web过滤敏感词

package demo;

import java.io.BufferedReader;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.util.Date;
import java.util.Enumeration;
import java.util.Properties;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

import org.apache.lucene.document.Document;
import org.apache.lucene.document.Field;

/*
 * 利用正在表达式查找敏感词
 */
public class KeyWordFilter {
 private static Pattern pattern = null;  
      public static void initPattern(){  
            StringBuffer patternBuf = new StringBuffer("");  
             try{  
              InputStream in = KeyWordFilter.class.getClassLoader().getResourceAsStream("word.txt");  
                 Properties pro = new Properties();  
                 pro.load(in);  
                 Enumeration enu = pro.propertyNames();
                while(enu.hasMoreElements()){  
                    patternBuf.append((String)enu.nextElement()+"|");  
                 }  
               String[] strarr = {"你好","死吧"};
               for(int i=0; i<strarr.length;i++){
                patternBuf.append(strarr[i]+"|");
               }
               //去掉最后一个'|'
                patternBuf.deleteCharAt(patternBuf.length()-1);
                 //unix换成UTF-8   win下换成gb2312
                //匹配文件夹下的txt文件的时候 用这个
//                 pattern = Pattern.compile(new String(patternBuf.toString().getBytes("ISO-8859-1"), "gbk"),Pattern.CASE_INSENSITIVE); //编译一个正则表达式，同时生成Pattern
                pattern = Pattern.compile(patternBuf.toString(),Pattern.CASE_INSENSITIVE);
             }catch(Exception ioEx){  
                 ioEx.printStackTrace();  
            }  
         }  
         public static String doFilter(String str){  
            try {  
                Matcher m = pattern.matcher(str); //匹配到得用去掉  
                str = m.replaceAll("****");  
            }catch (Exception e){  
                e.printStackTrace();  
             }  
            return str;  
       }
    public static String FileReaderAll(String FileName, String charset)throws IOException {
    BufferedReader reader = new BufferedReader(new InputStreamReader(new FileInputStream(FileName), charset));
    String line = new String();
    String temp = new String();
    while ((line = reader.readLine()) != null) {
     temp += line;
    }
    reader.close();
    return temp;
   }
    public static void main(String[] args) throws IOException {
     initPattern(); //初始化pattern
     String temp = null;
     //文件夹下的所有txt文件
//     File fileDir = new File("e://test");
//      File[] textFiles = fileDir.listFiles();
//     for (int i=0; i<textFiles.length; i++){
//       if(textFiles[i].isFile()&&textFiles[i].getName().endsWith(".txt")){
//         temp = FileReaderAll(textFiles[i].getCanonicalPath(),"gbk");
//       }
//      }
     //
     temp = "生存必须要有几个经济实力雄厚死吧的你好大藏家做支撑，而不是靠零";
     String newcoment = KeyWordFilter.doFilter(temp);
     System.out.println(newcoment);
 }
 

}