I am not able to get parameter value in @PathParam("userID") of REST webService

Greenhorn

Posts: 17

posted 8 years ago

Respected All,
I am sending request to url as follows::

http://localhost:8084/REST_Jersey_Demo/resources/demo?userID=100

It shows me in NetBeans 7.0 HTTP SERVER MONITOR that i have got same value of userID parameter.

But when i am using it it shows me NULL value for same...!

What can be the reason ?

Can anyone help me in this ?

/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package WS;

import javax.ws.rs.core.Context;
import javax.ws.rs.core.UriInfo;
import javax.ws.rs.PathParam;
import javax.ws.rs.Consumes;
import javax.ws.rs.PUT;
import javax.ws.rs.Path;
import javax.ws.rs.GET;
import javax.ws.rs.HeaderParam;
import javax.ws.rs.POST;
import javax.ws.rs.Produces;

/**
 * REST Web Service
 *
 * @author Rushi
 */
@Path("demo")
public class Demo1 {

int userID;
    
    public Demo1(@PathParam("userID") int userID)
    {
        this.userID = userID ; 
        System.out.println("UserID GOT... :: "+this.userID);
    }
    
    @Context
    private UriInfo context;

@GET
 @Produces("text/html")
 public String getUser() { 
 System.out.println("UserID::"+userID);
 return "<html><body> Hiiii, Welcome --"+userID+"</body></html>";
 
 }
/*
 @POST
 @Produces("text/html")
 public String getU()
 {
 return "<html><body>Call From Post</body></html>";
 }
 */
 
 /**
 * PUT method for updating or creating an instance of Demo1
 * @param content representation for the resource
 * @return an HTTP response with content of the updated or created resource.
 */
 @PUT
 @Consumes("text/html")
 public void putHtml(String content) {
 }
 
}

Parameter.png

Mike Zal

Ranch Hand

Posts: 144

I like...

posted 8 years ago

I am not a rest expert, but based a few reference materials I think I can make a few improvements

1) You need to specify the param name in @Path annotation
2) You should be using the default constructor for the class
3) You need to specify the @PathParam annotation on the methods that have the HTML annotations

Try the following changes:

The corresponding URL: http://localhost:8084/REST_Jersey_Demo/resources/demo/100

---------------------------------------------------------------------------------------------------------------------
If you are dead set of using query parameters you can try the following

In this case the original url should still work

OCJP6, OCWCD5

Rushi Patel

Greenhorn

Posts: 17

posted 8 years ago

Yes...!
Its working 100% ....!

I got solution just after posting issue here.....!!!

But you are correct....!

Thanks...!

Anurag Verma

Ranch Hand

Posts: 171

I like...

posted 8 years ago

One more option is like-

@Path("demo/{someContent}")
public Demo1(@PathParam("someContent") String someContent)
{
System.out.println("GOT... :: "+someContent);
}

modify variables & datatypes as per your need here.

Yes it can be done, we just have to figure out how.

With a little knowledge, a cast iron skillet is non-stick and lasts a lifetime.