python/test/test_request.py at master · eatyorcode/python · GitHub

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#!/usr/bin/env python

# encoding: utf-8

"""

@author: zhanghe

@software: PyCharm

@file: test_request.py

@time: 2017/4/26 上午9:55

"""

import requests

import time

def test_01():

"""

测试请求延时

request start : 2017-04-26 10:05:56

request response: 2017-04-26 10:06:06

process start:10:05:56

process end :10:06:06

:return:

"""

print 'request start :', time.strftime("%Y-%m-%d %H:%M:%S")

res = requests.get('http://0:8899')

print 'request response:', time.strftime("%Y-%m-%d %H:%M:%S")

print res

print res.text

def test_02():

"""

测试响应超时

request start : 2017-04-26 10:11:16

HTTPConnectionPool(host='0', port=8899): Read timed out. (read timeout=2)

request response: 2017-04-26 10:11:18

:return:

"""

print 'request start :', time.strftime("%Y-%m-%d %H:%M:%S")

try:

res = requests.get('http://0:8899', timeout=2)

print res

print res.text

except requests.exceptions.ReadTimeout as e:

print u'响应超时', e.message

print 'request response:', time.strftime("%Y-%m-%d %H:%M:%S")

def test_03():

"""

测试连接失败

request start : 2017-04-26 10:14:18

HTTPConnectionPool(host='0', port=9999): Max retries exceeded with url: / (Caused by NewConnectionError('<requests.packages.urllib3.connection.HTTPConnection object at 0x103e6f510>: Failed to establish a new connection: [Errno 61] Connection refused',))

request response: 2017-04-26 10:14:18

:return:

"""

print 'request start :', time.strftime("%Y-%m-%d %H:%M:%S")

try:

res = requests.get('http://0:9999')

print res

print res.text

# 连接错误

except requests.exceptions.ConnectionError as e:

print u'连接错误', e.message

# 响应超时

except requests.exceptions.ReadTimeout as e:

print u'响应超时', e.message

print 'request response:', time.strftime("%Y-%m-%d %H:%M:%S")

def test_04():

"""

测试连接成功，无响应

测试过程：

开启监听：nc -l 9900

测试请求

断开监听

测试结果：

request start : 2017-04-26 11:24:12

连接错误 ('Connection aborted.', error(54, 'Connection reset by peer'))

request response: 2017-04-26 11:24:18

:return:

"""

print 'request start :', time.strftime("%Y-%m-%d %H:%M:%S")

try:

res = requests.get('http://0:9900')

print res

print res.text

# 连接错误

except requests.exceptions.ConnectionError as e:

print u'连接错误', e.message

# 响应超时

except requests.exceptions.ReadTimeout as e:

print u'响应超时', e.message

print 'request response:', time.strftime("%Y-%m-%d %H:%M:%S")

def test_05():

"""

测试连接超时

request start : 2017-04-26 11:36:20

连接错误 HTTPConnectionPool(host='www.x.com', port=80): Max retries exceeded with url: / (Caused by ConnectTimeoutError(<requests.packages.urllib3.connection.HTTPConnection object at 0x1086d8750>, 'Connection to www.x.com timed out. (connect timeout=3)'))

request response: 2017-04-26 11:36:23

:return:

"""

print 'request start :', time.strftime("%Y-%m-%d %H:%M:%S")

try:

res = requests.get('http://www.x.com', timeout=(3, 5))

print res

print res.text

# 连接错误

except requests.exceptions.ConnectionError as e:

print u'连接错误', e.message

# 响应超时

except requests.exceptions.ReadTimeout as e:

print u'响应超时', e.message

print 'request response:', time.strftime("%Y-%m-%d %H:%M:%S")

def test_06():

"""

测试重试

测试结果：

request start : 2017-04-26 11:53:18

连接错误 HTTPConnectionPool(host='www.x.com', port=80): Max retries exceeded with url: / (Caused by ConnectTimeoutError(<requests.packages.urllib3.connection.HTTPConnection object at 0x107691ed0>, 'Connection to www.x.com timed out. (connect timeout=3)'))

request response: 2017-04-26 11:53:40

结果分析：

backoff_factor：超时补偿（默认值0）sleep seconds：{backoff factor} * (2 ^ ({number of total retries} - 1))

1、backoff_factor = 0.1

(5+1)*3 + (2**(1-1) + 2**(2-1) + 2**(3-1) + 2**(4-1) + 2**(5-1))*0.1

= 18 + 3.1

= 21.1

2、backoff_factor = 0

request start : 2017-04-26 12:51:44

连接错误 HTTPConnectionPool(host='www.x.com', port=80): Max retries exceeded with url: / (Caused by ConnectTimeoutError(<requests.packages.urllib3.connection.HTTPConnection object at 0x10bae0ed0>, 'Connection to www.x.com timed out. (connect timeout=3)'))

request response: 2017-04-26 12:52:02

(5+1)*3

= 18

:return:

"""

from requests.packages.urllib3.util.retry import Retry

from requests.adapters import HTTPAdapter

s = requests.Session()

retries = Retry(total=5,

backoff_factor=0.1,

status_forcelist=[500, 502, 503, 504])

s.mount('http://', HTTPAdapter(max_retries=retries))

s.mount('https://', HTTPAdapter(max_retries=retries))

print 'request start :', time.strftime("%Y-%m-%d %H:%M:%S")

try:

res = s.get('http://www.x.com', timeout=(3, 5))

print res

print res.text

# 连接错误

except requests.exceptions.ConnectionError as e:

print u'连接错误', e.message

# 响应超时

except requests.exceptions.ReadTimeout as e:

print u'响应超时', e.message

print 'request response:', time.strftime("%Y-%m-%d %H:%M:%S")

if __name__ == '__main__':

# test_01()

# test_02()

# test_03()

# test_04()

# test_05()

test_06()

"""

测试页面

index.php

<?php

ini_set('date.timezone','Asia/Shanghai');

//打印时间

echo "process start:".date('h:i:s')."\n";

//暂停 10 秒

sleep(10);

//打印时间

echo "process end :".date('h:i:s');

"""

开启临时服务

php -S 0:8899

"""

python/test/test_request.py at master · eatyorcode/python · GitHub

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