员工请假一天需要组长审批请假三天需要经理审批，请假七天需要老板审批，无权审批时转交给上级领导，用java设计模式责任链模式编写，给出完整代码

好的，以下是使用Java设计模式责任链模式实现员工请假审批的完整代码：

LeaveRequest.java：

public class LeaveRequest {
    private String name;
    private int days;

    public LeaveRequest(String name, int days) {
        this.name = name;
        this.days = days;
    }

    public String getName() {
        return name;
    }

    public int getDays() {
        return days;
    }
}

LeaveRequestHandler.java：

public abstract class LeaveRequestHandler {
    protected LeaveRequestHandler successor;

    public void setSuccessor(LeaveRequestHandler successor) {
        this.successor = successor;
    }

    public abstract void handleRequest(LeaveRequest leaveRequest);
}

GroupLeaderHandler.java：

public class GroupLeaderHandler extends LeaveRequestHandler {
    @Override
    public void handleRequest(LeaveRequest leaveRequest) {
        if (leaveRequest.getDays() <= 1) {
            System.out.println("Group Leader approved the leave request for " + leaveRequest.getDays() + " day(s).");
        } else {
            if (successor != null) {
                successor.handleRequest(leaveRequest);
            }
        }
    }
}

ManagerHandler.java：

public class ManagerHandler extends LeaveRequestHandler {
    @Override
    public void handleRequest(LeaveRequest leaveRequest) {
        if (leaveRequest.getDays() > 1 && leaveRequest.getDays() <= 3) {
            System.out.println("Manager approved the leave request for " + leaveRequest.getDays() + " day(s).");
        } else {
            if (successor != null) {
                successor.handleRequest(leaveRequest);
            }
        }
    }
}

BossHandler.java：

public class BossHandler extends LeaveRequestHandler {
    @Override
    public void handleRequest(LeaveRequest leaveRequest) {
        if (leaveRequest.getDays() > 3 && leaveRequest.getDays() <= 7) {
            System.out.println("Boss approved the leave request for " + leaveRequest.getDays() + " day(s).");
        } else {
            System.out.println("Sorry, your leave request is rejected.");
        }
    }
}

LeaveRequestTest.java：

public class LeaveRequestTest {
    public static void main(String[] args) {
        LeaveRequest leaveRequest = new LeaveRequest("Tom", 2);
        GroupLeaderHandler groupLeaderHandler = new GroupLeaderHandler();
        ManagerHandler managerHandler = new ManagerHandler();
        BossHandler bossHandler = new BossHandler();
        groupLeaderHandler.setSuccessor(managerHandler);
        managerHandler.setSuccessor(bossHandler);
        groupLeaderHandler.handleRequest(leaveRequest);
    }
}

这个例子中，Tom申请了两天的请假，程序会先将请求交给组长处理，由于请假时间超过了一天，组长就会将请求转交给经理处理，经理再将请求转交给老板处理，最终老板审批通过了Tom的请假请求。如果Tom申请了超过7天的请假，无论是哪个处理者，都会将请求拒绝。如果Tom申请了1天以内的请假，只有组长会处理请求，其他处理者不会处理。如果Tom申请了3天以内的请假，组长和经理会处理请求，老板不会处理。