Jersey：HTTP状态500

Question

我在浏览器中遇到以下错误

HTTP Status 500 – Internal Server Error
Type Exception Report

Message Servlet.init() for servlet [jersey-serlvet] threw exception

Description The server encountered an unexpected condition that prevented it from fulfilling the request.

Exception

javax.servlet.ServletException: Servlet.init() for servlet [jersey-serlvet] threw exception
    org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:541)
    org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92)
    org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:678)
    org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343)
    org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:367)
    org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65)
    org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:860)
    org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1598)
    org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
    java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
    java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
    org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
    java.base/java.lang.Thread.run(Thread.java:830)

Root Cause

java.lang.IllegalArgumentException
    jersey.repackaged.org.objectweb.asm.ClassReader.<init>(ClassReader.java:170)
    jersey.repackaged.org.objectweb.asm.ClassReader.<init>(ClassReader.java:153)
    jersey.repackaged.org.objectweb.asm.ClassReader.<init>(ClassReader.java:424)
    org.glassfish.jersey.server.internal.scanning.AnnotationAcceptingListener.process(AnnotationAcceptingListener.java:170)
    org.glassfish.jersey.server.ResourceConfig.scanClasses(ResourceConfig.java:908)
    org.glassfish.jersey.server.ResourceConfig._getClasses(ResourceConfig.java:862)
    org.glassfish.jersey.server.ResourceConfig.getClasses(ResourceConfig.java:768)
    org.glassfish.jersey.server.ResourceConfig$RuntimeConfig.<init>(ResourceConfig.java:1199)
    org.glassfish.jersey.server.ResourceConfig$RuntimeConfig.<init>(ResourceConfig.java:1171)
    org.glassfish.jersey.server.ResourceConfig.createRuntimeConfig(ResourceConfig.java:1167)
    org.glassfish.jersey.server.ApplicationHandler.<init>(ApplicationHandler.java:344)
    org.glassfish.jersey.servlet.WebComponent.<init>(WebComponent.java:339)
    org.glassfish.jersey.servlet.ServletContainer.init(ServletContainer.java:170)
    org.glassfish.jersey.servlet.ServletContainer.init(ServletContainer.java:362)
    javax.servlet.GenericServlet.init(GenericServlet.java:158)
    org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:541)
    org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92)
    org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:678)
    org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343)
    org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:367)
    org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65)
    org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:860)
    org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1598)
    org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
    java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
    java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
    org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
    java.base/java.lang.Thread.run(Thread.java:830)

我正在Intellij中开发JERSEY Web服务，仅在Intellij中配置的tomcat中进行部署。已成功部署。来自tomcat的日志

Connected to server
[2020-01-04 08:19:50,758] Artifact Tarkshala-Scholars-Engine:war exploded: Artifact is being deployed, please wait...
04-Jan-2020 08:19:54.184 INFO [RMI TCP Connection(2)-127.0.0.1] org.apache.jasper.servlet.TldScanner.scanJars At least one JAR was scanned for TLDs yet contained no TLDs. Enable debug logging for this logger for a complete list of JARs that were scanned but no TLDs were found in them. Skipping unneeded JARs during scanning can improve startup time and JSP compilation time.
[2020-01-04 08:19:54,932] Artifact Tarkshala-Scholars-Engine:war exploded: Artifact is deployed successfully
[2020-01-04 08:19:54,932] Artifact Tarkshala-Scholars-Engine:war exploded: Deploy took 4,174 milliseconds

我的web.xml如下：

<web-app>
  <display-name>Archetype Created Web Application</display-name>
  <servlet>
    <servlet-name>jersey-serlvet</servlet-name>
    <servlet-class>org.glassfish.jersey.servlet.ServletContainer</servlet-class>
    <init-param>
      <param-name>jersey.config.server.provider.packages</param-name>
      <param-value>com.tarkshala.scholars.engine.webservices</param-value>
    </init-param>
    <load-on-startup>1</load-on-startup>
  </servlet>

  <servlet-mapping>
    <servlet-name>jersey-serlvet</servlet-name>
    <url-pattern>/*</url-pattern>
  </servlet-mapping>
</web-app>

我的服务是

@Path("/authentication")
public class AuthenticationService extends SpringApplication {

    @GET
    @Path("/greet")
    @Produces(MediaType.APPLICATION_JSON)
    public Response greet(){

        return getBean(AuthenticationServiceHandler.class).greet();
    }
}

对我来说一切都很好，不确定为什么不起作用。我击中http://localhost:8080/authentication/greet

Answer 1

我不确定是否可以解决问题。但是我认为jar缺失的问题。

请在您的配置中添加jersey-servlet jar

jar链接：https://mvnrepository.com/artifact/com.sun.jersey/jersey-servlet/1.19