Java uses OSHI to obtain machine hardware information

What is OSHI

OSHI (Operating System and Hardware Information) is an open source Java library used to obtain detailed information about the operating system and hardware. It provides a simple and unified way to access various information of the system, such as CPU, memory, disk, network interface, sensors, etc. OSHI is designed to be cross-platform compatibility, so it can run on multiple operating systems such as Windows, Linux, macOS, etc.

OSHI application scenarios

• System monitoring:OSHI can be used to develop system monitoring tools to obtain and display the system's hardware and operating system status in real time, such as CPU usage, memory usage, disk read and write speed, etc.
• Performance Analysis: Developers can use OSHI to analyze application performance and identify potential bottlenecks and resource consumption points.
• Hardware information collectionOSHI can be used to collect and record hardware information to help IT administrators manage and maintain assets.
• Diagnostic Tools:OSHI can help develop diagnostic tools, detect the health status of the system, and provide alerts when abnormalities occur.

OSHI Code Engineering

To use the OSHI library in a Java project, you first need to add it as a dependency for the project. Here is an example of adding OSHI dependencies via Maven and Gradle:

Maven

existAdd the following dependencies to:

<dependency>
    <groupId></groupId>
    <artifactId>oshi-core</artifactId>
    <version>6.2.2</version>
</dependency>

Sample code

Here is a simple example of using the OSHI library to get system information:

package ;

import ;
import ;
import ;
import ;

public class OshiExample {
    public static void main(String[] args) {
        // Create a SystemInfo object
        SystemInfo systemInfo = new SystemInfo();

        // Get CPU information
        CentralProcessor processor = ().getProcessor();
        ("CPU Logical Processor Count: " + ());
        ("CPU Physical Processor Count: " + ());
        ("CPU Vendor: " + ().getVendor());
        ("CPU Name: " + ().getName());

        // Get memory information
        GlobalMemory memory = ().getMemory();
        ("Total Memory: " + formatBytes(()));
        ("Available Memory: " + formatBytes(()));

        // Get operating system information
        OperatingSystem os = ();
        ("Operating System: " + ());
        ("System Boot Time: " + ());
    }

    // Format bytes into a readable format
    private static String formatBytes(long bytes) {
        if (bytes < 1024) return bytes + " B";
        int exp = (int) ((bytes) / (1024));
        char pre = "KMGTPE".charAt(exp - 1);
        return ("%.1f %sB", bytes / (1024, exp), pre);
    }
}

The above are just some key codes. Please refer to the code repository below.

Code Repository

/Harries/Java-demo(oshi)

Summarize

OSHI is a powerful and easy-to-use Java library suitable for various application scenarios where system hardware and operating system information are required. Through OSHI, developers can easily implement system monitoring, performance analysis, hardware information collection and other functions. Its cross-platform features make it run stably on different operating systems, making it an ideal choice for developing system tools.

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