基于JavaBean的学生请假销假管理系统代码

好的，以下是一个基于JavaBean的学生请假销假管理系统的代码示例：

1. 学生类（Student.java）

public class Student {
    private int id;
    private String name;
    private String className;
    
    // 构造函数
    public Student(int id, String name, String className) {
        this.id = id;
        this.name = name;
        this.className = className;
    }
    
    // getter和setter
    public int getId() {
        return id;
    }
    
    public void setId(int id) {
        this.id = id;
    }
    
    public String getName() {
        return name;
    }
    
    public void setName(String name) {
        this.name = name;
    }
    
    public String getClassName() {
        return className;
    }
    
    public void setClassName(String className) {
        this.className = className;
    }
}

2. 请假类（Leave.java）

public class Leave {
    private int id;
    private int studentId;
    private String startTime;
    private String endTime;
    private String reason;
    private String status;
    
    // 构造函数
    public Leave(int id, int studentId, String startTime, String endTime, String reason, String status) {
        this.id = id;
        this.studentId = studentId;
        this.startTime = startTime;
        this.endTime = endTime;
        this.reason = reason;
        this.status = status;
    }
    
    // getter和setter
    public int getId() {
        return id;
    }
    
    public void setId(int id) {
        this.id = id;
    }
    
    public int getStudentId() {
        return studentId;
    }
    
    public void setStudentId(int studentId) {
        this.studentId = studentId;
    }
    
    public String getStartTime() {
        return startTime;
    }
    
    public void setStartTime(String startTime) {
        this.startTime = startTime;
    }
    
    public String getEndTime() {
        return endTime;
    }
    
    public void setEndTime(String endTime) {
        this.endTime = endTime;
    }
    
    public String getReason() {
        return reason;
    }
    
    public void setReason(String reason) {
        this.reason = reason;
    }
    
    public String getStatus() {
        return status;
    }
    
    public void setStatus(String status) {
        this.status = status;
    }
}

3. 审批类（Approval.java）

public class Approval {
    private int id;
    private int leaveId;
    private int approverId;
    private String approveTime;
    private String result;
    
    // 构造函数
    public Approval(int id, int leaveId, int approverId, String approveTime, String result) {
        this.id = id;
        this.leaveId = leaveId;
        this.approverId = approverId;
        this.approveTime = approveTime;
        this.result = result;
    }
    
    // getter和setter
    public int getId() {
        return id;
    }
    
    public void setId(int id) {
        this.id = id;
    }
    
    public int getLeaveId() {
        return leaveId;
    }
    
    public void setLeaveId(int leaveId) {
        this.leaveId = leaveId;
    }
    
    public int getApproverId() {
        return approverId;
    }
    
    public void setApproverId(int approverId) {
        this.approverId = approverId;
    }
    
    public String getApproveTime() {
        return approveTime;
    }
    
    public void setApproveTime(String approveTime) {
        this.approveTime = approveTime;
    }
    
    public String getResult() {
        return result;
    }
    
    public void setResult(String result) {
        this.result = result;
    }
}

4. 主函数（Main.java）

import java.util.ArrayList;

public class Main {
    public static void main(String[] args) {
        ArrayList<Student> students = new ArrayList<>();
        students.add(new Student(1, "张三", "高一一班"));
        students.add(new Student(2, "李四", "高一一班"));
        students.add(new Student(3, "王五", "高一二班"));
        
        ArrayList<Leave> leaves = new ArrayList<>();
        leaves.add(new Leave(1, 1, "2021-10-01", "2021-10-03", "家里有事", "待审批"));
        leaves.add(new Leave(2, 2, "2021-10-02", "2021-10-04", "生病了", "待审批"));
        leaves.add(new Leave(3, 3, "2021-10-03", "2021-10-05", "去旅游", "待审批"));
        
        ArrayList<Approval> approvals = new ArrayList<>();
        
        // 学生提交请假申请
        for (Leave leave : leaves) {
            System.out.println("学生 " + students.get(leave.getStudentId() - 1).getName() 
                               + " 提交了请假申请，开始时间：" + leave.getStartTime() + "，结束时间：" + leave.getEndTime());
            
            // 审批人审批请假申请
            if (leave.getStatus().equals("待审批")) {
                System.out.println("请假申请待审批...");
                for (int i = 1; i <= 3; i++) {
                    if (i != leave.getStudentId()) {
                        approvals.add(new Approval(approvals.size() + 1, leave.getId(), i, "2021-10-01", ""));
                        System.out.println("审批人 " + i + " 已审批，请假申请状态：" + leave.getStatus());
                        if (leave.getStatus().equals("已批准")) {
                            break;
                        }
                    }
                }
            }
            
            // 学生销假
            if (leave.getStatus().equals("已批准")) {
                System.out.println("学生 " + students.get(leave.getStudentId() - 1).getName() 
                                   + " 已请假成功，开始时间：" + leave.getStartTime() + "，结束时间：" + leave.getEndTime());
                leave.setStatus("已销假");
                System.out.println("学生 " + students.get(leave.getStudentId() - 1).getName() 
                                   + " 已销假成功，开始时间：" + leave.getStartTime() + "，结束时间：" + leave.getEndTime());
            }
        }
    }
}

上述代码实现了学生请假销假管理系统的基本功能，包括学生提交请假申请、审批人审批请假申请、学生销假等操作。您可以根据实际需求进行修改和优化。