基于javaweb+mysql的jsp+servlet宿舍管理系統(tǒng)(超級(jí)管理員、宿舍管理員、學(xué)生)
更新時(shí)間：2023年08月10日 11:38:11 作者：m0_71100782
基于javaweb+mysql的jsp+servlet宿舍管理系統(tǒng)(超級(jí)管理員、宿舍管理員、學(xué)生)(java+jsp+servlet+javabean+mysql+tomcat),需要的朋友可以參考下
基于javaweb+mysql的jsp+servlet宿舍管理系統(tǒng)(超級(jí)管理員、宿舍管理員、學(xué)生)(java+jsp+servlet+javabean+mysql+tomcat)
運(yùn)行環(huán)境
Java≥8、MySQL≥5.7、Tomcat≥8
開(kāi)發(fā)工具
eclipse/idea/myeclipse/sts等均可配置運(yùn)行
適用
課程設(shè)計(jì)，大作業(yè)，畢業(yè)設(shè)計(jì)，項(xiàng)目練習(xí)，學(xué)習(xí)演示等
功能說(shuō)明
超級(jí)管理員：登錄退出、宿舍管理員管理、學(xué)生管理、宿舍樓管理、缺勤管理、修改密碼
宿舍管理員：登錄退出、學(xué)生管理、缺勤管理
學(xué)生：登錄退出、缺勤查看
超級(jí)管理員
宿舍管理員
學(xué)生
技術(shù)框架
JSP Servlet MySQL JDBC Tomcat CSS JavaScript
基于javaweb+mysql的JSP+Servlet宿舍管理系統(tǒng)(超級(jí)管理員、宿舍管理員、學(xué)生)(java+jsp+servlet+javabean+mysql+tomcat)
httpServletRequest.getSession().setAttribute("session_user", user);
chain.doFilter(httpServletRequest, response);
}else if(requestUrI.startsWith(path+"/student.action") && !roleId.equals(2)) {
//當(dāng)用戶發(fā)送的請(qǐng)求是學(xué)生模塊的請(qǐng)求時(shí)，只有當(dāng)前用戶角色不是學(xué)生就放行
httpServletRequest.getSession().setAttribute("session_user", user);
chain.doFilter(httpServletRequest, response);
}else if(requestUrI.startsWith(path+"/record.action") ||
requestUrI.startsWith(path+"/password.action")||
requestUrI.startsWith(path+"/loginOut.action")||
requestUrI.startsWith(path+"/index.action")) {
//當(dāng)用戶發(fā)送的請(qǐng)求是考勤、修改密碼、退出模塊的請(qǐng)求時(shí)，不管用戶的角色是什么，都放行
httpServletRequest.getSession().setAttribute("session_user", user);
chain.doFilter(httpServletRequest, response);
}else {
httpServletRequest.getRequestDispatcher("/index.jsp").forward(httpServletRequest, response);
}
}
/**
* @see Filter#init(FilterConfig)
*/
public void init(FilterConfig fConfig) throws ServletException {
// TODO Auto-generated method stub
}
}
/**
* Servlet implementation class LoginServlet
*/
@WebServlet("/login")
public class LoginServlet extends HttpServlet {
private static final long serialVersionUID = 1L;
String keyword = request.getParameter("keyword");
//當(dāng)前要查詢的頁(yè)面
String pageIndex = request.getParameter("pageIndex");
System.out.println("dormBuildId:"+dormBuildId+" searchType:"+searchType+" keyword:"+keyword);
//默認(rèn)查詢第一頁(yè)，需兩個(gè)參數(shù)，當(dāng)前頁(yè)碼pageIndex，每頁(yè)展示的條數(shù)
PageModel pageModel = new PageModel();
if(pageIndex != null && !pageIndex.equals("")) {
pageModel.setPageIndex(Integer.parseInt(pageIndex));
}
List<User> students = userService.findStudent(dormBuildId,searchType,keyword,user,pageModel);
//獲取查詢處理的總數(shù)量
Integer totalNum = userService.findTotalNum(dormBuildId,searchType,keyword,user);
System.out.println("totalNum:"+totalNum);
System.out.println("students:"+students);
request.setAttribute("totalNum", totalNum);
request.setAttribute("pageIndex", pageModel.getPageIndex());
request.setAttribute("dormBuildId", dormBuildId);
