goodsdelete.java

整个系统采用MVC开发模式

package Manager;

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

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

import bean.Goods;
import bean.GoodsDao;

public class GoodsDelete extends HttpServlet {

	/**
	 * Constructor of the object.
	 */
	public GoodsDelete() {
		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 {

		response.setContentType("text/html; charset=GBK");
		response.setHeader("Cache-Control", "no-cache");
		PrintWriter out = response.getWriter();
		String goodsid=request.getParameter("del");
		int del=Integer.parseInt(goodsid);

		Goods book=new Goods();
		GoodsDao goodsdao=new GoodsDao();
		System.out.print(del);
		ArrayList<Goods> result=new ArrayList<Goods>();
		String sql="select * from Goods where bookid='"+del+"'";
		try {
			result=goodsdao.goodsSelect(sql);
			book=result.get(0);
			goodsdao.goodsDelete(book);
			out.print("删除成功");
			//out.print("<a href=''>"+"返回"+"</a>");
		} catch (Exception e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
		
	}

	/**
	 * 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 {

		doGet(request,response);
	}

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

}