asp.net连接mysql数据库时，得到以下错误信息

MySql.Data.MySqlClient.MySqlException (0×80004005): error connecting: Timeout expired. The timeout period elapsed prior to obtaining a connection from the pool. This may have occurred because all pooled connections were in use and max pool size was reached.

得到这个错误，有2个原因：

1. 打开太多的mysql连接，没有及时关闭

2. 可能是因为启用了Pool的功能，请编辑连接字符串，添加 Pooling=False;

如Server=myServerAddress;Database=myDataBase;Uid=myUsername;Pwd=myPassword;Pooling=False;