Hello World JAX-RS Jersey Example with Maven

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Hello World JAX-RS Jersey Example with MavenHello World JAX-RS Jersey Example with Maven eclipse Tomcat. Learn step by step JAX-RS Jersey.

1. Create Maven project

Maven web projects can be created in a different ways. I have chosen via Eclipse for hello world JAX-RS Jersey with maven and tomcat.

1. File -> New -> Others -> Maven -> Maven Project -> click Next -> choose maven-archetype-webapp
or
2. In Eclipse IDE create “Dynamic Web Project” and select Project -> write click on project -> select Configure -> Convert Maven Project.

2. Environment used as:

  • JDK 7
  • Eclipse Luna 4.4.1
  • Tomcat 7
  • Maven 3.2.3

3. Project folder structure as

Hello World Jersey Project structure
Hello World Jersey Project structure

4. Maven pom.xml for JAX-RS Jersey hello world

Add dependency of jersey server specific jar of your suitable version. Maven pull required dependency from specified repository.


	4.0.0
	com.mysoftkey.jaxrs
	jerseyhelloworld
	war
	0.0.1-SNAPSHOT
	jerseyhelloworld Maven Webapp
	http://maven.apache.org

	
		1.9
	

	
		
			com.sun.jersey
			jersey-server
			${jersey.version}
		

	

	
	
		src/main/java
		
			
				maven-compiler-plugin
				3.1
				
					1.6
					1.6
				
			
			
				maven-war-plugin
				2.4
				
					WebContent
					false

5. web.xml

We need to add ServletContainer entry in our Deployment structure i.e. web.xml here. And package we need to specify in init-param , where our services class resides. When web server tomcat start, the instance of ServletContainer loads into servlet container.



  jax-rs
  
  
	jerseySerlvet
	com.sun.jersey.spi.container.servlet.ServletContainer
	   
		com.sun.jersey.config.property.packages
		com.mysoftkey.jaxrs
	   
	   1
	

	
		jerseySerlvet
		/*
	
	
  
    index.jsp

6. HelloWorldService class

package com.mysoftkey.jaxrs;

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

/**
 * This is hello jersey JAX-RS implementation.
 * 
 * @author Ranjeet Jha
 *
 */
@Path("/hello")
public class HelloWorldService {

	/**
	 * This is simple jersey hello world example
	 * 
	 * @param msg
	 * @return
	 */
	@GET
	@Path("/{param}")
	public Response helloJersey(@PathParam("param") String msg) {
 
		String output = "Hello, Jersey " + msg;
		return Response.status(200).entity(output).build();
	}
	
}

7. Run application

open browser and type url as : http://localhost:8080/jerseyhelloworld/hello/ranjeet
output on browser as :

Hello, JAX-RS Jersey ranjeet

8. Download Source code

Download project by click here

9. References

Comments or suggestions are welcome here to improve this post.


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