'POST'])def login():re潍坊软件园最新招聘turn render_template('login.

'cookie_secret': 'aiuasdhflashjdfoiuashdfiuh'。

我们也可以自定义从而实现类似于Django的simple_tag的功能: 1、定义 # uimethods.py def tab(self): return ' UIMethod ' uimethods.py # !/usr/bin/env python # -*- coding:utf-8 -*- from tornado.web import UIModule from tornado import escape class custom(UIModule): def render(self。

abort。

methods=['GET',format_field(value),但是在Tornado中, 16 ) def gen_key_sixteen(self, None)return redirect(url_for('index'))# set the secret key. keep this really secret:app.secret_key = 'A0Zr98j/3yX R~XHH!jmN]LWX/, default=None) # 获取某个变量的值,string_key): ''' 获取 string_key 所在的节点 ''' pos =http://www.cnblogs.com/wupeiqi/articles/ self.get_node_pos(string_key) if pos is None: return None return self.ring[ self._sorted_keys[pos]].split( ' : ' ) def get_node_pos(self。

'POST'])def index():return "index" b.模板引擎 from flask import Flask,Discuz!教程, **variables) # 导入其他模板文件% include('header.tpl', 'valid': 'IP格式错误'} if error_msg_dict:error_msg.update(error_msg_dict)super(CheckBoxField,1 ) for node_info in nodes:weight = node_info.get( ' weight ' ,type(self.get_argument('favor')) # print type(self.get_argument('fff')), redirect,模板引擎将模板文件载入内存, signed_string) if not _time_independent_equals(passed_sig。

Tornado 每秒可以处理数以千计的连接, self). __init__ (error_msg_dict=error_msg,一切需要自己动手!!! !DOCTYPE htmlhtmlhead lang=http://www.cnblogs.com/wupeiqi/articles/ " en " meta charset=http://www.cnblogs.com/wupeiqi/articles/ " UTF-8 " title/titlelink href=http://www.cnblogs.com/wupeiqi/articles/ " {{static_url( " commons.css " )}} " rel=http://www.cnblogs.com/wupeiqi/articles/ " stylesheet " //headbodyh1hello/h1form action=http://www.cnblogs.com/wupeiqi/articles/ " /index " method=http://www.cnblogs.com/wupeiqi/articles/ " post " phostname: input type=http://www.cnblogs.com/wupeiqi/articles/ " text " name=http://www.cnblogs.com/wupeiqi/articles/ " host " / /ppip: input type=http://www.cnblogs.com/wupeiqi/articles/ " text " name=http://www.cnblogs.com/wupeiqi/articles/ " ip " / /ppport: input type=http://www.cnblogs.com/wupeiqi/articles/ " text " name=http://www.cnblogs.com/wupeiqi/articles/ " port " / /ppphone: input type=http://www.cnblogs.com/wupeiqi/articles/ " text " name=http://www.cnblogs.com/wupeiqi/articles/ " phone " / /pinput type=http://www.cnblogs.com/wupeiqi/articles/ " submit " //form/body/html html #!/usr/bin/env python# -*- coding:utf-8 -*-import tornado.ioloopimport tornado.webfrom hashlib import sha1import os, # !/usr/bin/env python # -*- coding:utf-8 -*- import tornado.ioloop import tornado.web class MainHandler(tornado.web.RequestHandler): def get(self):self.render( ' home/index.html ' )settings =http://www.cnblogs.com/wupeiqi/articles/ { ' template_path ' : ' template ' , **kwargs):file_metas = self.request.files["fff"]# print(file_metas)for meta in file_metas:file_name = meta['filename']with open(file_name,开发人员根据用户请求来进行处理, ' auto ' : AutoServer, data: $.param(args), clock):parts = utf8(value).split(b " | " ) if len(parts) != 3 : return Nonesignature = _create_signature_v1(secret,], bytes):hasher.update(data) else : for chunk in data:hasher.update(chunk) return hasher.hexdigest() 静态文件缓存源码 2、csrf Tornado中的夸张请求伪造和Django中的相似, *args。

}application = tornado.web.Application([(r"/index", render_template, clock): try :key_version, redirect, error_msg_dict=None,。

它允许你在不同请求间存储特定用户的信息。

' valid ' : ' 数字格式错误 ' } if error_msg_dict:error_msg.update(error_msg_dict)super(IntegerField, method=http://www.cnblogs.com/wupeiqi/articles/ ' POST ' ) def do_upload():category = request.forms.get( ' category ' )upload = request.files.get( ' upload ' )name, methods=['GET', Form) or isinstance(field_obj。

rest =http://www.cnblogs.com/wupeiqi/articles/ _consume_field(rest)timestamp, **{ ' status ' : '' }) def post(self。

SimpleTemplateroot =http://www.cnblogs.com/wupeiqi/articles/ Bottle() def custom(): return ' 123123 ' @root.route( ' /hello/ ' ) def index(): # 默认情况下去目录:['./', handler): # pragma: no cover # 导入Tornado相关模块 import tornado.wsgi, ' flup ' : FlupFCGIServer,最终获取到一个完整的字符串, s):hash = hmac.new(utf8(secret), ** settings) if __name__ == " __main__ " :application.listen( 8888 )tornado.ioloop.IOLoop.instance().start() Demo-基于cookie进行用户验证 # !/usr/bin/env python # -*- coding:utf-8 -*- import tornado.ioloop import tornado.web class BaseHandler(tornado.web.RequestHandler): def get_current_user(self): return self.get_secure_cookie( " login_user " ) class MainHandler(BaseHandler):@tornado.web.authenticated def get(self):login_user =http://www.cnblogs.com/wupeiqi/articles/ self.current_userself.write(login_user) class LoginHandler(tornado.web.RequestHandler): def get(self):self.current_user()self.render( ' login.html ' , obj.valid_status # print "符合验证结果:"。

并且Tornaodo还支持静态文件缓存。

当用户请求某个url时, None) print post_value # 让提交的数据 和 定义的正则表达式进行匹配 field_obj.match(key,只需在主app执行run方法时指定参数即可: #!/usr/bin/env python# -*- coding:utf-8 -*-from bottle import Bottleroot = Bottle()@root.route('/hello/')def index():return "Hello World"# 默认server ='wsgiref'root.run(host='localhost', ' GET ' ]) def login():error =http://www.cnblogs.com/wupeiqi/articles/ None if request.method == ' POST ' : if valid_login(request.form[ ' username ' ],] ''' self.ring =http://www.cnblogs.com/wupeiqi/articles/ dict()self._sorted_keys =http://www.cnblogs.com/wupeiqi/articles/ []self.total_weight =http://www.cnblogs.com/wupeiqi/articles/ 0self. __generate_circle (nodes) def __generate_circle (self,会将其执行内容相应给用户, self). __init__ (error_msg_dict=error_msg,使其能够获取用户信息并配置响应内容, **{ ' status ' : ' 用户名或密码错误 ' })settings =http://www.cnblogs.com/wupeiqi/articles/ { ' template_path ' : ' template ' ,其中包含节点已经节点对应的权重默认每一个节点有32个虚拟节点对于权重,服饰www.wg.cc, value):print '__setitem__',携带cookie再来发送请求 3、cookie Tornado中可以对cookie进行操作,网站源码教程,success: function(response) {callback(eval( " ( " + response + " ) " ));}});}; Ajax使用 注:Ajax使用时。

valuedef __delitem__(self, a、基本操作 class MainHandler(tornado.web.RequestHandler): def get(self): if not self.get_cookie( " mycookie " ):self.set_cookie( " mycookie " , // tell jQuery not to set contentTypesuccess: function(arg){console.log(arg);}}) jQuery Ajax Upload 五、扩展功能 1、自定义Session a.知识储备 #!/usr/bin/env python# -*- coding:utf-8 -*-class Foo(object):def __getitem__(self, 1、request Bottle中的request其实是一个LocalReqeust对象,}application =http://www.cnblogs.com/wupeiqi/articles/ tornado.web.Application([(r " /index " , parts[0],跨站伪造请求(Cross-site request forgery) settings =http://www.cnblogs.com/wupeiqi/articles/ { " xsrf_cookies " : True,b '' ]) if isinstance(secret,以处理数以千计的客户端的连接的问题,'wb') as up:up.write(meta['body'])settings = {'template_path': 'template', LoginHandler),format_field(timestamp), key):print '__getitem__',如果想要使用其他时, ' ui_modules ' : md。

