Friday, May 22, 2015

@PathParam Annotation

In this example we are going to use @PathParam annotation. For this example we are going to have the following files:

1.                   WEB.xml
2.                   PathParamExample.java 

 

WEB.xml

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns="http://java.sun.com/xml/ns/javaee"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" id="WebApp_ID" version="2.5">
  <display-name>com.tushar.jersey.Project</display-name>
  <welcome-file-list>
    <welcome-file>index.html</welcome-file>
    <welcome-file>index.htm</welcome-file>
    <welcome-file>index.jsp</welcome-file>
    <welcome-file>default.html</welcome-file>
    <welcome-file>default.htm</welcome-file>
    <welcome-file>default.jsp</welcome-file>
  </welcome-file-list>

  <servlet>
           <servlet-name>jersey-serlvet</servlet-name>
           <servlet-class>com.sun.jersey.spi.container.servlet.ServletContainer </servlet-class>
           <init-param>
                      <param-name>com.sun.jersey.config.property.packages</param-name>
                      <param-value>com.tushar.jersey.Project</param-value>
           </init-param>
           <load-on-startup>1</load-on-startup>
  </servlet>

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

</web-app>

PathParamExample.java


package com.tushar.jersey.Project;

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

@Path("/employee")
public class PathParamExample {

                @GET
                @Path("{name}")
                public Response getUserByName(@PathParam("name") String name) {
                                return Response.status(200).entity("Employee name is : " + name).build();

                }

}


Run the Server: 

Start the server and paste the following URL in the browser:

URI Matching and Parameter

The value within an open brace “{” and close brace “}”, is represents a parameter, and can be access with@PathParam.

URI :  http://localhost:8080/com.tushar.jersey.Project/rest/employee/Tushar


Output:












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