Spring Web Service: Service Consumer Code Implementation

Spring Web Service Client Code Implementation Details : This contains how to create a spring client and invoke spring WebService.

1 Create Project for Web Service Consumer
Create a Java Project ‘HelloSpringServiceClient’

2 Setup of Spring Web Service libraries in eclipse project

Copy all libraries from ‘HelloSpringService\ WebContent \ WEB-INF \ lib’ to ‘lib’ folder and add in to class path.

3. Create Client Implementation Class

Create a java Class name as HelloSpringServiceClient

package com.poc.hello.spring.webservice.client;

import java.io.IOException;

import javax.xml.transform.Source;

import org.apache.log4j.Logger;

import org.springframework.context.ApplicationContext;

import org.springframework.context.support.ClassPathXmlApplicationContext;

import org.springframework.core.io.Resource;

import org.springframework.ws.client.core.support.WebServiceGatewaySupport;

import org.springframework.xml.transform.ResourceSource;

import org.springframework.xml.transform.StringResult;

public class HelloSpringServiceClient extends WebServiceGatewaySupport

{

private static final Logger LOGGER = Logger.getLogger(HelloSpringServiceClient.class);

private Resource request;

public static void main(String[] args) throws IOException

{

LOGGER.info("Enter in to HelloSpringServiceClient.main()");

ApplicationContext applicationContext = new ClassPathXmlApplicationContext("applicationContext.xml", HelloSpringServiceClient.class);

HelloSpringServiceClient helloSpringServiceClient = (HelloSpringServiceClient) applicationContext.getBean("helloSpringServiceClient");

helloSpringServiceClient.callWebservice();

LOGGER.info("Exit from HelloSpringServiceClient.main()");

}

public void setRequest(Resource request)

{

this.request = request;

}

public void callWebservice() throws IOException

{

LOGGER.info("Enter in to HelloSpringServiceClient.callWebservice()");

Source requestSource = new ResourceSource(request);

StringResult result = new StringResult();

//webservicetemplate is here!!!!

getWebServiceTemplate().sendSourceAndReceiveToResult(requestSource, result);

LOGGER.info("Result Data : "+result);

LOGGER.info("Exit from HelloSpringServiceClient.callWebservice()");

}

4 Create Client Configuration File (Spring Based Client)

Create 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"

xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.0.xsd">

bean>

beans>

5 Create Request XML

Crate a request xml name as ‘SpringWSRequest.xml’

xml version="1.0" encoding="UTF-8"?>

Hello Spring Web Service Test

HelloRequest>

6 Setup of Web Service Description File for client implementation
Copy WSDL (helloworld.wsdl) file to the same directory

From HelloSpringService\ WebContent \ WEB-INF \ helloworld.wsdl

To current working directory

7 Test Spring Web Service Client
Run ‘HelloSpringServiceClient.java’ as a java Application

Overall Results , The solution as tested in this POC performed well throughout all testing.