我在使用 Netbeans 中的 JDBC 驱动程序连接到数据库服务器时遇到问题。我已经尝试了一切，启用 TCP/IP，打开端口，我已经按照在线教程进行操作。它就是行不通。
这是我在控制台中收到的错误消息：
Information: Error: The TCP / IP connection could not be made to the MANUEL-PC host, port 1433. Error: "Connection refused: connect Verify the connection properties, check that there is an instance of SQL Server running on the host and accepting TCP / IP connections on the port and verify that there is no firewall blocking TCP connections on the port. "
我们正在使用的课程开始...
public class DBPosteo
{
private final String URL ="jdbc:sqlserver://MANUEL-PC\\SQLEXPRESS:1433;databaseName=DLC_MotorDeBusqueda;integratedSecurity=true";
private Connection …