基于javaweb+mysql的jsp+servlet学校在线报考系统(java+jsp+javascript+servlet+mysql)
私信源码获取及调试交流
运行环境
Java≥8、MySQL≥5.7、Tomcat≥8
开发工具
eclipse/idea/myeclipse/sts等均可配置运行
适用
课程设计，大作业，毕业设计，项目练习，学习演示等
功能说明
基于javaweb+mysql的JSP+Servlet学校在线报考系统(java+jsp+javascript+servlet+mysql)
项目介绍
本项目分为管理员、教务人员、招生人员、学生等角色；
管理员角色主要功能包括： 系统状态、阶段定义、管理员维护、数据库管理、查看报名信息、我的登录历史、修改密码、退出系统；
教务人员主要功能包括： 系统状态、查看报名信息、准考证号分配、考场分配、录入成绩、我的登录历史、修改密码、退出系统；
招生人员主要功能包括： 系统状态、阶段设置、招考信息设置、查看报名信息、现场确认、学生密码清零、我的登录历史、修改密码、退出系统；
学生角色主要功能包括： 报考须知、我的报名信息、上传照片、报名表打印、准考证打印、成绩与录取查询、我的登录历史、修改密码、退出系统等；
环境需要
1.运行环境：最好是java jdk 1.8，我们在这个平台上运行的。其他版本理论上也可以。 2.IDE环境：IDEA，Eclipse,Myeclipse都可以。推荐IDEA; 3.tomcat环境：Tomcat 7.x,8.x,9.x版本均可 4.硬件环境：windows 7/8/10 1G内存以上；或者 Mac OS； 5.数据库：MySql 5.7版本； 6.是否Maven项目：否；
技术栈
- 后端：Servlet 2. 前端：JSP+JavaScript+CSS
使用说明
- 使用Navicat或者其它工具，在mysql中创建对应名称的数据库，并导入项目的sql文件； 2. 使用IDEA/Eclipse/MyEclipse导入项目，Eclipse/MyEclipse导入时，若为maven项目请选择maven; 若为maven项目，导入成功后请执行maven clean;maven install命令，然后运行； 3. 将项目中WebRoot/META-INF/context.xml配置文件中的数据库配置改为自己的配置; 4. 运行项目，学生角色使用http://localhost:8080/bkxt/index.jsp进行登录 学生账号/密码：zjfhit/123456 管理员登录：http://localhost:8080/bkxt/manage.jsp 管理员账号/密码：manager/123456 教务人员账号/密码：jiaowu/123456 招生人员账号/密码：zhaoban/123456
request.removeAttribute("newpass");
request.removeAttribute("confirmpass");
request.removeAttribute("code");
session.removeAttribute("adminuser");
request.setAttribute("adminLoginMess", "* 密码修改成功，请重新登录！");
request.getRequestDispatcher("/manage.jsp").forward(request, response);
} else {
request.setAttribute("passModifyMess", "* 密码修改失败！");
request.getRequestDispatcher("/admin/pass.jsp").forward(request, response);
}
}
}
}
private String validateForm(String oldpass,String newpass,String confirmpass,String code){
if (oldpass == null || !oldpass.matches("\\w{6,20}")){
return "* 旧密码错误！";
}else if (newpass == null || !newpass.matches("\\w{6,20}")) {
return "* 新密码不合法！";
}else if (!newpass.equals(confirmpass)) {
return "* 两次输入的新密码不一致，请重新输入！";
}else if (code == null || !code.matches("\\d{4}")) {
return "* 验证码错误！";
}
return "";
}
/**
* Initialization of the servlet. <br>
*
* @throws ServletException if an error occurs
*/
public void init() throws ServletException {
// Put your code here
}
}
public class JAdminRoom extends HttpServlet {
/**
* Constructor of the object.
