# -*- coding:utf-8 -*-from flask import Flask, url_forapp1 = Flask(__name__, static_folder=‘mystatic‘, static_url_path=‘/myurl‘, template_folder=‘mytemplate‘)app2 = Flask(__name__)app3 = Flask(__name__, static_url_path=‘‘)@app1.route(‘/‘)def hello_world(): ???return ‘Hello World!‘@app1.route("/css")def static_css(): ???return url_for(‘static‘, filename=‘style.css‘)@app1.route("/js")def static_js(): ???return url_for(‘static‘, filename=‘login.js‘)# @app.route("/ss")# def static():# ????return "hello ss!"# AssertionError: View function mapping is overwriting an existing endpoint function: static# 不允许重复定义内部约束方法staticif __name__ == ‘__main__‘: ???print("1--------------------") ???print(app1.__dict__) ???print app1.view_functions[‘static‘].__dict__ ???print("2--------------------") ???print app2.__dict__ ???print("3--------------------") ???print app3.__dict__ ???# app1.run() ???# app2.run(port=5001) ???# app3.run(port=5002)目录结构
flask_simply_dome ???-mystatic ???????--login.js ?-->"this is a test login.js" ???-static ???????--login.js ?-->"this is app3 or app2 login.js" ???asimply_app.py# curl "http://127.0.0.1:5000/css"/myurl/style.css# curl "http://127.0.0.1:5000/js"/myurl/login.js# curl "http://127.0.0.1:5000/myurl/login.js""this is a test login.js"# curl "http://127.0.0.1:5001/static/login.js""this is app3 or app2 login.js"# curl "http://127.0.0.1:5002/login.js""this is app3 or app2 login.js"对比各app的属性
1--------------------{ ???‘subdomain_matching‘: False, ???‘error_handler_spec‘: {}, ???‘_before_request_lock‘: < thread.lock object at 0x0000000002619D50 > , ???‘before_request_funcs‘: {}, ???‘teardown_appcontext_funcs‘: [], ???‘shell_context_processors‘: [], ???‘after_request_funcs‘: {}, ???‘cli‘: < flask.cli.AppGroup object at 0x0000000002EF0278 > , ???‘_blueprint_order‘: [], ???‘before_first_request_funcs‘: [], ???‘view_functions‘: { ???????‘static_css‘: < function static_css at 0x0000000002EF87B8 > , ???????‘static_js‘: < function static_js at 0x0000000002EF8828 > , ???????‘hello_world‘: < function hello_world at 0x0000000002EF8748 > , ???????‘static‘: < bound method Flask.send_static_file of < Flask ‘asimply_app‘ >> ???}, ???‘instance_path‘: ‘D:\\myself\\flask_simply_dome\\instance‘, ???‘teardown_request_funcs‘: {}, ???‘url_value_preprocessors‘: {}, ???‘config‘: < Config { ???????‘JSON_AS_ASCII‘: True, ???????‘USE_X_SENDFILE‘: False, ???????‘SESSION_COOKIE_SECURE‘: False, ???????‘SESSION_COOKIE_PATH‘: None, ???????‘SESSION_COOKIE_DOMAIN‘: None, ???????‘SESSION_COOKIE_NAME‘: ‘session‘, ???????‘MAX_COOKIE_SIZE‘: 4093, ???????‘SESSION_COOKIE_SAMESITE‘: None, ???????‘PROPAGATE_EXCEPTIONS‘: None, ???????‘ENV‘: ‘production‘, ???????‘DEBUG‘: False, ???????‘SECRET_KEY‘: None, ???????‘EXPLAIN_TEMPLATE_LOADING‘: False, ???????‘MAX_CONTENT_LENGTH‘: None, ???????‘APPLICATION_ROOT‘: ‘/‘, ???????‘SERVER_NAME‘: None, ???????‘PREFERRED_URL_SCHEME‘: ‘http‘, ???????‘JSONIFY_PRETTYPRINT_REGULAR‘: False, ???????‘TESTING‘: False, ???????‘PERMANENT_SESSION_LIFETIME‘: datetime.timedelta(31), ???????‘TEMPLATES_AUTO_RELOAD‘: None, ???????‘TRAP_BAD_REQUEST_ERRORS‘: None, ???????‘JSON_SORT_KEYS‘: True, ???????‘JSONIFY_MIMETYPE‘: ‘application/json‘, ???????‘SESSION_COOKIE_HTTPONLY‘: True, ???????‘SEND_FILE_MAX_AGE_DEFAULT‘: datetime.timedelta(0, 43200), ???????‘PRESERVE_CONTEXT_ON_EXCEPTION‘: None, ???????‘SESSION_REFRESH_EACH_REQUEST‘: True, ???????‘TRAP_HTTP_EXCEPTIONS‘: False ???} > , ???‘_static_url_path‘: ‘/myurl‘, ???