jsp database connection and achieve CRUD

Import jdbc Kit

<%@page import="asp.engine.util.PageHelper"%>
<%@ page import="asp.engine.core.jdbc.DialectHelper"%>
<%

Parameters // ajax submitted over acquisition

String pk_id = request.getParameter ( "Field Name") == null "": request.getParameter? ( "Field Name");

Database operations //
String sql_cx = "select from table where field name field name =" + field name;
PageHelper pageHelper_user = new new PageHelper (Request);
pageHelper_user.setPage (to false);
the DataRow dataRow_user = pageHelper_user.query (DialectHelper.translateSQL ( sql_cx));
String field name = dataRow_user.get (0) .get ( "field name"); // name

%>