大三每日总结

软件设计 石家庄铁道大学信息学院

实验15：职责链模式
本次实验属于模仿型实验，通过本次实验学生将掌握以下内容：
1、理解职责链模式的动机，掌握该模式的结构；
2、能够利用职责链模式解决实际问题。

[实验任务一]：财务审批
某物资管理系统中物资采购需要分级审批，主任可以审批1万元及以下的采购单，部门经理可以审批5万元及以下的采购单，副总经理可以审批10万元及以下的采购单，总经理可以审批20万元及以下的采购单，20万元以上的采购单需要开职工大会确定。现用职责链模式设计该系统。
实验要求：
1.提交类图；

2.提交源代码；
package ZeRen;

class ViceManager extends Leader {
public ViceManager(String name) {
super(name);
}

@Override
protected void handleRequest(ShoppingRequest request) {
if (request.getBillMoney() < 100000.00) {
System.out.println(name + "副经理处理物资采购" + request.getShoppingReason() + "采购资金" + request.getBillMoney() + "元");
} else {
if (this.successor != null) {
this.successor.handleRequest(request);
}
}
}
}
package ZeRen;

class DepartmentManager extends Leader {
public DepartmentManager(String name) {
super(name);
}

protected void handleRequest(ShoppingRequest request) {
if (request.getBillMoney() < 50000.00) {
System.out.println(name + "部门经理处理物资采购" + request.getShoppingReason() + "采购资金" + request.getBillMoney() + "元");
} else {
if (this.successor != null) {
this.successor.handleRequest(request);
}
}
}
}
package ZeRen;

class Director extends Leader {
public Director(String name) {
super(name);
}

public void handleRequest(ShoppingRequest request) {
if (request.getBillMoney() < 10000.00) {
System.out.println(name + "主任处理物资采购" + request.getShoppingReason() + "采购资金" + request.getBillMoney() + "元");
} else {
if (this.successor != null) {
this.successor.handleRequest(request);
}
}

}
}
package ZeRen;

class GeneralManager extends Leader {
public GeneralManager(String name) {
super(name);
}

@Override
protected void handleRequest(ShoppingRequest request) {
if (request.getBillMoney() < 200000.00) {
System.out.println(name + "总经理处理物资采购" + request.getShoppingReason() + "采购资金" + request.getBillMoney() + "元");
} else {
System.out.println("董事会将开会处理物资采购" + request.getShoppingReason() + "采购资金" + request.getBillMoney() + "元");
}
}
}
package ZeRen;

public abstract class Leader {
protected String name;
protected Leader successor;

public Leader(String name) {
this.name = name;
}

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

protected abstract void handleRequest(ShoppingRequest request);
}
package ZeRen;

public class ShoppingRequest {
private String shoppingReason;
private double billMoney;

public ShoppingRequest(String shoppingReason, double billMoney) {
this.shoppingReason = shoppingReason;
this.billMoney = billMoney;
}

public String getShoppingReason() {
return shoppingReason;
}

public void setShoppingReason(String shoppingReason) {
this.shoppingReason = shoppingReason;
}

public double getBillMoney() {
return billMoney;
}

public void setBillMoney(double billMoney) {
this.billMoney = billMoney;
}
}
package ZeRen;

class ViceManager extends Leader {
public ViceManager(String name) {
super(name);
}

@Override
protected void handleRequest(ShoppingRequest request) {
if (request.getBillMoney() < 100000.00) {
System.out.println(name + "副经理处理物资采购" + request.getShoppingReason() + "采购资金" + request.getBillMoney() + "元");
} else {
if (this.successor != null) {
this.successor.handleRequest(request);
}
}
}
}

3. 注意编程规范。