request.setAttribute("searchType", searchType);
request.setAttribute("keyword", keyword);
request.setAttribute("students", students);
request.setAttribute("mainRight", "/WEB-INF/jsp/studentList.jsp");
request.getRequestDispatcher("/WEB-INF/jsp/main.jsp").forward(request, response);
}else if(action != null & action.equals("preAdd")) {
//根據(jù)用戶角色查詢宿舍樓進(jìn)行添加學(xué)生，
//如當(dāng)前用戶 為宿舍管理員，他只能添加學(xué)生到其管理的宿舍樓
//跳轉(zhuǎn)到學(xué)生的添加頁(yè)面
request.setAttribute("mainRight", "/WEB-INF/jsp/studentAddOrUpdate.jsp");
request.getRequestDispatcher("/WEB-INF/jsp/main.jsp").forward(request, response);
}else if(action != null & action.equals("save")) {
//保存學(xué)生
String stuCode = request.getParameter("stuCode");
String name = request.getParameter("name");
String sex = request.getParameter("sex");
String tel = request.getParameter("tel");
String passWord = request.getParameter("passWord");
String dormBuildId= request.getParameter("dormBuildId");
String dormCode = request.getParameter("dormCode");
System.out.println("stuCode:"+stuCode+" name:"+name+" sex:"+sex+
" tel:"+tel+" passWord:"+passWord+" dormBuildId:"+dormBuildId+
" dormCode:"+dormCode);
}
}else {
//保存
if(dormBuild != null) {
//當(dāng)前用戶輸入的宿舍樓名已存在
//表示跳轉(zhuǎn)到宿舍樓添加頁(yè)面
request.setAttribute("error", "當(dāng)前宿舍樓名已存在，請(qǐng)重新輸入！");
request.setAttribute("mainRight", "/WEB-INF/jsp/dormBuildAddOrUpdate.jsp");
request.getRequestDispatcher("/WEB-INF/jsp/main.jsp").forward(request, response);
}else {
//當(dāng)前用戶輸入的宿舍樓名不存在，則保存用戶輸入的信息到數(shù)據(jù)庫(kù)
DormBuild build = new DormBuild();
build.setName(name);
build.setRemark(remark);
build.setDisabled(0);
dormBuildService.save(build);
//保存完成，跑到宿舍樓管理列表頁(yè)，查詢所有宿舍樓
List<DormBuild> builds = dormBuildService.find();
//查詢所有的宿舍樓，在select中遍歷
List<DormBuild> buildSelects = dormBuildService.find();
request.setAttribute("buildSelects", buildSelects);
request.setAttribute("builds", builds);
request.setAttribute("mainRight", "/WEB-INF/jsp/dormBuildList.jsp");
request.getRequestDispatcher("/WEB-INF/jsp/main.jsp").forward(request, response);
}
}
}else if(action != null & action.equals("preUpdate")) {
//根據(jù)宿舍樓id，查詢宿舍樓
DormBuild build = dormBuildService.findById(Integer.parseInt(id));
//保存宿舍樓信息，到前端頁(yè)面展示
request.setAttribute("build", build);
//跳轉(zhuǎn)到宿舍樓修改頁(yè)面
request.setAttribute("mainRight", "/WEB-INF/jsp/dormBuildAddOrUpdate.jsp");
request.getRequestDispatcher("/WEB-INF/jsp/main.jsp").forward(request, response);
}else if(action != null & action.equals("deleteOrAcive")) {
//刪除或激活
String disabled = request.getParameter("disabled");
DormBuild dormBuild = dormBuildService.findById(Integer.parseInt(id));
System.out.println("更新前dormBuild："+dormBuild);
dormBuild.setDisabled(Integer.parseInt(disabled));
System.out.println("更新后dormBuild："+dormBuild);
//如當(dāng)前用戶 為宿舍管理員，他只能添加學(xué)生到其管理的宿舍樓
//跳轉(zhuǎn)到學(xué)生的添加頁(yè)面
