Receiving SQLException “Login failed for user” connecting to SQL Server 2008

Question

I am trying to connect to SQL Server 2008 via Java.

1. I\'ve added sqljdbc4.jar to my project\'s library.
2. No username and password is set fo

Answer 1

I had the same issue. Its because of the wrong format of the ConnectionUrl. You are missing username and password in the ConnectionUrl.

String ConnectionUrl = "jdbc:sqlserver://localhost:1433;databaseName=DB","username","password");"

I hope it works well!!!

Answer 2

I was having same issue when I tried to connect to Microsoft SQL server from Java. I used jTDS driver instead of regular SQLJdbdc Driver.

        Class.forName("net.sourceforge.jtds.jdbc.Driver"); 
        String connectionUrl = "jdbc:jtds:sqlserver://localhost:1433;databaseName=DB;integratedSecurity=true";
        Connection con = DriverManager.getConnection(connectionUrl);

Answer 3

This post my help: jdbc.SQLServerException: Login failed for user for any user

You need the integratedSecurity=true flag and make sure the server properties are indeed set to 'Windows Authentication Mode' under Security.

Answer 4

If you want windows authentication you need to add the option integratedSecurity=true to your JDBC URL:

jdbc:sqlserver://localhost:1433;databaseName=DB;integratedSecurity=true

You also need sqljdbc_auth.dll (beware of 32/64 bit) in your Windows system path or in a directory defined through java.library.path

For details see the driver's manual: http://msdn.microsoft.com/en-us/library/ms378428.aspx#Connectingintegrated