Advertisement
Not a member of Pastebin yet?
Sign Up,
it unlocks many cool features!
- /*
- * To change this license header, choose License Headers in Project Properties.
- * To change this template file, choose Tools | Templates
- * and open the template in the editor.
- */
- import java.io.IOException;
- import java.io.PrintWriter;
- import java.sql.Connection;
- import java.sql.DriverManager;
- import java.sql.ResultSet;
- import java.sql.SQLException;
- import java.sql.Statement;
- import java.util.ArrayList;
- import java.util.List;
- import java.util.logging.Level;
- import java.util.logging.Logger;
- import javax.servlet.ServletException;
- import javax.servlet.annotation.WebServlet;
- import javax.servlet.http.HttpServlet;
- import javax.servlet.http.HttpServletRequest;
- import javax.servlet.http.HttpServletResponse;
- @WebServlet(urlPatterns = {"/ProductController"})
- public class ProductController extends HttpServlet {
- /**
- * Processes requests for both HTTP <code>GET</code> and <code>POST</code>
- * methods.
- *
- * @throws java.sql.SQLException
- */
- public void showProducts() throws SQLException{
- try{
- String url="jdbc:derby://localhost:1527/SiteDB";
- Connection con=DriverManager.getConnection(url,"a","a");
- String sql="SELECT * FROM app.products";
- Statement instr = con.createStatement();
- ResultSet rs= instr.executeQuery(sql);
- while(rs.next())
- {
- String name=rs.getString("name");
- }
- } catch (SQLException ex)
- {
- ex.printStackTrace();
- }
- }
- protected void processRequest(HttpServletRequest request, HttpServletResponse response)
- throws ServletException, IOException, SQLException {
- response.setContentType("text/html;charset=UTF-8");
- showProducts();
- try (PrintWriter out = response.getWriter()) {
- /* TODO output your page here. You may use following sample code. */
- out.println("<!DOCTYPE html>");
- out.println("<html>");
- out.println("<head>");
- out.println("<title>Servlet ProductController</title>");
- out.println("</head>");
- out.println("<body>");
- out.println("<h1>Servlet ProductController at " + request.getContextPath() + "</h1>");
- out.println("</body>");
- out.println("</html>");
- }
- }
- // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
- /**
- * Handles the HTTP <code>GET</code> method.
- *
- * @param request servlet request
- * @param response servlet response
- * @throws ServletException if a servlet-specific error occurs
- * @throws IOException if an I/O error occurs
- */
- @Override
- protected void doGet(HttpServletRequest request, HttpServletResponse response)
- throws ServletException, IOException {
- try {
- processRequest(request, response);
- } catch (SQLException ex) {
- Logger.getLogger(ProductController.class.getName()).log(Level.SEVERE, null, ex);
- }
- }
- /**
- * Handles the HTTP <code>POST</code> method.
- *
- * @param request servlet request
- * @param response servlet response
- * @throws ServletException if a servlet-specific error occurs
- * @throws IOException if an I/O error occurs
- */
- @Override
- protected void doPost(HttpServletRequest request, HttpServletResponse response)
- throws ServletException, IOException {
- List<Product> products = null;
- try {
- String url = "jdbc:derby://localhost:1527/SiteDB";
- Connection con = DriverManager.getConnection(url, "a", "a");
- String sql = "SELECT * FROM A.products";
- Statement instr = con.createStatement();
- ResultSet rs = instr.executeQuery(sql);
- products = new ArrayList<Product>();
- while (rs.next()) {
- String name = rs.getString("name");
- double price = rs.getDouble("price");
- products.add(new Product(name,price));
- }
- } catch (SQLException ex) {
- ex.printStackTrace();
- }
- request.setAttribute("products", products);
- //processRequest(request, response);
- request.getRequestDispatcher("ProductView").forward(request, response);
- }
- /**
- * Returns a short description of the servlet.
- *
- * @return a String containing servlet description
- */
- @Override
- public String getServletInfo() {
- return "Short description";
- }// </editor-fold>
- }
Advertisement
Add Comment
Please, Sign In to add comment
Advertisement