src/org/bs/servlet/backend/OpraServlet.java

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package org.bs.servlet.backend;


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

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

import org.bs.model.Opra;
import org.bs.model.OpraDTO;
import org.bs.service.OpraService;
import org.bs.utils.JDBCHandler;
import org.bs.utils.PageContext;
import org.bs.utils.ResultUtils;

public class OpraServlet extends BaseServlet {
	
	private OpraService opraService;
	
	public void addInput(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {
		request.getRequestDispatcher("/backend/opra/add_opra.jsp").forward(request, response);
	}
	
	@Override
	public void add(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {
		OpraDTO opra = ResultUtils.copyParams(OpraDTO.class, request);
		opraService.add(opra);
		request.getRequestDispatcher("/backend/opra/add_opra_success.jsp").forward(request, response);	}

	@Override
	public void delete(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {
		int id = Integer.parseInt(request.getParameter("id"));
		opraService.delete(id);
		request.getRequestDispatcher("/backend/OpraServlet?method=list").forward(request, response);
	}

	@Override
	public void modify(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {
		int id = Integer.parseInt(request.getParameter("id"));
		request.setAttribute("opra", opraService.findById(id));
		request.getRequestDispatcher("/backend/opra/approval.jsp").forward(request, response);
	}
	
	public void approval(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {
		int id = Integer.parseInt(request.getParameter("id"));
		Opra opra = new Opra();
		opra.setId(id);
		opraService.approval(opra);
		request.getRequestDispatcher("/backend/OpraServlet?method=approvalList").forward(request, response);
	}
	
	@Override
	public void update(HttpServletRequest request, HttpServletResponse response)