Question

我们正在学习网络中的套接字，我们的任务是在Python中填写模板（老师使用Python2.x，而我使用的是Python3.x）。

    # Import socket module
from socket import *

# Create a TCP server socket
#(AF_INET is used for IPv4 protocols)
#(SOCK_STREAM is used for TCP)
serverSocket = socket(AF_INET, SOCK_STREAM)

# Assign a port number
serverPort = 6789

# Bind the socket to server address and server port
serverSocket.bind(('',serverPort))

# Listen to at most 1 connection at a time
serverSocket.listen(1) 

# Server should be up and running and listening to the incoming connections
while True:
    print ("Ready to serve...")

    # Set up a new connection from the client
    connectionSocket, addr = serverSocket.accept()

    # If an exception occurs during the execution of try clause
    # the rest of the clause is skipped
    # If the exception type matches the word after except
    # the except clause is executed
    try:
        # Receive the request message from the client
        message = connectionSocket.recv(4096).decode()
        # Extract the path of the requested object from the message
        # The path is the second part of HTTP header, identified by [1]
        filename = message.split()[1]
        # Because the extracted path of the HTTP request includes 
        # a character '\', we read the path from the second character 
        f = open(filename[1:])
        # Store the entire contenet of the requested file in a temporary buffer
        outputdata = f.read()
        # Send the HTTP response header line to the connection socket
        connectionSocket.send(("HTTP/1.1 200 OK \r\n").encode())

        # Send the content of the requested file to the connection socket
        for i in range(0, len(outputdata.encode())):  
            connectionSocket.send(outputdata.encode())  
        connectionSocket.send(("\r\n").encode()) 

        # Close the client connection socket
        connectionSocket.close()

        break

    except IOError:
        # Send HTTP response message for file not found
        connectionSocket.send(("HTTP/1.1 404 NOT FOUND\r\n").encode())
        connectionSocket.send(("<html><head></head><body><h1>ERROR. TRY AGAIN</h1></body></html>\r\n").encode())
        # Close the client connection socket
        connectionSocket.close()

        break

#Close the Socket
serverSocket.close()

我读入的文件是.htm文件：

<html><head><title>HTML Test File</title></head><body><h1>Trying to Get This Frickin' Program to Work</h1></body></html>

当我运行程序并输入：localhost：6789 / TestFile.htm时，它会反复打印文件内容并给出错误消息：第34行，indexerror：列表索引超出范围。 编辑：break处理错误消息，但文件仍在反复打印

我做错了什么？

编辑＃2：现在我正在尝试进行错误处理，但它只是声明当我输入一个不存在的文件时没有发送数据（即localhost：6789） /Test.htm）。如何获取要打印的错误消息？

Answer 1

  for i in range(0, len(outputdata.encode())):  
        connectionSocket.send(outputdata.encode())

此代码：

对文本进行两次编码
循环121次（这是您发布的文件的长度，编码为ASCII或UTF-8）
每次发送整个文件

如何获得＆＃34;除了＆＃34;引起？

1 个答案: