java jdbc操作SQLServer数据库

public static void main(String args[]){
        System.out.println(321);
        PreparedStatement ps = null;
        ResultSet rs = null;
        Connection ct = null;
        try{

            Class.forName("com.microsoft.jdbc.sqlserver.SQLServerDriver");
            String url = "jdbc:microsoft:sqlserver://serverxp.com:1433;DatabaseName=project_students";
            String user="sa";
            String pwd2 = "sa";
            ct = DriverManager.getConnection(url, user, pwd2);
 
            String sql ="SELECT * FROM stu WHERE 1=?  ";
            ps=ct.prepareStatement(sql);
            ps.setString(1, "1");
             
            rs=ps.executeQuery();
            while(rs.next()){
                System.out.println(rs.getString("stuName"));
            }

        }catch(Exception ex){
            ex.printStackTrace();
        }finally{
            if(null!=rs){
                try {
                    rs.close();
                } catch (Exception e) {
                    // TODO: handle exception
                    e.printStackTrace();
                }
                rs=null;
            }
            if(null!=ps){
                try {
                    ps.close();
                } catch (Exception e) {
                    // TODO: handle exception
                    e.printStackTrace();
                }
                ps = null;
            }
            if(null!=ct){
                try {
                    ct.close();
                } catch (Exception e) {
                    // TODO: handle exception
                    e.printStackTrace();
                }
                ct=null;
            }
            
        }
    }

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