從源代碼里提取中文字符串的java類

工作中需要優化代碼里的中文警示語和異常信息，實在比較多，所以就寫了個程序專門從代碼里提取中文字符串。

import java.io.;
import java.util.;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

/**

搜索字符串并輸出到控制臺
*/
public class ExtractStr {
 public static String getHelpString(String[] args){

 String result = String.format("%s [path]", new Object[]{"a"});
 return result;

}
private void getFiles(String rootPath, final String fileExt, List<File> fileList){

 File f =new File(rootPath);
 File[] list=f.listFiles(new FileFilter() {
     @Override
     public boolean accept(File f) {
         boolean ret = f.isDirectory() || (f.isFile() && f.getName().endsWith(fileExt));
         return ret;
     }
 });
 for(File fn : list){
     if (fn.isDirectory()){
         this.getFiles(fn.getAbsolutePath(), fileExt, fileList);
     }else{
         fileList.add(fn);
     }
 }

}
public List<File> run(String rootPath, String fileExt){

 List<File> result = new LinkedList<File>();
 this.getFiles(rootPath, fileExt, result);
 return result;

}
public List<String> parserSourceFile(List<String> patternList, File file, int miniCharCount) throws Exception {

 List<String> result = new LinkedList<String>();
 BufferedReader r = new BufferedReader(new FileReader(file));
 char[] buffer = new char[(int)file.length()];
 r.read(buffer, 0, (int)file.length());
 String text=new String(buffer, 0, buffer.length);

 for(String patternStr : patternList){
     //Pattern pattern = Pattern.compile("\"(.*?)\"");
     Pattern pattern = Pattern.compile(patternStr);
     Matcher matchers= pattern.matcher(text);
     while(matchers.find()){
         String t=matchers.group();
         if (t.length()>=miniCharCount)
             result.add(t);
     }
 }
 return result;

}
public static void main(String []args){

 if (args.length==0){
     StringBuilder sb = new StringBuilder()
             .append("未傳入需要搜索的有效的源代碼路徑")
             .append("\n")
             .append(ExtractStr.getHelpString(args));
     System.out.println(sb.toString());
     System.exit(1);
 }
 List<String> searchFolders=new ArrayList<String>(100);
 for(int i=0; i<=args.length-1;i++){
     File f=new File(args[i]);
     if (!f.isDirectory() || !f.exists())
         continue;
     searchFolders.add(f.getAbsolutePath());
 }

 List<String> patternList = new LinkedList<String>();
 patternList.add("'([\\u4E00-\\u9FA5]+)'");
 patternList.add("\"([\\u4E00-\\u9FA5]+)\"");

 ExtractStr es = new ExtractStr();
 List<File> fileList = new ArrayList<File>(1000);
 for(String sarchFolder : searchFolders){
     List<File> t=es.run(sarchFolder, ".php");
     fileList.addAll(t);
 }

 Set<String> outList=new HashSet<String>();
 for(File f : fileList){
     try{
         List<String> items=es.parserSourceFile(patternList, f, 12);
         outList.addAll(items);
     }catch(Exception e){
         e.printStackTrace();
     }
 }
 for(String str : outList){
     System.out.println(str);
 }

}
}</pre> 


 對于拼接字符串的中文輸出支持的不算好，而且也對中文的長度有限制（最少12個字符）