JavaWeb学生信息管理系统
JavaWeb实现学生信息管理系统
基于javaweb实现的学生信息管理系统。有兴趣的小伙伴一起来看看吧！
文章目录
- JavaWeb实现学生信息管理系统
- 一、项目简介
- 二、项目环境
- 三、项目结构
- 四、项目展示
- 五、快速开始
-
- 1.数据表结构
- 2.新建项目
- 3.代码实现
-
- 1.studentbean
- 2.studentdaoimpl
- 3.studentserviceimpl
- 4.studentservlet
- 总结
一、项目简介
该项目完全基于JavaWeb实现，没有使用任何的后端框架，对新手朋友来说也是比较友好。此项目前端使用layui编写，界面非常的漂亮美观。分为学生端和管理端，原本之前要加上教师端，后因时间有限便没有在继续编写。功能也比较全面，基本功能都有。
二、项目环境
- 数据库：MySQL8.0版本
- 版本：jdk1.8
- 开发工具:idea2022
- 所用技术
ajax+jq+layui+mysql+c3p0
三、项目结构
由于电脑屏幕有限就不依次展开了。
- 后端
- 前端
四、项目展示
登录
学生信息
成绩信息
密码修改
添加信息
主页
五、快速开始
1.数据表结构
student表
score表
user表
2.新建项目
新建项目以及项目配置我上几篇已经详细讲过，需要的大家自行去看。这里我就不在多说！
3.代码实现
由于代码太多就不全部展示出来！只做部分展示。
1.studentbean
代码如下（示例）：
public class StudentBean {
private int sid; //ID
private String sname; //姓名
private String ssex; //性别
private String sstudynum; //学号
private String sidcard;
private String sschool; //学校
private String sclass; //班级
private String smajor; //专业
private String sphone; //电话
private String spassword; //密码
private String suser; //用户名
private String sdate; //日期
public void setSuser(String suser) {
this.suser = suser;
}
public void setSid(int sid) {
this.sid = sid;
}
public void setSname(String sname) {
this.sname = sname;
}
public void setSsex(String ssex) {
this.ssex = ssex;
}
public void setSstudynum(String sstudynum) {
this.sstudynum = sstudynum;
}
public void setSidcard(String sidcard) {
this.sidcard = sidcard;
}
public void setSschool(String sschool) {
this.sschool = sschool;
}
public void setSclass(String sclass) {
this.sclass = sclass;
}
public void setSmajor(String smajor) {
this.smajor = smajor;
}
public void setSphone(String phone) {
this.sphone = phone;
}
public void setSpassword(String spassword) {
this.spassword = spassword;
}
public void setSdate(String sdate) {
this.sdate = sdate;
}
public int getSid() {
return sid;
}
public String getSname() {
return sname;
}
public String getSsex() {
return ssex;
}
public String getSstudynum() {
return sstudynum;
}
public String getSidcard() {
return sidcard;
}
public String getSschool() {
return sschool;
}
public String getSclass() {
return sclass;
}
public String getSmajor() {
return smajor;
}
public String getSphone() {
return sphone;
}
public String getSpassword() {
return spassword;
}
public String getSuser() {
return suser;
}
public String getSdate() {
return sdate;
}
public StudentBean() {
}
public StudentBean(int sid, String sname, String ssex, String sstudynum, String sidcard, String sschool, String sclass, String smajor, String sphone,String spassword,String suser,String sdate) {
this.sid = sid;
this.sname = sname;
this.ssex = ssex;
this.sstudynum = sstudynum;
this.sidcard = sidcard;
this.sschool = sschool;
this.sclass = sclass;
this.smajor = smajor;
this.sphone = sphone;
this.spassword = spassword;
this.suser = suser;
this.sdate = sdate;
}
@Override
public String toString() {
return "StudentBean{" +
"sid=" + sid +
", sname='" + sname + '\'' +
", ssex='" + ssex + '\'' +
", sstudynum='" + sstudynum + '\'' +
", sidcard='" + sidcard + '\'' +
", sschool='" + sschool + '\'' +
", sclass='" + sclass + '\'' +
", smajor='" + smajor + '\'' +
", sphone='" + sphone + '\'' +
", spassword='" + spassword +'\''+
", suser='" + suser +'\''+
", sdate='" + sdate +'\''+
'}';
}
}
2.studentdaoimpl
代码如下（示例）：
public class StudenDaoImpl implements StudentDaoInter {
QueryRunner queryRunner = new QueryRunner(MySQLTools.getDataSource());
/**
* 添加学生信息
* @param studentBean
* @throws SQLException
*/
@Override
public void AddStudent(StudentBean studentBean) throws SQLException {
queryRunner.update("INSERT INTO sstudent VALUES(?,?,?,?,?,?,?,?,?,?,?,?)",null,studentBean.getSuser(),studentBean.getSname(),
studentBean.getSsex(),studentBean.getSstudynum(),studentBean.getSidcard(),studentBean.getSschool(),
studentBean.getSclass(),studentBean.getSmajor(),studentBean.getSphone(),"666666",studentBean.getSdate());
