rails 自己定时间，抛出时间异常

最新推荐文章于 2025-07-24 13:12:32 发布

brown_zyn

最新推荐文章于 2025-07-24 13:12:32 发布

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分类专栏： ruby on rails ruby

本文链接：https://blog.youkuaiyun.com/zyn_zyn_zyn/article/details/84121976

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本文介绍了使用Ruby进行网络请求时如何处理超时情况，包括基本的超时异常捕获、自定义超时时间和针对HTTP请求的具体实现。

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1.抛出时间异常

begin     
     resp, body=3Dh.get('/index.html')     
     puts body     
rescue Timeout::Error => e 
       puts "Timed Out"     
end

2.自己定时间，抛出时间异常

require 'timeout'
...
...
...
begin     
  timeout(60) do     
     resp, body=3Dh.get('/index.html')     
     puts body     
  end     
rescue TimeoutError     
       puts "Timed Out"     
end

3.http请求时，抛出时间异常

require 'net/http'
require 'net/https'
#Usage: username pass urlStr time_out
#

    urlStr = 'http://localhost:3000/cron/cron'
    username = "badname"
    pass = "badpass"
    time_out = 60

    if ARGV[3] != nil
     time_out = ARGV[3].to_i
    end

    if ARGV[2] != nil
     urlStr = ARGV[2]
    end
    
    if ARGV[1] != nil and ARGV[0] != nil
     username = ARGV[0]
     pass = ARGV[1]
    end
    puts urlStr + " user: "+username
    
    url = URI.parse(urlStr)
    use_ssl = url.scheme == 'https'
    req = Net::HTTP::Get.new url.path
    req.basic_auth username, pass
 
    http = Net::HTTP.new(url.host, url.port)
    http.read_timeout=time_out
    if use_ssl
      http.use_ssl = true
    end
    res = http.start { |web| 
      web.request(req) 
    }
    
    puts res.body