showroleservlet.java

基于MVC模式的文章采集检索系统

package com.liubin.servlet.purview;

import java.io.IOException;
import java.util.List;

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

import com.liubin.model.Item;
import com.liubin.model.SubItem;
import com.liubin.service.purview.PurviewService;

public class ShowRoleServlet extends HttpServlet {

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

		PurviewService service=new PurviewService();
		String role_id=request.getParameter("role_id");
		if(role_id==null){
			role_id=(String)request.getAttribute("role_id");
		}
		List<Item>list_item=service.getAllItems();
		List<SubItem>list_sub=service.getAllSubs();
		List<String>list_subid=service.getSubIdByRoleId(Integer.parseInt(role_id));
		request.setAttribute("list_item", list_item);
		request.setAttribute("list_sub", list_sub);
		request.setAttribute("list_subid", list_subid);
		request.setAttribute("role_id", role_id);
		request.getRequestDispatcher("purview/updatePurview.jsp").forward(request,response);
		
	}

	/**
	 * 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 {

		this.doGet(request, response);
	}

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

}