Using Java To Connect A Sql Server 2005 Database.

Hi, guys. It's the first time I connect a database.

My OS is windows XP.

I downloaded the sqljdbc on microsoft website and unzipped it.
Copy the sqljdbc_1.1 to the directory C:Program Files.

Modified the system variables:
classpath=.;%JAVA_HOME%libdt.jar;%JAVA_HOME%lib ools.jar;
%ProgramFiles%sqljdbc_1.1chssqljdbc.jar
JAVA_HOME=D:Program FilesJavajdk1.5.0_10
ProgramFiles=C:Program Files


I installed the sqlserver 2005and created a sqlserver db engine with windows authentification by default.

Using the management studio I created a database named BudgetAuthorization.
After that I created a user:
CREATE LOGIN aaron792 WITH PASSWORD='12345'
USE BudgetAuthorization
CREATE USER aaron792

Now I want to write a java application to access the database.
The application and the database are on the same computer.


I started the TCP/IP service, using the configuration manager.

Then use the eclipse to write the java application:

import java.sql.*;
public class TestJDBC
{
public static void main(String[] srg)
{
String driverName
= "com.microsoft.sqlserver.jdbc.SQLServerDriver"; // Start JDBC
String dbURL = "jdbcqlserver://localhost:1433;
DatabaseName=BudgetAuthorization"; // Connect the server and the database
//String userName = "Administrator"; // windows user
//String userPwd = "password"; // windows login password
String userName="aaron792";
String userPwd="12345";
Connection dbConn;
try
{
Class.forName(driverName);
dbConn = DriverManager.getConnection(dbURL,userName,userPwd);
System.out.println("Connection Successful!");
// if successful print Connection Successful!
}
catch (Exception e)
{
e.printStackTrace();
}
}
}

But it cann't be done!
The error information is：
Login failed for user 'aaron792'. The user is not associated with a trusted SQL Server connection.

I also tried the windows user, still failed.
What's wrong? Can anyone help?
Many thanks!