src/com/sanqing/servlet/StatusRecognise.java

这里只显示每个文件的开头 60 行。登录后可以解锁完整代码。

微信扫码关注公众号，代码整理好后第一时间通知你。

package com.sanqing.servlet;

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

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

import com.sanqing.bean.Employee;
import com.sanqing.dao.EmployeeDAO;
import com.sanqing.factory.EmployeeDAOFactory;

public class StatusRecognise extends HttpServlet {
	public void doGet(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {
		ServletContext servletContext = getServletContext();	//获得ServletContex
		RequestDispatcher dispatcher = null;					
		String employeeID = request.getParameter("employeeID");	//接受员工编号参数
		String password = request.getParameter("password");		//接受系统密码参数
		if(employeeID == null || "".equals(employeeID)) {		//判断是否输入员工编号
			request.setAttribute("error", "请输入员工编号!");
			dispatcher = servletContext.
					getRequestDispatcher("/statusRecognise.jsp");//设置跳转页面
		}else {
			if(password == null || "".equals(password)) {		//判断是否输入系统密码
				request.setAttribute("error", "请输入系统口令!");
				dispatcher = servletContext.
					getRequestDispatcher("/statusRecognise.jsp");//设置跳转页面
			}else {
				EmployeeDAO employeeDAO = 
					EmployeeDAOFactory.getEmployeeDAOInstance();//获得DAO实现类实例
				Employee employee = employeeDAO.
					findEmployeeById(Integer.parseInt(employeeID));//查询员工
				if(employee == null) {
					request.setAttribute("error", "该员工编号不存在!");
					dispatcher = servletContext.
						getRequestDispatcher("/statusRecognise.jsp");
				} else {
					if(password.equals(employee.getPassword())) {
						request.getSession().
							setAttribute("employee", employee);//将员工信息保存到session范围
						response.sendRedirect("index.jsp");
						return;
					} else {
						request.setAttribute("error", "系统口令不正确!");
						dispatcher = servletContext.
							getRequestDispatcher("/statusRecognise.jsp");
					}
				}
			}
		}
		dispatcher.forward(request, response);//进行跳转
	}
	public void doPost(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {
		doGet(request, response);