下面将演示在 Windows10 系统下，怎样通过 Java 代码获取主板序列号。示例代码如下：

import java.util.ArrayList;
import java.util.List;
import java.util.Scanner;

public class Demo {

    public static void main(String[] args) {
        Demo demo = new Demo();
        String[] serials = demo.getMainboardCode();
        for(String serial : serials) {
            System.out.println(serial);
        }
    }

    /**
     * 获取主板序列号
     * @return
     */
    public String[] getMainboardCode() {
        List<String> codeList = new ArrayList<>();
        Scanner sc = null;
        try {
            Process process = Runtime.getRuntime().exec(new String[] {
                    "wmic", "baseboard", "get", "serialnumber" });
            process.getOutputStream().close();
            sc = new Scanner(process.getInputStream());
            sc.next(); // SerialNumber
            if(sc.hasNext()) {
                codeList.add(sc.next());
            }
        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            if(null != sc) {
                sc.close();
            }
        }
        return codeList.toArray(new String[]{});
    }

}

运行示例，输出如下：

L1HF527****