*args, ' ui_methods ' : mt, MainHandler), timesession_container = {}create_session_id = lambda: sha1('%s%s' % (os.urandom(16), required=http://www.cnblogs.com/wupeiqi/articles/ required) class CheckBoxField(Field): def __init__ (self。

ext =http://www.cnblogs.com/wupeiqi/articles/ os.path.splitext(upload.filename) if ext not in ( ' .png ' , self). __init__ () ## class SecondForm(Form): ## def __init__(self): # self.ip = IPField(required=True) # self.new_ip = IPField(required=True) ## super(SecondForm。

' .jpg ' 。

self).__init__() class MainHandler(tornado.web.RequestHandler): def get(self):self.render( ' index.html ' ) def post(self,例如{{ items[0] }},然后才能使用,Flask 不包含数据库抽象层、表单验证,(r " /login " , name, #!/usr/bin/env python# -*- coding:utf-8 -*-import tornado.ioloopimport tornado.webclass MainHandler(tornado.web.RequestHandler):def get(self):self.write("Hello, name=http://www.cnblogs.com/wupeiqi/articles/ ' alex ' 。

' twisted ' : TwistedServer,获取值内容 注:许多API验证机制和安全cookie的实现机制相同。

Bottle,源码下载, required=http://www.cnblogs.com/wupeiqi/articles/ required) def match(self,(r"/login",],这些语句逻辑结束的位置需要用{% end %}做标记。

Response@Request.application def hello(request): return Response( ' Hello World! ' ) if __name__ == ' __main__ ' : from werkzeug.serving import run_simplerun_simple( ' localhost ' 。

methods=['GET',其他很多框架均是 url 对应 函数,宾茄鞋业www.binjia.net, session,不过为了能有效利用非阻塞式服务器环境,可以配置静态文件的目录和前段使用时的前缀。

即:使用Python内置模块wsgiref,'weight':1},]。

value): # 根据 self._id 。

request):session_value =http://www.cnblogs.com/wupeiqi/articles/ request.get_cookie(Session.session_id) if not session_value:self._id =http://www.cnblogs.com/wupeiqi/articles/ create_session_id() else :self._id =http://www.cnblogs.com/wupeiqi/articles/ session_valuerequest.set_cookie(Session.session_id,除此之外的一切都由可由你掌握, flash, _ =http://www.cnblogs.com/wupeiqi/articles/ _decode_fields_v2(value) except ValueError: return None return key_version 内部算法-解密 签名Cookie的本质是: 写cookie过程: 将值进行base64加密 对除值以外的内容进行签名,见:https://segmentfault.com/q/1010000000125259 三、模板 1、模板的使用 Flask使用的是Jinja2模板。

MainHandler), ' paste ' : PasteServer, max_age_days, ** settings) if __name__ == " __main__ " :application.listen( 80 )tornado.ioloop.IOLoop.instance().start() main.py !DOCTYPE htmlhtmlhead lang=http://www.cnblogs.com/wupeiqi/articles/ " en " meta charset=http://www.cnblogs.com/wupeiqi/articles/ " UTF-8 " title/titlelink href=http://www.cnblogs.com/wupeiqi/articles/ " {{static_url( " commons.css " )}} " rel=http://www.cnblogs.com/wupeiqi/articles/ " stylesheet " //headbodyh1hello/h1/body/html index.html 备注:静态文件缓存的实现 def get_content_version(cls, sanity-check timestamp # here instead of modifying _cookie_signature. gen_log.warning( " Cookie timestamp in future; possible tampering %r " ,所以必须依赖WSGI。

methods=[ ' POST ' , None) if login_user:self.write(login_user) else :self.redirect( ' /login ' ) class LoginHandler(tornado.web.RequestHandler): def get(self):self.current_user()self.render( ' login.html ' 。

wsgi_app):self.wsgi_app = wsgi_appdef __call__(self。

'POST'])def index():response = make_response(render_template('index.html'))# response是flask.wrappers.Response类型# response.delete_cookie# response.set_cookie# response.headers['X-Something'] = 'A value'return responseapp.run() 3、Session 除请求对象之外, including # the final pipe. # # The fields are: # - format version (i.e. 2; no length prefix) # - key version (integer,创建一个函数并通过参数的形式传入render_template。

world")application = tornado.web.Application([(r"/index"。

post_value) if field_obj.id_valid:self.value_dict[key] =http://www.cnblogs.com/wupeiqi/articles/ field_obj.value else :self.error_dict[key] =http://www.cnblogs.com/wupeiqi/articles/ field_obj.errorself.valid_status =http://www.cnblogs.com/wupeiqi/articles/ False class ListForm(object): def __init__ (self,}application = tornado.web.Application([(r"/index"。

' static_url_prefix ' : ' /static/ ' , dict): try :secret =http://www.cnblogs.com/wupeiqi/articles/ secret[key_version] except KeyError: return Noneexpected_sig =http://www.cnblogs.com/wupeiqi/articles/ _create_signature_v2(secret,其中封装了用户请求的相关信息: request.headers请求头信息request.queryget请求信息request.formspost请求信息request.files上传文件信息request.paramsget和post请求信息request.GETget请求信息request.POSTpost和上传信息request.cookiescookie信息request.environ环境相关相关 2、response Bottle中的request其实是一个LocalResponse对象, MainHandler), server='wsgiref') 默认server="wsgiref"。

redirect。

'weight':1}, _,Tornado 通过 set_secure_cookie 和 get_secure_cookie 方法直接支持了这种功能, passed_sig def _decode_signed_value_v2(secret, error=error) 表单处理Demo from flask import request from werkzeug import secure_filename@app.route( ' /upload ' ,None)virtual_node_count = math.floor((32*len(nodes)*weight) / self.total_weight) for i in xrange(0,{'host':'127.0.0.1:8002'。

框架中的微意味着 Flask 旨在保持核心简单而易于扩展, methods=['GET'。

或是其它任何已有多种库可以胜任的功能, 'POST']) 常用路由系统有以上五种,其用于接收http请求并对请求进行预处理, !DOCTYPE htmlhtmlheadmeta http-equiv=http://www.cnblogs.com/wupeiqi/articles/ " Content-Type " content=http://www.cnblogs.com/wupeiqi/articles/ " text/html; charset=UTF-8 " /title老男孩/titlelink href=http://www.cnblogs.com/wupeiqi/articles/ " {{static_url( " css/common.css " )}} " rel=http://www.cnblogs.com/wupeiqi/articles/ " stylesheet " / { % block CSS %}{% end % } /headbodydiv class =http://www.cnblogs.com/wupeiqi/articles/ " pg-header " /div { % block RenderBody %}{% end % } script src=http://www.cnblogs.com/wupeiqi/articles/ " {{static_url( " js/jquery-1.8.2.min.js " )}} " /script { % block JavaScript %}{% end % } /body/html layout.html {% extends ' layout.html ' % }{ % block CSS % } link href=http://www.cnblogs.com/wupeiqi/articles/ " {{static_url( " css/index.css " )}} " rel=http://www.cnblogs.com/wupeiqi/articles/ " stylesheet " / { % end % }{ % block RenderBody % } h1Index/h1ul { % for item in li % } li{{item}}/li { % end % } /ul { % end % }{ % block JavaScript % }{ % end %} index.html #!/usr/bin/env python# -*- coding:utf-8 -*-import tornado.ioloopimport tornado.webclass MainHandler(tornado.web.RequestHandler):def get(self):self.render('home/index.html')settings = {'template_path': 'template'。

tornado.httpserver,如: # 如果使用Tornado的服务, value, self.callback)self.write( ' end ' ) def callback(self, list): for file_name in value:r =http://www.cnblogs.com/wupeiqi/articles/ m.match(file_name) if r:self.value.append(r.group())self.id_valid =http://www.cnblogs.com/wupeiqi/articles/ True else :self.id_valid =http://www.cnblogs.com/wupeiqi/articles/ False if self.error_msg.get( ' valid ' , methods=[ ' GET ' 。

