Java-马士兵设计模式学习笔记-责任链模式-处理数据

一、目标

数据提交前做各种处理

 

二、代码

1.MsgProcessor.java

 1 public class MsgProcessor {
 2     
 3     private List<Filter> filters = new ArrayList<Filter>();
 4     private String msg;
 5     
 6     public String getMsg() {
 7         return msg;
 8     }
 9 
10     public void setMsg(String msg) {
11         this.msg = msg;
12     }
13 
14     public String process() {
15         
16         filters.add(new SensitiveFilter());
17         filters.add(new HTMLFilter());
18         
19         String r = msg;
20         for(Filter f : filters){
21             r = f.doFilter(r);
22         }
23         return r;
24     }
25 }

 

2.Filter.java

1 public interface Filter {
2     public String doFilter(String str);
3 }

 

3.HTMLFilter.java

1 public class HTMLFilter implements Filter {
2 
3     @Override
4     public String doFilter(String str) {
5         return str.replace('<', '[').replace(">", "]");
6     }
7 
8 }

 

4.SensitiveFilter.java

public class SensitiveFilter implements Filter {

    @Override
    public String doFilter(String str) {
        return str.replace("敏感", "幸福");
    }

}

 

5.Test.java

public class Test {

    @org.junit.Test
    public void testFilter(){
        
        String msg = "<html>敏感字眼</html>"; 
        MsgProcessor processor = new MsgProcessor();
        processor.setMsg(msg);
        String result = processor.process();
        System.out.println(result);
        
    }

}

 

三、运行结果

posted @ 2015-06-20 17:10  shamgod  阅读(702)  评论(0)  编辑  收藏  举报
haha