已解决requests.exceptions.ConnectTimeout: HTTPConnectionPool(host=‘123.96.1.95‘, port=30090): Max retri

已解决requests.exceptions.ConnectTimeout: HTTPConnectionPool(host=‘123.96.1.95’, port=30090): Max retries exceeded with url: http://cdict.qq.pinyin.cn/list?cate_id=461&sort1_id=436&sort2_id=461&page=4 (Caused by ConnectTimeoutError(, ‘Connection to 123.96.1.95 timed out. (connect timeout=20)’))



文章目录

  • 报错代码
  • 报错翻译
  • 报错原因
  • 解决方法
  • 千人全栈VIP答疑群联系博主帮忙解决报错



报错代码

粉丝群一个小伙伴用requests.get爬取网页源码的时候报错(当时他心里瞬间凉了一大截,跑来找我求助,然后顺利帮助他解决了,顺便记录一下希望可以帮助到更多遇到这个bug不会解决的小伙伴),报错代码如下:

def get_url(url):
    """发送请求获取响应返回网页源码"""
    # 如果访问失败无限循环访问五次
    try:
        r = requests.get(url, headers=headers)
    except:
        time.sleep(120)
        for i in range(5):
            r = requests.get(url, headers=headers, timeout=20)
            if r.status_code == '200':
                break
            time.sleep(300)
    html_str = r.content.decode('utf8')

    return html_str

报错信息如下

requests.exceptions.ConnectTimeout: HTTPConnectionPool(host=‘123.96.1.95’, port=30090): Max retries exceeded with url: http://cdict.qq.pinyin.cn/list?cate_id=461&sort1_id=436&sort2_id=461&page=4 (Caused by ConnectTimeoutError(, ‘Connection to 123.96.1.95 timed out. (connect timeout=20)’))



报错翻译


报错信息翻译

请求.例外情况。连接超时:http连接池(主机=‘123.96.1.95’,端口=30090):超过url的最大重试次数:http://cdict.qq.pinyin.cn/list?cate_id=461&sort1_id=436&sort2_id=461&page=4(由连接超时报错(<0x00000204934C49A0处的urllib3.连接池.HTTP连接池对象>,‘到123.96.1.95的连接超时(连接超时=20’))引起)



报错原因


若分别指定连接和读取的超时时间,服务器在指定时间没有应答,抛出 requests.exceptions.ConnectTimeout

  • timeout=([连接超时时间], [读取超时时间])
  • 连接:客户端连接服务器并并发送http请求服务器
  • 读取:客户端等待服务器发送第一个字节之前的时间

小伙伴按下面的四种解决方法即可解决!!!

解决方法



第一种解决方法:循环抓错,重复请求

def get_url(url):
    try:
        response = requests.get(url, headers=headers, timeout=10)  # 超时设置为10秒
    except:
        for i in range(4):  # 循环去请求网站
            response = requests.get(url, headers=headers, timeout=20)
            if response.status_code == 200:
                break
    html_str = response.text
    return html_str