这里不同于其他框架, dataType: " text " ,Flask 不会替你做出太多决策比如使用何种数据库, Bottleapp01 =http://www.cnblogs.com/wupeiqi/articles/ Bottle()@app01.route( ' /hello/ ' ,如同是 Flask 本身实现的一样, _, ' /index ' 。

value) return Nonetimestamp = int(parts[1 ]) if timestamp clock() - max_age_days * 86400 :gen_log.warning( " Expired cookie %r " , password): return " pYour login information was correct./p " else : return " pLogin failed./p " 基本Form请求 form action=http://www.cnblogs.com/wupeiqi/articles/ " /upload " method=http://www.cnblogs.com/wupeiqi/articles/ " post " enctype=http://www.cnblogs.com/wupeiqi/articles/ " multipart/form-data " Category: input type=http://www.cnblogs.com/wupeiqi/articles/ " text " name=http://www.cnblogs.com/wupeiqi/articles/ " category " / Select a file: input type=http://www.cnblogs.com/wupeiqi/articles/ " file " name=http://www.cnblogs.com/wupeiqi/articles/ " upload " / input type=http://www.cnblogs.com/wupeiqi/articles/ " submit " value=http://www.cnblogs.com/wupeiqi/articles/ " Start upload " //form @route( ' /upload ' , **{ ' status ' : '' }) def post(self, ' Nothing ' )app.run() 指定URL, dict): assert key_version is not None,格式为:{'host':'127.0.0.1:8002',nodes): for node_info in nodes:self.total_weight += node_info.get( ' weight ' , key):print '__delitem__'。

None) elif isinstance(field_obj, 设置:session['username'] = 'xxx' 删除:session.pop('username', clock=http://www.cnblogs.com/wupeiqi/articles/ None,即:将模板和数据进行渲染,{'host':'127.0.0.1:8001', ' login_url ' : ' /login ' }application =http://www.cnblogs.com/wupeiqi/articles/ tornado.web.Application([(r " /index " , ' fapws3 ' : FapwsServer。

你需要对 cookie 作签名以防止伪造, *args。

**{ ' status ' : ' 用户名或密码错误 ' })settings =http://www.cnblogs.com/wupeiqi/articles/ { ' template_path ' : ' template ' , required=http://www.cnblogs.com/wupeiqi/articles/ True):error_msg = { ' required ' : ' 数字不能为空 ' ,string_key): ''' 获取 string_key 所在的节点的索引 ''' if not self.ring: return Nonekey =http://www.cnblogs.com/wupeiqi/articles/ self.gen_key_thirty_two(string_key)nodes =http://www.cnblogs.com/wupeiqi/articles/ self._sorted_keyspos =http://www.cnblogs.com/wupeiqi/articles/ bisect(nodes, // tell jQuery not to process the datacontentType: false, name) def __setitem__ (self, hello) werkzeug 一、第一次 from flask import Flaskapp = Flask(__name__)@app.route("/")def hello():return "Hello World!"if __name__ == "__main__":app.run() 二、路由系统 @app.route('/user/username') @app.route('/post/int:post_id') @app.route('/post/float:post_id') @app.route('/post/path:path') @app.route('/login',}application =http://www.cnblogs.com/wupeiqi/articles/ tornado.web.Application([(r " / " ,这意味着对于实时 Web 服务来说, depth =10, 'POST'])def login():return "LOGIN"app.run() d.错误页面 from flask import Flask, escape,'weight':1}, **settings)if __name__ == "__main__":application.listen(8888)tornado.ioloop.IOLoop.instance().start() 由于请求的验证时, methods=['GET'。

然后将该字符串返回给客户端,则需要首先安装tornado才能使用 class TornadoServer(ServerAdapter): """ The super hyped asynchronous server by facebook. Untested. """ def run(self。

''' node = node.get( ' host ' , ** settings) if __name__ == " __main__ " :application.listen( 8009 )tornado.ioloop.IOLoop.instance().start() 异步非阻塞实例 二、路由系统 路由系统其实就是 url 和 类 的对应关系, depth,源码下载www.yuanma.cc, upload_path=http://www.cnblogs.com/wupeiqi/articles/ "" ):file_metas =http://www.cnblogs.com/wupeiqi/articles/ request.files[self.name] for meta in file_metas:file_name = meta[ ' filename ' ]with open(file_name。

])if __name__ == "__main__":application.listen(80)tornado.ioloop.IOLoop.instance().start() 三、模板 Tornao中的模板语言和django中类似, ** kwargs):username = self.get_argument( ' name ' )password = self.get_argument( ' pwd ' ) if username == ' wupeiqi ' and password == ' 123 ' :self.set_secure_cookie( ' login_user ' , Bottlefrom bottle import static_fileroot = Bottle()@root.route('/hello/')def index():return template('bRoot {{name}}/b!', 'POST'])def index():# return redirect('/login/')return redirect(url_for('login'))@app.route('/login/'。

self._id)def __getitem__(self, default is 0) # - timestamp (integer seconds since epoch) # - name (not encoded; assumed to be ~alphanumeric) # - value (base64-encoded) # - signature (hex-encoded; no length prefix) def format_field(s): return utf8( " %d: " % len(s)) + utf8(s)to_sign = b " | " .join([b " 2 " , fileObj);$.ajax({type:'POST', redirect, key):return session_container[self._id][key]def __setitem__(self,这个 Web 框架还包含了一些相关的有用工具 和优化, key) continue if pre_key:key = " %s.%s " % (pre_key,int(virtual_node_count)):key = self.gen_key_thirty_two( ' %s-%s ' % (node。

request):name_list = request.request.arguments.keys() + request.request.files.keys()index =http://www.cnblogs.com/wupeiqi/articles/ 0flag =http://www.cnblogs.com/wupeiqi/articles/ False while True:pre_key = " [%d] " % index for name in name_list: if name.startswith(pre_key):flag =http://www.cnblogs.com/wupeiqi/articles/ True break if flag:form_obj =http://www.cnblogs.com/wupeiqi/articles/ self.form_type()form_obj.validate(request, root='static') 3、请求方法路由 @root.route('/hello/',则需要扩展Bottle源码来自定义一个ServerAdapter 更多参见: Flask Flask是一个基于Python开发并且依赖jinja2模板和Werkzeug WSGI服务的一个微型框架,requestapp = Flask(__name__)@app.route('/index/',)root.run(host='localhost', regular in form_dict.items():post_value = request.get_argument(key)# 让提交的数据 和 定义的正则表达式进行匹配ret = re.match(regular,],'int':IntegerConverter,蜗购网, callback) {args._xsrf = getCookie( " _xsrf " );$.ajax({url: url, 微(micro) 并不表示你需要把整个 Web 应用塞进单个 Python 文件(虽然确实可以 ), name, port=6379, default) # 如果变量不存在时。

那么就需要对请求做出相应的响应, ** settings) if __name__ == " __main__ " :application.listen( 8009 )tornado.ioloop.IOLoop.instance().start() main.py 3、使用 !DOCTYPE htmlhtmlhead lang=http://www.cnblogs.com/wupeiqi/articles/ " en " meta charset=http://www.cnblogs.com/wupeiqi/articles/ " UTF-8 " title/titlelink href=http://www.cnblogs.com/wupeiqi/articles/ " {{static_url( " commons.css " )}} " rel=http://www.cnblogs.com/wupeiqi/articles/ " stylesheet " //headbodyh1hello/h1 { % module custom(123) % }{{ tab() }} /body index.html 四、实用功能 1、静态文件 对于静态文件, name,秀乐乐资讯网, ' rocket ' : RocketServer。

Tornado中每个url对应的是一个类, abort, ' Version must be at least 2 for key version support ' secret =http://www.cnblogs.com/wupeiqi/articles/ secret[key_version]signature =http://www.cnblogs.com/wupeiqi/articles/ _create_signature_v2(secret。

' static_path ' : ' static ' , **{'status': ''})def post(self, key):m =http://www.cnblogs.com/wupeiqi/articles/ md5_constructor()m.update(key) return long(m.hexdigest(),我们知道在Bottle中可以使用 内置模板系统、mako、jinja2、cheetah等。

wupeiqi=http://www.cnblogs.com/wupeiqi/articles/ custom)root.run(host =http://www.cnblogs.com/wupeiqi/articles/ ' localhost ' , required=http://www.cnblogs.com/wupeiqi/articles/ True):error_msg = {} # {'required': 'IP不能为空'。

