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在Django中使用多语言

配置中间件

MIDDLEWARE = [......'django.contrib.sessions.middleware.SessionMiddleware','django.middleware.locale.LocaleMiddleware',  # 此行重点'django.middleware.common.CommonMiddleware',......
]

配置翻译文件目录

• 根目录下创建目录locale

# 国际化翻译文件目录
LOCALE_PATHS = [os.path.join(BASE_DIR, 'locale'),  # 翻译文件所在目录，请手动创建目录
]

创建语言文件

 python manage.py makemessages -l zh_Hanspython manage.py makemessages -l en

如果上述报错：Can’t find msguniq. Make sure you have GNU gettext tools 0.15 or newer installed

则需要安装 gettext，访问https://mlocati.github.io/articles/gettext-iconv-windows.html 下载安装包，一路next即可

在需要翻译的地方使用_函数

# 导入
from django.utils.translation import gettext_lazy as __("你好")  # 纯字符串
_('Today is %(month)s %(day)s.') % {'month': m, 'day': d}  # 携带变量的字符串

把函数标记的字符串，自动加入到翻译文件中

 python manage.py makemessages

文件内容如下

# SOME DESCRIPTIVE TITLE.
# Copyright (C) YEAR THE PACKAGE'S COPYRIGHT HOLDER
# This file is distributed under the same license as the PACKAGE package.
# FIRST AUTHOR <EMAIL@ADDRESS>, YEAR.
#
#, fuzzy
msgid ""
msgstr ""
"Project-Id-Version: PACKAGE VERSION\n"
"Report-Msgid-Bugs-To: \n"
"POT-Creation-Date: 2023-12-18 10:51+0800\n"
"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
"Language-Team: LANGUAGE <LL@li.org>\n"
"Language: \n"
"MIME-Version: 1.0\n"
"Content-Type: text/plain; charset=UTF-8\n"
"Content-Transfer-Encoding: 8bit\n"
"Plural-Forms: nplurals=1; plural=0;\n"#: .\apps\pvmi_defects\views.py:91
msgid "你好"  # 标记的字符串
msgstr "hello"    # 对应语言需要显示的字符串msgid "Today is %(month)s %(day)s."  # %(params_name)s 为申明变量
msgstr "今天是%(month)s月%(day)s日"

翻译完后，需要编译翻译文件

python manage.py compilemessages

如果需要动态切换语言，可以使用activate函数

from django.utils.translation import activate

示例

from django.utils.translation import activate, get_language_info
from django.utils.translation import gettext_lazy as _
activate("en")
print(_("你好"))  # helloactivate("zh-Hans")
print(_("你好"))  # 你好m = 1
d = 2
print(_('Today is %(month)s %(day)s.') % {'month': m, 'day': d})  # 今天是1月2日