HTTP Status 404 when running simple RESTful web service in Java using Jersey

问题

I am getting HTTP Status 404 when running simple RESTful web service in Java using Jersey. I am following the tutorial REST with Java (JAX-RS) using Jersey. I have copied all the jars that I downloaded from Jersey download site to WEB-INF/lib folder of my project(please see the screenshot for jars).

When I run the application from eclipse development environment Eclipse Console shows that Tomcat was started successfully. My web-app is deployed and I can see index.html coming up. But hitting http://localhost:8080/com.kj.rest.jersey.first/ gives Http Status 404.

My Environment:

Spring Tool Suite as my eclipse dev environment
Jersey 2.22.2 jars
Apache Tomcat v8.0

Please note I am not using Maven in my project and I also looked at other similar questions here but none of them solved my issue.

What am I missing, where should I look for the issue, which logs?

回答1:

 <servlet>
    <servlet-name>Jersey REST Service</servlet-name>
    <servlet-class>org.glassfish.jersey.servlet.ServletContainer</servlet-class>
     <!-- Register resources and providers under com.vogella.jersey.first package. -->
    <init-param>
        <param-name>jersey.config.server.provider.packages</param-name>
        <param-value>com.*******</param-value>
    </init-param>

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

  </servlet>
  <servlet-mapping>
    <servlet-name>Jersey REST Service</servlet-name>
    <url-pattern>/rest/*</url-pattern>


  </servlet-mapping>

回答2:

The mistake that I was making was to not specify the service name(specified by @Path annotation) in the URL. After doing that it worked.

So essentially the URL to hit should be http://localhost:8080/com.kj.rest.jersey.first/rest/path_from_rest_class and I missed the path_from_rest_class earlier.

来源：https://stackoverflow.com/questions/37177986/http-status-404-when-running-simple-restful-web-service-in-java-using-jersey

标签

eclipse

web-services

rest

jersey

tomcat8