public class Thread1 implements Runnable {
    private Test test;
    public Thread1(Test test) {
        this.test = test;
    }
    public void run() {
        synchronized (test){
            try{
                System.out.println("Thread1....");
                System.out.println("等待中");
                //不释放线程资源
                Thread.sleep(3000);
                System.out.println("资源释放");
            }catch (Exception e){
            }
        }
    }
}

/* 获取数据库连接的函数*/
public static Connection getConnection() {
    Connection con = null;	//创建用于连接数据库的Connection对象
    try {
        Class.forName("com.mysql.jdbc.Driver");// 加载Mysql数据驱动
        
        con = DriverManager.getConnection(
                "jdbc:mysql://localhost:3306/myuser", "root", "root");// 创建数据连接
        
    } catch (Exception e) {
        System.out.println("数据库连接失败" + e.getMessage());
    }
    return con;	//返回所建立的数据库连接
}