deletefirst.java

新闻发布系统

package com.myFirstTitle;

import java.io.IOException;
import java.io.PrintWriter;

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

import com.mynews.FirstLevelTitle;
import com.mynews.SecondLevelTitle;

public class deleteFirst extends HttpServlet {

	
	public void doGet(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {

		response.setContentType("text/html");
		PrintWriter out = response.getWriter();
		String strid = request.getParameter("id");
		int id = Integer.parseInt(strid);
		SecondLevelTitle two = new SecondLevelTitle();
		boolean t=  two.deleteSecondParent(id);  //删除引用的二级标题
		if (t){
			FirstLevelTitle one = new FirstLevelTitle();
			boolean tt = one.deleteFirst(id);  //删除一级标题
			if (tt){
				out.print("删除成功");
			}else{
				RequestDispatcher dis = request.getRequestDispatcher("error.jsp");
				dis.include(request, response);
			}
		}
		out.print("<br><a href='FirstInfor.jsp'>返回</a>");
		out.close();
	}

	
	public void doPost(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {
		this.doGet(request, response);
	}

}