request.setAttribute("mainRight", "/WEB-INF/jsp/studentAddOrUpdate.jsp");
request.getRequestDispatcher("/WEB-INF/jsp/main.jsp").forward(request, response);
}else if(action != null & action.equals("save")) {
//保存學(xué)生
String stuCode = request.getParameter("stuCode");
String name = request.getParameter("name");
String sex = request.getParameter("sex");
String tel = request.getParameter("tel");
String passWord = request.getParameter("passWord");
String dormBuildId= request.getParameter("dormBuildId");
String dormCode = request.getParameter("dormCode");
System.out.println("stuCode:"+stuCode+" name:"+name+" sex:"+sex+
" tel:"+tel+" passWord:"+passWord+" dormBuildId:"+dormBuildId+
" dormCode:"+dormCode);
//未存在，則保存
User student = userService.findByStuCode(stuCode);
if(id != null && !id.equals("")) {
//更新之前，查詢數(shù)據(jù)庫(kù)是否已經(jīng)存在當(dāng)前學(xué)號(hào)的學(xué)生，如已存在，則跳轉(zhuǎn)到添加頁(yè)面
if(student != null && !student.getId().equals(Integer.parseInt(id))) {
System.out.println("根據(jù)學(xué)生學(xué)號(hào)查詢student:"+student);
//當(dāng)前學(xué)號(hào)的學(xué)生已存在，請(qǐng)重新修改，跳轉(zhuǎn)到該學(xué)生的修改頁(yè)面
request.getRequestDispatcher("/student.action?action=preUpdate&id="+id).forward(request, response);;
}else {
//更新
User studentUpdate = userService.findById(Integer.parseInt(id));
studentUpdate.setStuCode(stuCode);
studentUpdate.setSex(sex);
studentUpdate.setTel(tel);
studentUpdate.setName(name);
studentUpdate.setPassWord(passWord);
studentUpdate.setDormBuildId(Integer.parseInt(dormBuildId));
studentUpdate.setDormCode(dormCode);
userService.updateStudent(studentUpdate);
response.sendRedirect(getServletContext().getContextPath()+"/student.action?action=list");
}
}else {
//保存
if(student != null) {
//在保存之前，查詢數(shù)據(jù)庫(kù)是否已經(jīng)存在當(dāng)前學(xué)號(hào)的學(xué)生，如已存在，則跳轉(zhuǎn)到添加頁(yè)面
response.sendRedirect(getServletContext().getContextPath()+"/student.action?action=preAdd");
}else {
User user2 = new User();
user2.setStuCode(stuCode);
user2.setSex(sex);
user2.setTel(tel);
}
}
/**
* Servlet implementation class RecordServlet
*/
@WebServlet("/record.action")
public class RecordServlet extends HttpServlet {
private static final long serialVersionUID = 1L;
/**
* @see HttpServlet#HttpServlet()
*/
public RecordServlet() {
super();
// TODO Auto-generated constructor stub
}
/**
* @see HttpServlet#service(HttpServletRequest request, HttpServletResponse response)
*/
protected void service(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
System.out.println("====record.action========");
//在tomcat8.0中，如果是post請(qǐng)求，傳遞過(guò)來(lái)的中文可能會(huì)出現(xiàn)亂碼問(wèn)題
request.setCharacterEncoding("utf-8");
UserService userService = new UserServiceImpl();
RecordService recordService = new RecordServiceImpl();
DormBuildService buildService = new DormBuildServiceImpl();
if(action != null & action.equals("list")) {
//查詢?nèi)鼻谟涗洸⒄故?
