JAX-RS @PathParm Web service Example

In this tutorial we are going to see how to pass parameter to RESTful web service via URL using JAX-RS @PathParam

Create maven web application project and add Jersey dependency in pom.xml. Find Jersey 2.x maven dependency configuration below. If you are new to maven refer our maven tutorials.

Jersey 2.x dependency in pom.xml

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
  <name>RestTutorials Maven Webapp</name>
      <!-- JAX-RS -->
        <!-- Jersey 2.19 -->


package com.ehowtonow.webservice;

import javax.ws.rs.GET;
import javax.ws.rs.Path;
import javax.ws.rs.PathParam;
import javax.ws.rs.core.Response;

public class PathParamService {

 public Response getTutorial(@PathParam("index") String index) {
  return Response
    .entity("The Tutorial at Index " + index
      + " is RESTful webservice").build();

 public Response getTutorial(@PathParam("site") String site,
   @PathParam("tutorial") String tutorial, @PathParam("rank") String rank) {
  return Response
    .entity("Web Site : " + site + "  Tutorial : " + tutorial
      + " Rank : " + rank).build();


In above class @PathParam used to get the value of URL parameter that is defined in @Path expression into Java Class.

Configure Jersey 2.x Servlet dispatcher

 "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
 "http://java.sun.com/dtd/web-app_2_3.dtd" >

	<display-name>Restful Webservice Example</display-name>


Now you can run the service and access the service by calling the following URL

http://localhost:8080/RestTutorials/rest/tutorials/1 – to access first web service api

http://localhost:8080/RestTutorials/rest/tutorials/wwww.ehowtonow.com/Java%20Tutorial/1 – to access second web service api with multiple path params

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