The process by which the browser sends a request to the server is the process of requesting, and the server responds to the browser as a response process.
2. A simple Web applicationImportSocketsock=Socket.socket () Sock.bind ("100.113.14.43",8080)) Sock.listen (5) with Open("Index.html","R") asF:# First write the style to the HTML file, and then read the Send to the browserContent=F.read () while True:Print("Server starting ...") Conn, addr=Sock.accept () data=CONN.RECV (1024x768)Print("Data:", data) Conn.send (("http/1.1 OK\r\n\r\n%s" %Content). Encode ("UTF8"))# HTTP protocol formatConn.close () Sock.close ()Index.html
<! DOCTYPE html> lang= Span class= "st" > "en" > <HEAD> charset= > span class= "kw" ><TITLE> title</TITLE> <BODY> <H1> Hello world</ H1> src= > </BODY> </HTML> Next, use your browser to access 100.113.14.43:8080
3. Request AgreementRequest format
Get vs. Post differences
Due to the limited URL length, there is a limit to the data size of the get commit, and there is no limit to post commit data size
Response agreement?Response format
Response Status Code
| type | cause | |
|---|---|---|
| 1XX | Information (information) | The request is being processed |
| 2XX | Success (Success) | Request Processing completed |
| 3XX | Redirection (redirected) | Additional action required to complete the request |
| 4XX | Client error (Clients errors) | The server cannot process the request |
| 5XX | Server error (server errors) | Server Processing Request Error |
fromWsgiref.simple_serverImportMake_serverdefAppliaction (environ, start_response):# Environ: Parsing data by HTTP protocol # Strat_response: Assemble data according to HTTP protocolPath=Environ.get ("Path_info") Start_response ("OK", []) with Open("Index.html","RB") asF:data1=F.read () with Open("Login.html","RB") asF:data2=F.read ()ifPath== "/index":return[Data1]elifPath== "/login":return[Data2]Else:return[b"]httpd=Make_server ("",8090, appliaction)Print("Server starting..")# Start listeningHttpd.serve_forever ()The path to learning in Python -2018/6/14
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