<?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>restDemo</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 REST Service</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.huawei.rest.resources</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>

</web-app>

package com.huawei.rest.resources;

import javax.ws.rs.GET;

import javax.ws.rs.Path;

import javax.ws.rs.Produces;

import javax.ws.rs.PathParam;

import javax.ws.rs.core.MediaType;  

@Path("/hello")

public class HelloResource {

    @GET

    @Produces(MediaType.TEXT_PLAIN)

    public String sayHello() {

        return "hello jersey , first demo" ;

    }  

    @GET

    @Path("/{param}")

    @Produces("text/plain;charset=UTF-8")

    public String sayHelloToUTF8(@PathParam("param") String username) {

        return "Hello " + username;

    }  

    @GET

    @Path("/getuser")

    @Produces(MediaType.APPLICATION_JSON)

    public User getUserJson() {

     User user  = new User();

     user.setAge(27);

     user.setUserid("005");

     user.setUsername("Fmand");

     return user;

    }

}

package com.huawei.rest.resources;

import javax.xml.bind.annotation.XmlRootElement;

@XmlRootElement

public class User {

	int age;

	String userid;

	String username;

	public int getAge() {

		return age;

	}

	public void setAge(int age) {

		this.age = age;

	}

	public String getUserid() {

		return userid;

	}

	public void setUserid(String userid) {

		this.userid = userid;

	}

	public String getUsername() {

		return username;

	}

	public void setUsername(String username) {

		this.username = username;

	}

}