第二种解决方法:构建headers列表每次随机选一个

headers_list = [
    {
        'user-agent': 'Mozilla/5.0 (iPhone; CPU iPhone OS 13_2_3 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/13.0.3 Mobile/15E148 Safari/604.1'
    }, {
        'user-agent': 'Mozilla/5.0 (Linux; Android 8.0.0; SM-G955U Build/R16NW) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/87.0.4280.141 Mobile Safari/537.36'
    }, {
        'user-agent': 'Mozilla/5.0 (Linux; Android 10; SM-G981B) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/80.0.3987.162 Mobile Safari/537.36'
    }, {
        'user-agent': 'Mozilla/5.0 (iPad; CPU OS 13_3 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) CriOS/87.0.4280.77 Mobile/15E148 Safari/604.1'
    }, {
        'user-agent': 'Mozilla/5.0 (Linux; Android 8.0; Pixel 2 Build/OPD3.170816.012) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/102.0.0.0 Mobile Safari/537.36'
    }, {
        'user-agent': 'Mozilla/5.0 (Linux; Android) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/88.0.4324.109 Safari/537.36 CrKey/1.54.248666'
    }, {
        'user-agent': 'Mozilla/5.0 (X11; Linux aarch64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/88.0.4324.188 Safari/537.36 CrKey/1.54.250320'
    }, {
        'user-agent': 'Mozilla/5.0 (BB10; Touch) AppleWebKit/537.10+ (KHTML, like Gecko) Version/10.0.9.2372 Mobile Safari/537.10+'
    }, {
        'user-agent': 'Mozilla/5.0 (PlayBook; U; RIM Tablet OS 2.1.0; en-US) AppleWebKit/536.2+ (KHTML like Gecko) Version/7.2.1.0 Safari/536.2+'
    }, {
        'user-agent': 'Mozilla/5.0 (Linux; U; Android 4.3; en-us; SM-N900T Build/JSS15J) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30'
    }, {
        'user-agent': 'Mozilla/5.0 (Linux; U; Android 4.1; en-us; GT-N7100 Build/JRO03C) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30'
    }, {
        'user-agent': 'Mozilla/5.0 (Linux; U; Android 4.0; en-us; GT-I9300 Build/IMM76D) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30'
    }, {
        'user-agent': 'Mozilla/5.0 (Linux; Android 7.0; SM-G950U Build/NRD90M) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/62.0.3202.84 Mobile Safari/537.36'
    }, {
        'user-agent': 'Mozilla/5.0 (Linux; Android 8.0.0; SM-G965U Build/R16NW) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/63.0.3239.111 Mobile Safari/537.36'
    }, {
        'user-agent': 'Mozilla/5.0 (Linux; Android 8.1.0; SM-T837A) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/70.0.3538.80 Safari/537.36'
    }, {
        'user-agent': 'Mozilla/5.0 (Linux; U; en-us; KFAPWI Build/JDQ39) AppleWebKit/535.19 (KHTML, like Gecko) Silk/3.13 Safari/535.19 Silk-Accelerated=true'
    }, {
        'user-agent': 'Mozilla/5.0 (Linux; U; Android 4.4.2; en-us; LGMS323 Build/KOT49I.MS32310c) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/102.0.0.0 Mobile Safari/537.36'
    }, {
        'user-agent': 'Mozilla/5.0 (Windows Phone 10.0; Android 4.2.1; Microsoft; Lumia 550) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/46.0.2486.0 Mobile Safari/537.36 Edge/14.14263'
    }, {
        'user-agent': 'Mozilla/5.0 (Linux; Android 6.0.1; Moto G (4)) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/102.0.0.0 Mobile Safari/537.36'
    }, {
        'user-agent': 'Mozilla/5.0 (Linux; Android 6.0.1; Nexus 10 Build/MOB31T) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/102.0.0.0 Safari/537.36'
    }, {
        'user-agent': 'Mozilla/5.0 (Linux; Android 4.4.2; Nexus 4 Build/KOT49H) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/102.0.0.0 Mobile Safari/537.36'
    }, {
        'user-agent': 'Mozilla/5.0 (Linux; Android 6.0; Nexus 5 Build/MRA58N) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/102.0.0.0 Mobile Safari/537.36'
    }, {
        'user-agent': 'Mozilla/5.0 (Linux; Android 8.0.0; Nexus 5X Build/OPR4.170623.006) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/102.0.0.0 Mobile Safari/537.36'
    }, {
        'user-agent': 'Mozilla/5.0 (Linux; Android 7.1.1; Nexus 6 Build/N6F26U) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/102.0.0.0 Mobile Safari/537.36'
    }, {
        'user-agent': 'Mozilla/5.0 (Linux; Android 8.0.0; Nexus 6P Build/OPP3.170518.006) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/102.0.0.0 Mobile Safari/537.36'
    }, {
        'user-agent': 'Mozilla/5.0 (Linux; Android 6.0.1; Nexus 7 Build/MOB30X) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/102.0.0.0 Safari/537.36'
    }, {
        'user-agent': 'Mozilla/5.0 (compatible; MSIE 10.0; Windows Phone 8.0; Trident/6.0; IEMobile/10.0; ARM; Touch; NOKIA; Lumia 520)'
    }, {
        'user-agent': 'Mozilla/5.0 (MeeGo; NokiaN9) AppleWebKit/534.13 (KHTML, like Gecko) NokiaBrowser/8.5.0 Mobile Safari/534.13'
    }, {
        'user-agent': 'Mozilla/5.0 (Linux; Android 9; Pixel 3 Build/PQ1A.181105.017.A1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/66.0.3359.158 Mobile Safari/537.36'
    }, {
        'user-agent': 'Mozilla/5.0 (Linux; Android 10; Pixel 4) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/81.0.4044.138 Mobile Safari/537.36'
    }, {
        'user-agent': 'Mozilla/5.0 (Linux; Android 11; Pixel 3) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/88.0.4324.181 Mobile Safari/537.36'
    }, {
        'user-agent': 'Mozilla/5.0 (Linux; Android 5.0; SM-G900P Build/LRX21T) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/102.0.0.0 Mobile Safari/537.36'
    }, {
        'user-agent': 'Mozilla/5.0 (Linux; Android 8.0; Pixel 2 Build/OPD3.170816.012) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/102.0.0.0 Mobile Safari/537.36'
    }, {
        'user-agent': 'Mozilla/5.0 (Linux; Android 8.0.0; Pixel 2 XL Build/OPD1.170816.004) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/102.0.0.0 Mobile Safari/537.36'
    }, {
        'user-agent': 'Mozilla/5.0 (iPhone; CPU iPhone OS 10_3_1 like Mac OS X) AppleWebKit/603.1.30 (KHTML, like Gecko) Version/10.0 Mobile/14E304 Safari/602.1'
    }, {
        'user-agent': 'Mozilla/5.0 (iPhone; CPU iPhone OS 13_2_3 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/13.0.3 Mobile/15E148 Safari/604.1'
    }, {
        'user-agent': 'Mozilla/5.0 (iPad; CPU OS 11_0 like Mac OS X) AppleWebKit/604.1.34 (KHTML, like Gecko) Version/11.0 Mobile/15A5341f Safari/604.1'
    }
]

headers = random.choice(headers_list)

第三种方法解决方法:放慢请求速度

time.sleep(10)

第四种方法解决方法:代码设置代理(这里的代理ip需要自己购买,网上的免费代理都是不行的)

proxies = {
        'http': '127.0.0.1:1212',
        'https': '127.0.0.1:1212'
    }
r = requests.get(url, headers=headers, proxies=proxies, timeout=20)

以上是此问题报错原因的解决方法,欢迎评论区留言讨论是否能解决,如果有用欢迎点赞收藏文章谢谢支持,博主才有动力持续记录遇到的问题!!!

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