MS SQL Server and JDBC: closed connection

Question

Im getting

I/O Error: DB server closed connection.

while connecting to MS SQL server 2008 from java code .

Answer 1

You have problems in your connection strings

For jTDS:

jdbc:jtds:sqlserver://machineName:1433;databaseName=DB;useNTLMv2=tru‌​e;domain=workgroup

You may read http://jtds.sourceforge.net/faq.html#windowsAuth for the required Single-Sign-On library for NTLM to work.

"integratedSecurity=true" that you supplied for jdts is valid when using the JDBC driver

jdbc:sqlserver://machine:1433;instance=SQLEXPRESS;databaseName=db;integratedSecurity=true