Persist Security info = true, and sa Login Failure Error

<Add name = "jl_mfgcontext" providername = "system. data. sqlclient "connectionstring =" Data Source = 192.168.xx.xx; initial catalog = xxxx; uid = sa; Pwd = xxxx; persist Security info = true; "/>

When persist Security info = true is specified, the sqlconnection (conn) object in the memory retains PWD in conn. connectionstring after the link specified by open,

If it is set to false, PWD is cleared. Note that the PWD in conn. connectionstring of the current instance is not cleared in Web. config.

The following is the connection string of the connection object that has been instantiated using dbctx in ef4.1. As a result, the sa Login Failure error occurs during use of the new link.