deletesaying.java

具备留言的功能

package j2ee.pj.servlet;

import j2ee.pj.dao.ReplyDao;
import j2ee.pj.dao.SayingDao;

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

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

public class DeleteSaying extends HttpServlet {

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

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

		response.setContentType("text/html;charset=utf-8");
		request.setCharacterEncoding("utf-8");
		response.setCharacterEncoding("utf-8");
		SayingDao sd=new SayingDao();
		ReplyDao rd=new ReplyDao();
		int sid=0;
		String id=request.getParameter("sid");
		if(id!=""||id!=null){
			sid=Integer.parseInt(id);
		}
		boolean c=rd.deleteReply(sid);
		boolean b=sd.deleteSaying(sid);
		if(c&&b){
			response.sendRedirect("QuerySaying");
		}else{
			response.sendRedirect("QuerySaying");
			
		}
	}

}