我一直在使用StormCrawler来抓取网站。作为https协议(protocol)，我在StormCrawler中设置了默认的https协议(protocol)。但是，当我抓取一些网站时，我收到以下异常:
Caused by: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
at sun.security.provider.certpath.SunCertPathBuilder.build(SunCertPathBuilder.java:141) ~[?:1.8.0_131]
at sun.security.provider.certpath.SunCertPathBuilder.engineBuild(SunCertPathBuilder.java:126) ~[?:1.8.0_131]
at java.security.cert.CertPathBuilder.build(CertPathBuilder.java:280) ~[?:1.8.0_131]
at sun.security.validator.PKIXValidator.doBuild(PKIXValidator.java:382) ~[?:1.8.0_131]
at sun.security.validator.PKIXValidator.engineValidate(PKIXValidator.java:292) ~[?:1.8.0_131]
at sun.security.validator.Validator.validate(Validator.java:260) ~[?:1.8.0_131]
at sun.security.ssl.X509TrustManagerImpl.validate(X509TrustManagerImpl.java:324) ~[?:1.8.0_131]
at sun.security.ssl.X509TrustManagerImpl.checkTrusted(X509TrustManagerImpl.java:229) ~[?:1.8.0_131]
at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(X509TrustManagerImpl.java:124) ~[?:1.8.0_131]
at sun.security.ssl.ClientHandshaker.serverCertificate(ClientHandshaker.java:1496) ~[?:1.8.0_131]
... 20 more
是否有自动下载证书和设置爬虫的机制以及如何设置爬虫的配置？
最佳答案
此问题并非 StormCrawler 特有。 This answer解释说您可以手动导入证书，这并不是一个真正的选择，除非您专门爬行该网站。另一种选择是禁用证书验证。这需要修改协议(protocol)实现，但应该是可行的。
您尝试过 OKHttp 实现吗？它的行为可能与 Apache HttClient 不同。请参阅okhttp wiki .
关于java - 使用 StormCrawler 抓取某些 url 时出现 X509 证书异常，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/49399561/