Package oss.ngocminh.lego.service

Source Code of oss.ngocminh.lego.service.CategoryDelete

package oss.ngocminh.lego.service;

import java.io.IOException;
import java.net.URLEncoder;
import java.sql.Connection;
import java.sql.SQLException;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import oss.ngocminh.lego.data.Entity;
import oss.ngocminh.lego.persistence.CategoryDAO;

/**
* Servlet implementation class CategoryDelete
*/
public class CategoryDelete extends AbstractController {
  private static final long serialVersionUID = 1L;
  private CategoryDAO categoryDAO = new CategoryDAO();

    /**
     * Default constructor.
     */
    public CategoryDelete() {
    }

  /**
   * @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
   */
  protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
    String message = "";
    try {
      Connection conn = getConnection();
      categoryDAO.setConnection(conn);
      int id = Integer.parseInt(request.getParameter("id"));
      Entity category = categoryDAO.findById(id);
      if (category == null) {
        message = "Không tìm thấy chủ đề #" + id;
      } else {
        categoryDAO.delete(category);
        message = "Đã xoá chủ đề " + category.get("name");
      }
      conn.close();
    } catch (NumberFormatException e) {
      message = "Mã chủ đề không hợp lệ: " + request.getParameter("id");
    } catch (SQLException e) {
      message = "Lỗi CSDL: " + e.getMessage();
    }
    redirect("cat_manage?message=" + URLEncoder.encode(message, "UTF-8"), response);
  }

}
TOP

Related Classes of oss.ngocminh.lego.service.CategoryDelete

TOP
Copyright © 2018 www.massapi.com. All rights reserved.
All source code are property of their respective owners. Java is a trademark of Sun Microsystems, Inc and owned by ORACLE Inc. Contact coftware#gmail.com.