src/servlet/BookReworkServlet.java

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package servlet;

import java.io.IOException;
import java.util.ArrayList;

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

import util.Validate;
import bean.InsertUpdateDelBean;
import bean.SelectBean;

public class BookReworkServlet extends HttpServlet {

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

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

	public void doGet(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {
		Validate vd = new Validate();
		String id = vd.getUnicode(request.getParameter("id"));
		String name = vd.getUnicode(request.getParameter("name"));
		String author = vd.getUnicode(request.getParameter("author"));
		String publishing = vd.getUnicode(request.getParameter("publishing"));
		String price = vd.getUnicode(request.getParameter("price"));
		String storage = vd.getUnicode(request.getParameter("storage"));
		String brief = vd.getUnicode(request.getParameter("brief"));
		String type = vd.getUnicode(request.getParameter("type"));
		String supplier = vd.getUnicode(request.getParameter("supplier"));
		
		InsertUpdateDelBean ib = new InsertUpdateDelBean();
		String sql = "update books set name='"+name+"',author='"+author+"',publishing='"+publishing+"',price='"+price+"',storage="+storage+",brief='"+brief+"',types='"+type+"',supplier='"+supplier+"' where id="+id;
		ib.insertANDupdateANDdel(sql);
		request.setAttribute("ok", "1");
		
		SelectBean sb = new SelectBean();
		String sql1 = "select * from books where id="+id;
		String[] args = {"id","name","author","publishing","price","storage","brief","types","sums","supplier","imgpath"};
		ArrayList al = sb.select(sql1, args);
		request.setAttribute("books", al);
		
		RequestDispatcher rd=request.getRequestDispatcher("/book_rework.jsp");
        rd.forward(request,response);
	}