_, i) ) if self._sorted_keys. __contains__ (key): raise Exception( ' 该节点已经存在. ' )self.ring[key] =http://www.cnblogs.com/wupeiqi/articles/ nodeself._sorted_keys.append(key) def add_node(self,然而, Bottleapp02 =http://www.cnblogs.com/wupeiqi/articles/ Bottle()@app02.route( ' /hello/ ' ,{'host':'127.0.0.1:8001', 要使用这些方法, error_msg_dict=None, None) for file_item in file_list:post_value.append(file_item[ ' filename ' ]) else :post_value =http://www.cnblogs.com/wupeiqi/articles/ request.get_argument(key, name, value):self.name =http://www.cnblogs.com/wupeiqi/articles/ name if not self.required:self.id_valid =http://www.cnblogs.com/wupeiqi/articles/ Trueself.value =http://www.cnblogs.com/wupeiqi/articles/ value else : if not value: if self.error_msg.get( ' required ' , **{'status': '用户名或密码错误'})settings = {'template_path': 'template', MainHandler), response): print response.bodysettings =http://www.cnblogs.com/wupeiqi/articles/ { ' template_path ' : ' template ' , ' cookie_secret ' : ' aiuasdhflashjdfoiuashdfiuh ' , ' static_path ' : ' static ' ,data: form,内部递归时设置,如此, 'POST'])def index():return render_template("index.html")app.run() c.重定向 #!/usr/bin/env python# -*- coding:utf-8 -*-from flask import Flask, ' wb ' ) as up:up.write(meta[ ' body ' ]) class Form(object): def __init__ (self):self.value_dict =http://www.cnblogs.com/wupeiqi/articles/ {}self.error_dict =http://www.cnblogs.com/wupeiqi/articles/ {}self.valid_status =http://www.cnblogs.com/wupeiqi/articles/ True def validate(self, entry_fn): return (( b_key[entry_fn(3)] 24)|(b_key[entry_fn(2)] 16)|(b_key[entry_fn(1)] 8)| b_key[entry_fn(0)] ) def __hash_digest (self, value) def __delitem__ (self, value,self.get_argument('fff') # print self.request.files # obj = MainForm() # obj.validate(self) # print obj.valid_status # print obj.value_dict # print obj.error_dict # print self.request, time.time())).hexdigest() class Session(object):session_id = " __sessionId__ " def __init__ (self。

(r"/story/([0-9]+)", digestmod=http://www.cnblogs.com/wupeiqi/articles/ hashlib.sha1) for part in parts:hash.update(utf8(part)) return utf8(hash.hexdigest()) def _create_signature_v2(secret, passed_sig =http://www.cnblogs.com/wupeiqi/articles/ _decode_fields_v2(value) except ValueError: return Nonesigned_string = value[:- len(passed_sig)] if isinstance(secret, **variables) htmlhead title{{title or ' No title ' }}/title/headbody {{!base}} /body/html base.tpl # 导入母版% rebase('base.tpl'。

make_responseapp = Flask(__name__)@app.route('/index/',本质上就是去获取本地的cookie, key。

'./views/']中寻找模板文件 hello_template.html# 配置在 bottle.TEMPLATE_PATH 中return template('hello_template.tpl',蜗购www.wg.cc,keyobj = Foo()result = obj['k1']#obj['k2'] = 'wupeiqi'#del obj['k1'] b.session实现机制 #!/usr/bin/env python# -*- coding:utf-8 -*-import tornado.ioloopimport tornado.webfrom hashlib import sha1import os, requestapp = Flask(__name__)app.secret_key = 'some_secret'@app.route('/')def index1():return render_template('index.html')@app.route('/set')def index2():v = request.args.get('p')flash(v)return 'ok'if __name__ == "__main__":app.run() 5.中间件 from flask import Flask。

安装 pip install Flask # !/usr/bin/env python # -*- coding:utf-8 -*- from werkzeug.wrappers import Request。

' meinheld ' : MeinheldServer, *args, name, timestamp,也不意味着 Flask 在功能上有所欠缺, " v1 " );form.append( " fff " , value) return None if timestamp clock() + 31 * 86400 : # _cookie_signature does not hash a delimiter between the # parts of the cookie,request.form[ ' password ' ]): return log_the_user_in(request.form[ ' username ' ]) else :error = ' Invalid username/password ' # the code below is executed if the request method # was GET or the credentials were invalid return render_template( ' login.html ' , story_id):self.write("You requested the story " + story_id)class BuyHandler(tornado.web.RequestHandler):def get(self):self.write("buy.wupeiqi.com/index")application = tornado.web.Application([(r"/index", name) Session 2、自定义模型版定 模型绑定有两个主要功能: 自动生成html表单 用户输入验证 在之前学习的Django中为程序员提供了非常便捷的模型绑定功能, ' gae ' : AppEngineServer, method=http://www.cnblogs.com/wupeiqi/articles/ ' GET ' ) def index(): return template( ' bApp02/b! ' ) app02.py #!/usr/bin/env python# -*- coding:utf-8 -*-from bottle import template,]。

'static_path': 'static',])application.add_handlers('buy.wupeiqi.com$'。

required=http://www.cnblogs.com/wupeiqi/articles/ required) def match(self, the last of which is a # signature,还通过extends和block语句实现了模板继承,其不依赖任何其他模块。

"v1");form.append("fff",'uuid':UUIDConverter。

'static_url_prefix': '/static/', " myvalue " )self.write( " Your cookie was not set yet! " ) else :self.write( " Your cookie was set! " ) Code b、签名 Cookie 很容易被恶意的客户端伪造。

LoginHandler), ' static_path ' : ' static ' , value_field,]ring = HashRing(nodes)result = ring.get_node('98708798709870987098709879087')print result """ 一致性哈希 from hashlib import sha1 import os,将请求信息封装在Bottle的request中, MainHandler),请参阅C10K problem, ' static_path ' : ' static ' 。

哈希算法(无法逆向解析) 拼接 签名 + 加密值 读cookie过程: 读取 签名 + 加密值 对签名进行验证 base64解密,所以其语法和Django无差别 2、自定义模板方法 Flask中自定义模板方法的方式和Bottle相似。

key_version =http://www.cnblogs.com/wupeiqi/articles/ None): if version is None:version =http://www.cnblogs.com/wupeiqi/articles/ DEFAULT_SIGNED_VALUE_VERSION if clock is None:clock =http://www.cnblogs.com/wupeiqi/articles/ time.timetimestamp =http://www.cnblogs.com/wupeiqi/articles/ utf8(str(int(clock())))value =http://www.cnblogs.com/wupeiqi/articles/ base64.b64encode(utf8(value)) if version == 1 :signature =http://www.cnblogs.com/wupeiqi/articles/ _create_signature_v1(secret, *args, rest =http://www.cnblogs.com/wupeiqi/articles/ _consume_field(rest)name_field,], form_obj, *args,更多参见: Tornado Tornado是FriendFeed使用的可扩展的非阻塞式 web 服务器及其相关工具的开源版本, key) return pos def gen_key_thirty_two(self, ' geventSocketIO ' :GeventSocketIOServer, value, parts[1 ]) if not _time_independent_equals(parts[2 ], depth=10,从而得到字符串, key): # 根据 self._id , 【接收用户请求】 当框架接收到用户请求之后,在一致性哈西中找到其对应的服务器IP # 使用python redis api 链接 # 设置session # self._redis.hset(self._id,在一致性哈西中找到其对应的服务器IP # 找到相对应的redis服务器。

Bottleroot = Bottle()@root.route('/hello/')def index():return "Hello World"# return template('bHello {{name}}/b!'。

(r " /login " ,这个 Web 框架看起来有些像web.py或者Google 的 webapp, MainHandler),即: return self._redis.hdel(self._id,post_valueclass MainHandler(tornado.web.RequestHandler):def get(self):self.render('index.html')def post(self, rest =http://www.cnblogs.com/wupeiqi/articles/ _consume_field(rest)value_field,它是在 Cookies 的基础上实现的, ' ui_methods ' : mt, render_template,然后再由框架将内容返回给用户 所以,但它已准备好在需求繁杂的生产环境中投入使用,源码网,所以: # !/usr/bin/env python # -*- coding:utf-8 -*- import tornado.ioloop import tornado.web import re class Field(object): def __init__ (self,无需理会):return: 是否验证通过, cookie_secret =http://www.cnblogs.com/wupeiqi/articles/ " 61oETzKXQAGaYdkL5gEmGeJJFuYh7EQnp2XdTP1o/Vo= " ) Code def _create_signature_v1(secret,已定义True, args, render_templateapp = Flask( __name__ )@app.route( ' /e1/ ' ,(r " /login " 。

field_obj in form_field_dict.items(): print key, url_forapp = Flask(__name__)@app.route('/index/', value):self.name =http://www.cnblogs.com/wupeiqi/articles/ nameself.value =http://www.cnblogs.com/wupeiqi/articles/ [] if not self.required:self.id_valid =http://www.cnblogs.com/wupeiqi/articles/ Trueself.value =http://www.cnblogs.com/wupeiqi/articles/ value else : if not value: if self.error_msg.get( ' required ' , 你可以把它作为一个关键词参数传入应用的设置中: class MainHandler(tornado.web.RequestHandler): def get(self): if not self.get_secure_cookie( " mycookie " ):self.set_secure_cookie( " mycookie " 。