Integer roleId = userCurr.getRoleId();
List<DormBuild> builds = new ArrayList<DormBuild>();
if(roleId.equals(0)) {
//如當(dāng)前用戶是超級(jí)管理員，他能將學(xué)生添加到所有的宿舍樓,查詢所有宿舍樓
builds = buildService.findAll();
}else if(roleId.equals(1)) {
//如當(dāng)前用戶 為宿舍管理員，他只能添加學(xué)生到其管理的宿舍樓
builds = buildService.findByUserId(userCurr.getId());
}
System.out.println("builds:"+builds);
request.setAttribute("builds", builds);
String startDate = request.getParameter("startDate");
String endDate = request.getParameter("endDate");
String dormBuildId = request.getParameter("dormBuildId");
String searchType = request.getParameter("searchType");
String keyword = request.getParameter("keyword");
String pageIndex = request.getParameter("pageIndex");
System.out.println("startDate:"+startDate+" endDate:"+endDate+" dormBuildId:"+dormBuildId+
" searchType:"+searchType+" keyword:"+keyword+" pageIndex:"+pageIndex);
//默認(rèn)查詢第一頁(yè)，需兩個(gè)參數(shù)，當(dāng)前頁(yè)碼pageIndex，每頁(yè)展示的條數(shù)
PageModel pageModel = new PageModel();
if(pageIndex != null && !pageIndex.equals("")) {
pageModel.setPageIndex(Integer.parseInt(pageIndex));
}
//分頁(yè)查詢考勤記錄
List<Record> records = recordService.findRecords(startDate,endDate,dormBuildId,
searchType,keyword,userCurr,pageModel);
System.out.println("records:"+records);
//獲取查詢結(jié)果總數(shù)
Integer totalNum = recordService.getToTalNum(startDate,endDate,dormBuildId,
searchType,keyword,userCurr);
System.out.println("totalNum:"+totalNum);
request.setAttribute("totalNum", totalNum);
request.setAttribute("startDate", startDate);
request.setAttribute("endDate", endDate);
request.setAttribute("dormBuildId", dormBuildId);
request.setAttribute("searchType", searchType);
request.setAttribute("keyword", keyword);
request.setAttribute("pageIndex", pageModel.getPageIndex());
request.setAttribute("records", records);
DormBuild dormBuild = dormBuildService.findByName(name);
System.out.println("dormBuild:"+dormBuild);
if(id != null && !id.equals("")) {
//更新
if(dormBuild != null && !dormBuild.getId().equals(Integer.parseInt(id))) {
//表示跳轉(zhuǎn)到宿舍樓添加頁(yè)面
request.setAttribute("error", "當(dāng)前宿舍樓名已存在，請(qǐng)重新輸入！");
//根據(jù)宿舍樓id，查詢宿舍樓
DormBuild build = dormBuildService.findById(Integer.parseInt(id));
//保存宿舍樓信息，到前端頁(yè)面展示
request.setAttribute("build", build);
request.setAttribute("mainRight", "/WEB-INF/jsp/dormBuildAddOrUpdate.jsp");
request.getRequestDispatcher("/WEB-INF/jsp/main.jsp").forward(request, response);
}else {
dormBuild = dormBuildService.findById(Integer.parseInt(id));
dormBuild.setName(name);
dormBuild.setRemark(remark);
//執(zhí)行更新
dormBuildService.update(dormBuild);
//更新完成，跑到宿舍樓管理列表頁(yè)，查詢所有宿舍樓
List<DormBuild> builds = dormBuildService.find();
//查詢所有的宿舍樓，在select中遍歷
List<DormBuild> buildSelects = dormBuildService.find();
request.setAttribute("buildSelects", buildSelects);
request.setAttribute("builds", builds);
request.setAttribute("mainRight", "/WEB-INF/jsp/dormBuildList.jsp");
request.getRequestDispatcher("/WEB-INF/jsp/main.jsp").forward(request, response);
}
}else {
//保存
if(dormBuild != null) {
//當(dāng)前用戶輸入的宿舍樓名已存在
//表示跳轉(zhuǎn)到宿舍樓添加頁(yè)面
request.setAttribute("error", "當(dāng)前宿舍樓名已存在，請(qǐng)重新輸入！");
request.setAttribute("mainRight", "/WEB-INF/jsp/dormBuildAddOrUpdate.jsp");
request.getRequestDispatcher("/WEB-INF/jsp/main.jsp").forward(request, response);
String oldPassWord = request.getParameter("oldPassWord");
//當(dāng)前登錄的用戶原始密碼
String passWord = userCur.getPassWord();
if(!passWord.equals(oldPassWord)) {
response.setCharacterEncoding("utf-8");
PrintWriter writer = response.getWriter();
writer.print("您輸入的原始密碼錯(cuò)誤，請(qǐng)重新輸入！");
}
}else if(action != null && action.equals("change")) {
//修改密碼
String newPassword = request.getParameter("newPassword");
userCur.setPassWord(newPassword);
