Java提取代码中的日文

简单写的代码, 方便提取日文文字.

package com.test;

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileReader;
import java.io.FileWriter;
import java.util.ArrayList;
import java.util.List;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

public class GetJPText {


    static String filePath = "F:\\proj\\src";
    static File resultFile = new File("F:\\result-js.txt");

    /**
     * @param args
     */
    public static void main(String[] args) throws Exception {
        GetJPText.exec();
    }

    // Check exist JP text

    public static boolean checkJPTextExist(String s) {
        if (null == s || s.length() < 1) {
            return false;
        }
        for (int i = 0; i < s.length(); i++) {
            if (s.charAt(i) > 256 && (int) s.charAt(i) != 65279) {
                System.out.println((int) s.charAt(i));
                return true;
            }
        }
        return false;
    }

    // Comment line check

    public static boolean checkCommentLine(String lineStr) {

        Pattern pattern = Pattern.compile("^(//|/\\*|\\*|trace).+");
        Matcher m = pattern.matcher(lineStr);
        if (m.matches()) {
            return true;
        }

        return false;
    }

    public static void write2File(int line, String filename, String lineStr) throws Exception {
        BufferedWriter out = new BufferedWriter(new FileWriter(resultFile, true));
        // for()

        out.write(line + "\t" + filename + "\t" + lineStr);
        out.newLine();
        out.close();
        out = null;
    }

    // Read file

    public static void readFileLine(File file) {
        BufferedReader reader = null;
        try {
            reader = new BufferedReader(new FileReader(file));
            String tmpStr = null;
            int line = 1;

            while ((tmpStr = reader.readLine()) != null) {
                tmpStr = tmpStr.replaceAll("\\t", " ");
                tmpStr = tmpStr.trim();
                if (!checkCommentLine(tmpStr)) {
                    if (checkJPTextExist(tmpStr)) {
                        write2File(line, file.getPath(), tmpStr);
                    }
                }
                line++;
            }

            reader.close();
        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            if (reader != null) {
                try {
                    reader.close();
                } catch (Exception e) {
                    e.printStackTrace();
                }
            }
        }
    }

    //

    public static void exec() throws Exception {
        List<File> listf = new ArrayList<File>();
        try {
            GetJPText.getAsFileList(listf, new File(filePath));
        } catch (Exception e) {
            e.printStackTrace();
        }
        System.out.println("List size: " + listf.size());

        for (File file : listf) {
            readFileLine(file);
        }

    }

    public static List<File> getAsFileList(List<File> list, File f) throws Exception {
        if (f.isDirectory()) {
            String[] fileListTmp = f.list();
            for (String str : fileListTmp) {
                Pattern pattern = Pattern.compile(".+\\.js$");
                Matcher m = pattern.matcher(str);
                if (m.matches()) {
                    list.add(new File(f.getPath() + "\\" + str));
                } else {
                    File tmp = new File(f.getPath() + "\\" + str);
                    if (tmp.isDirectory() && !str.equals(".svn")) {
                        getAsFileList(list, tmp);
                    }
                }
            }
        } else {
            if (f.getName().matches(".js")) {
                list.add(f);
            }
        }
        // System.out.println("List size: " + list.size());

        return list;
    }
}