2.WSGI服务

# -*- coding:utf-8 -*-

from wsgiref.simple_server import make_server


def run_server(environ, start_response):
    print(environ)
    print(start_response)
    start_response("200 OK",[('Content-Type', 'text/html;charset=utf-8')])
    return [bytes('<h2 >欢迎来到我的博客</h2>', encoding="utf-8")]
s = make_server('localhost', 8000, run_server)
s.serve_forever()　

实现多个url

# -*- coding:utf-8 -*-
from wsgiref.simple_server import make_server

# 1.路由器的分发器，负责把url 匹配到对应的函数
# 2.开发好对应的业务函数
# 3.一个请求来了之后，先走路由分发器，如果找到对应的function，就执行，如果没找到返回 404


def book(environ, start_response):
    print("book page")
    start_response("200 OK", [('Content-Type', 'text/html;charset=utf-8')])
    return [bytes('<h2 >book page</h2>', encoding="utf-8")]


def cloth(environ, start_response):
    print("cloth page")
    start_response("200 OK", [('Content-Type', 'text/html;charset=utf-8')])
    return [bytes('<h2 style="color:red">cloth page</h2>', encoding="utf-8")]


def url_dispacher():
    urls = {
        '/book': book,
        '/cloth': cloth,
    }
    return urls


def run_server(environ, start_response):
    print(environ)
    print(start_response)
    url_list = url_dispacher()  # 拿到所有的url
    request_url = environ.get("PATH_INFO")
    print('request url', request_url)
    if request_url in url_list:
        func_data = url_list[request_url](environ, start_response)
        return func_data  # 真正返回给用户数据
    else:
        start_response("404 ", [('Content-Type', 'text/html;charset=utf-8')])
        return [bytes('<h2 style="font-size:5px">404,page not found</h2>', encoding="utf-8")]

        # start_response("200 OK",[('Content-Type', 'text/html;charset=utf-8')])
        # return [bytes('<h2 >欢迎来到我的博客</h2>', encoding="utf-8")]
s = make_server('localhost', 8000, run_server)
s.serve_forever()

图片的显示

图片目录

# -*- coding:utf-8 -*-
from wsgiref.simple_server import make_server
import os
import re
# 1.路由器的分发器，负责把url 匹配到对应的函数
# 2.开发好对应的业务函数
# 3.一个请求来了之后，先走路由分发器，如果找到对应的function，就执行，如果没找到返回 404
BASE_DIR = os.path.dirname(os.path.abspath(__file__))


def book(environ, start_response):
    print("book page")
    start_response("200 OK", [('Content-Type', 'text/html;charset=utf-8')])
    data = """
        <h1>程序员专区</h1>
        <img src = '/static/imgs/6.gif'>
        <p>小小程序员</p>
    """
    return [bytes(data, encoding="utf-8")]


def cloth(environ, start_response):
    print("cloth page")
    start_response("200 OK", [('Content-Type', 'text/html;charset=utf-8')])
    return [bytes('<h2 style="color:red">cloth page</h2>', encoding="utf-8")]


def url_dispacher():
    urls = {
        '/book': book,
        '/cloth': cloth,
    }
    return urls

def img_handler(request_url):
    """
    
    
    :param request_url: /static/imgs/6.gif
    :return: 
    """
    img_path = re.sub('/static', '/static_data',request_url)
    img_abs_path = "%s%s" %(BASE_DIR,img_path)
    print("Base", BASE_DIR)
    print(img_abs_path)
    if os.path.isfile(img_abs_path):
        print('-------- img exist .....')
        f = open(img_abs_path, 'rb')
        data = f.read()  # 读取图片
        return [data, 0]  # 0代表没错， 1代表 有错
    return [None, 1]


def run_server(environ, start_response):
    print(environ)
    print(start_response)
    url_list = url_dispacher()  # 拿到所有的url
    request_url = environ.get("PATH_INFO")
    print('request url', request_url)
    if request_url in url_list:
        func_data = url_list[request_url](environ, start_response)
        return func_data  # 真正返回给用户数据
    elif request_url.startswith('/static/'):
        img_data, img_status = img_handler(request_url)
        if img_status == 0:
            start_response("200 OK ", [('Content-Type', 'text/html;charset=utf-8')])
            return [img_data,]
    else:
        start_response("404 ", [('Content-Type', 'text/html;charset=utf-8')])
        return [bytes('<h2 style="font-size:5px">404,page not found</h2>', encoding="utf-8")]

        # start_response("200 OK",[('Content-Type', 'text/html;charset=utf-8')])
        # return [bytes('<h2 >欢迎来到我的博客</h2>', encoding="utf-8")]
s = make_server('localhost', 8000, run_server)
s.serve_forever()

socket服务

# -*- coding:utf-8 -*-
import socket


def main():
    sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
    sock.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
    sock.bind(('localhost', 8000))
    sock.listen(5)

    while True:
        # 等待浏览器访问
        conn, addr = sock.accept()
        # 接收浏览器发来的请求内容
        data = conn.recv(1024)
        print(data)
        # 给浏览器返回内容
        conn.send(b"HTTP/1.1.200 OK\r\nContent-Type:text/html; charset=utf-8\r\n\r\n")
        conn.send("<h2 >欢迎来到我的博客</h2>".encode('utf-8'))
        # 关闭浏览器
        conn.close()

if __name__ == '__main__':
    main()