userService.updatePassWord(userCur);
System.out.println("修改密碼userCur:"+userCur);
request.getRequestDispatcher("/index.jsp").forward(request, response);
}
}
}
/**
* Servlet implementation class LoginOutServlet
*/
@WebServlet("/loginOut.action")
public class LoginOutServlet extends HttpServlet {
private static final long serialVersionUID = 1L;
/**
* @see HttpServlet#HttpServlet()
*/
public LoginOutServlet() {
super();
// TODO Auto-generated constructor stub
}
request.setAttribute("searchType", searchType);
request.setAttribute("keyword", keyword);
request.setAttribute("users", users);
request.setAttribute("mainRight", "dormManagerList.jsp");
request.getRequestDispatcher("/WEB-INF/jsp/main.jsp").forward(request, response);
}else if(action != null & action.equals("preAdd")) {
//跳轉(zhuǎn)到宿舍管理員添加頁(yè)面
request.setAttribute("mainRight", "dormManagerAddOrUpdate.jsp");
request.getRequestDispatcher("/WEB-INF/jsp/main.jsp").forward(request, response);
}else if(action != null & action.equals("save")) {
System.out.println("======保存宿舍管理員=========");
String name = request.getParameter("name");
String passWord = request.getParameter("passWord");
String sex = request.getParameter("sex");
String tel = request.getParameter("tel");
//獲取復(fù)選框中用戶選中的宿舍樓
String[] dormBuildIds = request.getParameterValues("dormBuildId");
System.out.println("name:"+name+" pass:"+passWord+" sex:"+sex+" tel:"+tel+" dormBuildIds:"+Arrays.toString(dormBuildIds));
if(id == null || id.equals("")) {
//保存
User user = new User(name, passWord, sex, tel, null, 1);
user.setDisabled(0);
//當(dāng)前登錄的用戶
User user2 = (User) request.getSession().getAttribute("session_user");
user.setCreateUserId(user2.getId());
userService.saveManager(user,dormBuildIds);
System.out.println("getServletContext().getContextPath():"+getServletContext().getContextPath());
}else {
//修改
//通過(guò)宿舍管理員ID獲取宿舍管理員
User user = userService.findById(Integer.parseInt(id));
user.setName(name);
user.setPassWord(passWord);
user.setSex(sex);
user.setTel(tel);
userService.updateManager(user);
//修改還需修改宿舍管理員與宿舍樓的中間表
//① 刪除當(dāng)前宿舍管理員管理的所有宿舍樓
buildService.deleteByUserId(user.getId());
//② 新增當(dāng)前宿舍管理員管理的所有宿舍樓
buildService.saveManagerAndBuild(user.getId(),dormBuildIds);
}
User user = userService.findById(Integer.parseInt(id));
//根據(jù)宿舍管理員ID獲取宿舍管理員管理的樓棟
List<DormBuild> userBuilds = buildService.findByUserId(user.getId());
user.setDormBuilds(userBuilds);
System.out.println("user:"+user);
List<Integer> userBuildids = new ArrayList<>();
//遍歷當(dāng)前宿舍管理員管理的所有宿舍，獲取當(dāng)時(shí)當(dāng)前宿舍管理員管理的所有宿舍ID
for (DormBuild userBuild : userBuilds) {
userBuildids.add(userBuild.getId());
}
request.setAttribute("userBuildids", userBuildids);
request.setAttribute("user", user);
request.setAttribute("mainRight", "dormManagerAddOrUpdate.jsp");
request.getRequestDispatcher("/WEB-INF/jsp/main.jsp").forward(request, response);
}else if(action != null & action.equals("deleteOrAcive")) {
//刪除或激活
String disabled =request.getParameter("disabled");
//通過(guò)宿舍管理員ID獲取宿舍管理員
User user = userService.findById(Integer.parseInt(id));
user.setDisabled(Integer.parseInt(disabled));
userService.updateManager(user);
//跳轉(zhuǎn)到宿舍管理員列表頁(yè)，查看所有的宿舍管理員
//重定向，請(qǐng)求鏈斷開(kāi)，不能在下一個(gè)servlet或jsp中獲取保存在request中的參數(shù)
response.sendRedirect(getServletContext().getContextPath()+"/dormManager.action?action=list");
}
}
}
/**
/**
* Servlet implementation class RecordServlet
*/
@WebServlet("/record.action")
public class RecordServlet extends HttpServlet {
private static final long serialVersionUID = 1L;
/**
* @see HttpServlet#HttpServlet()
*/
public RecordServlet() {
super();
// TODO Auto-generated constructor stub
}
/**
* 該過(guò)濾器攔截所有以.action的請(qǐng)求
*/
@WebFilter("*.action")
public class LoginFilter implements Filter {
/**
* Default constructor.