*/
public JAdminRoom() {
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 {
response.setContentType("text/html");
this.doPost(request, response);
}
/**
public void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
this.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("text/html");
int pageSize = request.getParameter("pageSize") == null ? 5 : Integer.parseInt(request.getParameter("pageSize").toString());
int pageNo = request.getParameter("pageNo") == null ? 1 : Integer.parseInt(request.getParameter("pageNo").toString());
HttpSession session = request.getSession();
RecordDao recordDao = new RecordDaoImpl();
System.out.println(pageNo);
PageModel<SupGrade> pm = recordDao.pageByLogname(pageSize, pageNo);
pm.setPageNav(request.getRequestURI());
File file = (File)request.getAttribute("file1");
if(file != null){
try {
GradeDaoImpl gradeImpl = new GradeDaoImpl();
Workbook workbook = Workbook.getWorkbook(file);
Sheet sheet = workbook.getSheet(0);
for(int row = 2;row < sheet.getRows()-1;row++){
SupGrade supgrade = new SupGrade();
supgrade.setTestcardnum(sheet.getCell(1,row).getContents().trim());
supgrade.setSname(sheet.getCell(2,row).getContents().trim());
supgrade.setCname(sheet.getCell(3,row).getContents().trim());
supgrade.setScore(Integer.parseInt(sheet.getCell(4,row).getContents().trim()));
supgrade.setNote(sheet.getCell(5,row).getContents().trim());
gradeImpl.gradeAdd(supgrade);
}
} catch (BiffException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
request.setAttribute("pm", pm);
request.getRequestDispatcher("/jadmin/grade.jsp").forward(request, response);
}
/**
this.doPost(request, response);
}
public void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
response.setContentType("text/html; charset=utf-8");
ServletContext servletContext = request.getServletContext();
HttpSession session = request.getSession();
StageDao stageDao = new StageDaoImpl();
String action = request.getParameter("action");
if ("stageAdd".equals(action)){
int stagenum = Integer.parseInt(request.getParameter("stagenum").toString());
Stage stage = new Stage();
stage.setStagenum(stagenum);
stage.setStagename(request.getParameter("stagename"));
stage.setStarttime(request.getParameter("starttime"));
stage.setEndtime(request.getParameter("endtime"));
stage.setNote(request.getParameter("note"));
if(stageDao.findByStagenum(stagenum) != null){
session.setAttribute("mess", new Message("stageAddMess", "阶段编号不能重复！"));
}else if(stageDao.add(stage) != 0){
servletContext.setAttribute("stages", stageDao.findAll());
session.setAttribute("mess", new Message("stageAddMess", "添加阶段成功！"));
}else{
session.setAttribute("mess", new Message("stageAddMess", "添加阶段失败！"));
}
response.sendRedirect(servletContext.getContextPath()+"/sadmin/stageadd.jsp#add");
//删除系统阶段
}else if("stageDelete".equals(action)){
int stagenum = Integer.parseInt(request.getParameter("stagenum").toString());;
if(stageDao.deleteByStagenum(stagenum) != 0){
servletContext.setAttribute("stages", stageDao.findAll());
session.setAttribute("mess", new Message("stageDeleteMess", "阶段删除成功！"));
}else{
session.setAttribute("mess", new Message("stageDeleteMess", "阶段删除失败！"));
}
response.sendRedirect(servletContext.getContextPath()+"/sadmin/stageadd.jsp");
//其他情况
}else{
session.removeAttribute("mess");
response.sendRedirect(servletContext.getContextPath()+"/sadmin/stageadd.jsp");
}
}
/**
* Initialization of the servlet. <br>
String message = null;
Date date=new Date();
DateFormat format=new SimpleDateFormat("yyyyMMddHHmmss");
String time=format.format(date);
try {
su.initialize(getServletConfig(), request, response);
su.setMaxFileSize(1000000);
su.setAllowedFilesList("sql");
su.upload();
com.jspsmart.upload.File file = su.getFiles().getFile(0);
if (file.isMissing()) {
message = "*请先选择要上传的文件";
} else {
file.saveAs(relativepath + time+".sql",SmartUpload.SAVE_VIRTUAL);
message = "*上传成功!";
}
}catch (SecurityException e) {
if (e.getMessage().trim().matches("(.*)1010\\)\\.$")) {
message = "*上传的文件类型不正确!";
} else if (e.getMessage().trim().matches("(.*)1105\\)\\.$")) {
message = "*文件大小超出了1M!";
}else {
message = "*上传错误!";
}
} catch (Exception e) {
e.printStackTrace();
}
Process process = runtime.exec("cmd /c mysql -uroot -proot bkxt <C:/Progra~1/apache-tomcat-7.0.56/webapps/bkxt/backup/"+time+".sql");
try {
int tag = process.waitFor();
if(tag == 0){
session.setAttribute("mess", new Message("restoreMess", "还原成功"));
}else{
session.setAttribute("mess", new Message("restoreMess", message+" 还原失败"));
}
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
response.sendRedirect(servletContext.getContextPath()+"/sadmin/db.jsp");
}
}
/**
* Initialization of the servlet. <br>
*
* @throws ServletException if an error occurs
}
public class StuEntry extends HttpServlet {
/**
* Constructor of the object.
