看一下我的这段代码对你有用:
public class BeanClient{
     Connection Conn=null;
     Statement stmt=null;
     String sDBDriver="com.microsoft.jdbc.sqlserver.SQLServerDriver";
     String sConnStr="jdbc:microsoft:sqlserver://localhost:1433;databasename=mydb";     public BeanClient(){
        try{
              Class.forName(sDBDriver);
              Conn=DriverManager.getConnection(sConnStr,"sa","sa");
              stmt=Conn.createStatement();
        }catch(Exception e){
             System.err.println(e);
        }
     }