python写的常用脚本，用到的时候快速修改

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参考

Python实现递归遍历文件夹并删除文件

Python实现递归遍历文件夹并删除文件 别人博客

GBK编码的java文件批量转换为utf-8

Eclipse workspace 工程java文件编码问题

解决问题：eclipse workspaces中的项目有的是GBK编码，如果导入到workspaces的默认编码为utf-8编码的话中文会出现乱码。
下面python3的方式递归变量当前目录以及子目录，把目录中的*.java文件由gbk转换为utf-8，注意只能用一次，一次之后当前目录以及子目录下的文件编码均会由gbk转为utf-8。

import codecs
def ReadFile(filePath,encoding="gbk"):
with codecs.open(filePath,"r",encoding) as f:
return f.read()

def WriteFile(filePath,u,encoding="utf-8"):
with codecs.open(filePath,"w",encoding) as f:
f.write(u)

def UTF8_2_GBK(src,dst):
content = ReadFile(src,encoding="gbk")
WriteFile(dst,content,encoding="utf-8")

import os
import os.path
# 递归遍历rootdir目录，把目录中的*.java编码由gbk转换为utf-8
def ReadDirectoryFile(rootdir):
for parent,dirnames,filenames in os.walk(rootdir):
#case 1:
for dirname in dirnames:
print("parent folder is:" + parent)
print("dirname is:" + dirname)
#case 2
for filename in filenames:
print("parent folder is:" + parent)
print("filename with full path:"+ os.path.join(parent,filename))
if filename.endswith(".java"):
UTF8_2_GBK(os.path.join(parent,filename),os.path.join(parent,filename))
print("Java文件")
if __name__=="__main__":
ReadDirectoryFile(".")

eclipse 工程jsp文件编码以及头

<%@page contentType="text/html;charset=gbk"%>

批量转换为

<%@page contentType="text/html;charset=UTF-8"%>

大部分和上面编码类似，只是多了一个字符串的替换，重写了ReadFile方法，按行读取，然后替换字符"charset=gbk"-->"charset=UTF-8"

import codecs
def ReadFile(filePath,encoding="gbk"):
try:
strfile=""
f = codecs.open(filePath,"r",encoding)
line = f.readline()
while(line):
line=line.replace("charset=gbk","charset=UTF-8")#
line=line.replace("charset=GBK","charset=UTF-8")#
line=line.replace("charset=gb2312","charset=UTF-8")#
strfile+=line
line=f.readline()
f.close()
return strfile
except Exception:
return None

def WriteFile(filePath,u,encoding="utf-8"):
with codecs.open(filePath,"w",encoding) as f:
f.write(u)

def UTF8_2_GBK(src,dst):
content = ReadFile(src,encoding="gbk")
#print(content)
WriteFile(dst,content,encoding="utf-8")

import os
import os.path
# 递归遍历rootdir目录，把目录中的*.java编码由gbk转换为utf-8
def ReadDirectoryFile(rootdir):
for parent,dirnames,filenames in os.walk(rootdir):
#case 1:
for dirname in dirnames:
print("parent folder is:" + parent)
print("dirname is:" + dirname)
#case 2
for filename in filenames:
print("parent folder is:" + parent)
print("filename with full path:"+ os.path.join(parent,filename))
if filename.endswith(".jsp"):
UTF8_2_GBK(os.path.join(parent,filename),os.path.join(parent,filename))
print("jsp文件")
if __name__=="__main__":
ReadDirectoryFile(".")