}
/**
* 验证学号信息是否重复
* @param num
* @return
* @throws SQLException
*/
@Override
public StudentBean findStudyNum(String num) throws SQLException {
return queryRunner.query("SELECT * FROM sstudent WHERE sstudynum = ?", new BeanHandler<StudentBean>(StudentBean.class),num);
}
/**
* 验证身份证信息是否重复
* @param id
* @return
* @throws SQLException
*/
@Override
public StudentBean findID(String id) throws SQLException {
return queryRunner.query("SELECT * FROM sstudent WHERE sidcard = ?",new BeanHandler<StudentBean>(StudentBean.class),id);
}
/**
* 验证手机号是否重复
* @param phone
* @return
* @throws SQLException
*/
@Override
public StudentBean findPhone(String phone) throws SQLException {
return queryRunner.query("SELECT * FROM sstudent WHERE sphone = ?",new BeanHandler<>(StudentBean.class),phone);
}
/**
* 根据学号和身份证号删除学生
* @param sid
* @param num
* @throws SQLException
* @return
*/
@Override
public void deleteStudent(String sid, String num) throws SQLException {
queryRunner.update("DELETE FROM sstudent WHERE sstudynum = ? AND sidcard = ?",num,sid);
}
/**
* 根据姓名或者身份证查询
* @param id
* @return
* @throws SQLException
*/
@Override
public List<StudentBean> findName_ID(String id,String num) throws SQLException {
return queryRunner.query("SELECT * FROM sstudent WHERE sname= ? OR sidcard = ? OR sstudynum = ?",new BeanListHandler<StudentBean>(StudentBean.class),id,id,num);
}
/**
* 根据身份证编辑学生信息
* @param studentBean
* @throws SQLException
*/
@Override
public void EditStudent(StudentBean studentBean) throws SQLException {
queryRunner.update("UPDATE sstudent SET sname = ?,ssex = ?,sstudynum = ?,sschool = ?,sclass = ?,smajor = ?,sphone = ? WHERE sidcard = ?",studentBean.getSname(),
studentBean.getSsex(),studentBean.getSstudynum(),studentBean.getSschool(),studentBean.getSclass(),studentBean.getSmajor(),studentBean.getSphone(),studentBean.getSidcard());
}
/**
* 批量删除学生
* @param sids
* @throws SQLException
*/
@Override
public void deleteStudentes(String sids) throws SQLException {
queryRunner.update("DELETE FROM sstudent WHERE sid = ?",sids);
}
/**
* 查询性别
* 根据性别显示学生信息
* @param state
* @return
* @throws SQLException
*/
@Override
public List<StudentBean> findSex(String state) throws SQLException {
return queryRunner.query("SELECT * FROM sstudent WHERE ssex = ?",new BeanListHandler<StudentBean>(StudentBean.class),state);
}
/**
* 学生登录查询信息
* 学生登录的时候根据用户输入参数查询所有信息
* @param num
* @return
* @throws SQLException
*/
@Override
public StudentBean findStudentid_num(String num) throws SQLException {
return queryRunner.query("SELECT * FROM sstudent WHERE sidcard = ? OR sstudynum = ? OR suser = ?",new BeanHandler<StudentBean>(StudentBean.class),num,num,num);
}
/**
* 查询学生用户名
* @param num
* @return
* @throws SQLException
*/
@Override
public StudentBean findStudentuser(String num) throws SQLException {
return queryRunner.query("SELECT * FROM sstudent WHERE suser = ?",new BeanHandler<StudentBean>(StudentBean.class),num);
}
/**
* 学生修改自己的密码
* 学生登录学生页面可自行修改登录密码
* @param studentBean
* @throws SQLException
*/
@Override
public void EditStudentpassword(StudentBean studentBean) throws SQLException {
queryRunner.update("UPDATE sstudent SET spassword = ?, sdate = ? WHERE sstudynum = ? OR sidcard = ?",
studentBean.getSpassword(),studentBean.getSdate(),studentBean.getSstudynum(),studentBean.getSidcard());
}
/**
* 查询总记录数
* @return
* @throws SQLException
*/
@Override
public int findcount() throws SQLException {
Long resust = (Long) queryRunner.query("SELECT count(*) FROM sstudent", new ScalarHandler());
return resust.intValue();
}
/**
* 分页查询
* @param sql 要执行的sql语句
* @param param 参数
* @return
*/
public List<StudentBean> getStudentList(String sql, List<Object> param) {
//数据集合
List<StudentBean> list = new LinkedList<>();
try {
//获取数据库连接
Connection conn = MySQLTools.getConnection();
//预编译
