ruby-on-rails – 处理超时错误

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使用超时后:
  1. status = Timeout::timeout(5) {
  2. # Something that should be interrupted if it takes too much time...
  3. }

我有超时错误

  1. /Users/galharth/.rvm/rubies/ruby-1.9.2-p136/lib/ruby/1.9.1/net/http.rb:644:in `initialize': execution expired (Timeout::Error)
  2. from /Users/galharth/.rvm/rubies/ruby-1.9.2-p136/lib/ruby/1.9.1/net/http.rb:644:in `open'
  3. from /Users/galharth/.rvm/rubies/ruby-1.9.2-p136/lib/ruby/1.9.1/net/http.rb:644:in `block in connect'
  4. from /Users/galharth/.rvm/rubies/ruby-1.9.2-p136/lib/ruby/1.9.1/timeout.rb:44:in `timeout'
  5. from /Users/galharth/.rvm/rubies/ruby-1.9.2-p136/lib/ruby/1.9.1/timeout.rb:87:in `timeout'
  6. from /Users/galharth/.rvm/rubies/ruby-1.9.2-p136/lib/ruby/1.9.1/net/http.rb:644:in `connect'
  7. from /Users/galharth/.rvm/rubies/ruby-1.9.2-p136/lib/ruby/1.9.1/net/http.rb:637:in `do_start'
  8. from /Users/galharth/.rvm/rubies/ruby-1.9.2-p136/lib/ruby/1.9.1/net/http.rb:632:in `start'
  9. from /Users/galharth/.rvm/gems/ruby-1.9.2-p136/gems/mechanize-1.0.0/lib/mechanize.rb:527:in `fetch_page'
  10. from /Users/galharth/.rvm/gems/ruby-1.9.2-p136/gems/mechanize-1.0.0/lib/mechanize.rb:259:in `get'

我该怎么办?

解决方法

那么这是 Timeout的预期行为.如果块花费的时间太长,它的执行将被终止并引发异常.

你可能想要捕获异常并适当地处理它:

  1. require 'timeout'
  2. begin
  3. status = Timeout::timeout(5) {
  4. # Something that should be interrupted if it takes too much time...
  5. }
  6. rescue Timeout::Error
  7. puts 'That took too long,exiting...'
  8. end

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