DButils实现查询和新增

    public static Adttendance DBSql(String data) throws SQLException {

    String url = "jdbc:mysql://localhost:3306/attendance?useUnicode=true&characterEncoding=utf8";

       String uid = "root";

       String pwd = "";

       Adttendance adttendance=null;

       if (DbUtils.loadDriver("com.mysql.jdbc.Driver")) {

       java.sql.Connection conn = DriverManager.getConnection(url, uid, pwd);

       String sql="select attrs from WT where id =?";

       QueryRunner runner=new QueryRunner();

       adttendance = (Adttendance) runner.query(conn, sql, new BeanHandler<Adttendance>(Adttendance.class), data);  

       System.out.println(adttendance.getAttrs()); 

       DbUtils.close(conn);

      }

    return adttendance;

    }

    public static int insertUser(Object schemaID,String data) throws SQLException

    {

        String url = "jdbc:mysql://localhost:3306/attendance?useUnicode=true&characterEncoding=utf8";

        String uid = "root";

        String pwd = "";

        int insertNum = 0;

        if(DbUtils.loadDriver("com.mysql.jdbc.Driver"))

        {

            java.sql.Connection conn = DriverManager.getConnection(url, uid, pwd);

            String sql = "insert into wt values(" + null + ",'" +schemaID + "','考勤表','描述信息','" + data + "','kq')";

            QueryRunner runner = new QueryRunner();

            insertNum = runner.update(conn, sql);

            // adttendance = runner.query(conn, sql, new BeanHandler<Adttendance>(Adttendance.class), data);

            // System.out.println(adttendance.getAttrs());

            DbUtils.close(conn);

        }

        return insertNum;

    }

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