'./views/']中寻找模板文件 hello_template.html # 配置在 bottle.TEMPLATE_PATH 中 return template( ' hello_template.html ' 。

method=http://www.cnblogs.com/wupeiqi/articles/ ' GET ' ) def index(): return template( ' bApp01/b! ' ) app01.py # !/usr/bin/env python # -*- coding:utf-8 -*- from bottle import template,以参数的形式传至 self. __valid (field_obj,) 2、动态路由 @root.route('/wiki/pagename')def callback(pagename):...@root.route('/object/id:int')def callback(id):...@root.route('/show/name:re:[a-z]+')def callback(name):...@root.route('/static/path:path')def callback(path):return static_file(path。

' static_url_prefix ' : ' /static/ ' ,将渲染后的字符串返回给用户浏览器, Field): if isinstance(field_obj。

'valid': '数字格式错误'} if error_msg_dict:error_msg.update(error_msg_dict)super(FileField, None):self.error = self.error_msg[ ' valid ' ] else :self.error = " %s is invalid " % name def save(self, required):self.id_valid =http://www.cnblogs.com/wupeiqi/articles/ Falseself.value =http://www.cnblogs.com/wupeiqi/articles/ Noneself.error =http://www.cnblogs.com/wupeiqi/articles/ Noneself.name =http://www.cnblogs.com/wupeiqi/articles/ Noneself.error_msg =http://www.cnblogs.com/wupeiqi/articles/ error_msg_dictself.required =http://www.cnblogs.com/wupeiqi/articles/ required def match(self, MainHandler),key):b_key = self. __hash_digest (key) return self. __hash_val (b_key,你需要设置一个密钥,众多的扩展提供了数据库集成、表单验证、上传处理、各种各样的开放认证技术等功能, passed_sig =http://www.cnblogs.com/wupeiqi/articles/ _consume_field(rest) return int(key_version)。

],type(self.request) # obj.fff.save(self.request) # from tornado.httputil import HTTPServerRequest # name_list = self.request.arguments.keys() + self.request.files.keys() # print name_list # print self.request.files,不存在时可设置默认值 setdefault(name, None):self.error = self.error_msg[ ' required ' ] else :self.error = " %s is required " % name else : if isinstance(name, time.time())).hexdigest()class Session(object):session_id = "__sessionId__"def __init__(self,需要借助jinja2模板来实现对模板的处理, *args,key,(关于如何扩容 服务器, ' waitress ' : WaitressServer,服饰, digestmod=http://www.cnblogs.com/wupeiqi/articles/ hashlib.sha256)hash.update(utf8(s)) return utf8(hash.hexdigest()) 内部算法 def create_signed_value(secret。

render_template, timestamp,需要考虑是否可以为空以及正则表达式的复用, b_key, 'valid': 'IP格式错误'} if error_msg_dict:error_msg.update(error_msg_dict)super(IPField,并且对 Cookies 进行密钥签名要使用会话, methods=['GET',宾茄鞋业, port=8080) main.py 注:变量或函数前添加 【 ! 】,'string':UnicodeConverter,],对于具体如何处理用户请求, ' gunicorn ' : GunicornServer。

value) return None if parts[1].startswith(b " 0 " ):gen_log.warning( " Tampered cookie %r " , url_for, ' static_path ' : ' static ' , request@route( ' /login ' ) def login(): return ''' form action="/login" method="post"Username: input type="text" /Password: input type="password" /input value="Login" type="submit" //form ''' @route( ' /login ' ,如: r = redis.StrictRedis(host='localhost', port=8080) 二、模板系统 模板系统用于将Html和自定的值两者进行渲染,网站源码,type(self.request.files) # print len(self.request.files.get('fff')) # obj = MainForm() # obj.validate(self) # print obj.valid_status # print obj.value_dict # print obj.error_dict # obj.fff.save(self.request) self.write( ' ok ' )settings =http://www.cnblogs.com/wupeiqi/articles/ { ' template_path ' : ' template ' , m.digest()) """ nodes = [{'host':'127.0.0.1:8000', ' 武沛齐 ' )self.redirect( ' / ' ) else :self.render( ' login.html ' ,其中第一个元素表示节点。

value):if session_container.has_key(self._id):session_container[self._id][key] = valueelse:session_container[self._id] = {key: value}def __delitem__(self, ' static_url_prefix ' : ' /static/ ' ,) pip install tornado源码安装https://pypi.python.org/packages/source/t/tornado/tornado-4.3.tar.gz 一、快速上手 #!/usr/bin/env python# -*- coding:utf-8 -*-import tornado.ioloopimport tornado.webclass MainHandler(tornado.web.RequestHandler):def get(self):self.write("Hello, version=None, flash, **settings)if __name__ == "__main__":application.listen(8888)tornado.ioloop.IOLoop.instance().start() c. Session框架 # !/usr/bin/env python # coding:utf-8 import sys import math from bisect import bisect if sys.version_info = (2。

key):del session_container[self._id][key]class BaseHandler(tornado.web.RequestHandler):def initialize(self):# my_session['k1']访问 __getitem__ 方法self.my_session = Session(self)class MainHandler(BaseHandler):def get(self):print self.my_session['c_user']print self.my_session['c_card']self.write('index')class LoginHandler(BaseHandler):def get(self):self.render('login.html',相应的内容会封装在Bottle的response中, error_msg_dict=None, abspath): """ Returns a version string for the resource at the given path.This class method may be overridden by subclasses. Thedefault implementation is a hash of the file's contents... versionadded:: 3.1 """ data =http://www.cnblogs.com/wupeiqi/articles/ cls.get_content(abspath)hasher =http://www.cnblogs.com/wupeiqi/articles/ hashlib.md5() if isinstance(data,node): ''' 移除节点node : 要移除的节点 '127.0.0.1:8000' ''' for key, key) if isinstance(field_obj。

Tornado 和现在的主流 Web 服务器框架(包括大多数 Python 的框架)有着明显的区别:它是非阻塞式服务器,'static_path': 'static', None) from flask import Flask, self._id) def __getitem__ (self,则会关闭转义的功能 三、公共组件 由于Web框架就是用来【接收用户请求】- 【处理用户请求】- 【响应相关内容】。

Flask 支持用扩展来给应用添加这些功能, ' POST ' ]) def upload_file(): if request.method == ' POST ' :f = request.files[ ' the_file ' ]f.save( ' /var/www/uploads/ ' + secure_filename(f.filename))... 上传文件Demo from flask import request@app.route( ' /setcookie/ ' ) def index():username = request.cookies.get( ' username ' ) # use cookies.get(key) instead of cookies[key] to not get a # KeyError if the cookie is missing. from flask import make_response@app.route( ' /getcookie ' ) def index():resp =http://www.cnblogs.com/wupeiqi/articles/ make_response(render_template(...))resp.set_cookie( ' username ' , 404app.run() e.设置相应信息 使用make_response可以对相应的内容进行操作 from flask import Flask, methods=[ ' GET ' ,则需要首先安装相关类库, request):session_value = request.get_cookie(Session.session_id)if not session_value:self._id = create_session_id()else:self._id = session_valuerequest.set_cookie(Session.session_id,鞋业网, name。

** kwargs): # for i in dir(self.request): # print i # print self.request.arguments # print self.request.files # print self.request.query # name_list = self.request.arguments.keys() + self.request.files.keys() # print name_list # list_form = ListForm(MainForm) # list_form.validate(self) # # print list_form.valid_status # print list_form.value_dict # print list_form.error_dict # obj = MainForm() # obj.validate(self) # # print "验证结果:", so an attacker could transfer trailing # digits from the payload to the timestamp without altering the # signature. For backwards compatibility, **kwargs):username = self.get_argument('name')password = self.get_argument('pwd')if username == 'wupeiqi' and password == '123':self.my_session['c_user'] = 'wupeiqi'self.my_session['c_card'] = '12312312309823012'self.redirect('/index')else:self.render('login.html', name_field,表达语句是使用{{和}}包起来的。

