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Houssian and Burlap are both provided by Coucho.
With the help of BurlapServiceExporter and BurlapProxyFactoryBean Class, we can implement the remote service provided by Burlap. The Burlap example is the same as Burlap, you just need to change Burlap to Burlap.
You need to create the following files to create a simple Burlap application:
Calculation.java CalculationImpl.java web.xml burlap-servlet.xml client-beans.xml Client.java
1、Calculation.java
This is a simple interface containing a method for multi-dimensional datasets.
package com.w3codebox;
public interface Calculation {
int cube(int number);
}
2、CalculationImpl.java
This class provides the implementation of the Calculation interface.
package com.w3codebox;
public class CalculationImpl implements Calculation{
public int cube(int number) {
return number*number*number;
}
}
3、web.xml
In this xml file, we define DispatcherServlet as the front controller. If any request follows the .http extension, it will be forwarded to DispatcherServlet.
<?xml version="1.0" encoding="UTF-8"?> <web-app version="2.5" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"> <servlet <servlet-name>burlap</servlet-name> <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class> <load-on-startup>1</load-on-startup> </servlet> <servlet-mapping> <servlet-name>burlap</servlet-name> <url-pattern>*.http</url-pattern> </servlet-mapping> </web-app>
4and burlap-servlet.xml
It must be in the WEB-in the INF folder. Its name must be servletname-servlet.xml. It creates CalculationImpl and BurlapServiceExporter defines the bean.
<?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.xsd"> <bean id="calculationBean" class="com.w3codebox.CalculationImpl"></bean> <bean name="/Calculation.http" class="org.springframework.remoting.caucho.BurlapServiceExporter"> <property name="service" ref="calculationBean"></property> <property name="serviceInterface" value="com.w3codebox.Calculation"></property> </bean> </beans>
5、client-beans.xml
In this xml file, we define BurlapProxyFactoryBean defines the bean. You need to define two properties of this class.
serviceUrl serviceInterface
<?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.xsd"> <bean id="calculationBean" class="org.springframework.remoting.caucho.BurlapProxyFactoryBean"> <property name="serviceUrl" value="http://localhost:8888/burlap/Calculation.http"></property> <property name="serviceInterface" value="com.w3codebox.Calculation"></property> </bean> </beans>
In this example, the name of our project is MaBu, which is used as the context root in the serviceURL.
6、Client.java
This class gets an instance of Calculation and calls the multidimensional dataset method.
package com.w3codebox;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
public class Client {
public static void main(String[] args){
ApplicationContext context = new ClassPathXmlApplicationContext("client-beans.xml
Calculation calculation = (Calculation)context.getBean("calculationBean");
System.out.println(calculation.cube(3));
}
}
Start and deploy the project, here we assume the server is8888running on the port number. If the port number is different, please change the client-serviceURL in beans.xml.
Then, compile and run the Client.java file.