Question

我有一个问题，我的python客户端正在向烧瓶服务器发送POST请求，并且它最初将更新服务器上的变量，但如果我将FOR循环引入客户端，它将永远不会更新。任何想法为什么？同样，如果我在客户端上删除for循环并手动运行它，它将每次更新服务器上的POST变量。您可以从输出中看到时间戳没有更新...我不知道为什么它会在没有for循环的情况下更新，除非它没有关闭会话？提前谢谢！

app.py

from flask import Flask, render_template, request
import os, csv
import sqlite3
from sqlalchemy.orm import sessionmaker
from tabledef import *
from tabledef2 import *
app = Flask(__name__)
@app.route('/', methods=['POST', 'GET'])
def home():
    conn = sqlite3.connect("client.db")
    c = conn.cursor()
    result = c.execute('SELECT * from clientdb')
    host_array = []
    for i in result:
        #print str(i).split("'")[1]
        host_array.append(str(i))
        #host_array.append(str(i).split("'")[1])
    return render_template('home1.html', message=host_array)

@app.route('/check', methods=['POST', 'GET'])
def check():
    try:
        host = request.form['hostname']
        ip = request.form['ip']
        ipex = request.form['ipex']
        timestamp = request.form['timestamp']
        code = request.form['code']
        print host, ip, ipex, timestamp, code
        return render_template('home1.html')
    except IOError or ValueError or IOError.errno as e:
        print "There was an error!"
        return render_template('home1.html', message=e)

if __name__ == "__main__":
    app.secret_key = os.urandom(12)
    app.run(host='x.x.x.x', port=7000)

client.py

import socket, requests
from time import strftime
import time
import urllib2
timestamp = strftime("%m-%d-%Y / %H:%M:%S")
hostname = socket.gethostname()
ip = socket.gethostbyname(hostname)
ipex = requests.get('https://api.ipify.org').text
while 1:
    time.sleep(3)
    try:
        URL = "http://10.1.1.33:7000/check"
        payload = {
            'hostname': "Server 1",
            'ip':  ip,
            'ipex': ipex,
            'timestamp': timestamp,
            'code': 10
        }
        session = requests.session()
        r = requests.post(URL, data=payload)
        #print r.cookies
     except socket.error:
        print ("Connection was refused, trying to reconnect...")

输出

* Running on http://10.1.1.33:7000/ (Press CTRL+C to quit)
Server 1 10.1.1.33 68.115.121.98 01-16-2017 / 12:14:08 10
10.1.1.33 - - [16/Jan/2017 12:14:11] "POST /check HTTP/1.1" 200 -
10.1.1.33 - - [16/Jan/2017 12:14:14] "POST /check HTTP/1.1" 200 -
Server 1 10.1.1.33 68.115.121.98 01-16-2017 / 12:14:08 10
10.1.1.33 - - [16/Jan/2017 12:14:17] "POST /check HTTP/1.1" 200 -
Server 1 10.1.1.33 68.115.121.98 01-16-2017 / 12:14:08 10
10.1.1.33 - - [16/Jan/2017 12:14:20] "POST /check HTTP/1.1" 200 -
Server 1 10.1.1.33 68.115.121.98 01-16-2017 / 12:14:08 10

Answer 1

这与Flask无关。

您的客户端每次都会发送相同的时间戳，因为您在循环外定义它并且永远不会更新它。在while循环中移动strftime调用。

Flask应用程序未在WHILE循环中从客户端收集更新的POST信息

1 个答案: