我正在尝试为 Windows 10(64 位)开发一个 Windows 服务,它打算定期在本地 MS SQL Server(v.11)中插入记录。
安装运行成功,但没有插入记录。我尝试了 System.Timers.Timer
和 System.Threading.Timer
。
我还尝试插入服务启动事件。但这也没有用。
这是我的代码:
public partial class Service1 : ServiceBase
{
// System.Timers.Timer timer;
System.Threading.Timer threadTimer;
public Service1()
{
InitializeComponent();
}
//UPDATE: I checked the following method code in a console application. It works fine.
private void InsertRecord()
{
try
{
using (SqlConnection connection = new SqlConnection("Server=.;Database=TestDb; Trusted_Connection=True;"))
{
using (SqlCommand command = new SqlCommand())
{
command.Connection = connection;
command.CommandText = "Insert into .....')";
connection.Open();
command.ExecuteNonQuery();
connection.Close();
}
}
}
catch (Exception ex)
{
}
}
protected override void OnStart(string[] args)
{
InsertRecord(); //This line not executed also.
TimeSpan tsInterval = new TimeSpan(0, 2, 0); //2 minute interval.
threadTimer = new Timer(new TimerCallback(threadTimer_Elapsed)
, null, tsInterval, tsInterval);
//timer = new System.Timers.Timer();
//timer.Interval = 10000;
//timer.Elapsed += Timer_Elapsed;
//timer.Enabled = true;
//timer.Start();
}
private void threadTimer_Elapsed(object state)
{
InsertRecord();
}
//private void Timer_Elapsed(object sender, System.Timers.ElapsedEventArgs e)
//{
// InsertRecord()
//}
protected override void OnStop()
{
threadTimer.Change(Timeout.Infinite, Timeout.Infinite);
threadTimer.Dispose();
threadTimer = null;
//timer.Stop();
}
}
我在这里错过了什么?
最佳答案
关于c# - 如何从 Windows 服务访问 SQL 数据库?,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/46967912/