flask secure_filename无法获取中文

参考博客

因为该方法采用ascii与正则匹配字母和数字，所以无法匹配中文等其他字符

所以需要修改源码。找到Lib\site-packages\werkzeug\utils的secure_filename方法

初始代码：

_filename_ascii_strip_re = re.compile(r"[^A-Za-z0-9_.-]")#原始正则

if isinstance(filename, text_type):
        from unicodedata import normalize

        filename = normalize("NFKD", filename).encode("ascii", "ignore")
        if not PY2:
            filename = filename.decode("ascii")
    for sep in os.path.sep, os.path.altsep:
        if sep:
            filename = filename.replace(sep, " ")
    filename = str(_filename_ascii_strip_re.sub("", "_".join(filename.split()))).strip(
        "._"
    )

 

 

改后的代码：

if isinstance(filename, text_type):
        from unicodedata import normalize

        filename = normalize("NFKD", filename).encode("utf-8", "ignore")
        if not PY2:
            filename = filename.decode("utf-8")
    for sep in os.path.sep, os.path.altsep:
        if sep:
            filename = filename.replace(sep, " ")
    _filename_ascii_add_strip_re = re.compile(r'[^A-Za-z0-9_\u4E00-\u9FBF.-]')#新的正则
    filename = str(_filename_ascii_add_strip_re.sub("", "_".join(filename.split()))).strip(
        "._"
    )