前言
想要做网页Web聊天系统，但是如何对消息特殊字符以及敏感词进行过滤、以及处理呢？
请见下方。
敏感消息过滤链设计
在这里插入图片描述
代码
不啰嗦直接上源码：
package com.zzx.design.pattern.zzxdesignpattern.mashibin.zerenlian_pattern.sensitive_filter_chain.filter;
/**
* @author zhouzhixiang
* @company 叮当快药科技集团有限公司
* @Date 2019-11-02
*/
public interface Filter {
String doFilter(String message);
}
package com.zzx.design.pattern.zzxdesignpattern.mashibin.zerenlian_pattern.sensitive_filter_chain.filter;
import java.util.ArrayList;
import java.util.List;
import java.util.concurrent.atomic.AtomicReference;
/**
* 过滤器链
* @author zhouzhixiang
* @company 叮当快药科技集团有限公司
* @Date 2019-11-03
*/
public class FilterChain implements Filter {
private List<Filter> filters = new ArrayList<>();
public FilterChain addFilter(Filter filter) {
filters.add(filter);
return this;
}
public String doFilter(String message) {
AtomicReference<String> s = new AtomicReference<>(message);
filters.forEach(f -> s.set(f.doFilter(s.get())));
return s.get();
}
}
package com.zzx.design.pattern.zzxdesignpattern.mashibin.zerenlian_pattern.sensitive_filter_chain.filter;
/**
* 表情包过滤器
* @author zhouzhixiang
* @company 叮当快药科技集团有限公司
* @Date 2019-11-03
*/
public class FaceFilter implements Filter {
@Override
public String doFilter(String message) {
return message.replace("@", "^V^").replace("&", "^V^");
}
}
package com.zzx.design.pattern.zzxdesignpattern.mashibin.zerenlian_pattern.sensitive_filter_chain.filter;
/**
* Html内容过滤器
* @author zhouzhixiang
* @company 叮当快药科技集团有限公司
* @Date 2019-11-02
*/
public class HtmlFilter implements Filter {
@Override
public String doFilter(String message) {
return message.replace("<", "[").replace("/>", "]");
}
}
package com.zzx.design.pattern.zzxdesignpattern.mashibin.zerenlian_pattern.sensitive_filter_chain.filter;
/**
* 敏感词过滤器
* @author zhouzhixiang
* @company 叮当快药科技集团有限公司
* @Date 2019-11-02
*/
public class SensitiveFilter implements Filter {
@Override
public String doFilter(String message) {
return message.replace("王八蛋", "*").replace("软蛋", "*").replace("滚犊子", "*");
}
}
package com.zzx.design.pattern.zzxdesignpattern.mashibin.zerenlian_pattern.sensitive_filter_chain;
import com.zzx.design.pattern.zzxdesignpattern.mashibin.zerenlian_pattern.sensitive_filter_chain.filter.FilterChain;
import lombok.AllArgsConstructor;
/**
* 信息处理器
* @author zhouzhixiang
* @company 叮当快药科技集团有限公司
* @Date 2019-11-02
*/
@AllArgsConstructor
public class MessageProsessor {
private String message;
private FilterChain filterChain;
public String process() {
return filterChain.doFilter(message);
}
}
测试类：
package com.zzx.design.pattern.zzxdesignpattern.mashibin.zerenlian_pattern.sensitive_filter_chain;
import com.zzx.design.pattern.zzxdesignpattern.mashibin.zerenlian_pattern.sensitive_filter_chain.filter.*;
/**
* 敏感信息过滤-》责任链设计模式
* @author zhouzhixiang
* @company 叮当快药科技集团有限公司
* @Date 2019-11-02
*/
public class Main {
public static void main(String[] args) {
String msg = "你好，软蛋，@，<script/>，我在北京上班";
FilterChain fc = new FilterChain();
fc.addFilter(new HtmlFilter())
.addFilter(new FaceFilter());
FilterChain fc2 = new FilterChain();
fc2.addFilter(new SensitiveFilter());
fc.addFilter(fc2);
String result = new MessageProsessor(msg, fc).process();
System.out.println(result);
}
}