*/
public LoginFilter() {
// TODO Auto-generated constructor stub
}
/**
* @see Filter#destroy()
*/
public void destroy() {
// TODO Auto-generated method stub
}
/**
* @see Filter#doFilter(ServletRequest, ServletResponse, FilterChain)
*/
public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException {
System.out.println("------------登錄攔截器------------");
HttpServletRequest httpServletRequest = (HttpServletRequest) request;
HttpSession session = httpServletRequest.getSession();
//①獲取登錄后保存在session中的用戶信息
User user = (User) session.getAttribute("session_user");
System.out.println("session user:"+user);
public class LoginOutServlet extends HttpServlet {
private static final long serialVersionUID = 1L;
/**
* @see HttpServlet#HttpServlet()
*/
public LoginOutServlet() {
super();
// TODO Auto-generated constructor stub
}
/**
* @see HttpServlet#service(HttpServletRequest request, HttpServletResponse response)
*/
protected void service(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
System.out.println("========退出==========");
//清除保存在session中的用戶信息
request.getSession().removeAttribute("session_user");
//清除保存在cookie中的用戶信息
//根據(jù)名字查找保存當(dāng)前項(xiàng)目的學(xué)號(hào)和密碼
Cookie cookie = CookieUtil.getCookieByName(request,"cookie_name_pass");
if(cookie != null) {
//設(shè)計(jì)cookie有效時(shí)間0 ，馬上失效
cookie.setMaxAge(0);
//設(shè)置cookie作用范圍
cookie.setPath(request.getContextPath());
System.out.println("request.getContextPath():"+request.getContextPath());
//將cookie響應(yīng)出去
response.addCookie(cookie);
}
response.sendRedirect("index.jsp");
}
}
public class CookieUtil {
public static void addCookie(String cookieName, int time,
HttpServletRequest request,HttpServletResponse response,
String stuCode, String password) {
//根據(jù)保存學(xué)號(hào)和密碼的cookie的名字獲取cookie
Cookie cookie = getCookieByName(request,cookieName);
//如有該項(xiàng)目保存學(xué)號(hào)和密碼的cookie，則更改cookie的值，如未有則新建cookie
if(cookie != null) {
cookie.setValue(stuCode+"#"+password);
response.sendRedirect(getServletContext().getContextPath()+"/record.action?action=list");
}else {
request.setAttribute("record", record);
request.setAttribute("mainRight", "/WEB-INF/jsp/recordAddOrUpdate.jsp");
request.getRequestDispatcher("/WEB-INF/jsp/main.jsp").forward(request, response);
}
}else if(action != null && action.equals("deleteOrAcive")) {
System.out.println("======刪除或者激活=========");
//刪除或者激活
String disabled = request.getParameter("disabled");
Record record = recordService.findById(Integer.parseInt(id));
record.setDisabled(Integer.parseInt(disabled));
//查看用戶是否有修改考勤記錄的權(quán)限
User user = userService.findStuCodeAndManager(record.getUser().getStuCode(),userCurr);
System.out.println("修改權(quán)限user ："+user);
if(user == null) {
//無(wú)刪除激活權(quán)限
response.sendRedirect(getServletContext().getContextPath()+"/record.action?action=list");
}else {
//有刪除激活權(quán)限
recordService.update(record);
//跳轉(zhuǎn)到缺勤記錄列表頁(yè)
response.sendRedirect(getServletContext().getContextPath()+"/record.action?action=list");
}
}
}
}
/**
* Servlet implementation class DormBuildServlet
*/
//將cookie響應(yīng)出去
response.addCookie(cookie);
}
response.sendRedirect("index.jsp");
}
}
public class CookieUtil {
public static void addCookie(String cookieName, int time,
HttpServletRequest request,HttpServletResponse response,
String stuCode, String password) {
