本文实例讲述了python实现JAVA源代码从ANSI到UTF-8的批量转换方法。分享给大家供大家参考。具体如下：

喜欢用eclipse的大神们，可能一不小心代码就变成ANSI码了，需要转换成utf-8嘛，一个文件一个文件的在Notepad2或者notepad++里面转换么？不，这里有批量转换的程序，python实现，需要的拿去用吧。

ansi2utf8.py：

#-*- coding: utf-8 -*-
import codecs
import os
import shutil
import re
import chardet
def convert_encoding(filename, target_encoding):
 # Backup the origin file.
 shutil.copyfile(filename, filename + \'.bak\')
 # convert file from the source encoding to target encoding
 content = codecs.open(filename, \'r\').read()
 source_encoding = chardet.detect(content)[\'encoding\']
 print source_encoding, filename
 content = content.decode(source_encoding) #.encode(source_encoding)
 codecs.open(filename, \'w\', encoding=target_encoding).write(content)
def main():
 for root, dirs, files in os.walk(os.getcwd()):
  for f in files:
   if f.lower().endswith(\'.java\'):
    filename = os.path.join(root, f)
    try:
     convert_encoding(filename, \'utf-8\')
    except Exception, e:
     print filename
def process_bak_files(action=\'restore\'):
 for root, dirs, files in os.walk(os.getcwd()):
  for f in files:
   if f.lower().endswith(\'.java.bak\'):
    source = os.path.join(root, f)
    target = os.path.join(root, re.sub(\'\\.java\\.bak$\', \'.java\', f, flags=re.IGNORECASE))
    try:
     if action == \'restore\':
      shutil.move(source, target)
     elif action == \'clear\':
      os.remove(source)
    except Exception, e:
     print source
if __name__ == \'__main__\':
 # process_bak_files(action=\'clear\')
 main()

把程序拷贝到java源文件所在目录下运行就好了。

希望本文所述对大家的Python程序设计有所帮助。