‘template_context_processors‘: { ???????None: [ < function _default_template_ctx_processor at 0x0000000002ED9BA8 > ] ???}, ???‘template_folder‘: ‘mytemplate‘, ???‘blueprints‘: {}, ???‘url_map‘: Map([ < Rule ‘/css‘ (HEAD, OPTIONS, GET) - > static_css > , < ???????Rule ‘/js‘ (HEAD, OPTIONS, GET) - > static_js > , < ???????Rule ‘/‘ (HEAD, OPTIONS, GET) - > hello_world > , < ???????Rule ‘/myurl/<filename>‘ (HEAD, OPTIONS, GET) - > static > ???]), ???‘name‘: ‘asimply_app‘, ???‘_got_first_request‘: False, ???‘import_name‘: ‘__main__‘, ???‘root_path‘: ‘D:\\myself\\flask_simply_dome‘, ???‘_static_folder‘: ‘mystatic‘, ???‘extensions‘: {}, ???‘url_default_functions‘: {}, ???‘url_build_error_handlers‘: []}{}1--------------------{ ???‘subdomain_matching‘: False, ???‘error_handler_spec‘: {}, ???‘_before_request_lock‘: < thread.lock object at 0x0000000002619D70 > , ???‘before_request_funcs‘: {}, ???‘teardown_appcontext_funcs‘: [], ???‘shell_context_processors‘: [], ???‘after_request_funcs‘: {}, ???‘cli‘: < flask.cli.AppGroup object at 0x0000000002EF03C8 > , ???‘_blueprint_order‘: [], ???‘before_first_request_funcs‘: [], ???‘view_functions‘: { ???????‘static‘: < bound method Flask.send_static_file of < Flask ‘asimply_app‘ >> ???}, ???‘instance_path‘: ‘D:\\myself\\flask_simply_dome\\instance‘, ???‘teardown_request_funcs‘: {}, ???‘url_value_preprocessors‘: {}, ???‘config‘:同上, ???‘_static_url_path‘: None, ???‘template_context_processors‘: { ???????None: [ < function _default_template_ctx_processor at 0x0000000002ED9BA8 > ] ???}, ???‘template_folder‘: ‘templates‘, ???‘blueprints‘: {}, ???‘url_map‘: Map([ < Rule ‘/static/<filename>‘ (HEAD, OPTIONS, GET) - > static > ]), ???‘name‘: ‘asimply_app‘, ???‘_got_first_request‘: False, ???‘import_name‘: ‘__main__‘, ???‘root_path‘: ‘D:\\myself\\flask_simply_dome‘, ???‘_static_folder‘: ‘static‘, ???‘extensions‘: {}, ???‘url_default_functions‘: {}, ???‘url_build_error_handlers‘: []}2--------------------{ ???‘subdomain_matching‘: False, ???‘error_handler_spec‘: {}, ???‘_before_request_lock‘: < thread.lock object at 0x00000000026A3DB0 > , ???‘before_request_funcs‘: {}, ???‘teardown_appcontext_funcs‘: [], ???‘shell_context_processors‘: [], ???‘after_request_funcs‘: {}, ???‘cli‘: < flask.cli.AppGroup object at 0x0000000002FFB5F8 > , ???‘_blueprint_order‘: [], ???‘before_first_request_funcs‘: [], ???‘view_functions‘: { ???????‘static‘: < bound method Flask.send_static_file of < Flask ‘asimply_app‘ >> ???}, ???‘instance_path‘: ‘D:\\myself\\flask_simply_dome\\instance‘, ???‘teardown_request_funcs‘: {}, ???‘url_value_preprocessors‘: {}, ???‘config‘: 同上, ???‘_static_url_path‘: ‘‘, ???‘template_context_processors‘: { ???????None: [ < function _default_template_ctx_processor at 0x0000000002FDEBA8 > ] ???}, ???‘template_folder‘: ‘templates‘, ???‘blueprints‘: {}, ???‘url_map‘: Map([ < Rule ‘/<filename>‘ (HEAD, OPTIONS, GET) - > static > ]), ???‘name‘: ‘asimply_app‘, ???‘_got_first_request‘: False, ???‘import_name‘: ‘__main__‘, ???‘root_path‘: ‘D:\\myself\\flask_simply_dome‘, ???‘_static_folder‘: ‘static‘, ???‘extensions‘: {}, ???‘url_default_functions‘: {}, ???‘url_build_error_handlers‘: []}3----------------------"""结论
static_url_path主要用于改变url的path的，静态文件放在static下面，所以正常情况url是static/filename ，但是可以通过static_url_path来改变这个urlstatic_folder主要是用来改变url的目录的，默认是static，可以通过这个变量来改变静态文件目录。要是项目是前后端分离的话，那这里的配置也就没影响了。flask中static_folder与static_url_path的区别与联系
原文地址：https://www.cnblogs.com/lgjbky/p/9443018.html