java监控mysql 代码

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;

public class MySQLMonitor {
    public static void main(String[] args) {
        String url = "jdbc:mysql://localhost:3306/test";
        String user = "root";
        String password = "password";

        try (Connection conn = DriverManager.getConnection(url, user, password);
             Statement stmt = conn.createStatement();
             ResultSet rs = stmt.executeQuery("SHOW STATUS LIKE 'Threads_connected'")) {

            if (rs.next()) {
                int threadsConnected = rs.getInt("Value");
                System.out.println("当前MySQL连接数：" + threadsConnected);
            }
        } catch (SQLException e) {
            e.printStackTrace();
        }
    }
}