如何从jersey的属性文件中指定路径值？

Question

我希望路径不应该硬编码，而应该从属性中选取，以便我们可以根据需要进行更改。

以下代码有效：---

@Path("ws/{version}")
public class DesignationResource {

  @PathParam("version") String version = 
              Constants.API_VERSION; //(read from property file in class Constants)
  @PathParam("servicename_designationList") String servicename_designationList=
              Constants.API_POST_CITYLIST_NAME ; //(read from property file in class Constants)



  @Path("{servicename_designationList}")
  @Produces(MediaType.APPLICATION_JSON)
    public Response getDesignations()
    {
       /**
         ...CODES...
        */
    }
} 

但是，如果类有两个方法，则它不起作用并抛出异常

代码：---

@Path("ws/{version}")
public class DesignationResource {

  @PathParam("version") String version = 
              Constants.API_VERSION; //(read from property file in class Constants)
  @PathParam("servicename_designationList") String servicename_designationList=
              Constants.API_POST_CITYLIST_NAME ; //(read from property file in class Constants)
  @PathParam("servicename_designationListId") String servicename_designationListId=
              Constants.API_POST_CITYLISTID_NAME ; //(read from property file in class Constants)



  @Path("{servicename_designationList}")
  @Produces(MediaType.APPLICATION_JSON)
    public Response getDesignations()
    {
       /**
         ...CODES...
        */
    }

  @Path("{servicename_designationListId}")
  @Produces(MediaType.APPLICATION_JSON)
    public Response getDesignationsId()
    {
       /**
         ...CODES...
        */
    }
} 

异常记录为：-----

org.glassfish.jersey.server.model.ModelValidationException: Validation of the application resource model has failed during application initialization.  
[[FATAL] A resource model has ambiguous (sub-)resource method for HTTP method GET and input mime-types as defined by @Consumes and @Produces annotations at Java methods public javax.ws.rs.core.Response DesignationResource.getDesignations() and public javax.ws.rs.core.Response DesignationResource.getDesignationsId() at matching regular expression /([^/]+?). These two methods produces and consumes exactly the same mime-types and therefore their invocation as a resource methods will always fail.; source='org.glassfish.jersey.server.model.RuntimeResource@7e5ba613', [FATAL] A resource model has ambiguous (sub-)resource method for HTTP method GET and input mime-types as defined by @Consumes and @Produces annotations at Java methods public javax.ws.rs.core.Response source='org.glassfish.jersey.server.model.RuntimeResource@7e5ba613']  
  at org.glassfish.jersey.server.ApplicationHandler.initialize(ApplicationHandler.java:465)  
  ...

Answer 1

您在方法中使用相同的路径URL（servicename_designationListId）。 为您的方法提供不同的路径，如下所示。

@Path("{servicename_designations}")
  @Produces(MediaType.APPLICATION_JSON)
    public Response getDesignations()
    {
       /**
         ...CODES...
        */
    }

  @Path("{servicename_designationListId}")
  @Produces(MediaType.APPLICATION_JSON)
    public Response getDesignationsId()
    {
       /**
         ...CODES...
        */
    }

Answer 2

正如stacktrace所说，路径必须是唯一的（或者您使用不同的媒体类型）。 我认为，您想执行以下操作：

@Path( Constants.API_POST_CITYLIST_NAME )
@Produces( MediaType.APPLICATION_JSON )
public Response getDesignations()
{
   /**
     ...CODES...
    */
}

@Path( Constants.API_POST_CITYLISTID_NAME )
@Produces( MediaType.APPLICATION_JSON )
public Response getDesignationsId()
{
   /**
     ...CODES...
    */
}

Answer 3

使用程序化API来注册资源。 它将允许您以无法通过注释管理的方式在运行时动态注册事物。