Spring and RESTful webservice Integration
Earlier, we had developed an application using Spring and Rest. But, this is a basic app which shows integration of Spring with Rest at a beginner level. This demo app is for freshers.
Following below steps to create this application:
1) Libraries required:
spring-core 4.1.6 RELEASE
spring-web 4.1.6 RELEASE
spring-webmvc 4.1.6 RELEASE
jstl 1.2
2) Create a xml file named as web.xml in WEB-INF folder and write following code:
<!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>Archetype Created Web Application</display-name>
<servlet>
<servlet-name>springrest</servlet-name>
<servlet-class>
org.springframework.web.servlet.DispatcherServlet
</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>springrest</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
</web-app>
3) Create a xml file named as springrest-servlet.xml in WEB-INF folder and write following code in it:
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:mvc="http://www.springframework.org/schema/mvc" 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-3.0.xsd http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-3.0.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd">
<mvc:annotation-driven />
<context:component-scan base-package="com.gag.controller" />
</beans>
4) Create a package named as com.gag.controller and Create a class named as SpringRestController.java and write following code in it:
package com.gag.controller;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RestController;
@RestController
@RequestMapping("/hello")
public class SpringRestController {
@RequestMapping(value = "/{name}", method = RequestMethod.GET)
public String hello(@PathVariable String name) {
String result = "Hello " + name;
return result;
}
}
5) Create a JSP or any html file and write following code in it:
<html>
<body>
<a href="hello/Gagan">Say Hello</a>
</body>
</html>
Our output would be like as below:
This is an anchor tag on which you would click and a Hello Message is shown:
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