我正在尝试使用 Web 服务将数据插入到使用 Visual Studio 的表中。当我 eun 时，选择方法并输入参数，然后单击 Invoke 按钮，我收到以下错误。我检查了插入语句的语法，并尝试使用不同的语法。但我遇到了同样的错误。我究竟做错了什么？
System.Data.SqlClient.SqlException: Incorrect syntax near the keyword 'User'.
at System.Data.SqlClient.SqlConnection.OnError(SqlException exception, Boolean breakConnection)
at System.Data.SqlClient.SqlInternalConnection.OnError(SqlException exception, Boolean breakConnection)
at System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj)
at System.Data.SqlClient.TdsParser.Run(RunBehavior runBehavior, SqlCommand cmdHandler, SqlDataReader dataStream, BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject stateObj)
at System.Data.SqlClient.SqlCommand.FinishExecuteReader(SqlDataReader ds, RunBehavior runBehavior, String resetOptionsString)
at System.Data.SqlClient.SqlCommand.RunExecuteReaderTds(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, Boolean async)
at System.Data.SqlClient.SqlCommand.RunExecuteReader(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, String method, DbAsyncResult result)
at System.Data.SqlClient.SqlCommand.InternalExecuteNonQuery(DbAsyncResult result, String methodName, Boolean sendToPipe)
at System.Data.SqlClient.SqlCommand.ExecuteNonQuery()
at Service.register(String fname, String lname, String email, String num, Int32 locID)
//向表中插入值的Web方法//
[WebMethod]
public void register(string fname, string lname, string email, string num, int locID)
{
SqlConnection conn;
conn = ConnectionManager.GetConnection();
conn.Open();
string cmdString = "INSERT into User values(@fname,@lname,@email,@num,@locID)";
SqlCommand sqlCommand = new SqlCommand(cmdString, conn);
sqlCommand.CommandType = CommandType.Text;
sqlCommand.Parameters.Add("@fname", SqlDbType.Text).Value = fname;
sqlCommand.Parameters.Add("@lname", SqlDbType.Text).Value = lname;
sqlCommand.Parameters.Add("@email", SqlDbType.Text).Value = email;
sqlCommand.Parameters.Add("@num", SqlDbType.Text).Value = num;
sqlCommand.Parameters.Add("@locID", SqlDbType.Text).Value = locID;
sqlCommand.ExecuteNonQuery();
conn.Close();
}
///连接管理器类///
public class ConnectionManager
{
public static SqlConnection NewCon;
public static string ConStr ="Data Source=ACER-PC\\SQLEXPRESS;Initial Catalog=DisasterAlert;Integrated Security=True";
public static SqlConnection GetConnection()
{
NewCon = new SqlConnection(ConStr);
return NewCon;
}
}