"500内部服务器错误"；尝试从flask应用程序创建.cgi应用程序时收到

问题描述

我使用以下代码在python中创建了以下Flask应用程序(名为 simpleflask.py ):

I have created the following Flask application in python (named simpleflask.py), using the code below:

from flask import Flask
import random

app = Flask(__name__)
app.secret_key = 'This is really unique and secret'

@app.route('/')
def index():
    a = random.randrange(2)
    if a == 1:
        return "<p>the random number selector returned 1</p>"
    else:
        return "<p>the random number selector returned 0</p>"

if __name__ == "__main__":
    app.run()

Flask应用程序可以在我的个人计算机上正常运行.

The Flask app runs fine from my personal computer.

然后，我尝试使用 Flask文档中提供的说明创建.cgi应用程序，其中包含以下代码:

I then tried to create a .cgi application using the instructions provided in the Flask documentation, which features the following code:

from wsgiref.handlers import CGIHandler
from simpleflask import app

CGIHandler().run(app)

但是，它不能按预期方式工作.我不断收到以下错误消息:

However, it does not work as expected. I keep receiving the following error message:

KeyError: 'SERVER_NAME'
Status: 500 Internal Server Error
Content-Type: text/plain
Content-Length: 59

A server error occurred.  Please contact the administrator.

我不太确定这是什么意思.知道为什么我会收到此错误吗?为了能够创建我的.cgi应用程序，我必须进行哪些更改?任何建议都欢迎.

I am not quite sure what this is supposed to mean. Any idea why I am receiving this error? What changes would I have to make to be able to create my .cgi application? Any and all suggestions welcome.

推荐答案

您的cgi脚本必须首先编写标头.至少是内容类型":

Your cgi-script has to write firstly headers. At least 'content-type':

Content-Type: text/html;

，后跟空白行.然后浏览您的内容.

with empty line after it.And then goes your content.

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