PreparedStatement ps = conn.prepareStatement(sql);
//设置参数
if(param != null && param.size() > 0){
for(int i = 0;i < param.size();i++){
ps.setObject(i+1, param.get(i));
}
}
//执行sql语句
ResultSet rs = ps.executeQuery();
//获取元数据
ResultSetMetaData meta = rs.getMetaData();
//遍历结果集
while(rs.next()){
//创建对象
StudentBean stu = new StudentBean();
//遍历每个字段
for(int i=1;i <= meta.getColumnCount();i++){
String field = meta.getColumnName(i);
BeanUtils.setProperty(stu, field, rs.getObject(field));
}
//添加到集合
list.add(stu);
}
//关闭连接
MySQLTools.closeConnection();
MySQLTools.close(ps);
MySQLTools.close(rs);
} catch (Exception e) {
e.printStackTrace();
}
return list;
}
3.studentserviceimpl
代码如下（示例）：
public class StudentServiceImpl implements StudentServiceInter {
StudentDaoInter dao = new StudenDaoImpl();
/**
* 添加学生信息
* @param studentBean
* @throws SQLException
*/
@Override
public void AddStudent(StudentBean studentBean) throws SQLException {
dao.AddStudent(studentBean);
}
/**
* 查询总记录数
* @return
* @throws SQLException
*/
@Override
public int findcount() throws SQLException {
return dao.findcount();
}
/**
* 验证身份证信息是否重复
* @param id
* @return
* @throws SQLException
*/
@Override
public StudentBean findID(String id) throws SQLException {
return dao.findID(id);
}
/**
* 验证手机号是否重复
* @param phone
* @return
* @throws SQLException
*/
@Override
public StudentBean findPhone(String phone) throws SQLException {
return dao.findPhone(phone);
}
/**
* 根据学号和身份证号删除学生
* @param sid
* @param num
* @return
* @throws SQLException
*/
@Override
public void deleteStudent(String sid, String num) throws SQLException {
dao.deleteStudent(sid,num);
}
/**
* 根据学号或者姓名查询
* @param id
* @return
* @throws SQLException
*/
@Override
public List<StudentBean> findName_ID(String id,String num) throws SQLException {
return dao.findName_ID(id,num);
}
/**
* 根据身份证修改学生信息
* @param studentBean
* @throws SQLException
*/
@Override
public void EditStudent(StudentBean studentBean) throws SQLException {
dao.EditStudent(studentBean);
}
/**
* 批量删除学生
* @param sids
* @throws SQLException
*/
@Override
public void deleteStudentes(String sids) throws SQLException {
dao.deleteStudentes(sids);
}
/**
* 查询性别
* @param state
* @return
* @throws SQLException
*/
@Override
public List<StudentBean> findSex(String state) throws SQLException {
return dao.findSex(state);
}
/**
* 学生登录显示个人信息
* @param num
* @return
* @throws SQLException
*/
@Override
public StudentBean findStudentid_num(String num) throws SQLException {
return dao.findStudentid_num(num);
}
/**
* 查询用户名
* @param num
* @return
* @throws SQLException
*/
@Override
public StudentBean findStudentuser(String num) throws SQLException {
return dao.findStudentuser(num);
}
/**
* 学生修改自己的密码
* 学生登录学生页面可自行修改登录密码
* @param studentBean
* @throws SQLException
*/
@Override
public void EditStudentpassword(StudentBean studentBean) throws SQLException {
dao.EditStudentpassword(studentBean);
}
/**
* 验证学号信息是否重复
* @param num
* @return
* @throws SQLException
*/
@Override
public StudentBean findStudyNum(String num) throws SQLException {
return dao.findStudyNum(num);
}
/**
* 分页获取学生
*
* @param student 学生信息
* @param page 分页
* @return
*/
public String getStudentList(StudentBean student, PageBean page) throws SQLException {
//sql语句
StringBuffer sb = new StringBuffer("SELECT * FROM sstudent ");
//参数
List<Object> param = new LinkedList<>();
//判断条件
//添加排序
sb.append("ORDER BY sid DESC ");
//分页
if (page != null) {
param.add(page.getStart());
param.add(page.getSize());
sb.append("limit ?,?");
}
String sql = sb.toString().replaceFirst("AND", "WHERE");
//获取数据
List<StudentBean> list = dao.getStudentList(sql, param);
//获取总记录数
long total = findcount();
//定义Map
Map<String, Object> jsonMap = new HashMap<String, Object>();
//total键 存放总记录数，必须的
//rows键 存放每页记录 list
jsonMap.put("code", 0);
jsonMap.put("msg", "");
jsonMap.put("count", total);
jsonMap.put("data", list);
