updateroesservlet.java

oa rar it is the jsp

package com.accp.oa.control.servlet.roes;

import java.io.IOException;
import java.io.PrintWriter;
import java.util.ArrayList;

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

import com.accp.oa.common.Constants;
import com.accp.oa.dao.imple.*;
import com.accp.oa.factorydao.FactoryDAO;
import com.accp.oa.bean.*;

/*
 * 此类用于
 * 处理用户点击
 * 修改角色的事件
 */
public class UpdateRoesServlet extends HttpServlet {

	
	public UpdateRoesServlet() {
		super();
	}

	
	public void destroy() {
		super.destroy(); 
	}

	/*
	 * 在doGet方法中处理
	 * 用户点击修改事件，转到
	 * 修改页面
	 * @see javax.servlet.http.HttpServlet#doGet(javax.servlet.http.HttpServletRequest, javax.servlet.http.HttpServletResponse)
	 */
	public void doGet(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {
		//获得用户名
		String username = new String(request.getParameter("username").trim().getBytes("ISO-8859-1"),"GBK");
		//获得用户ID
		String perId = request.getParameter("perId").trim();
		ArrayList roesNames = new ArrayList();
		//从DAO工厂中得到对象
		RoesDAO roesdao = (RoesDAO)FactoryDAO.getnewInstance("RoesDAO");
		roesNames = roesdao.search();//获得所有的角色信息
		HttpSession session = request.getSession();
		//把要修改的人名和ID存储在session中
		session.setAttribute("updateRoes_username", username);
		session.setAttribute("updateRoes_perId",perId);
		session.setAttribute(Constants.ROESNAMES, roesNames);
		RequestDispatcher dispatcher = request.getRequestDispatcher("/roes/updateUserToRoes.jsp");
		dispatcher.forward(request, response);
	}

	/*
	 * 在dopost方法中
	 * 进行修改后数据的处理
	 * @see javax.servlet.http.HttpServlet#doPost(javax.servlet.http.HttpServletRequest, javax.servlet.http.HttpServletResponse)
	 */
	public void doPost(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {
		//获得用户ID
		String perId = request.getParameter("perId");
		//获得角色ID
		String roesId = request.getParameter("roesId");
		//从DAO工厂中得到对象
		UserToRoesDAO userToRoesdao = (UserToRoesDAO)FactoryDAO.getnewInstance("UserToRoesDAO");
		//实例化用户角色对象
		User_Roes user_roes = new User_Roes();
		user_roes.setPerId(Integer.parseInt(perId));
		user_roes.setRoesId(Integer.parseInt(roesId));
		if(userToRoesdao.update(user_roes)){//进行修改处理
			HttpSession session = request.getSession();
			session.setAttribute("updatesuccess", "true");//用于标识修改成功
			RequestDispatcher dispatcher = request.getRequestDispatcher("/servlet/SearchRoesAndUserServlet");
			dispatcher.forward(request, response);
		}
	}

	/**
	 * Initialization of the servlet. <br>
	 *
	 * @throws ServletException if an error occure
	 */
	public void init() throws ServletException {
		
	}

}