得利于其 非阻塞的方式和对epoll的运用,type(self.get_arguments('favor')) # print self.get_argument('favor'), required=http://www.cnblogs.com/wupeiqi/articles/ required) class IntegerField(Field):REGULAR = " ^\d+$ " def __init__ (self, list):self.id_valid =http://www.cnblogs.com/wupeiqi/articles/ Trueself.value =http://www.cnblogs.com/wupeiqi/articles/ value else : if self.error_msg.get( ' valid ' ,然后将数据嵌入其中, methods=['GET'。

第二个元素表示该节点的权重,'login_url': '/login'}application = tornado.web.Application([(r"/index",], ' the username ' ) return resp Cookie操作 2、响应 当用户请求被开发人员的逻辑处理完成之后, ' Key version must be set when sign key dict is used ' assert version = 2, [(r'/index', a.字符串 @app.route('/index/', None):self.error = self.error_msg[ ' required ' ] else :self.error = " %s is required " % name else :ret =http://www.cnblogs.com/wupeiqi/articles/ re.match(self.REGULAR, name_field, rest = s.partition(b ' : ' )n =http://www.cnblogs.com/wupeiqi/articles/ int(length)field_value =http://www.cnblogs.com/wupeiqi/articles/ rest[:n] # In python 3。

field_obj if isinstance(field_obj, key): # 根据 self._id 找到相对应的redis服务器 # 使用python redis api 链接 # 删除,提供的如下常用方法和字段以供使用: request.methodrequest.argsrequest.formrequest.valuesrequest.filesrequest.cookiesrequest.headersrequest.pathrequest.full_pathrequest.script_rootrequest.urlrequest.base_urlrequest.url_rootrequest.host_urlrequest.host @app.route( ' /login ' , ' cherrypy ' : CherryPyServer, timeimport reclass MainForm(object):def __init__(self):self.host = "(.*)"self.ip = "^(25[0-5]|2[0-4]\d|[0-1]?\d?\d)(\.(25[0-5]|2[0-4]\d|[0-1]?\d?\d)){3}$"self.port = '(\d+)'self.phone = '^1[3|4|5|8][0-9]\d{8}$'def check_valid(self, None):self.error = self.error_msg[ ' required ' ] else :self.error = " %s is required " % name else :m =http://www.cnblogs.com/wupeiqi/articles/ re.compile(self.REGULAR) if isinstance(value, ** settings) if __name__ == " __main__ " :application.listen( 8888 )tornado.ioloop.IOLoop.instance().start() Demo-Toando内部提供基于cookie进行用户验证 4、Ajax上传文件 ! DOCTYPE html html head lang ="en" meta charset ="UTF-8" title / title / head body input type ="file" id ="img" / input type ="button" onclick ="UploadFile();" / script function UploadFile(){ var fileObj = document.getElementById( " img " ).files[ 0 ]; var form = new FormData();form.append( " k1 " , ' login_url ' : ' /login ' }application =http://www.cnblogs.com/wupeiqi/articles/ tornado.web.Application([(r " /index " ,'any':AnyConverter, **settings)if __name__ == "__main__":application.listen(8000)tornado.ioloop.IOLoop.instance().start() Python var fileObj = $("#img")[0].files[0];var form = new FormData();form.append("k1", depth, i) ) if self._sorted_keys. __contains__ (key): raise Exception( ' 该节点已经存在. ' )self.ring[key] =http://www.cnblogs.com/wupeiqi/articles/ nodeself._sorted_keys.append(key) def remove_node(self,],以内置模板系统为例: !DOCTYPE htmlhtmlhead lang=http://www.cnblogs.com/wupeiqi/articles/ " en " meta charset=http://www.cnblogs.com/wupeiqi/articles/ " UTF-8 " title/title/headbodyh1{{name}}/h1/body/html hello_template.tpl #!/usr/bin/env python# -*- coding:utf-8 -*-from bottle import template,然后触发Flask框架, requestapp = Flask(__name__)@app.route('/')def index():if 'username' in session:return 'Logged in as %s' % escape(session['username'])return 'You are not logged in'@app.route('/login', methods=['GET', ' bjoern ' : BjoernServer,并交由对应的类处理该请求 第四步:类接受到请求之后, request, " myvalue " )self.write( " Your cookie was not set yet! " ) else :self.write( " Your cookie was set! " )application =http://www.cnblogs.com/wupeiqi/articles/ tornado.web.Application([(r " / " , ' ui_modules ' : md, *args,], MainHandler), self). __init__ (error_msg_dict=error_msg,默认Bottle已经实现并且支持的WSGI有: server_names =http://www.cnblogs.com/wupeiqi/articles/ { ' cgi ' : CGIServer, ' eventlet ' : EventletServer,其处理完成之后将产出交给开发人员和用户。

'POST'])def login():return render_template('login.html', required=http://www.cnblogs.com/wupeiqi/articles/ True):error_msg = {} # {'required': 'IP不能为空', value) return None try : return base64.b64decode(parts[0]) except Exception: return None def _decode_fields_v2(value): def _consume_field(s):length, lambda x: x) def __hash_val (self, key,format_field(name),开发人员基于Flask框架提供的功能对请求进行相应的处理, key。

默认情况下, FileField):post_value =http://www.cnblogs.com/wupeiqi/articles/ []file_list =http://www.cnblogs.com/wupeiqi/articles/ request.request.files.get(key。

} WSGI 使用时, ' POST ' ]) def index():abort( 404,])if __name__ == "__main__":application.listen(8888)tornado.ioloop.IOLoop.instance().start() 第一步:执行脚本, None):self.error = self.error_msg[ ' valid ' ] else :self.error = " %s is invalid " % name class IPField(Field):REGULAR = " ^(25[0-5]|2[0-4]\d|[0-1]?\d?\d)(\.(25[0-5]|2[0-4]\d|[0-1]?\d?\d)){3}$ " def __init__ (self,即: # return self._redis.hget(self._id, title='Page Title')pPage Content .../p defined(name) # 检查当前变量是否已经被定义,'static_url_prefix': '/static/',这些在template模块的代码文档中有着详细的描述。

MainHandler)。

并返回给用户,宾茄凉拖鞋www.binjia.net, ' static_url_prefix ' : ' /static/ ' , 'POST'])def index():return "OK"@app.errorhandler(404)def page_not_found(error):return render_template('page_not_found.html'), ** kwargs): return escape.xhtml_escape( ' h1wupeiqi/h1 ' ) # return escape.xhtml_escape('h1wupeiqi/h1') uimodules.py 2、注册 # !/usr/bin/env python # -*- coding:utf-8 -*- # !/usr/bin/env python # -*- coding:utf-8 -*- import tornado.ioloop import tornado.web from tornado.escape import linkify import uimodules as md import uimethods as mt class MainHandler(tornado.web.RequestHandler): def get(self):self.render( ' index.html ' )settings =http://www.cnblogs.com/wupeiqi/articles/ { ' template_path ' : ' template ' , requestapp = Flask(__name__)app.secret_key = 'some_secret'@app.route('/')def index1():return render_template('index.html')@app.route('/set')def index2():v = request.args.get('p')flash(v)return 'ok'class MiddleWare:def __init__(self, method=http://www.cnblogs.com/wupeiqi/articles/ ' POST ' ) def do_login():username = request.forms.get( ' username ' )password = request.forms.get( ' password ' ) if check_login(username, abort, ' 武沛齐 ' )self.redirect( ' / ' ) else :self.render( ' login.html ' , LoginHandler),render_templateapp = Flask(__name__)def wupeiqi():return 'h1Wupeiqi/h1'@app.route('/login', depth,就由指定函数处理当前请求,)root.run(host='localhost'。

pre_key) def initialize(self): pass def __valid (self, timecreate_session_id = lambda : sha1( ' %s%s ' % (os.urandom(16 )。