//格式化Map,以json格式返回数据
String result = JSONObject.fromObject(jsonMap).toString();
//返回
return result;
}
4.studentservlet
代码如下（示例）：
data = pd.read_csv(
@WebServlet("/StudentServlet.do")
public class StudentServlet extends HttpServlet {
StudentServiceInter stuserivce = new StudentServiceImpl();
ScoreServiceInter scoreservice = new ScoreServiceImpl();
UserServiceInter imgservice = new UserServiceImpl();
StuStatusServiceInter statusservice = new StuStatusServiceImpl();
/**
* doGET数据接收与转发
*
* @param request
* @param response
* @throws ServletException
* @throws IOException
*/
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
doPost(request,response);
}
/**
* doPOST数据获取
* @param request
* @param response
* @throws ServletException
* @throws IOException
*/
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
String method = request.getParameter("method");
try {
if ("StudentInfiList".equalsIgnoreCase(method)) {//管理员学生分页显示
do_StudentList(request, response);
} else if ("AddStudentSure".equalsIgnoreCase(method)) {//管理员添加学生提交
do_AddStudent(request, response);
} else if ("DelStudent".equalsIgnoreCase(method)) {//管理员删除单个学生提交
do_DelStudent(request, response);
} else if ("ReshStudent".equalsIgnoreCase(method)) {//管理员刷新
do_ReshStudent(request, response);
} else if ("EditStudent".equalsIgnoreCase(method)) {//管理员编辑学生信息按钮
do_EditStudentForword(request, response);
} else if ("EditStudentSure".equalsIgnoreCase(method)) {//管理员编辑学生信息提交按钮
do_EditStudent(request, response);
}else if("DelStudentes".equalsIgnoreCase(method)){//管理员批量删除学生信息
do_DelStudentes(request,response);
}else if("StudentSexList".equalsIgnoreCase(method)){//管理员查询学生状态信息（男女）
do_InquireState(request,response);
}else if("EditStudentPasswordSure".equalsIgnoreCase(method)){ //学生修改自己登录密码
do_EditStudentPwd(request,response);
}else if("StudentfindStatus".equalsIgnoreCase(method)){ //学生查询自己学籍信息
do_StudentfindStatus(request,response);
}
} catch (SQLException | InvocationTargetException | IllegalAccessException e) {
e.printStackTrace();
}
}
/**
* 分页获取学生信息
* @param request
* @param response
* @throws ServletException
* @throws IOException
* @throws SQLException
*/
private void do_StudentList(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException, SQLException {
int page = Integer.parseInt(request.getParameter("page"));
int limit = Integer.parseInt(request.getParameter("limit"));
System.out.println("用户查询当前页为：" + page + "；每页查询数量为：" + limit + ";");
//封装参数
StudentBean student = new StudentBean();
//获取数据
String result = stuserivce.getStudentList(student, new PageBean(page, limit));
//返回数据
System.out.println("查询到的数据为：\n" + result + ";\n");
response.getWriter().write(result);
}
/**
* 添加学生信息
*
* @param request
* @param response
* @throws ServletException
* @throws IOException
* @throws SQLException
* @throws InvocationTargetException
* @throws IllegalAccessException
*/
private void do_AddStudent(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException, SQLException, InvocationTargetException, IllegalAccessException {
String name = request.getParameter("sname");
String Num = request.getParameter("sstudynum");
String ID = request.getParameter("sidcard");
String Phone = request.getParameter("sphone");
System.out.println("用户输入学号为：" + Num + "；身份证号码为：" + ID + "；电话号码为：" + Phone + ";");
StudentBean student = new StudentBean();
//获取参数名
Enumeration<String> pNames = request.getParameterNames();
SimpleDateFormat df = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
String strCurrentTime = df.format(new Date());
student.setSdate(strCurrentTime);
while (pNames.hasMoreElements()) {
String pName = pNames.nextElement();
String value = request.getParameter(pName);
BeanUtils.setProperty(student, pName, value);
}
String msg = null;
//手机号正则验证
if ((TextTools.checkPhoneNo(Phone)) && (Phone.length() == 11)) {
System.out.println("手机号正确");
