我正在使用 Rails 4.2.7 和此代码通过 SOCKS 代理获取网页......
begin
…
res1 = Net::HTTP.SOCKSProxy('127.0.0.1', 50001).start(uri.host, uri.port) do |http|
puts "launching #{uri}"
resp = http.get(uri)
status = resp.code
content = resp.body
content_type = resp['content-type']
content_encoding = resp['content-encoding']
end
…
rescue OpenURI::HTTPError => ex
…
rescue SocketError, Net::OpenTimeout => e
…
有时,我会在“rest = http.get(uri)”行上收到错误
Error during processing: buffer error
/Users/mikeb/.rvm/rubies/ruby-2.3.0/lib/ruby/2.3.0/net/http/response.rb:364:in `finish'
/Users/mikeb/.rvm/rubies/ruby-2.3.0/lib/ruby/2.3.0/net/http/response.rb:364:in `finish'
/Users/mikeb/.rvm/rubies/ruby-2.3.0/lib/ruby/2.3.0/net/http/response.rb:266:in `ensure in inflater'
/Users/mikeb/.rvm/rubies/ruby-2.3.0/lib/ruby/2.3.0/net/http/response.rb:265:in `inflater'
/Users/mikeb/.rvm/rubies/ruby-2.3.0/lib/ruby/2.3.0/net/http/response.rb:281:in `read_body_0'
/Users/mikeb/.rvm/rubies/ruby-2.3.0/lib/ruby/2.3.0/net/http/response.rb:202:in `read_body'
/Users/mikeb/.rvm/rubies/ruby-2.3.0/lib/ruby/2.3.0/net/http.rb:1157:in `block in get'
/Users/mikeb/.rvm/rubies/ruby-2.3.0/lib/ruby/2.3.0/net/http.rb:1446:in `block in transport_request'
/Users/mikeb/.rvm/rubies/ruby-2.3.0/lib/ruby/2.3.0/net/http/response.rb:163:in `reading_body'
/Users/mikeb/.rvm/rubies/ruby-2.3.0/lib/ruby/2.3.0/net/http.rb:1445:in `transport_request'
/Users/mikeb/.rvm/rubies/ruby-2.3.0/lib/ruby/2.3.0/net/http.rb:1407:in `request'
/Users/mikeb/.rvm/rubies/ruby-2.3.0/lib/ruby/2.3.0/net/http.rb:1156:in `get'
/Users/mikeb/Documents/workspace/runtrax/app/helpers/webpage_helper.rb:99:in `block in get_content'
我如何捕捉这个错误?您可以在上面看到我捕获的错误类型,但我不知道如何捕获我遇到的特定错误。我的目的是如果发生此类错误,请重试。
总有
begin
…
res1 = Net::HTTP.SOCKSProxy('127.0.0.1', 50001).start(uri.host, uri.port) do |http|
puts "launching #{uri}"
resp = http.get(uri)
status = resp.code
content = resp.body
content_type = resp['content-type']
content_encoding = resp['content-encoding']
end
…
rescue OpenURI::HTTPError => ex
…
rescue SocketError, Net::OpenTimeout => e
…
rescue Zlib:BufError => e #
end
错误是从抛出的@inflate.finish
, where @inflate = Zlib::Inflate.new(32 + Zlib::MAX_WBITS)
。您可能需要要求 zlib 显式捕获错误,请参阅:如何在 Ruby on Rails 代码中捕获 Zlib::BufError? https://stackoverflow.com/questions/32870168/how-can-i-catch-zlibbuferror-in-my-ruby-on-rails-code
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