*/
public StuEntry() {
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
AdminuserDao adminuserDao = new AdminuserDaoImpl();
RecordDao recordDao = new RecordDaoImpl();
String adminname = request.getParameter("adminname");
String adminpass = request.getParameter("adminpass");
String code = request.getParameter("code");
/*表单数据保存至request作用域*/
request.setAttribute("adminname", adminname);
request.setAttribute("adminpass", adminpass);
request.setAttribute("code", code);
/*表单数据规范性的服务器端验证*/
String mess = validateForm(adminname, adminpass, code);
if (!"".equals(mess)){
request.setAttribute("adminLoginMess", mess);
request.getRequestDispatcher("/manage.jsp").forward(request, response);
}else {
String sessioncode = session.getAttribute("sessioncode").toString();
if (!code.equals(sessioncode)) {
request.setAttribute("adminLoginMess", "* 验证码错误！");
request.getRequestDispatcher("/manage.jsp").forward(request, response);
}else {
Adminuser adminuser = adminuserDao.validateLogin(adminname, Encrypt.SHA(adminpass));
if (adminuser == null) {
request.setAttribute("adminLoginMess", "* 用户名或密码输入错误！");
request.getRequestDispatcher("/manage.jsp").forward(request, response);
}else {
Record record = new Record();
record.setLogname(adminuser.getAdminname());
record.setUsergroup(adminuser.getAdmingroup());
record.setLogip(request.getRemoteAddr());
if (recordDao.add(record) != 0) {
session.setAttribute("adminuser", adminuser);
response.sendRedirect(request.getContextPath() + "/admin/state.jsp");
} else {
request.setAttribute("adminLoginMess", "* 登录异常！");
request.getRequestDispatcher("/manage.jsp").forward(request, response);
}
}
}
}
}
private String validateForm(String adminname,String adminpass,String code){
if (adminname == null || !adminname.matches("\\w{6,20}")){
return "* 用户名错误！";
}else if (adminpass == null || !adminpass.matches("\\w{6,20}")) {
}
public void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
this.doPost(request, response);
}
public void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
response.setContentType("text/html; charset=utf-8");
AdminuserDao adminuserDao = new AdminuserDaoImpl();
String action = request.getParameter("action");
if("findAll".equals(action)){
ArrayList<Adminuser> adminusers = adminuserDao.findAll();
request.setAttribute("adminusers", adminusers);
request.getRequestDispatcher("/sadmin/manage.jsp").forward(request, response);
}else {
if ("add".equals(action)){
String adminname = request.getParameter("adminname");
String adminpass = request.getParameter("adminpass");
String admingroup = request.getParameter("admingroup");
Adminuser adminuser = new Adminuser();
adminuser.setAdminname(adminname);
adminuser.setAdminpass(Encrypt.SHA(adminpass));
adminuser.setAdmingroup(admingroup);
request.setAttribute("newadmin", adminuser);
String mess = validateForm(adminname, adminpass, admingroup);
if (!"".equals(mess)){
request.setAttribute("addMess", mess);
}else {
if(adminuserDao.findByAdminname(adminname) != null){
request.setAttribute("addMess", "* 用户名已存在！");
}else if(adminuserDao.add(adminuser) != 0 ){
request.removeAttribute("newadmin");
request.setAttribute("addMess", "* 添加新管理员成功！");
}else {
request.setAttribute("addMess", "* 添加新管理员失败！");
}
}
}else if ("deleteByAdminname".equals(action)){
String adminname = request.getParameter("adminname");
if(adminuserDao.findByAdminname(adminname).getAdmingroup().equals("系统管理员")){
request.setAttribute("manageMess", "* 不能删除系统管理员！");
}else if(adminuserDao.deleteByAdminname(adminname) != 0){
request.setAttribute("manageMess", "* 删除管理员成功！");
}else{
request.setAttribute("manageMess", "* 删除管理员失败！");
}
}else if ("passReset".equals(action)){
String adminname = request.getParameter("adminname");
if(adminuserDao.passModify(adminname,Encrypt.SHA("000000")) != 0){
request.setAttribute("manageMess", "* 管理员密码清零成功！");
}else{
*
* @throws ServletException if an error occurs
*/
public void init() throws ServletException {
// Put your code here
}
}
public class AdminPass extends HttpServlet {
/**
*
*/
private static final long serialVersionUID = 1L;
/**
* Constructor of the object.