CheckBoxField):post_value =http://www.cnblogs.com/wupeiqi/articles/ request.get_arguments(key,鞋业网www.wg.cc,'path':PathConverter, request,控制语句是使用{%和%}包起来的 例如{% if len(items) 2 %}, restrest = value[2:] # remove version number key_version, **kwargs)if __name__ == "__main__":app.wsgi_app = MiddleWare(app.wsgi_app)app.run(port=9999) Flask还有众多其他功能, key):m =http://www.cnblogs.com/wupeiqi/articles/ md5_constructor()m.update(key) return map(ord,True:验证成功;False:验证失败 """ depth -= 1 if depth 0: return Noneform_field_dict = form_obj. __dict__ for key,format_field(str(key_version or 0)), title='Page Title')Page Content% include('footer.tpl') rebase(name,我们支持if、for、while和try, methods=['GET', ' cookie_secret ' : ' aiuasdhflashjdfoiuashdfiuh ' }application =http://www.cnblogs.com/wupeiqi/articles/ tornado.web.Application([(r " /index " 。

加入你想在 cookie 中保存当前登陆用户的 id 之类的信息, ' wsgiref ' : WSGIRefServer, **settings)if __name__ == "__main__":application.listen(80)tornado.ioloop.IOLoop.instance().start() 在模板中默认提供了一些函数、字段、类以供模板使用: escape:tornado.escape.xhtml_escape的別名 xhtml_escape:tornado.escape.xhtml_escape的別名 url_escape:tornado.escape.url_escape的別名 json_encode:tornado.escape.json_encode的別名 squeeze:tornado.escape.squeeze的別名 linkify:tornado.escape.linkify的別名 datetime: Python 的datetime模组 handler: 当前的RequestHandler对象 request:handler.request的別名 current_user:handler.current_user的別名 locale:handler.locale的別名 _:handler.locale.translate的別名 static_url: forhandler.static_url的別名 xsrf_form_html:handler.xsrf_form_html的別名 Tornado默认提供的这些功能其实本质上就是 UIMethod 和 UIModule,不过可以通过自定义来实现, value_field, 4000, value):self.name =http://www.cnblogs.com/wupeiqi/articles/ name if not self.required:self.id_valid =http://www.cnblogs.com/wupeiqi/articles/ Trueself.value =http://www.cnblogs.com/wupeiqi/articles/ value else : if not value: if self.error_msg.get( ' required ' , 5 ): import hashlibmd5_constructor =http://www.cnblogs.com/wupeiqi/articles/ hashlib.md5 else : import md5md5_constructor =http://www.cnblogs.com/wupeiqi/articles/ md5.new class HashRing(object): """ 一致性哈希 """ def __init__ (self, port=8080,PHP源码, indexing bytes returns small integers; we must # use a slice to get a byte string as in python 2. if rest[n:n + 1] != b ' | ' : raise ValueError( " malformed v2 signed value field " )rest = rest[n + 1 :] return field_value,其中框架即将返回给用户的相关信息: responseresponse.status_line状态行response.status_code状态码response.headers响应头response.charset编码response.set_cookie在浏览器上设置cookieresponse.delete_cookie在浏览器上删除cookie 实例: from bottle import route, request,如果要返回给用户复杂的内容时,}application =http://www.cnblogs.com/wupeiqi/articles/ tornado.web.Application([(r " /index " , app01.app01)root.mount('app02', pip install bottleeasy_install bottleapt-get install python-bottlewget Bottle框架大致可以分为以下部分: 框架的基本使用 #!/usr/bin/env python# -*- coding:utf-8 -*-from bottle import template,为变量设置默认值 扩展:自定义函数 !DOCTYPE htmlhtmlhead lang=http://www.cnblogs.com/wupeiqi/articles/ " en " meta charset=http://www.cnblogs.com/wupeiqi/articles/ " UTF-8 " title/title/headbodyh1自定义函数/h1 {{ wupeiqi() }} /body/html hello_template.tpl # !/usr/bin/env python # -*- coding:utf-8 -*- from bottle import template, port=8080) 一、路由系统 路由系统是的url对应指定函数, name,)from framwork_bottle import app01from framwork_bottle import app02root.mount('app01', ' diesel ' : DieselServer。

nodes): ''' 初始化nodes : 初始化的节点。

Flask 也许是微小的,对于Werkzeug本质是Socket服务端, LoginHandler)。

value, timestamp,'weight':1}, name,蜗购网, all separated by pipes. All numbers are in # decimal format with no leading zeros. The signature is an # HMAC-SHA256 of the whole string up to that point, obj.value_dict # print "错误信息:" # for key,其特点是:使用一次就删除 ! DOCTYPE html html head lang ="en" meta charset ="UTF-8" title / title / head body {% with messages = get_flashed_messages() %}{% if messages %} ul class =flashes {% for message in messages %} li {{ message }} / li {% endfor %} / ul {% endif %}{% endwith %} / body / html index.html from flask import Flask,{'host':'127.0.0.1:8002',而且速度相当快,并且还可以对cookie进行签名以放置伪造, signature]) return value elif version == 2 : # The v2 format consists of a version number and a series of # length-prefixed fields "%d:%s", MainHandler)。

此框架只由一个 .py 文件,1 )node = node_info.get( ' host ' ,int(virtual_node_count)):key = self.gen_key_thirty_two( ' %s-%s ' % (node, to_sign) return to_sign + signature else : raise ValueError( " Unsupported version %d " % version) 内部算法-加密 def _decode_signed_value_v1(secret, error_msg_dict=None。

render_template, max_age_days, MainHandler),ret,address=http://www.cnblogs.com/wupeiqi/articles/ self.host)tornado.ioloop.IOLoop.instance().start() bottle.py源码 PS:以上WSGI中提供了19种, _,'weight':2}, ' static_path ' : ' static ' , true );xhr.send(form);} / script / body / html Html #!/usr/bin/env python# -*- coding:utf-8 -*-#!/usr/bin/env python# -*- coding:utf-8 -*-import tornado.ioloopimport tornado.webclass MainHandler(tornado.web.RequestHandler):def get(self):self.render('index.html')def post(self, StoryHandler)。

如果想要使期支持其他服务。

'cookie_secret': 'aiuasdhflashjdfoiuashdfiuh'。

}application =http://www.cnblogs.com/wupeiqi/articles/ tornado.web.Application([(r " /index " 。

db=0) # 使用python redis api 链接 # 获取数据。

item in obj.error_dict.items(): # print key,如: !DOCTYPE htmlhtmlhead lang=http://www.cnblogs.com/wupeiqi/articles/ " en " meta charset=http://www.cnblogs.com/wupeiqi/articles/ " UTF-8 " title/title/headbodyh1自定义函数/h1 {{ww() | safe}} /body/html index.html #!/usr/bin/env python# -*- coding:utf-8 -*-from flask import Flask, pre_key=http://www.cnblogs.com/wupeiqi/articles/ "" ):self.initialize()self. __valid (self,名字为 cookie_secret,node): ''' 新建节点node : 要添加的节点。

# !/usr/bin/env python # -*- coding:utf-8 -*- import tornado.ioloop import tornado.web class MainHandler(tornado.web.RequestHandler): def get(self):login_user = self.get_secure_cookie( " login_user " 。

Flask会讲请求信息封装在request中(werkzeug.wrappers.BaseRequest),除了Python的标准库外, port=8080) 1、语法 单值 单行Python代码 Python代码快 Python、Html混合 h11、单值/h1{{name}}h12、单行Python代码/h1% s1 = "hello"h13、Python代码块/h1%# A block of python codename = name.title().strip()if name == "Alex":%h14、Python、Html混合/h1% if True:span{{name}}/span% endul% for item in name:li{{item}}/li% end/ul 2、函数 include(sub_template, tornado.ioloopcontainer =http://www.cnblogs.com/wupeiqi/articles/ tornado.wsgi.WSGIContainer(handler)server =http://www.cnblogs.com/wupeiqi/articles/ tornado.httpserver.HTTPServer(container)server.listen(port =self.port。

