按照 alexce 的说明 here 安装了 docker、scrapyjs 和 splash。
然后，运行 docker run -p 8050:8050 scrapinghub/splash，我得到这个输出:
2016-05-08 17:17:45+0000 [-] Log opened.
2016-05-08 17:17:45.978866 [-] Splash version: 2.1
2016-05-08 17:17:45.979553 [-] Qt 5.5.1, PyQt 5.5.1, WebKit 538.1, sip 4.17, Twisted 16.1.1, Lua 5.2
2016-05-08 17:17:45.980138 [-] Python 3.4.3 (default, Oct 14 2015, 20:28:29) [GCC 4.8.4]
2016-05-08 17:17:45.980401 [-] Open files limit: 1048576
2016-05-08 17:17:45.981020 [-] Can't bump open files limit
2016-05-08 17:17:46.086232 [-] Xvfb is started: ['Xvfb', ':1', '-screen', '0', '1024x768x24']
2016-05-08 17:17:46.161902 [-] proxy profiles support is enabled, proxy profiles path: /etc/splash/proxy-profiles
2016-05-08 17:17:46.260357 [-] verbosity=1
2016-05-08 17:17:46.260607 [-] slots=50
2016-05-08 17:17:46.261170 [-] argument_cache_max_entries=500
2016-05-08 17:17:46.262476 [-] Web UI: enabled, Lua: enabled (sandbox: enabled)
2016-05-08 17:17:46.264565 [-] Site starting on 8050
2016-05-08 17:17:46.265203 [-] Starting factory <twisted.web.server.Site object at 0x7f270ec81e10>
它卡在那里。我尝试根据 here 说明(重新安装 docker、验证 vm 正在运行、重新生成证书、设置 env)进行故障排除，但仍然一无所获。
当在 yield scrapy.Request' 调用中没有 start_requests` 时，爬虫运行良好(除了动态字段不是已捕获)，所以我不确定这是 docker 还是 splash 的问题。meta= 参数的情况下运行爬虫
提前致谢。
请您参考如下方法:
当使用 Docker 运行 Splash 时，控制台一开始确实只是“卡在那里”。 Splash 正在等待通过其端点之一的请求。
$ sudo docker run -p 8050:8050 scrapinghub/splash
2016-05-09 10:21:42+0000 [-] Log opened.
2016-05-09 10:21:42.773541 [-] Splash version: 2.1
2016-05-09 10:21:42.774298 [-] Qt 5.5.1, PyQt 5.5.1, WebKit 538.1, sip 4.17, Twisted 16.1.1, Lua 5.2
2016-05-09 10:21:42.774453 [-] Python 3.4.3 (default, Oct 14 2015, 20:28:29) [GCC 4.8.4]
2016-05-09 10:21:42.774632 [-] Open files limit: 1048576
2016-05-09 10:21:42.774842 [-] Can't bump open files limit
2016-05-09 10:21:42.879868 [-] Xvfb is started: ['Xvfb', ':1', '-screen', '0', '1024x768x24']
2016-05-09 10:21:43.072351 [-] proxy profiles support is enabled, proxy profiles path: /etc/splash/proxy-profiles
2016-05-09 10:21:43.214478 [-] verbosity=1
2016-05-09 10:21:43.214617 [-] slots=50
2016-05-09 10:21:43.214703 [-] argument_cache_max_entries=500
2016-05-09 10:21:43.215195 [-] Web UI: enabled, Lua: enabled (sandbox: enabled)
2016-05-09 10:21:43.217494 [-] Site starting on 8050
2016-05-09 10:21:43.217635 [-] Starting factory <twisted.web.server.Site object at 0x7f529d0fee48>
要测试 Splash 是否正常运行，请在 http://localhost:8050/ 尝试其 Web UI
您应该会看到如下内容:
然后您可以尝试输入一些 URL 并单击“渲染我!”
