Scrapy + Splash = 连接被拒绝

Question

我使用这个 link 安装了 Splash .按照所有步骤进行安装，但 Splash 不起作用。

我的settings.py 文件:

BOT_NAME = 'Teste'
SPIDER_MODULES = ['Test.spiders']
NEWSPIDER_MODULE = 'Test.spiders'
DOWNLOADER_MIDDLEWARES = {
     'scrapy_splash.SplashCookiesMiddleware': 723,
     'scrapy_splash.SplashMiddleware': 725, 'scrapy.downloadermiddlewares.httpcompression.HttpCompressionMiddleware': 810,}
SPIDER_MIDDLEWARES = {
'scrapy_splash.SplashDeduplicateArgsMiddleware': 100,
}
SPLASH_URL = 'http://127.0.0.1:8050/'

当我运行 scrapy crawl TestSpider 时:

[scrapy.core.engine] INFO: Spider opened
[scrapy.extensions.logstats] INFO: Crawled 0 pages (at 0 pages/min), scraped 0 items (at 0 items/min)
[scrapy.downloadermiddlewares.retry] DEBUG: Retrying <GET http://www.google.com.br via http://127.0.0.1:8050/render.html> (failed 1 times): Connection was refused by other side: 111: Connection refused.
[scrapy.downloadermiddlewares.retry] DEBUG: Retrying <GET http://www.google.com.br via http://127.0.0.1:8050/render.html> (failed 2 times): Connection was refused by other side: 111: Connection refused.
[scrapy.downloadermiddlewares.retry] DEBUG: Gave up retrying <GET http://www.google.com.br via http://127.0.0.1:8050/render.html> (failed 3 times): Connection was refused by other side: 111: Connection refused.
[scrapy.core.scraper] ERROR: Error downloading <GET http://www.google.com.br via http://127.0.0.1:8050/render.html>
Traceback (most recent call last):
     File "/home/ricardo/scrapy/lib/python3.5/site-packages/twisted/internet/defer.py", line 1126, in _inlineCallbacks
result = result.throwExceptionIntoGenerator(g)
File "/home/ricardo/scrapy/lib/python3.5/site-packages/twisted/python/failure.py", line 389, in throwExceptionIntoGenerator
return g.throw(self.type, self.value, self.tb)
File "/home/ricardo/scrapy/lib/python3.5/site-packages/scrapy/core/downloader/middleware.py", line 43, in process_request 
defer.returnValue((yield 
download_func(request=request,spider=spider)))
twisted.internet.error.ConnectionRefusedError: Connection was refused 
by other side: 111: Connection refused.
[scrapy.core.engine] INFO: Closing spider (finished)
[scrapy.statscollectors] INFO: Dumping Scrapy stats:
{'downloader/exception_count': 3, 'downloader/exception_type_count/twisted.internet.error.ConnectionRefusedError': 3,
'downloader/request_bytes': 1476,
'downloader/request_count': 3,
'downloader/request_method_count/POST': 3,
'finish_reason': 'finished',
'finish_time': datetime.datetime(2017, 6, 29, 21, 36, 16, 72916),
'log_count/DEBUG': 3,
'log_count/ERROR': 1,
'log_count/INFO': 7,
'memusage/max': 47468544,
'memusage/startup': 47468544,
'retry/count': 2,
'retry/max_reached': 1,
'retry/reason_count/twisted.internet.error.ConnectionRefusedError': 2,
'scheduler/dequeued': 4,
'scheduler/dequeued/memory': 4,
'scheduler/enqueued': 4,
'scheduler/enqueued/memory': 4,
'splash/render.html/request_count': 1,
'start_time': datetime.datetime(2017, 6, 29, 21, 36, 15, 851593)}
[scrapy.core.engine] INFO: Spider closed (finished)

这是我的蜘蛛:

import scrapy
from scrapy_splash import SplashRequest

class TesteSpider(scrapy.Spider):
    name="Teste"

    def start_requests(self):
            yield SplashRequest("http://www.google.com.br", self.parse, meta={"splash": {"endpoint":"render.html",}})

    def parse(self, response):
            self.log('Hello World')

我尝试在终端中运行:curl http://localhost:8050/render.html?url=http://www.google.com/"

输出:

curl: (7) Failed to connect to localhost port 8050: Connection Refused

Answer 1

您需要通过命令行运行:

sudo docker run -p 8050:8050 scrapinghub/splash

和settings.py一样

SPLASH_URL = 'http://localhost:8050'