*/
public AdminPass() {
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
if(tag == 0){
session.setAttribute("mess", new Message("restoreMess", "还原成功"));
}else{
session.setAttribute("mess", new Message("restoreMess", message+" 还原失败"));
}
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
response.sendRedirect(servletContext.getContextPath()+"/sadmin/db.jsp");
}
}
/**
* Initialization of the servlet. <br>
*
* @throws ServletException if an error occurs
*/
public void init() throws ServletException {
// Put your code here
}
}
public class AdminPass extends HttpServlet {
/**
*
*/
private static final long serialVersionUID = 1L;
/**
* Constructor of the object.
*/
public class ZAdminStageSet extends HttpServlet {
/**
*
*/
private static final long serialVersionUID = 1L;
/**
* Constructor of the object.
*/
public ZAdminStageSet() {
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 {
this.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
request.setAttribute("stuLoginMess", "* 验证码错误！");
request.getRequestDispatcher("/index.jsp").forward(request, response);
}else if (stuDao.validateLogin(username, Encrypt.SHA(password)) == null) {
request.setAttribute("stuLoginMess", "* 用户名或密码输入错误！");
request.getRequestDispatcher("/index.jsp").forward(request, response);
}else {
Record record = new Record();
record.setLogname(username);
record.setUsergroup("学生");
record.setLogip(request.getRemoteAddr());
if (recordDao.add(record) != 0) {
session.setAttribute("username", username);
response.sendRedirect(request.getContextPath() + "/stu/notice.jsp");
} else {
request.setAttribute("stuLoginMess", "* 登录异常！");
request.getRequestDispatcher("/index.jsp").forward(request, response);
}
}
}
}
private String validateForm(String username,String password,String code){
if (username == null || !username.matches("\\w{6,20}")){
return "* 用户名错误！";
}else if (password == null || !password.matches("\\w{6,20}")) {
return "* 密码错误！";
}else if (code == null || !code.matches("\\d{4}")) {
return "* 验证码错误！";
}
return "";
}
/**
* Initialization of the servlet. <br>
*
* @throws ServletException if an error occurs
*/
public void init() throws ServletException {
* @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 {
this.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("text/html; charset=utf-8");
HttpSession session = request.getSession();
AdminuserDao adminuserDao = new AdminuserDaoImpl();
RecordDao recordDao = new RecordDaoImpl();
String adminname = request.getParameter("adminname");
String adminpass = request.getParameter("adminpass");
String code = request.getParameter("code");
/*表单数据保存至request作用域*/
request.setAttribute("adminname", adminname);
request.setAttribute("adminpass", adminpass);
request.setAttribute("code", code);
/*表单数据规范性的服务器端验证*/
String mess = validateForm(adminname, adminpass, code);
if (!"".equals(mess)){
request.setAttribute("adminLoginMess", mess);
request.getRequestDispatcher("/manage.jsp").forward(request, response);
}else {
String sessioncode = session.getAttribute("sessioncode").toString();
if (!code.equals(sessioncode)) {
public void destroy() {
super.destroy();
}
public void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
this.doPost(request, response);
}
public void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
response.setContentType("text/html; charset=utf-8");
ServletContext servletContext = request.getServletContext();
HttpSession session = request.getSession();
SchoolDao schoolDao = new SchoolDaoImpl();
MajorDao majorDao = new MajorDaoImpl();
CourseDao courseDao = new CourseDaoImpl();
String action = request.getParameter("action");
//添加院校基本信息
if("schoolAdd".equals(action)){
School school = new School();
school.setShcode(request.getParameter("shcode"));
school.setShname(request.getParameter("shname"));
school.setShaddr(request.getParameter("shaddr"));
school.setShzip(request.getParameter("shzip"));
school.setShtel(request.getParameter("shtel"));
