基于Java+JSP的实践教学效果评价系统毕业设计实现+源码毕业设计实现+源码.rar

package com.action; /** * 管理员登陆 增加 修改 删除 删除登陆日志 */ import java.io.IOException; import java.util.List; import java.util.StringTokenizer; 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.bean.AdminBean; import com.bean.SystemBean; import com.util.Constant; import com.util.MD5; public class AdminServlet extends HttpServlet { /** * Constructor of the object. */ public AdminServlet() { 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 { doPost(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 { response.setContentType(Constant.CONTENTTYPE); request.setCharacterEncoding(Constant.CHARACTERENCODING); try{ String method=request.getParameter("method").trim(); AdminBean loginbean = new AdminBean(); HttpSession session = request.getSession(); session.setMaxInactiveInterval(1200); SystemBean systembean = new SystemBean(); String sysdir = systembean.getDir(); if(method.equals("one")){//admin登录 String username = request.getParameter("username"); String password = request.getParameter("password"); if(username == null||username.trim().equals("")){ request.setAttribute("message", "请正确输入用户名！"); request.getRequestDispatcher(sysdir+"/login.jsp").forward(request, response); } else if(password == null||password.trim().equals("")){ request.setAttribute("message", "请输入密码！"); request.getRequestDispatcher(sysdir+"/login.jsp").forward(request, response); } else{ String md5password = MD5.MD5(password); String agent = request.getHeader("user-agent"); StringTokenizer st = new StringTokenizer(agent,";"); String useros=st.nextToken(); String loginip = request.getRemoteAddr(); int flag = loginbean.adminLogin(username,md5password, password,useros,loginip); switch (flag){ case Constant.SUCCESS: List list = loginbean.getAdminInfo(username); session.setAttribute("user", username); session.setAttribute("list", list); request.getRequestDispatcher(sysdir+"/").forward(request, response); break; case Constant.NAME_ERROR: request.setAttribute("message", "用户名错误！请确认管理权限！"); request.getRequestDispatcher(sysdir+"/login.jsp").forward(request, response); break; case Constant.PASSWORD_ERROR: request.setAttribute("message", "密码错误，请确认管理权限！"); request.getRequestDispatcher(sysdir+"/login.jsp").forward(request, response); break; } } } else if(method.equals("editpwd")){//admin edit password String username2 = (String)session.getAttribute("user"); if(username2 == null){ request.getRequestDispatcher("error.jsp").forward(request, response); } else{ String oldpwd = MD5.MD5(request.getParameter("oldpwd").trim()); String newpwd = MD5.MD5(request.getParameter("newpwd").trim()); String username = (String)session.getAttribute("user"); int flag = loginbean.editPassword(username, oldpwd, newpwd); switch (flag){ case Constant.SUCCESS: request.setAttribute("message", "密码修改成功！"); request.getRequestDispatcher(sysdir+"/system/editpwd.jsp").forward(request, response); break; case Constant.PASSWORD_ERROR: request.setAttribute("message", "原始密码错误，请确认权限！"); request.getRequestDispatcher(sysdir+"/system/editpwd.jsp").forward(request, response); break; case Constant.SYSTEM_ERROR: request.setAttribute("message", "系统维护中，请稍后再试！"); request.getRequestDispatcher(sysdir+"/system/editpwd.jsp").forward(request, response); break; } } } else if(method.equals("exit")){//admin exit String username2 = (String)session.getAttribute("user"); if(username2 == null){ request.getRequestDispatcher("error.jsp").forward(request, response); } else{ session.removeAttribute("user"); session.removeAttribute("list"); System.gc(); request.getRequestDispatcher(sysdir+"/login.jsp").forward(request, response); } } else if(method.equals("manager")){//add,update manager String username2 = (String)session.getAttribute("user"); if(username2 == null){ request.getRequestDispatcher("error.jsp").forward(request, response); } else{ String ra = request.getParameter("ra").trim(); if(ra.equals("add")){ String username = request.getParameter("username").trim(); String password = MD5.MD5(request.getParameter("password").trim()); String isuse = request.getParameter("isuse").trim(); if(isuse.equals("在用")) isuse = "1"; else isuse = "2"; int flag = loginbean.addManager(username, password, "2", isuse); if(flag == Constant.SUCCESS){ request.setAttribute("message", "增加管理员成功！"); request.getRequestDispatcher(sysdir+"/system/user.jsp").forward(request, response); } else if(flag == Constant.SAME_NAME){ request.setAttribute("username", username); request.setAttribute("message", "该用户名已经存在！"); request.getRequestDispatcher(sysdir+"/system/user.jsp").forward(request, response); } else{ request.setAttribute("message", "系统维护中，请稍后再试！"); request.getRequestDispatcher(sysdir+"/system/user.jsp").forward(request, response); } } else if(ra.equals("update")){ String username = request.getParameter("username").trim(); String password = request.getParameter("password").trim(); String isuse = request.getParameter("isuse").trim(); if(!password.equals("")){ password = MD5.MD5(password); } if(isuse.equals("在用")) isuse = "1"; else isuse = "2"; int flag = loginbean.updateManager(username, password, "2", isuse); if(flag == Constant.SUCCESS){ request.setAttribute("message", "修改管理员信息成功！"); request.getRequestDispatcher(sysdir+"/system/user.jsp").forward(request, response); } else{ request.setAttribute("message", "系统维护中，请稍后再试！"); request.getRequestDispatcher(sysdir+"/system/user.jsp").forward(request, response); } } } } else if(method.equals("delm")){//delete manager String username2 = (String)session.getAttribute("user"); if(username2 == null){ request.getRequestDispatcher("error.jsp").forward(request, response); } else{ int id = Integer.parseInt(request.getParameter("id").trim()); if