Question

我已经在python上编写了一个程序，如果单击了一个按钮，则在浏览器中打开一个html文件。不幸的是，文件可以在浏览器中通过nginx服务器在URL中输入而不是由程序打开。我得到以下错误：

urllib.error.URLError: <urlopen error no host given>

以下是我的文件：

GUI.py：

import tkinter as tk
import tkinter.ttk as ttk
import urllib.request as r


class MainWindow(ttk.Frame):
    def __init__(self, parent):
        self.parent = parent
        ttk.Frame.__init__(self, master=self.parent)
        self.parent.grab_set()
        self.parent.title("Test Data Tool")
        self.parent.geometry("500x500")
        ttk.Button(self.parent, text="Show HTML", command=self.show_html).pack()     

    def show_html(self):
        r.urlopen("localhost//my_html")

nginx.conf：

worker_processes  1;

events {
    worker_connections  1024;
}

http {
    include       mime.types;
    default_type  application/octet-stream;

    sendfile        on;
    keepalive_timeout  65;

    server {
        listen       80;
        server_name  localhost;

        location / {
            root html;
            index  index.html index.htm;
        }

        location /Home {
            alias D:/z003e42d;
            index test.html;
        }

        location /my_html {
            alias D:/z003e42d/location/of/myHtml;
            index My.html;

            # CORS config for nginx
            if ($request_method = 'OPTIONS') {
                add_header 'Access-Control-Allow-Origin' '*';
                add_header 'Access-Control-Allow-Methods' 'GET, POST, OPTIONS';
                #
                # Custom headers and headers various browsers *should* be OK with but aren't
                #
                add_header 'Access-Control-Allow-Headers' 'DNT,X-CustomHeader,Keep-Alive,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type,Content-Range,Range';
                #
                # Tell client that this pre-flight info is valid for 20 days
                #
                add_header 'Access-Control-Max-Age' 1728000;
                add_header 'Content-Type' 'text/plain; charset=utf-8';
                add_header 'Content-Length' 0;
                return 204;
            }
            if ($request_method = 'POST') {
                add_header 'Access-Control-Allow-Origin' '*';
                add_header 'Access-Control-Allow-Methods' 'GET, POST, OPTIONS';
                add_header 'Access-Control-Allow-Headers' 'DNT,X-CustomHeader,Keep-Alive,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type,Content-Range,Range';
                add_header 'Access-Control-Expose-Headers' 'DNT,X-CustomHeader,Keep-Alive,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type,Content-Range,Range';
            }
            if ($request_method = 'GET') {
                add_header 'Access-Control-Allow-Origin' '*';
                add_header 'Access-Control-Allow-Methods' 'GET, POST, OPTIONS';
                add_header 'Access-Control-Allow-Headers' 'DNT,X-CustomHeader,Keep-Alive,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type,Content-Range,Range';
                add_header 'Access-Control-Expose-Headers' 'DNT,X-CustomHeader,Keep-Alive,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type,Content-Range,Range';
            }
        }
        #error_page  404              /404.html;

        # redirect server error pages to the static page /50x.html
        #
        error_page   500 502 503 504  /50x.html;
        location = /50x.html {
            root   html;
        }
    }
}

也许我错过了nginx.config中的内容，但我不知道是什么。谢谢你的帮助。

Answer 1

这里有几个问题。

首先，"localhost//my_html"不是网址。您至少需要一个协议，并且您不希望斜杠。 "http://localhost/my_html"更像是它。

然而，这不会做你想要的。它将下载该文件，但它不会对它做任何事情;它当然不会为你“在浏览器中打开它”。

Answer 2

您的错误源于r.urlopen("localhost//my_html")。 urllib.request.urlopen的第一个参数应该是一个有效的URL。这意味着包含协议（http或https）的完整URL。

在python中打开html：urllib.error.URLError：<urlopen error =“”no =“”host =“”given =“”>

2 个答案: