package web.controller;
import com.alibaba.excel.EasyExcel;
import config.SpringContextUtil;
import entity.Course;
import entity.Leave;
import entity.LeaveData;
import entity.Student;
import jakarta.servlet.RequestDispatcher;
import jakarta.servlet.ServletException;
import jakarta.servlet.annotation.WebServlet;
import jakarta.servlet.http.HttpServlet;
import jakarta.servlet.http.HttpServletRequest;
import jakarta.servlet.http.HttpServletResponse;
import org.springframework.beans.factory.annotation.Autowired;
import service.CourseService;
import service.LeaveService;
import serviceImpl.CourseServiceImpl;
import serviceImpl.LeaveServiceImpl;
import java.io.*;
import java.net.URLEncoder;
import java.security.SecureRandom;
import java.text.SimpleDateFormat;
import java.time.LocalDateTime;
import java.time.ZoneId;
import java.time.format.DateTimeFormatter;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;
@WebServlet(name = "leave", urlPatterns = "/leave")
public class LeaveServlet extends HttpServlet {
private String leave_list_page = "/WEB-INF/views/student/student_leave_list.jsp";
private String leave_viewAdd_page = "/WEB-INF/views/student/student_leave_add.jsp";
private String instructor_leave_list_page = "/WEB-INF/views/instructor/instructor_leave_list.jsp";
private String instructor_leave_viewExamine_page = "/WEB-INF/views/instructor/instructor_leave_examine.jsp";
private String instructor_leave_viewExport_page = "/WEB-INF/views/instructor/instructor_export_leave_list.jsp";
@Autowired
private LeaveService leaveService;
@Autowired
private CourseService courseService;
@Override
public void init() throws ServletException {
this.leaveService = (LeaveServiceImpl) SpringContextUtil.getBean("leaveServiceImpl", LeaveServiceImpl.class);
this.courseService = (CourseServiceImpl) SpringContextUtil.getBean("courseServiceImpl", CourseServiceImpl.class);
}
@Override
protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
String action = req.getParameter("action");
if (action == null) {
List<Leave> leaves = leaveService.getAllLeave();
req.setAttribute("leaves", leaves);
RequestDispatcher dispatcher = req.getRequestDispatcher(leave_list_page);
dispatcher.forward(req, resp);
} else if (action.equals("delete")) {
String leaveID = req.getParameter("leaveID");
boolean flag = leaveService.deleteLeave(leaveID);
if (flag) {
String message = "删除成功!";
resp.setContentType("text/html;charset=UTF-8");
String jsCode = "<script>alert('" + message + "');window.location.href='" + req.getContextPath() + "/leave';</script>";
resp.getWriter().write(jsCode);
}
} else if (action.equals("viewAdd")) {
/*
* 给请假申请表单生成leaveID
* */
LocalDateTime now = LocalDateTime.now();
DateTimeFormatter formatter = DateTimeFormatter.ofPattern("yyyyMMddHHmmss");
String text = now.format(formatter);
SecureRandom random = new SecureRandom();
int randomNum = 100 + random.nextInt(900);
String randomNumberString = String.valueOf(randomNum);
String leaveID = (text + randomNumberString);
req.setAttribute("leaveID", leaveID);
/*
* 将课程列表传入
* */
List<Course> courses = courseService.getAllCourses();
req.setAttribute("courses", courses);
RequestDispatcher dispatcher = req.getRequestDispatcher(leave_viewAdd_page);
dispatcher.forward(req, resp);
} else if (action.equals("add")) {
String leaveID = req.getParameter("leaveID");
String courseID = req.getParameter("courseID");
String reason = req.getParameter("reason");
int daynum = Integer.parseInt(req.getParameter("daynum"));
/*
* 生成当下时间用作请假申请时间(applytime)
* */
LocalDateTime now = LocalDateTime.now();
Date applytime = Date.from(now.atZone(ZoneId.systemDefault()).toInstant());
/*
* 获取存在会话里的学号
* */
Student student = (Student) req.getSession().getAttribute("student");
String stuNo = student.getStuID();
String status = "0";
Leave leave = new Leave(leaveID, courseID, reason, daynum, stuNo, applytime, status);
boolean flag = leaveService.addLeave(leave);
if (flag) {
String message = "添加成功!";
resp.setContentType("text/html;charset=UTF-8");
String jsCode = "<script>alert('" + message + "');window.location.href='" + req.getContextPath() + "/leave';</script>";
resp.getWriter().write(jsCode);
}
} else if (action.equals("viewLeavelist")) {
List<Leave> leaves = leaveService.getAllLeave();
req.setAttribute("leaves", leaves);
RequestDispatcher dispatcher = req.getRequestDispatcher(instructor_leave_list_page);
dispatcher.forward(req, resp);
} else if (action.equals(("viewExamine"))) {
String leaveID = req.getParameter("leaveID");
Leave leave = leaveService.getLeaveByLeaveID(leaveID);
req.setAttribute("leave", leave);
RequestDispatcher dispatcher = req.getRequestDispatcher(instructor_leave_viewExamine_page);
dispatcher.forward(req, resp);
} else if (action.equals("examine")) {
String leaveID = req.getParameter("leaveID");
String opinion = req.getParameter("opinion");
String status = req.getParameter("status");
/*
* 生成当下时间用作请假审核时间(audittime)
* */
LocalDateTime now = LocalDateTime.now();
Date audittime = Date.from(now.atZone(ZoneId.systemDefault()).toInstant());
Leave leave = new Leave(leaveID, opinion, status, audittime);
boolean flag = leaveService.examineLeave(leave);
if (flag) {
String message = "审核成功!";
resp.setContentType("text/html;charset=UTF-8");
String jsCode = "<script>alert('" + message + "');window.location.href='" + req.getContextPath() + "/leave?action=viewLeavelist';</script>";
resp.getWriter().write(jsCode);
}
} else if (action.equals("search")) {
String leaveID = req.getParameter("leaveID");
String courseID = req.getParameter("courseID");
String stuNo = req.getParameter("stuNo");
List<Leave> leaves = leaveService.searchLeave(leaveID, courseID, stuNo);
req.getSession().setAttribute("leaves", leaves);
req.setAttribute("leaves", leaves);
/*
* 处理时间数据上的格式
* */
/*SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
List<String> applytimes = new ArrayList<>();
List<String> audittimes = new ArrayList<>();
for (Leave leave : leaves){
applytimes.add(sdf.format(leave.getApplytime()));
audittimes.add(sdf.format(leave.getAudittime()));
}
req.setAttribute("applytimes", applytimes);
req.setAttribute("audittimes", audittimes);*/
RequestDispatcher dispatcher = req.getRequestDispatcher(instructor_leave_viewExport_page);
dispatcher.forward(req, resp);
} else if (action.equals("viewExport")) {
RequestDispatcher dispatcher = req.getRequestDispatcher(instructor_leave
2024秋学期期中课设（大三）：请假系统，软件架构：采用spring管理，mybatis，servlet.zip【源码+sql文件】 （228个子文件） 
LeaveServlet.class 11KB StudentServlet.class 6KB CourseServlet.class 6KB InstructorServlet.class 6KB ClassesServlet.class 6KB DepartmentServlet.class 5KB LoginServlet.class 4KB DemoData.class 4KB Leave.class 4KB Student.class 4KB UserServlet.class 3KB LeaveData.class 3KB Course.class 3KB Instructor.class 2KB Classes.class 2KB User.class 2KB InstructorServiceImpl.class 2KB StudentServiceImpl.class 2KB UserServiceImpl.class 2KB LeaveServiceImpl.class 2KB DepartmentServiceImpl.class 2KB ClassesServiceImpl.class 2KB CourseServiceImpl.class 2KB Department.class 1KB EncodeFilter.class 1KB InitServlet.class 1KB test.class 1KB SpringContextUtil.class 892B InstructorMapper.class 890B StudentMapper.class 842B LeaveMapper.class 752B DepartmentMapper.class 743B InstructorService.class 722B ClassesMapper.class 716B CourseMapper.class 710B DepartmentService.class 700B StudentService.class 676B LeaveService.class 604B ClassesService.class 586B CourseService.class 578B UserMapper.class 432B UserService.class 304B .gitignore 182B
poi-ooxml-lite-5.2.5.jar 5.67MB druid-1.2.19.jar 3.72MB jakarta.servlet.jsp.jstl-2.0.0.jar 3.53MB poi-5.2.5.jar 2.84MB mysql-connector-j-8.0.33.jar 2.37MB commons-math3-3.6.1.jar 2.11MB xmlbeans-5.2.0.jar 2.1MB lombok-1.18.36.jar 1.96MB poi-ooxml-5.2.5.jar 1.93MB mybatis-3.5.16.jar 1.73MB ehcache-3.9.11.jar 1.71MB protobuf-java-3.21.9.jar 1.59MB spring-core-5.2.25.RELEASE.jar 1.38MB spring-context-5.2.25.RELEASE.jar 1.18MB commons-compress-1.25.0.jar 1.03MB thymeleaf-3.1.2.RELEASE.jar 916KB javassist-3.29.0-GA.jar 775KB commons-collections4-4.4.jar 734KB spring-beans-5.2.25.RELEASE.jar 673KB spring-test-5.2.25.RELEASE.jar 670KB easyexcel-core-4.0.3.jar 528KB commons-io-2.15.0.jar 489KB easyexcel-support-3.3.4.jar 448KB spring-jdbc-5.2.25.RELEASE.jar 400KB junit-4.13.2.jar 376KB spring-aop-5.2.25.RELEASE.jar 365KB servlet-api.jar 358KB servlet-api.jar 358KB commons-codec-1.16.0.jar 352KB jakarta.servlet-api-6.0.0.jar 339KB log4j-api-2.21.1.jar 310KB spring-tx-5.2.25.RELEASE.jar 307KB jakarta.servlet-api-5.0.0.jar 301KB spring-expression-5.2.25.RELEASE.jar 279KB ognl-3.3.4.jar 259KB attoparser-2.0.7.RELEASE.jar 241KB taglibs-standard-impl-1.2.5.jar 202KB thymeleaf-spring5-3.1.2.RELEASE.jar 182KB unbescape-1.1.6.RELEASE.jar 170KB jakarta.xml.bind-api-3.0.0.jar 126KB curvesapi-1.08.jar 114KB jakarta.el-api-5.0.0.jar 86KB jakarta.el-api-4.0.0.jar 79KB jsp-api.jar 77KB mybatis-spring-2.0.6.jar 70KB jakarta.servlet.jsp-api-3.1.0.jar 69KB jakarta.servlet.jsp-api-3.0.0.jar 65KB slf4j-api-2.0.7.jar 62KB jakarta.activation-2.0.0.jar 61KB commons-csv-1.11.0.jar 55KB jakarta.servlet.jsp.jstl-api-3.0.0.jar 45KB jakarta.servlet.jsp.jstl-api-2.0.0.jar 45KB hamcrest-core-1.3.jar 44KB slf4j-api-1.7.36.jar 40KB SparseBitSet-1.3.jar 25KB spring-jcl-5.2.25.RELEASE.jar 23KB easyexcel-4.0.3.jar 3KB共 228 条
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