使用lucene query的CharFilter 去掉字符中的script脚本和html标签

1.准备数据,这里我从数据库读取一个带有html标签和script脚本的数据

代码:

@Before
    public void init(){
        SQLService sqlService = new SQLService();
        sqlService.regist(null);
        BaseDao bd = new BaseDao();
        String sql = "select * from t where title like '% 每天读一遍，舌头更无敌%'";
        lists = bd.getList(sql);
        System.out.println(lists.size());
        content = lists.get(0).get("content").toString();
//        System.out.println(content);
        
    }

2. 使用字符过滤器-HTMLStripCharFilter 和 MappingCharFilter.由于这些字符过滤器都是继承Reader的.所以可以像读取reader那样处理.

代码:

    @Test
    public void test2() throws IOException{
        
        StringBuilder sb = new StringBuilder();
        // html过滤
        HTMLStripCharFilter htmlscript = new HTMLStripCharFilter(new StringReader(content));
        
        //增加映射过滤  主要过滤掉换行符
        NormalizeCharMap.Builder builder = new NormalizeCharMap.Builder();
        builder.add( "\r", "" );//回车 
        builder.add( "\t", "" );//横向跳格
        builder.add( "\n", "" );//换行
        CharFilter cs = new MappingCharFilter( builder.build(),htmlscript );
        
        char[] buffer = new char[10240];  
        int count; 
        while ((count = cs.read(buffer)) != -1) {  
            sb.append(new String(buffer, 0, count));  
        }  
        System.out.println(sb.toString());
        cs.close();
        
//        String keywords = HanLP.extractKeyword(sb.toString(), 20).toString();
//        System.out.println(keywords);
    }

处理结果:

亲爱的小伙伴们，累了，就放松一下吧！1. Can you can a can as a canner can can a can?­你能够像罐头工人一样装罐头吗？­
2. I wish to wish the wish you wish to wish, but if you wish the wish the witch wishes, I won't wish the wish you wish to 
wish.­  我希望梦想着你梦想中的梦想，但是如果你梦想着女巫的梦想，我就不想梦想着你梦想中的梦想。­3. I scream, you scream, we all scream 
for ice-cream!­  我叫喊，你叫喊，我们都喊着要冰淇淋!­4. How many cookies could a good cook cook if a good cook could cook cookies?­ 
 A good cook could cook as much cookies as a good cook who could cook cookies.­  如果一个好的厨师能做小甜饼，那么他能做多少小甜饼呢？
一个好的厨师能做出和其它好厨师一样多的小甜饼。­5. The driver was drunk and drove the doctor's car directly into the deep ditch. 
这个司机喝醉了，他把医生的车开进了一个大深沟里。­6. Whether the weather be fine or whether the weather be not.­Whether the weather
 be cold or whether the weather be hot.­We'll weather the weather whether we like it or not.­无论是晴天或是阴天。­无论是冷或是暖，
­不管喜欢与否，我们都要经受风霜雨露。­7. Peter Piper picked a peck of pickled peppers.­  A peck of pickled peppers Peter Piper 
picked.­  If Peter Piper picked a peck of pickled peppers,­  Where's the peck of pickled peppers Peter Piper picked?­  
彼德派柏捏起一撮泡菜。­  彼德派柏捏起的是一撮泡菜。­  那么彼德派捏起的泡菜在哪儿？­8. I thought a thought. But the thought I thought
 wasn't the thought I thought I thought.­  If the thought I thought I thought had been the thought I thought, I wouldn't 
have thought so much.­  我有一种想法，但是我的这种想法不是我曾经想到的那种想法。如果这种想法是我曾经想到的想法，我就不会想那么多了。
­9. Amid the mists and coldest frosts,­  With barest wrists and stoutest boasts,­  He thrusts his fists against the posts,­  
And still insists he sees the ghosts.­  雾蒙蒙，冰霜冻，­  手腕儿空空，话儿涌，­  只见他猛所拳头往柱子上砸，­  直说自己把鬼碰。
­10. Badmin was able to beat Bill at billiards, but Bill always beat Badmin badly at badminton.­   
巴德明在台球上能够打败比尔，但是打羽毛球比尔常常大败巴德明。­11. Betty beat a bit of butter to make a better butter.­   
贝蒂敲打一小块黄油要做一块更好的奶油面。­12. Rita repeated what Reardon recited when Reardon read the remarks.­