📄 employee_login.java

📁 这是基于jsp的任务管理系统
💻 JAVA
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package cn.project.bit.servlet;

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

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 cn.project.bit.business.Employee_Manager;

public class Employee_Login extends HttpServlet {

	/**
	 * 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 {

		response.setContentType("text/html");
		PrintWriter out = response.getWriter();
		out
				.println("<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.01 Transitional//EN\">");
		out.println("<HTML>");
		out.println("  <HEAD><TITLE>A Servlet</TITLE></HEAD>");
		out.println("  <BODY>");
		out.print("    This is ");
		out.print(this.getClass());
		out.println(", using the GET method");
		out.println("  </BODY>");
		out.println("</HTML>");
		out.flush();
		out.close();
	}

	/**
	 * 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 {

		HttpSession ses = request.getSession();
		
		String employee_name = (String)request.getParameter("employee_name");
		
		String employee_password = (String)request.getParameter("employee_password");
		
		boolean tag = Employee_Manager.CheckEmployee(employee_name, employee_password);
		

		
		/**如果存在此用户*/
		if(tag)
		{

			
			ses.setAttribute("employee_name",employee_name);
			
			RequestDispatcher requestDispatcher = request.getRequestDispatcher("Guanli/EmployeeGuanli/EmployeeLoginSuccess.jsp");
			
			requestDispatcher.forward(request,response);
			
			System.out.println("连接数据库成功");
		}
		else
		{
			ses.setAttribute("error","error");
			
			RequestDispatcher requestDispatcher = request.getRequestDispatcher("Guanli/EmployeeGuanli/EmployeeLoginFailure.jsp");
			
			requestDispatcher.forward(request,response);
		
		}
	}

}
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