项目方案:Java请假审批流程
1. 简介
本项目旨在开发一个基于Java的请假审批系统,实现企业内部员工请假申请流程的自动化管理。该系统将通过一个统一的流程来处理请假申请,包括请假单的创建、审批流程的定义和执行、审批结果的记录等功能。
2. 功能需求
根据项目需求,我们需要实现以下功能:
- 员工可以创建请假申请。
- 管理员可以定义请假审批流程,并将其分配给相应的审批人员。
- 审批人员可以查看待审批的请假申请,并做出批准或拒绝的决定。
- 审批结果将被记录下来,便于后续查询和报表生成。
3. 系统设计
3.1 类图设计
classDiagram
class LeaveApplication {
-id: int
-applicant: String
-startTime: Date
-endTime: Date
-reason: String
-status: String
+create(): void
+submit(): void
}
class ApprovalProcess {
-id: int
-name: String
-approvers: List<String>
+addApprover(approver: String): void
+removeApprover(approver: String): void
+assignApprovers(leveApplication: LeaveApplication): void
}
interface Approver {
+approve(leaveApplication: LeaveApplication): void
+reject(leaveApplication: LeaveApplication): void
}
class ApproverImpl1 {
+approve(leaveApplication: LeaveApplication): void
+reject(leaveApplication: LeaveApplication): void
}
class ApproverImpl2 {
+approve(leaveApplication: LeaveApplication): void
+reject(leaveApplication: LeaveApplication): void
}
class LeaveApplicationDao {
+save(leaveApplication: LeaveApplication): void
+update(leaveApplication: LeaveApplication): void
+findById(id: int): LeaveApplication
}
class ApprovalProcessDao {
+save(approvalProcess: ApprovalProcess): void
+update(approvalProcess: ApprovalProcess): void
+findById(id: int): ApprovalProcess
}
3.2 系统架构
本系统采用三层架构,分为表示层、业务逻辑层和数据访问层。
- 表示层:负责接收用户的请求,展示数据和结果。
- 业务逻辑层:负责处理具体的业务逻辑,包括请假申请的创建、审批流程的定义和执行等。
- 数据访问层:负责与数据库进行交互,包括请假申请和审批流程的存储和查询。
4. 关键代码示例
4.1 LeaveApplication类
public class LeaveApplication {
private int id;
private String applicant;
private Date startTime;
private Date endTime;
private String reason;
private String status;
// 省略构造方法和Getter/Setter
public void create() {
// 创建请假申请
}
public void submit() {
// 提交请假申请
}
}
4.2 ApprovalProcess类
public class ApprovalProcess {
private int id;
private String name;
private List<String> approvers;
// 省略构造方法和Getter/Setter
public void addApprover(String approver) {
// 添加审批人员
}
public void removeApprover(String approver) {
// 移除审批人员
}
public void assignApprovers(LeaveApplication leaveApplication) {
// 分配审批人员
}
}
4.3 Approver接口和实现类
public interface Approver {
void approve(LeaveApplication leaveApplication);
void reject(LeaveApplication leaveApplication);
}
public class ApproverImpl1 implements Approver {
public void approve(LeaveApplication leaveApplication) {
// 批准请假申请
}
public void reject(LeaveApplication leaveApplication) {
// 拒绝请假申请
}
}
public class ApproverImpl2 implements Approver {
public void approve(LeaveApplication leaveApplication) {
// 批准