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【Java】提取java文件中的中文，可用作国际化

作者:cmy00cmy / 发布于2013/11/28/ 461

提取代码文件中的中文，方便国际化。用正则表达式匹配，已排除：// /* */ * 后的注释内容

package com.cmy.seekChinese;

import java.io.BufferedReader;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.ArrayList;
import java.util.Scanner;
import java.util.concurrent.Callable;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.concurrent.Future;
import java.util.regex.Matcher;
import java.util.regex.Pattern;



public class FileSearch {
 public static void main(String args[]) throws Exception{
  Scanner in = new Scanner(System.in);
  System.out.println("base directory");
  String directory = in.nextLine();
  String keywordString = "^[^//*]*[\\u4e00-\\u9fa5]+";
  
  ExecutorService pool = Executors.newCachedThreadPool();//线程池
  MatchCounter dataArrayList = new MatchCounter(new File(directory), keywordString, pool);
  Future<ArrayList<String>> resultFuture = pool.submit(dataArrayList);//获取结果
  
  //输出结果
  int i = 0;
  FileOutputStream fos = new FileOutputStream("d:\\test.txt", true);
  for (String string : resultFuture.get()) {
   i++;
   fos.write(string.getBytes());
   System.out.print(string);
   if (i%4 == 0) {
    System.out.println();
    fos.write("\r\n".getBytes());
   }
  }
  fos.close();
  pool.shutdown();
  System.exit(0);
 }
}

class MatchCounter implements Callable<ArrayList<String>>{
 public MatchCounter(File directoryFile, String keyword, ExecutorService pool){
  this.directoryFile = directoryFile;
  this.keyword = keyword;
  this.pool = pool;
 }
 @Override
 public ArrayList<String> call() throws Exception {
  // TODO Auto-generated method stub
  ArrayList<String> dataArrayList = new ArrayList<String>();
  ArrayList<String> temp = new ArrayList<String>();
  try{
   File[] files = directoryFile.listFiles();
   ArrayList<Future<ArrayList<String>>> results = new ArrayList<Future<ArrayList<String>>>();
   
   for(File file : files){
    if(file.isDirectory()){//查找所有文件，加入数组
     MatchCounter counter = new MatchCounter(file, keyword, pool);
     Future<ArrayList<String>> resultFuture = pool.submit(counter);
     results.add(resultFuture);
    }
    else{//查找文件内容
     System.out.println(file.getName());
     if((temp = search(file)) != null)
      dataArrayList.addAll(temp);
    }
   }
   //统计结果
   for(Future<ArrayList<String>> resultFuture : results){
    try{
     dataArrayList.addAll(resultFuture.get());
    }
    catch (ExecutionException e) {
     // TODO: handle exception
     e.printStackTrace();
    }
   }
  }
  catch (Exception e) {
   // TODO: handle exception
   e.printStackTrace();
  }
  return dataArrayList;
 }
 
 public ArrayList<String> search(File file) throws InterruptedException{
  try {
   ArrayList<String> data = new ArrayList<String>();
   BufferedReader inScanner = new BufferedReader(new InputStreamReader(new FileInputStream(file),"UTF-8"));
   boolean found = false;
   String string;
   while ((string = inScanner.readLine()) != null) {
    //正则表达式匹配，选出行
    Pattern pattern = Pattern.compile(keyword);
    Matcher matcher = pattern.matcher(string);
    if(matcher.find()){
     found = true;
     Pattern con = Pattern.compile("[\u4e00-\u9fa5].*[\u4e00-\u9fa5]+");
     //再匹配一次，挑出内容
     Matcher matcher2 = con.matcher(string);
     System.out.println(string);
     if(matcher2.find())
     {
      String filePath = file.getPath();
      String[] folder = filePath.split("\\\\");
      //System.out.println(matcher2.group());
      //System.out.println(matcher2.groupCount());
      data.add(" |");//大类
      data.add(folder[8] + "|");//文件夹
      data.add(" |");//类型
      data.add(matcher2.group() + "|");//中文内容
     }
    }
   }
   inScanner.close();
   return data;
  } catch (IOException e) {
   // TODO: handle exception
   e.printStackTrace();
   return null;
  }
 }
 
 private File directoryFile;
 private String keyword;
 private ExecutorService pool;
}

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