school.setShtest(request.getParameter("shtest"));
school.setShyear(request.getParameter("shyear"));
if(schoolDao.add(school) != 0){
servletContext.setAttribute("school", school);
session.setAttribute("mess", new Message("schoolAddMess", "学校基本信息设置成功！"));
}else{
session.setAttribute("mess", new Message("schoolAddMess", "学校基本信息设置失败！"));
}
response.sendRedirect(servletContext.getContextPath()+"/zadmin/release.jsp");
//添加新的专业
}else if("majorAdd".equals(action)){
String mcode = request.getParameter("mcode");
Major major = new Major();
major.setMcode(mcode);
major.setMname(request.getParameter("mname"));
major.setPlannum(Integer.parseInt(request.getParameter("plannum")));
if(majorDao.findByMcode(mcode) != null){
session.setAttribute("mess", new Message("majorAddMess", "专业代码不能重复！"));
}else if(majorDao.add(major) != 0){
servletContext.setAttribute("majors", majorDao.findAll());
/**
* Initialization of the servlet. <br>
*
* @throws ServletException if an error occurs
*/
public void init() throws ServletException {
// Put your code here
}
}
public class JAdminRoom extends HttpServlet {
/**
* Constructor of the object.
*/
public JAdminRoom() {
super();
}
/**
* Destruction of the servlet. <br>
*/
public void destroy() {
super.destroy(); // Just puts "destroy" string in log
response.setContentType("text/html; charset=utf-8");
ServletContext servletContext = request.getServletContext();
HttpSession session = request.getSession();
StageDao stageDao = new StageDaoImpl();
String action = request.getParameter("action");
if ("stageAdd".equals(action)){
int stagenum = Integer.parseInt(request.getParameter("stagenum").toString());
Stage stage = new Stage();
stage.setStagenum(stagenum);
stage.setStagename(request.getParameter("stagename"));
stage.setStarttime(request.getParameter("starttime"));
stage.setEndtime(request.getParameter("endtime"));
stage.setNote(request.getParameter("note"));
if(stageDao.findByStagenum(stagenum) != null){
session.setAttribute("mess", new Message("stageAddMess", "阶段编号不能重复！"));
}else if(stageDao.add(stage) != 0){
servletContext.setAttribute("stages", stageDao.findAll());
session.setAttribute("mess", new Message("stageAddMess", "添加阶段成功！"));
}else{
session.setAttribute("mess", new Message("stageAddMess", "添加阶段失败！"));
}
response.sendRedirect(servletContext.getContextPath()+"/sadmin/stageadd.jsp#add");
//删除系统阶段
}else if("stageDelete".equals(action)){
int stagenum = Integer.parseInt(request.getParameter("stagenum").toString());;
if(stageDao.deleteByStagenum(stagenum) != 0){
servletContext.setAttribute("stages", stageDao.findAll());
session.setAttribute("mess", new Message("stageDeleteMess", "阶段删除成功！"));
}else{
session.setAttribute("mess", new Message("stageDeleteMess", "阶段删除失败！"));
}
response.sendRedirect(servletContext.getContextPath()+"/sadmin/stageadd.jsp");
//其他情况
}else{
session.removeAttribute("mess");
response.sendRedirect(servletContext.getContextPath()+"/sadmin/stageadd.jsp");
}
}
/**
* Initialization of the servlet. <br>
*
* @throws ServletException if an error occurs
*/
public void init() throws ServletException {
// Put your code here
}
}
// 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 {
this.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("text/html; charset=utf-8");
HttpSession session = request.getSession();
RecordDao recordDao = new RecordDaoImpl();
int pageSize,pageNo;
try{
pageSize = request.getParameter("pageSize") == null ? 10 : Integer.parseInt(request.getParameter("pageSize").toString());
pageNo = request.getParameter("pageNo") == null ? 1 : Integer.parseInt(request.getParameter("pageNo").toString());
}catch (NumberFormatException e) {
pageSize=10;
pageNo=1;
}
String username = (String)session.getAttribute("username");
PageModel<Record> pm = recordDao.pageByLogname(username, "学生",pageSize, pageNo);
pm.setPageNav(request.getRequestURI());
request.setAttribute("pm", pm);
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