//根據(jù)保存學(xué)號(hào)和密碼的cookie的名字獲取cookie
Cookie cookie = getCookieByName(request,cookieName);
//如有該項(xiàng)目保存學(xué)號(hào)和密碼的cookie，則更改cookie的值，如未有則新建cookie
if(cookie != null) {
cookie.setValue(stuCode+"#"+password);
}else {
cookie = new Cookie(cookieName, stuCode+"#"+password);
}
//設(shè)置cookie的有效時(shí)間
cookie.setMaxAge(time);
//設(shè)置cookie的作用范圍 只在當(dāng)前項(xiàng)目范圍中有效
cookie.setPath(request.getContextPath());
System.out.println("request.getContextPath():"+request.getContextPath());
response.addCookie(cookie);
}
public static Cookie getCookieByName(HttpServletRequest request, String cookieName) {
//從request中獲取當(dāng)前項(xiàng)目的作用cookie
Cookie[] cookies = request.getCookies();
//遍歷所有cookie
if(cookies != null && cookies.length >0) {
for (Cookie cookie : cookies) {
//根據(jù)cookie的名字獲取cookie，并返回
if(cookie.getName().equals(cookieName)) {
return cookie;
/**
* Servlet implementation class RecordServlet
*/
@WebServlet("/record.action")
public class RecordServlet extends HttpServlet {
private static final long serialVersionUID = 1L;
/**
* @see HttpServlet#HttpServlet()
*/
public RecordServlet() {
super();
// TODO Auto-generated constructor stub
}
/**
* @see HttpServlet#service(HttpServletRequest request, HttpServletResponse response)
*/
protected void service(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
System.out.println("====record.action========");
//在tomcat8.0中，如果是post請(qǐng)求，傳遞過(guò)來(lái)的中文可能會(huì)出現(xiàn)亂碼問(wèn)題
request.setCharacterEncoding("utf-8");
String action = request.getParameter("action");
String id = request.getParameter("id");
request.setAttribute("pageIndex", pageModel.getPageIndex());
request.setAttribute("records", records);
request.setAttribute("mainRight", "/WEB-INF/jsp/recordList.jsp");
request.getRequestDispatcher("/WEB-INF/jsp/main.jsp").forward(request, response);
}else if(action != null && action.equals("preAdd")) {
//跳轉(zhuǎn)到添加頁(yè)面
request.setAttribute("mainRight", "/WEB-INF/jsp/recordAddOrUpdate.jsp");
request.getRequestDispatcher("/WEB-INF/jsp/main.jsp").forward(request, response);
}else if(action != null && action.equals("save")) {
//保存
String stuCode = request.getParameter("stuCode");
String date = request.getParameter("date");
String remark = request.getParameter("remark");
System.out.println("remark:"+remark+" date:"+date+" stuCode:"+stuCode);
//做保存前，判斷用戶是否有添加該學(xué)號(hào)學(xué)生缺勤記錄的權(quán)限
User user = userService.findStuCodeAndManager(stuCode,userCurr);
System.out.println("查詢添加缺勤權(quán)限user:"+user);
if(id != null && !id.equals("")) {
//更新
if(user != null) {
//有修改權(quán)限
Record record = recordService.findById(Integer.parseInt(id));
try {
record.setDate(new SimpleDateFormat("yyyy-MM-dd").parse(date));
record.setRemark(remark);
record.setStudentId(user.getId());
recordService.update(record);
} catch (ParseException e) {
e.printStackTrace();
}
response.sendRedirect(getServletContext().getContextPath()+"/record.action?action=list");
}else {
//無(wú)修改權(quán)限
response.sendRedirect(getServletContext().getContextPath()+"/record.action?action=list");
}
到此這篇關(guān)于基于javaweb+mysql的jsp+servlet宿舍管理系統(tǒng)(超級(jí)管理員、宿舍管理員、學(xué)生)的文章就介紹到這了,更多相關(guān)jsp+servlet宿舍管理系統(tǒng)內(nèi)容請(qǐng)搜索腳本之家以前的文章或繼續(xù)瀏覽下面的相關(guān)文章希望大家以后多多支持腳本之家！
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