} else {
msg = "Add_PhonelensFalse";
response.getWriter().write(msg);
return;
}
if ((TextTools.checkIDNo(ID)) && (ID.length() == 18)) {
System.out.println("身份证正确");
} else {
msg = "Add_IDlensFalse";
response.getWriter().write(msg);
return;
}
if (Num.length() != 10) {
System.out.println("学号格式错误");
msg = "Add_StudylensFalse";
response.getWriter().write(msg);
return;
}
String suser = TextTools.getRandomString(6);//随机生成用户名
student.setSuser(suser);
StudentBean user = stuserivce.findStudentuser(suser); //查询用户名
if (user != null){
System.out.println("用户名重复");
msg = "Add_UserFalse";
response.getWriter().write(msg);
return;
}
StudentBean id = stuserivce.findID(ID); //查询身份证
StudentBean num = stuserivce.findStudyNum(Num); //查询学号
StudentBean phone = stuserivce.findPhone(Phone); //查询电话号码
if (id != null) {
System.out.println("查询到的身份证信息为：" + id + ";");
msg = "Add_IDFalse";
}
if (num != null) {
System.out.println("查询到的学号信息为：" + num + ";");
msg = "Add_StudyFalse";
}
if (phone != null) {
System.out.println("查询到的电话号码信息为：" + Phone + ";");
msg = "Add_PhoneFalse";
}
if ((id == null) && (num == null)) {
stuserivce.AddStudent(student); //添加学生
scoreservice.ScooreAddStudent(Num,name); //添加成绩列表的学号
imgservice.ImgAddStudent(ID); //添加头像的身份证
msg = "Add_StudentTrue";
}
response.getWriter().write(msg);
}
/**
* 删除学生信息
*
* @param request
* @param response
* @throws ServletException
* @throws IOException
* @throws SQLException
*/
private void do_DelStudent(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException, SQLException {
String num = request.getParameter("num");
String Id = request.getParameter("Id");
System.out.println("管理员删除学号为：" + num + "， 身份证号码为：" + Id + " 的学生");
stuserivce.deleteStudent(Id, num); //删除学生
statusservice.EditStuStatus(Id); //编辑
response.getWriter().write("Del_True");
}
/**
* 根据条件查询
* 身份证姓名学号
* @param request
* @param response
* @throws ServletException
* @throws IOException
* @throws SQLException
*/
private void do_ReshStudent(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException, SQLException {
String id = request.getParameter("inputVal");
String num = request.getParameter("inputVal1");
System.out.println("用户输入姓名或者身份证号为：" + id + ";");
System.out.println("用户输入的学号为：" + num + ";");
List<StudentBean> list = stuserivce.findName_ID(id, num); //根据学号身份证查询
System.out.println("用户查询到的信息为：" + list + ";");
int count = stuserivce.findcount(); //查询数量
//定义Map
Map<String, Object> jsonMap = new HashMap<String, Object>();
jsonMap.put("code", 0);
jsonMap.put("msg", "");
jsonMap.put("count", count);
jsonMap.put("data", list);
//格式化Map,以json格式返回数据
String result = JSONObject.fromObject(jsonMap).toString();
//返回
response.getWriter().write(result);
}
/**
* 编辑学生信息页面跳转
* @param request
* @param response
* @throws ServletException
* @throws IOException
* @throws SQLException
*/
private void do_EditStudentForword(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException, SQLException, InvocationTargetException, IllegalAccessException {
String Id = request.getParameter("Id");
System.out.println("获取到学生身份证号码为:" + Id + ";");
StudentBean list = stuserivce.findID(Id); //根据身份证查询
System.out.println("身份证号获取的信息为：" + list + ";");
request.getSession().setAttribute("stu", list);
response.getWriter().write("Edit_True");
}
/**
* 编辑学生信息数据提交
* @param request
* @param response
* @throws ServletException
* @throws IOException
* @throws SQLException
* @throws InvocationTargetException
* @throws IllegalAccessException
*/
private void do_EditStudent(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException, SQLException, InvocationTargetException, IllegalAccessException {
//获取参数名
Enumeration<String> pNames = request.getParameterNames();
StudentBean student = new StudentBean();
while (pNames.hasMoreElements()) {
String pName = pNames.nextElement();
String value = request.getParameter(pName);
