JAX-RS @GET RESTful webservice

In this tutorial we are going to see  about RESTful web service JAX-RS @GET annotation.


Ask your questions in eHowToNow Forum

Post your technical, non-technical doubts, questions in our site. Get answer as soon as possible, meanwhile you can help others by answering, unanswered questions.
To Ask new Question : Ask Question
Check our existing discussions : Questions & Answers

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">
  <modelVersion>4.0.0</modelVersion>
  <groupId>com.ehowtonow</groupId>
  <artifactId>RestTutorials</artifactId>
  <packaging>war</packaging>
  <version>0.0.1-SNAPSHOT</version>
  <name>RestTutorials Maven Webapp</name>
  <url>http://maven.apache.org</url>
   <properties>
        <jersey2.version>2.19</jersey2.version>
        <jaxrs.version>2.0.1</jaxrs.version>
    </properties>
  <dependencies>
      <!-- JAX-RS -->
        <dependency>
            <groupId>javax.ws.rs</groupId>
            <artifactId>javax.ws.rs-api</artifactId>
            <version>${jaxrs.version}</version>
        </dependency>
        <!-- Jersey 2.19 -->
        <dependency>
            <groupId>org.glassfish.jersey.containers</groupId>
            <artifactId>jersey-container-servlet</artifactId>
            <version>${jersey2.version}</version>
        </dependency>
        <dependency>
            <groupId>org.glassfish.jersey.core</groupId>
            <artifactId>jersey-server</artifactId>
            <version>${jersey2.version}</version>
        </dependency>
        <dependency>
            <groupId>org.glassfish.jersey.core</groupId>
            <artifactId>jersey-client</artifactId>
            <version>${jersey2.version}</version>
        </dependency>
  </dependencies>
  <build>
    <finalName>RestTutorials</finalName>
  </build>
</project>

RESTfulGet.java

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;

@Path("/getservice")
public class RESTfulGet {

 @GET
 @Path("{site}")
 public Response getSite(@PathParam("site") String site) {
  return Response.status(200).entity("Web Site : " + site).build();

 }
}

Configure Jersey 2.x Servlet dispatcher

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

<web-app>
	<display-name>Restful Webservice Example</display-name>
	<servlet>
		<servlet-name>jersey-serlvet</servlet-name>
		<servlet-class>org.glassfish.jersey.servlet.ServletContainer</servlet-class>
        <init-param>
             <param-name>jersey.config.server.provider.packages</param-name>
			<param-value>com.ehowtonow.webservice</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>

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

http://localhost:8080/RestTutorials/rest/getservice/ehowtonow.com


Ask your questions in eHowToNow Forum

To Ask new Question : Ask Question
Check our existing discussions : Questions & Answers

Posts You may Like

  1. Java 8 Sort Map by Key
  2. JAX-RS @MatrixParam Restful Webservice
  3. Java Tutorial – First Java Program
  4. JAX-RS @PATH for URI – Jersey
  5. How to Read File using BufferedReader
  6. Jackson Streaming API to Write JSON
  7. JAX-RS @PathParm Web service Example
  8. How to rotate element of List
  9. How to Read file using FileInputStream
  10. Java 8 Convert a Stream to List
  11. RESTful Web service to consume JSON and Produce XML – Jersey 1.x
  12. How to shuffle the element of collection (List)
  13. JSoup DOM methods
  14. JAX-RS Web service to Consume JSON using Jersey 1.x
  15. Java Data type and Identifier

Be the first to comment

Leave a Reply

Your email address will not be published.


*