deletecategoryservlet.java

jsp + servlete + jdbc开的管理系统

package hbu.david.cmc.servlet;

import java.io.File;
import java.io.IOException;
import javax.servlet.RequestDispatcher;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import sun.rmi.server.Dispatcher;

import hbu.david.cmc.bean.*;
import hbu.david.cmc.work.*;
import hbu.david.cmc.util.*;

/**
 * Servlet implementation class for Servlet: DeleteCategoryServlet
 * 
 */
public class DeleteCategoryServlet extends hbu.david.cmc.http.MyHttpServlet
		implements javax.servlet.Servlet {

	static final long serialVersionUID = 1L;

	/*
	 * (non-Java-doc)
	 * 
	 * @see javax.servlet.http.HttpServlet#HttpServlet()
	 */
	public DeleteCategoryServlet() {
		super();
	}

	@Override
	public void doExecute(HttpServletRequest request,
			HttpServletResponse response) throws IOException, ServletException {
		// TODO Auto-generated method stub

		int id=ParseRequest.parseInt(request, "id", 0);
		int userId=((UserInfo)request.getSession().getAttribute("userInfo")).getId();
		RequestDispatcher requestDispatcher;
		if(CategoryBean.deleteCategoryById(id, userId)){
			//删除成功
			//requestDispatcher=request.getRequestDispatcher("GetCategoriesServlet");
			FileUtil.deleteFile(FileUtil.changePathToAbsol(request, "/upImages/"+((UserInfo)request.getSession().getAttribute("userInfo")).getUsername()+"/"+id));
			response.getWriter().print("恭喜您，删除成功！");
		}else{
			//requestDispatcher=request.getRequestDispatcher("GetCategoriesServlet");
			response.getWriter().print("对不起，删除失败！");
		}
		//requestDispatcher.forward(request, response);
	}

}