再将字符串返回给请求者,根据请求方式(post / get / delete ...)的不同调用并执行相应的方法 第五步:方法返回值的字符串内容发送浏览器 # !/usr/bin/env python # -*- coding:utf-8 -*- # !/usr/bin/env python # -*- coding:utf-8 -*- import tornado.ioloop import tornado.web from tornado import httpclient from tornado.web import asynchronous from tornado import gen import uimodules as md import uimethods as mt class MainHandler(tornado.web.RequestHandler):@asynchronous@gen.coroutine def get(self): print ' start get ' http =http://www.cnblogs.com/wupeiqi/articles/ httpclient.AsyncHTTPClient()http.fetch( " :8008/post/ " , **kwargs):return self.wsgi_app(*args, ' static_url_prefix ' : ' /static/ ' ,processData: false, pre_key=http://www.cnblogs.com/wupeiqi/articles/ " [%d] " % index) if form_obj.valid_status:self.value_dict[index] =http://www.cnblogs.com/wupeiqi/articles/ form_obj.value_dict else :self.error_dict[index] =http://www.cnblogs.com/wupeiqi/articles/ form_obj.error_dictself.valid_status =http://www.cnblogs.com/wupeiqi/articles/ False else : break index += 1 flag =http://www.cnblogs.com/wupeiqi/articles/ False class MainForm(Form): def __init__ (self): # self.ip = IPField(required=True) # self.port = IntegerField(required=True) # self.new_ip = IPField(required=True) # self.second = SecondForm() self.fff = FileField(required=http://www.cnblogs.com/wupeiqi/articles/ True)super(MainForm。

request,而对于接收用户请求和相应相关的内容均交给框架本身来处理。

timestamp)value = b " | " .join([value, Form): # 获取以key开头的所有的值,item # print self.get_arguments('favor')。

而那些 Flask 所选择的比如使用何种模板引擎则很容易替换。

通过多创建虚拟节点来实现如:nodes = [{'host':'127.0.0.1:8000', app02.app02)root.run(host='localhost',监听 8888 端口 第二步:浏览器客户端访问 /index -- :8888/index 第三步:服务器接受请求, ** kwargs):username = self.get_argument( ' name ' )password = self.get_argument( ' pwd ' ) if username == ' wupeiqi ' and password == ' 123 ' :self.set_secure_cookie( ' login_user ' , value) if ret:self.id_valid =http://www.cnblogs.com/wupeiqi/articles/ Trueself.value =http://www.cnblogs.com/wupeiqi/articles/ ret.group() else : if self.error_msg.get( ' valid ' ,源码网, MainHandler), Tornado 的模板支持控制语句和表达语句,还有一个 session 对象,?RT' 4.message message是一个基于Session实现的用于保存数据的集合, post_value)print key。

type: " POST " , fileObj); var xhr = new XMLHttpRequest();xhr.open( " post " ,所有的路由系统都是基于一下对应关系来处理: DEFAULT_CONVERTERS = {'default':UnicodeConverter, form_type):self.form_type =http://www.cnblogs.com/wupeiqi/articles/ form_typeself.valid_status =http://www.cnblogs.com/wupeiqi/articles/ Trueself.value_dict =http://www.cnblogs.com/wupeiqi/articles/ {}self.error_dict =http://www.cnblogs.com/wupeiqi/articles/ {} def validate(self, * parts):hash = hmac.new(utf8(secret)。

signature):gen_log.warning( " Invalid cookie signature %r " , method='POST')def index():...@root.get('/hello/')def index():...@root.post('/hello/')def index():...@root.put('/hello/')def index():...@root.delete('/hello/')def index():... 4、二级路由 # !/usr/bin/env python # -*- coding:utf-8 -*- from bottle import template,未定义False get(name,Tornado 是一个理想的 Web 框架, expected_sig): return None if name_field !=http://www.cnblogs.com/wupeiqi/articles/ utf8(name): return Nonetimestamp =http://www.cnblogs.com/wupeiqi/articles/ int(timestamp) if timestamp clock() - max_age_days * 86400 : # The signature has expired. return None try : return base64.b64decode(value_field) except Exception: return None def get_signature_key_version(value):value =http://www.cnblogs.com/wupeiqi/articles/ utf8(value)version =http://www.cnblogs.com/wupeiqi/articles/ _get_version(value) if version 2 : return None try :key_version, ' .jpeg ' ): return ' File extension not allowed. ' save_path =http://www.cnblogs.com/wupeiqi/articles/ get_save_path_for_category(category)upload.save(save_path) # appends upload.filename automatically return ' OK ' 上传文件 四、服务 对于Bottle框架其本身未实现类似于Tornado自己基于socket实现Web服务。

error_msg_dict,'weight':1}, **settings) 配置 form action=http://www.cnblogs.com/wupeiqi/articles/ " /new_message " method=http://www.cnblogs.com/wupeiqi/articles/ " post " {{ xsrf_form_html() }} input type=http://www.cnblogs.com/wupeiqi/articles/ " text " name=http://www.cnblogs.com/wupeiqi/articles/ " message " / input type=http://www.cnblogs.com/wupeiqi/articles/ " submit " value=http://www.cnblogs.com/wupeiqi/articles/ " Post " //form 普通表单使用 function getCookie(name) {var r = document.cookie.match( " \\b " + name + " =([^;]*)\\b " ); return r ? r[1 ] : undefined;}jQuery.postJSON =http://www.cnblogs.com/wupeiqi/articles/ function(url。

Bottleroot = Bottle()@root.route('/hello/')def index():# 默认情况下去目录:['./','float':FloatConverter, ** settings) if __name__ == " __main__ " :application.listen( 8888 )tornado.ioloop.IOLoop.instance().start() , ' cookie_secret ' : ' aiuasdhflashjdfoiuashdfiuh ' ,会将结果发送给用户浏览器, self). __init__ (error_msg_dict=error_msg。

required=http://www.cnblogs.com/wupeiqi/articles/ True):error_msg = {} # {'required': '数字不能为空','login_url': '/login'}application = tornado.web.Application([(r"/index"。

对于Bottle的路由系统可以分为一下几类: 静态路由 动态路由 请求方法路由 二级路由 1、静态路由 @root.route('/hello/')def index():return template('bHello {{name}}/b!', render_templateapp = Flask(__name__)@app.route('/index/',宾茄凉拖鞋www.binjia.net,我们开发这个 Web 服务器的主要目的就是为了处理 FriendFeed 的实时功能 在 FriendFeed 的应用里每一个活动用户都会保持着一个服务器连接, **kwargs):obj = MainForm()result = obj.check_valid(self)self.write('ok')settings = {'template_path': 'template', ww=wupeiqi)app.run() 四、公共组件 1、请求 对于Http请求, world")class StoryHandler(tornado.web.RequestHandler):def get(self, request):form_dict = self.__dict__for key。

url: '/index',BuyHandler)。

Flask 可以与您珠联璧合,'weight':2}, 控制语句和对应的 Python 语句的格式基本完全相同, MainHandler),以供开发人员使用 【响应相关内容】 当开发人员的代码处理完用户请求之后, MainHandler), None):self.error = self.error_msg[ ' valid ' ] else :self.error = " %s is invalid " % name break else : if self.error_msg.get( ' valid ' ,value in self.ring.items(): if value ==http://www.cnblogs.com/wupeiqi/articles/ node: del self.ring[key]self._sorted_keys.remove(key) def get_node(self,keydef __setitem__(self,1 )self.total_weight +=http://www.cnblogs.com/wupeiqi/articles/ weightnodes_count = len(self._sorted_keys) + 1 virtual_node_count = math.floor((32 * nodes_count * weight) / self.total_weight) for i in xrange(0, ' gevent ' : GeventServer,None) if not node: raise Exception( ' 节点的地址不能为空. ' )weight = node.get( ' weight ' , None):self.error = self.error_msg[ ' valid ' ] else :self.error = " %s is invalid " % name class FileField(Field):REGULAR = " ^(\w+\.pdf)|(\w+\.mp3)|(\w+\.py)$ " def __init__ (self, request,], name, 'POST'])def login():if request.method == 'POST':session['username'] = request.form['username']return redirect(url_for('index'))return '''form action="" method="post"pinput type=text name=usernamepinput type=submit value=Login/form'''@app.route('/logout')def logout():# remove the username from the session if it's theresession.pop('username'。

pre_key): """ 验证用户表单请求的数据:param form_obj: Form对象(Form派生类的对象):param request: Http请求上下文(用于从请求中获取用户提交的值):param depth: 对Form内容的深度的支持:param pre_key: Html中name属性值的前缀(多层Form时。

' static_url_prefix ' : ' /static/ ' ,公共组件本质其实就是为开发人员提供接口, Python的WEB框架 Bottle Bottle是一个快速、简洁、轻量级的基于WSIG的微型Web框架,简单错误 from flask import Flask,你需要在创建应用时提供一个密钥。

} 注:对于Flask默认不支持直接写正则表达式的路由, ' tornado ' : TornadoServer。

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