sending parameter from client to server through RMI

Question

I have to pass a parameter to from client to server through spring RMI please advise how to achieve this below is the class i have editied

package com.javatpoint;

import org.aopalliance.intercept.MethodInvocation;
import org.springframework.remoting.support.RemoteInvocation;

@SuppressWarnings("serial")
public class CalculationImpl extends RemoteInvocation implements Calculation {

    public int cube(int number) {
        return number*number*number;
    }


    public CalculationImpl (MethodInvocation methodInvocation) {
        super();

        // Invoked in superclass
        this.addAttribute("awer", "test1111");
    }


    private void addAttribute(String string, String string2) {


    }
}

and the xml for the client is

<beans>

    <bean id="calculationBean" class="org.springframework.remoting.rmi.RmiProxyFactoryBean">
        <property name="remoteInvocationFactory"  ref="invocationFactory"/>
        <property name="serviceUrl" value="rmi://localhost:1099/CalculationService"></property>
        <property name="serviceInterface" value="com.javatpoint.Calculation"></property>

    </bean>

    <bean id="invocationFactory" class="com.javatpoint.CalculationImpl"/>
</beans>

now please advise how to customise the rmiservice exporter so that it should recieve the value sent fromt he client lets say as shown above in client xml the value of parameter awer is test1111 now i want to customise my rmiservice exporter so that it should recieve this value and display it

below is my rmi service exporter..

<bean id="calculationBean" class="com.javatpoint.CalculationImpl"></bean>
    <bean class="org.springframework.remoting.rmi.RmiServiceExporter">
        <property name="service" ref="calculationBean"></property>
        <property name="serviceInterface" value="com.javatpoint.Calculation"></property>
        <property name="serviceName" value="CalculationService"></property>
        <property name="registryPort" value="1099"></property>

    </bean>

Answer 1

In your calculation interface there should be a method that takes a String as a parameter.

public interface Calculation {  
void print(String text );  
void registerIpAddress(String ip);
} 

public class CalculationImpl implements Calculation {

@Override
void print(String text) {
    System.out.println(text);
}
    @Override
    void registerIpAddress(String ip){
            List.add(ip);//or whatever you want
}

your xml files for both client and host are right, but you are missing a few things.

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.xsd">

<bean id="calculationBean" class="com.javatpoint.CalculationImpl"></bean>
<bean class="org.springframework.remoting.rmi.RmiServiceExporter">
    <property name="service" ref="calculationBean"></property>
    <property name="serviceInterface" value="com.javatpoint.Calculation"></property>
    <property name="serviceName" value="CalculationService"></property>
    <property name="replaceExistingBinding" value="true"></property>
    <property name="registryPort" value="1099"></property>
</bean>
</beans>

client-beans.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.xsd">

<bean id="calculationBean" class="org.springframework.remoting.rmi.RmiProxyFactoryBean">
<property name="serviceUrl" value="rmi://localhost:1099/CalculationService"></property>
<property name="serviceInterface" value="com.javatpoint.Calculation"></property>
</bean>
</beans>

you need to create a new instance of applicaionContext in order for this to work

class server {
    public static void main(String[] args) {
        ApplicationContext context = new ClassPathXmlApplicationContext("applicationContext.xml");
    }
}

finally you need to run your client

public static void main(String[] args) {
    ApplicationContext context = new ClassPathXmlApplicationContext("client-beans.xml");
    Calculation calculation = (Calculation) context.getBean("calculationBean");
    calculation.print("Copied&Pasted!");

    try {
        calculation.registerIpAddress(InetAddress.getLocalHost().getHostAddress());
    } catch (UnknownHostException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }
}