70 lines
2.1 KiB
Java
70 lines
2.1 KiB
Java
package cn.bunny.pattern7.demo1;
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import lombok.Setter;
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public class Chain {
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// 过滤垃圾请求，为了演示需要清除【垃圾，辣鸡，腊鸡】这些词
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public static void main(String[] args) {
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Handler handlerA = new ConcreteHandlerA();
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Handler handlerB = new ConcreteHandlerB();
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Handler handlerC = new ConcreteHandlerC();
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// 设置责任链
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handlerA.setNextHandler(handlerB);
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handlerB.setNextHandler(handlerC);
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// 发起请求
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handlerA.handleRequest("过滤垃圾请求，为了演示需要清除【垃圾，辣鸡，腊鸡】这些词");
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}
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// ConcreteHandler类
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static class ConcreteHandlerA extends Handler {
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@Override
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public void handleRequest(String request) {
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// 处理"垃圾"
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String updatedRequest = request.replaceAll("垃圾", "");
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System.out.println("Handler A处理后: " + updatedRequest);
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if (nextHandler != null) {
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nextHandler.handleRequest(updatedRequest); // 传递修改后的请求
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}
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}
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}
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static class ConcreteHandlerB extends Handler {
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@Override
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public void handleRequest(String request) {
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// 处理"辣鸡"
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String updatedRequest = request.replaceAll("辣鸡", "");
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System.out.println("Handler B处理后: " + updatedRequest);
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if (nextHandler != null) {
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nextHandler.handleRequest(updatedRequest); // 传递修改后的请求
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}
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}
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}
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static class ConcreteHandlerC extends Handler {
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@Override
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public void handleRequest(String request) {
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// 处理"腊鸡"
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String updatedRequest = request.replaceAll("腊鸡", "");
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System.out.println("Handler C处理后: " + updatedRequest);
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if (nextHandler != null) {
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nextHandler.handleRequest(updatedRequest); // 传递修改后的请求
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}
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}
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}
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// Handler类
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@Setter
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abstract static class Handler {
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protected Handler nextHandler;
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public abstract void handleRequest(String request);
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}
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}
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