container.servlet.ServletContainer$InternalWebComponent.initiate(ServletContainer.java:319)
at com.sun.jersey.spi.container.servlet.WebComponent.load(WebComponent.java:605)
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:212)
at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1206)
at org.apache.catalina.core.StandardWrapper.allocate(StandardWrapper.java:827)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:129)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:293)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:859)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:602)
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)
at java.lang.Thread.run(Thread.java:722)

août 23, 2013 5:30:52 PM org.apache.catalina.core.StandardWrapperValve invoke
Grave: Exception lors de l'allocation pour la servlet Jersey Web Application
com.sun.jersey.spi.inject.Errors$ErrorMessagesException
at com.sun.jersey.spi.inject.Errors.processErrorMessages(Errors.java:170)
at com.sun.jersey.spi.inject.Errors.postProcess(Errors.java:136)
at com.sun.jersey.spi.inject.Errors.processWithErrors(Errors.java:199)
at com.sun.jersey.server.impl.application.WebApplicationImpl.initiate(WebApplicationImpl.java:770)
at com.sun.jersey.server.impl.application.WebApplicationImpl.initiate(WebApplicationImpl.java:765)
at com.sun.jersey.spi.container.servlet.ServletContainer.initiate(ServletContainer.java:489)
at com.sun.jersey.spi.container.servlet.ServletContainer$InternalWebComponent.initiate(ServletContainer.java:319)
at com.sun.jersey.spi.container.servlet.WebComponent.load(WebComponent.java:605)
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:212)
at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1206)
at org.apache.catalina.core.StandardWrapper.allocate(StandardWrapper.java:827)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:129)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:293)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:859)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:602)
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)
at java.lang.Thread.run(Thread.java:722)

Answer 1

好像你缺少一个init参数，你可以在其中指定搜索带注释的WS资源的包。

<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>package.to.your.class</param-value>
    </init-param>
    <load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
    <servlet-name>Jersey Web Application</servlet-name>
    <url-pattern>/ws/*</url-pattern>
</servlet-mapping>

Answer 2

如果您的问题没有解决，请检查您是否在包中声明了公共默认构造函数，并添加了init param标记。在课堂上添加以下内容。 public Ressources（）{ //默认构造函数enter code here }

严重：缺少字段依赖：private org.glassfish.jersey.server.wadl.WadlApplicationContext

2 个答案: