android SQL Server 데이터베이스 연결 및 데이터 조작

선언: 데이터 베 이 스 를 연결 하려 면 하위 라인 에서 작업 해 야 하 며, 주 라인 에서 작업 할 수 없습니다.
아래 밤의 시 계 는 LoginUser 이 고 Username \ UserPwd \ OrderNumber 3 열 이 있 습 니 다.
UserName
UserPwd
OrderNumber
admin
123
0
amberoot
12345
1
haha
123456
2
 
 
 

public class sql_test implements Runnable {

    private String Tag = "sql_test";

    @Override
    public void run() {
        String userName = "sa";//   
        String password = "123456";//  
        Connection con = null;
        try {
            //   Class      
            Class.forName("net.sourceforge.jtds.jdbc.Driver");
            //     ,   test
            con = DriverManager.getConnection(
                    "jdbc:jtds:sqlserver://192.168.66.66:1433/test", userName,
                    password);
        } catch (ClassNotFoundException e) {
            System.out.println("        ");
        } catch (Exception e) {
            System.out.println(e.getMessage());
        }

        try {
            updateDataToSQL(con);
            readSqlData(con);
        } catch (java.sql.SQLException e) {
            e.printStackTrace();
        }
    }

    private void readSqlData(Connection con) throws java.sql.SQLException {
        try {
            /*SQL        */
            //     “LoginUser”     
            String sql = "SELECT * FROM LoginUser";
            //   UserName  
            String sql2 = "select UserName from LoginUser";
            //    UserName      ，                
            String sql3 = "SELECT DISTINCT UserName FROM LoginUser ";
            //       -where
            String sql4 = "SELECT * FROM LoginUser WHERE UserName='admin'";
            //      -where
            String sql5 = "SELECT * FROM LoginUser WHERE OrderNumber>16";
            //    -and\or
            String sql6 = "SELECT * FROM LoginUser WHERE UserName='admin' AND OrderNumber<16";
            //          -order by
            String sql7 = "SELECT UserName, UserPwd FROM MeetingList ORDER BY UserName";
            //            ，           
            String sql8 = "SELECT UserName, OrderNumber FROM MeetingList ORDER BY UserName DESC, OrderNumber ASC";
            /**
             *   SQL   ：top\like
ot\
             */
            //        -top
            String sql14 = "SELECT TOP 2 * FROM LoginUser";
            //    UserName 'a'      -like
            String sql15 = "SELECT * FROM LoginUser WHERE UserName LIKE 'a%'";
            //    UserName   'ha'    -not
            String sql16 = "SELECT * FROM LoginUser WHERE UserName NOT LIKE '%ha%'";
           

            //  Statement,    
            Statement state = con.createStatement();

            //    ：     ResultSet////////////
            ResultSet rs = state.executeQuery(sql);
          
            while (rs.next()) {
                //    
                String UserName = rs.getString("UserName");
                String UserPwd = rs.getString("UserPwd");
             
                int OrderNumber = rs.getInt("OrderNumber");
                
            }

            rs.close();
            state.close();

        } catch (SQLException e) {
            Log.e(Tag,"       ："+e.getMessage());
        } finally {
            if (con != null)
                try {
                    con.close();  //      
                } catch (SQLException e) {
                    e.printStackTrace();
                }
        }
    }

    private void updateDataToSQL(Connection con) throws java.sql.SQLException {
        try {
            /*SQL        (            ，     UserName)*/
            //    -INSERT INTO
            String sql9 = "INSERT INTO LoginUser VALUES ('amberoot', '12345', '1')";
            //        LoginUser
            String sql10 = "INSERT INTO LoginUser (UserName, UserPwd) VALUES ('haha', '888888')";
            //      
            String sql11 = "UPDATE LoginUser SET UserPwd = '666' WHERE UserName = 'haha' ";
            //      
            String sql12 = "DELETE FROM LoginUser WHERE UserName = 'amber' ";
            //        
            String sql13 = "DELETE * FROM LoginUser";


            //  Statement,    
            Statement state = con.createStatement();
            //    /////////////////////
            int insertSeccess = state.executeUpdate(sql10);
            if (insertSeccess == 1) {
                Log.i(Tag,"       ");
            }


            state.close();

        } catch (SQLException e) {
            Log.e(Tag,"       "+e.getMessage());
        }
//        finally {
//            if (con != null)
//                try {
//                    con.close();  //      
//                } catch (SQLException e) {
//                    e.printStackTrace();
//                }
//        }


    }
}