Jersey Based RestFul Web service integrated with Spring example Required

[Maya sekar]

Hi ,

I am trying to build a Jersey Based Rest Web servuce with Spring but I couldn't find an example online that works... Could someone share a simple sample if possible?
Thanks
Have a nice day

[Maya sekar]

This is what I tried,

import javax.xml.bind.annotation.XmlRootElement;

@XmlRootElement
public class Message {
	private String msg;
	public String getMsg() {
		return msg;
	}
	public void setMsg(String msg) {
		this.msg = msg;
	}
}

import javax.ws.rs.*;
import javax.ws.rs.core.Response;

import org.springframework.context.ApplicationContext;
import org.springframework.context.annotation.Scope;
import org.springframework.context.support.ClassPathXmlApplicationContext;
import org.springframework.stereotype.Component;
@Component
@Scope("request")
@Path("/HelloWorld")
public class HelloWorld {
	@GET
	@Produces("application/xml") 
	@Path("/sayHello")
	public Response sayHello()
	
	{
		ApplicationContext context=new ClassPathXmlApplicationContext("applicationContext.xml");
		Message obj=(Message) context.getBean("message");
		String msg=obj.getMsg();
		return Response.status(200).entity(msg).build();
	}
}

applicationContext.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          xmlns:context="http://www.springframework.org/schema/context"
          xsi:schemaLocation="
   http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.5.xsd
   http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-2.5.xsd">
       <context:component-scan base-package="example.jersey.spring"/>
   </beans>
 

My 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" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" 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>SampleWebApp</display-name>

  
  
  <!-- SPRING STARTS HERE -->
  <servlet>
		<servlet-name>spring</servlet-name>
		<servlet-class>
			com.sun.jersey.spi.spring.container.servlet.SpringServlet
		</servlet-class>
		<load-on-startup>1</load-on-startup>
	</servlet>
	
		
	<servlet-mapping>
		<servlet-name>spring</servlet-name>
		<url-pattern>/</url-pattern>
	</servlet-mapping>
	
	
	 <context-param>
       <param-name>contextConfigLocation</param-name>
       <param-value>/WEB-INF/applicationContext.xml</param-value>
   </context-param>
 
	
	 <listener>
          <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
   </listener>
   <listener>
          <listener-class>org.springframework.web.context.request.RequestContextListener</listener-class>
   </listener>


    <!-- SPRING STARTS HERE -->
    
  
  <!-- JERSEY STARTS HERE -->
   <servlet>
           <servlet-name>JerseyTest</servlet-name>
            <servlet-class>
                 com.sun.jersey.spi.container.servlet.ServletContainer
            </servlet-class>
        <load-on-startup>1</load-on-startup>
    </servlet>
    <servlet-mapping>
           <servlet-name>JerseyTest</servlet-name>
        <url-pattern>/*</url-pattern>
    </servlet-mapping>
    
   <!-- JERSEY ENDS HERE -->
   
   
</web-app>

There are probably tons of mistakes. I couldn't find an example I could easily understand so I resorted to pulling out pieces of code from various examples and patching it together, Frankenstein Style
Any help is appreciated.

Thanks in advance.

[Ulf Dittmer]

What would the "integration" with Spring do? If you have a web app -whether Spring-based or not- you should have no problem adding Jersey to it.

[Maya sekar]

Hi,

By integration I mean that I am trying to write a Jersey based Rest Web Service using Spring Framework....

[Ulf Dittmer]

Yes, but what would Spring add that Jersey/JAX-RS doesn't do? In other words, what exactly are you trying to implement with Spring but struggling to get done? Spring doesn't do REST, Jersey/JAX-RS does. You should have no problems using Spring's DI in your JAX-RS classes, if that's what you mean.

[Mark Spritzler]

Ulf Dittmer wrote:Yes, but what would Spring add that Jersey/JAX-RS doesn't do? In other words, what exactly are you trying to implement with Spring but struggling to get done? Spring doesn't do REST, Jersey/JAX-RS does. You should have no problems using Spring's DI in your JAX-RS classes, if that's what you mean.

That's actually inaccurate. Spring MVC does do REST. Called Spring MVC REST. I find it much easier than JAX-RS. But that is my opinion.

Mark

[H Paul]

OP,

Here is an example I once read:

http://www.mkyong.com/webservices/jax-rs/jersey-spring-integration-example/