shoppingselectbyid.java

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package com.jxc.servlet;

import java.io.IOException;
import java.io.PrintWriter;
import java.sql.Connection;

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

import com.jxc.dao.*;
import com.jxc.vo.*;
public class ShoppingSelectById extends HttpServlet {

	/**
	 * Constructor of the object.
	 */
	public ShoppingSelectById() {
		super();
	}

	/**
	 * Destruction of the servlet. <br>
	 */
	public void destroy() {
		super.destroy(); // Just puts "destroy" string in log
		// Put your code here
	}

	/**
	 * The doGet method of the servlet. <br>
	 *
	 * This method is called when a form has its tag value method equals to get.
	 * 
	 * @param request the request send by the client to the server
	 * @param response the response send by the server to the client
	 * @throws ServletException if an error occurred
	 * @throws IOException if an error occurred
	 */
	public void doGet(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {
		this.doPost(request, response);
	}

	/**
	 * The doPost method of the servlet. <br>
	 *
	 * This method is called when a form has its tag value method equals to post.
	 * 
	 * @param request the request send by the client to the server
	 * @param response the response send by the server to the client
	 * @throws ServletException if an error occurred
	 * @throws IOException if an error occurred
	 */
	public void doPost(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {
		request.setCharacterEncoding("UTF-8");
		String id=request.getParameter("id");
		//System.out.println(id);
		String method=request.getParameter("method");
		Connection conn=Conn.getConnection();
		Vo shop =new Shopping();
		HttpSession session=request.getSession();
		if(method.equals("update")){
			shop=new ShoppingTreat().selectById(conn, id);
			session.setAttribute("shop", shop);
			response.sendRedirect("ShoppingUpdate.jsp");
		}else if(method.equals("selectbyid")){
				if(new ShoppingTreat().selectId(conn, id)){
					Connection cnn=Conn.getConnection();
					shop=new ShoppingTreat().selectById(cnn, id);
					session.setAttribute("shop", shop);
					response.sendRedirect("ShoppingSelectById.jsp");
				}else{
					session.setAttribute("erro", "false");
					response.sendRedirect("ShoppingSelectById.jsp");
				}
		}else if(method.equals("see")){
			shop=new ShoppingTreat().selectById(conn, id);
			session.setAttribute("shop", shop);
			response.sendRedirect("../stockshopping/StockShoppingSeleByctId.jsp");
		}
		}

	/**
	 * Initialization of the servlet. <br>
	 *
	 * @throws ServletException if an error occurs
	 */
	public void init() throws ServletException {
		// Put your code here
	}

}