How to Implement a Simple Network Monitoring Tool in Java?

In Java, to perform the simple operation of networked systems, admins and users need network monitoring tools. In this article, we will learn how to make a simple Java-based network monitoring tool that lets users keep track of network devices.

Steps to Implement a Simple Network Monitoring Tool in Java

The steps to implement a simple network monitoring tool in Java are mentioned below:

1. Create a Java Project: Open Java Integrated Development Environment (IDE) and create a new project for the network monitoring tool.
2. Write the Java Code: Create a Java class called NetworkMonitor and put the logic for sending a ping request into it.
3. Replace IP Address: Substitute the IP address of the device if we want to monitor for the value in the IP Address.

Program to Implement a Simple Network Monitoring Tool

Below is the implementation of a simple network monitoring tool:

Java

// Java Program to Sending a Ping Request and
// To implement a Simple Network Monitoring Tool
import java.io.IOException;
import java.net.Socket;

public class NetworkMonitor {
    public static void main(String[] args) {
        // set the server address and port to monitor
        String serverAddress = "example.com";
        int port = 80;

        try {
            // attempt to create a socket connection to the specified server and port
            Socket socket = new Socket(serverAddress, port);

            // connection successful, print a message indicating the connection details
            System.out.println("Connected to " + serverAddress + " on port " + port);

            // add additional logic for response time monitoring if needed

            // close the socket connection
            socket.close();
        } catch (IOException e) {
            // connection failed, print an error message with the details
            System.err.println("Unable to connect to the server: " + e.getMessage());
        }
    }
}

Output

Connected to example.com on port 80

Explanation of the Program:

• We have specified the server address and the port to the monitor.
• Then we have created a socket connection to the specified server and port using Socket class.
• If the connection is successful, it prints a message indicating the connection details.
• We can also add additional logic for monitoring response time or to handle the connection as per the requirement.
• If the connection attempt fails, it prints an error message indicating the failure reason.