标签：ext request getname app amp stat 多个 tco package
职责链模式（Chain of Responsibility）,使多个对象都有机会处理请求，从而避免请求的发送者和接受者之间的耦合关系。将这个对象连成一条链，并沿着这条链传递该请求，直到有一个对象处理它为止。
职责链的好处：客户提交一个请求时，请求是沿着链传递直至有一个职责对象负责处理它。
请求不用管那个对象来处理，反正最后该请求就是会被处理。这就使得接受者和发送者都没有对方的明确信息，且链中的对象自己也并不知道链的结构。结果是职责链可简化对象的相互连接，它们仅需保持一个指向其后继者的引用，而不需保持它所有的候选接受者的引用。
在客户端定义链的结构，也就是说，可以随时地增加或修改处理一个请求的结构。增强了给对象指派职责的灵活性。
但是，一个请求极有可能到了链的末端都得不到处理，或者因为没有正确配置而得不到处理，这就很糟糕，需要事先考虑全面。
可解决原来大量的分支判断造成难维护、灵活性差的问题。
Request类
package chain_of_responsibility; public class Request { private String requstType; private String requestContent; private int requestNumber; private String requestName; public String getRequstType() { return requstType; } public void setRequstType(String requstType) { this.requstType = requstType; } public String getRequestContent() { return requestContent; } public void setRequestContent(String requestContent) { this.requestContent = requestContent; } public int getRequestNumber() { return requestNumber; } public void setRequestNumber(int requestNumber) { this.requestNumber = requestNumber; } public String getRequestName() { return requestName; } public void setRequestName(String requestName) { this.requestName = requestName; } }
Manager类
package chain_of_responsibility; public abstract class Manager { private String name; protected Manager supperManager; public void setManager(Manager supperManager){ this.supperManager = supperManager; } public Manager(String name) { super(); this.name = name; } public String getName() { return name; } public void setName(String name) { this.name = name; } public abstract void requestApply(Request req); }
JLManager类
package chain_of_responsibility; public class JLManager extends Manager { public JLManager(String name) { super(name); } @Override public void requestApply(Request req) { if("请假".equals(req.getRequstType())&&req.getRequestNumber()<3){ System.out.println("请假人："+req.getRequestName()+",请假内容："+req.getRequestContent()+"请假天数："+req.getRequestNumber()+"。经理批准了"); }else{ if(supperManager!=null){ supperManager.requestApply(req); } } } }
ZJManager类
package chain_of_responsibility; public class ZJManager extends Manager { public ZJManager(String name) { super(name); } @Override public void requestApply(Request req) { if("请假".equals(req.getRequstType())){ System.out.println("请假人："+req.getRequestName()+",请假内容："+req.getRequestContent()+"请假天数："+req.getRequestNumber()+"。总监批准了"); }else if("加薪".equals(req.getRequstType())&&req.getRequestNumber()<=500){ System.out.println("申请加薪人："+req.getRequestName()+",加薪说明："+req.getRequestContent()+"加薪数："+req.getRequestNumber()+"。总监批准了"); }else{ if(supperManager!=null){ supperManager.requestApply(req); } } } }
ZJLManager类
package chain_of_responsibility; public class ZJLManager extends Manager { public ZJLManager(String name) { super(name); } @Override public void requestApply(Request req) { if("请假".equals(req.getRequstType())){ System.out.println("请假人："+req.getRequestName()+",请假内容："+req.getRequestContent()+"请假天数："+req.getRequestNumber()+"。总经理批准了"); }else if("加薪".equals(req.getRequstType())&&req.getRequestNumber()<=2000){ System.out.println("申请加薪人："+req.getRequestName()+",加薪说明："+req.getRequestContent()+"加薪数："+req.getRequestNumber()+"。总经理批准了"); }else{ System.out.println("要求过了，驳回申请"); } } }
Business类
package chain_of_responsibility; public class Business { public static void main(String[] args) { Request req = new Request(); req.setRequstType("请假"); req.setRequestContent("家里有事"); req.setRequestNumber(2); req.setRequestName("新人"); Manager jl = new JLManager("经理"); Manager zj = new ZJManager("总监"); Manager zjl = new ZJLManager("总经理"); jl.setManager(zj); zj.setManager(zjl); jl.requestApply(req); Request req1 = new Request(); req1.setRequstType("请假"); req1.setRequestContent("家里有事"); req1.setRequestNumber(5); req1.setRequestName("新人"); jl.requestApply(req1); Request req2 = new Request(); req2.setRequstType("加薪"); req2.setRequestContent("表现优秀"); req2.setRequestNumber(1000); req2.setRequestName("新人"); jl.requestApply(req2); Request req3 = new Request(); req3.setRequstType("加薪"); req3.setRequestContent("表现特好"); req3.setRequestNumber(2500); req3.setRequestName("新人"); jl.requestApply(req3); } }
标签：ext request getname app amp stat 多个 tco package
原文地址：http://www.cnblogs.com/ccgjava/p/7158513.html