BeanUtils.setProperty(student, pName, value);
}
String Num = request.getParameter("sstudynum");
System.out.println("用户输入学号为：" + Num + ";");
String Phone = request.getParameter("sphone");
System.out.println("用户输入手机号为：" + Phone + ";");
String msg = null;
//手机号正则验证
if ((TextTools.checkPhoneNo(Phone)) && (Phone.length() == 11)) {
System.out.println("手机号正确");
} else {
msg = "Add_PhonelensFalse";
response.getWriter().write(msg);
return;
}
if (Num.length() != 10) {
System.out.println("学号格式错误");
msg = "Add_StudylensFalse";
response.getWriter().write(msg);
return;
}
stuserivce.EditStudent(student); //修改学生信息
msg = "Add_StudentTrue";
response.getWriter().write(msg);
}
/**
* 批量删除学生
* @param request
* @param response
* @throws ServletException
* @throws IOException
* @throws SQLException
* @throws InvocationTargetException
* @throws IllegalAccessException
*/
private void do_DelStudentes(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException, SQLException, InvocationTargetException, IllegalAccessException {
String id = request.getParameter("ids");
String a[]=id.split(",");
for(int i = 0 ; i < a.length ; i++) {
String ida = a[i];
System.out.println("管理员删除ID为："+ida+" 的学生");
stuserivce.deleteStudentes(ida); //删除学生
statusservice.EditStuStatus(ida); //删除学生时修改学籍状态
}
response.getWriter().write("DelStudents_True");
}
/**
* 根据性别查询学生
* @param request
* @param response
* @throws ServletException
* @throws IOException
* @throws SQLException
* @throws InvocationTargetException
* @throws IllegalAccessException
*/
private void do_InquireState(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException, SQLException, InvocationTargetException, IllegalAccessException {
String state = request.getParameter("state");
System.out.println("用户选择状态为："+state+";");
List<StudentBean> list = stuserivce.findSex(state); //性别查询学生
System.out.println("查询到的数据为："+list+" ;");
int count = stuserivce.findcount(); //查询数量
//定义Map
Map<String, Object> jsonMap = new HashMap<String, Object>();
jsonMap.put("code", 0);
jsonMap.put("msg", "");
jsonMap.put("count", count);
jsonMap.put("data", list);
//格式化Map,以json格式返回数据
String result = JSONObject.fromObject(jsonMap).toString();
//返回
response.getWriter().write(result);
}
/**
* 学生修改自己账号密码
* 学生登录学生页面可自行修改登录密码
* @param request
* @param response
* @throws ServletException
* @throws IOException
* @throws SQLException
* @throws InvocationTargetException
* @throws IllegalAccessException
*/
private void do_EditStudentPwd(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException, SQLException, InvocationTargetException, IllegalAccessException {
String id_num = request.getParameter("id_num");
String newpwd = request.getParameter("newpassword");
SimpleDateFormat df = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
String strCurrentTime = df.format(new Date());
StudentBean student = new StudentBean();
student.setSpassword(newpwd);
student.setSstudynum(id_num);
student.setSidcard(id_num);
student.setSdate(strCurrentTime);
stuserivce.EditStudentpassword(student);
response.getWriter().write("stupassword");
}
/**
* 学生查询学籍信息
* @param request
* @param response
* @throws ServletException
* @throws IOException
* @throws SQLException
* @throws InvocationTargetException
* @throws IllegalAccessException
*/
private void do_StudentfindStatus(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException, SQLException, InvocationTargetException, IllegalAccessException {
String id = request.getParameter("id");
System.out.println(id);
StuStatusBean list = statusservice.findIDStuStatus(id);
System.out.println(list);
if(list == null){
response.getWriter().write("NoStustatus");
}else {
response.getWriter().write("StuStatusTrue");
request.getServletContext().setAttribute("stu_status", list);
}
}
总结
以上就是今天要讲的内容，最近由于各种原因，没时间写文章。大家有问题，关注公众 ”俊俊同学的笔记“ 后台私信我都可。感谢大家阅读。