blocks|key|1543640|text|使用OpenURI和|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|1543641|++open("http://...",+:http_basic_authentication=>[user,+password])|code-block|syntax|javascript|1543642|访问需要HTTP身份验证的站点/页面/资源。|1543643|entityMap|0|LINK|mutability|MUTABLE|url|http://www.ruby-doc.org/stdlib-1.9.3/libdoc/open-uri/rdoc/OpenURI.html^0|2|7|0|0|0|0^^$0|@$1|2|3|4|5|6|7|S|8|@]|9|@$A|T|B|U|1|V]]|C|$]]|$1|D|3|E|5|F|7|W|8|@]|9|@]|C|$G|H]]|$1|I|3|J|5|6|7|X|8|@]|9|@]|C|$]]|$1|K|3|-4|5|6|7|Y|8|@]|9|@]|C|$]]]|L|$M|$5|N|O|P|C|$Q|R]]]]

Use <a href="http://www.ruby-doc.org/stdlib-1.9.3/libdoc/open-uri/rdoc/OpenURI.html" rel="nofollow noreferrer">OpenURI</a> and

<pre><code> open("http://...", :http_basic_authentication=&gt;[user, password])
</code></pre>

accessing sites/pages/resources that require HTTP authentication.

blocks|key|1328311|text|Curb和Curl::Multi为Ruby提供了cURL绑定。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|1328312|entityMap|0|LINK|mutability|MUTABLE|url|https://taf2.github.io/curb/|1|https://github.com/kball/curl_multi.rb/^0|0|4|0|5|B|1|0^^$0|@$1|2|3|4|5|6|7|N|8|@]|9|@$A|O|B|P|1|Q]|$A|R|B|S|1|T]]|C|$]]|$1|D|3|-4|5|6|7|U|8|@]|9|@]|C|$]]]|E|$F|$5|G|H|I|C|$J|K]]|L|$5|G|H|I|C|$J|M]]]]

<a href="https://taf2.github.io/curb/" rel="nofollow noreferrer">Curb</a> and <a href="https://github.com/kball/curl_multi.rb/" rel="nofollow noreferrer">Curl::Multi</a> provide cURL bindings for Ruby.

blocks|key|1328429|text|如果你不喜欢它的低级，还有Typhoeus，它是构建在Curl::Multi之上的。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|1328430|entityMap|0|LINK|mutability|MUTABLE|url|https://github.com/typhoeus/typhoeus^0|D|8|0|0^^$0|@$1|2|3|4|5|6|7|L|8|@]|9|@$A|M|B|N|1|O]]|C|$]]|$1|D|3|-4|5|6|7|P|8|@]|9|@]|C|$]]]|E|$F|$5|G|H|I|C|$J|K]]]]

If you like it less low-level, there is also <a href="https://github.com/typhoeus/typhoeus" rel="noreferrer">Typhoeus</a>, which is built on top of Curl::Multi.

blocks|key|1543817|text|Curb-fu是一个围绕Curb的包装器，而Curb又使用libcurl。与Curb相比，Curb-fu提供了什么？只是在语法上加了很多糖--但这通常是你所需要的。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|1543818|entityMap|0|LINK|mutability|MUTABLE|url|http://github.com/gdi/curb-fu/tree/master^0|0|7|0|0^^$0|@$1|2|3|4|5|6|7|L|8|@]|9|@$A|M|B|N|1|O]]|C|$]]|$1|D|3|-4|5|6|7|P|8|@]|9|@]|C|$]]]|E|$F|$5|G|H|I|C|$J|K]]]]

<a href="http://github.com/gdi/curb-fu/tree/master" rel="noreferrer">Curb-fu</a> is a wrapper around Curb which in turn uses libcurl. What does Curb-fu offer over Curb? Just a lot of syntactic sugar - but that can be often what you need.

blocks|key|1543888|text|HTTP+clients是一个很好的页面，可以帮助你做出关于不同客户的决策。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|1543889|entityMap|0|LINK|mutability|MUTABLE|url|https://www.ruby-toolbox.com/categories/http_clients^0|0|C|0|0^^$0|@$1|2|3|4|5|6|7|L|8|@]|9|@$A|M|B|N|1|O]]|C|$]]|$1|D|3|-4|5|6|7|P|8|@]|9|@]|C|$]]]|E|$F|$5|G|H|I|C|$J|K]]]]

<a href="https://www.ruby-toolbox.com/categories/http_clients" rel="nofollow">HTTP clients</a> is a good page to help you make decisions about the various clients.

blocks|key|1328503|text|您还可以查看一下Rest-Client|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|1328504|entityMap|0|LINK|mutability|MUTABLE|url|https://github.com/rest-client/rest-client^0|8|B|0|0^^$0|@$1|2|3|4|5|6|7|L|8|@]|9|@$A|M|B|N|1|O]]|C|$]]|$1|D|3|-4|5|6|7|P|8|@]|9|@]|C|$]]]|E|$F|$5|G|H|I|C|$J|K]]]]

You might also have a look at <a href="https://github.com/rest-client/rest-client" rel="nofollow noreferrer">Rest-Client</a>

blocks|key|1328650|text|eat+gem是OpenURI的“替代品”：|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1328651|#+first+do+gem+install+eat
require+'eat'
eat('http://yahoo.com')+++++++++++++++++#=>+String
eat('/home/seamus/foo.txt')+++++++++++++#=>+String
eat('file:///home/seamus/foo.txt')++++++#=>+String|code-block|syntax|javascript|1328652|它在幕后使用HTTPClient。它也有一些选项：|1328653|eat('http://yahoo.com',+:timeout+=>+10)+++++++++++++++++++#+timeout+after+10+seconds
eat('http://yahoo.com',+:limit+=>+1024)+++++++++++++++++++#+only+read+the+first+1024+chars
eat('https://yahoo.com',+:openssl_verify_mode+=>+'none')++#+don't+bother+verifying+SSL+certificate|1328654|entityMap|0|LINK|mutability|MUTABLE|url|https://github.com/seamusabshere/eat|1|https://github.com/nahi/httpclient^0|0|3|0|3|0|0|0|6|A|1|0|0^^$0|@$1|2|3|4|5|6|7|Y|8|@$9|Z|A|10|B|C]]|D|@$9|11|A|12|1|13]]|E|$]]|$1|F|3|G|5|H|7|14|8|@]|D|@]|E|$I|J]]|$1|K|3|L|5|6|7|15|8|@]|D|@$9|16|A|17|1|18]]|E|$]]|$1|M|3|N|5|H|7|19|8|@]|D|@]|E|$I|J]]|$1|O|3|-4|5|6|7|1A|8|@]|D|@]|E|$]]]|P|$Q|$5|R|S|T|E|$U|V]]|W|$5|R|S|T|E|$U|X]]]]

the <a href="https://github.com/seamusabshere/eat" rel="nofollow"><code>eat</code></a> gem is a "replacement" for OpenURI:

<pre><code># first do gem install eat
require 'eat'
eat('http://yahoo.com') #=&gt; String
eat('/home/seamus/foo.txt') #=&gt; String
eat('file:///home/seamus/foo.txt') #=&gt; String
</code></pre>

It uses <a href="https://github.com/nahi/httpclient" rel="nofollow">HTTPClient</a> under the hood. It also has some options:

<pre><code>eat('http://yahoo.com', :timeout =&gt; 10) # timeout after 10 seconds
eat('http://yahoo.com', :limit =&gt; 1024) # only read the first 1024 chars
eat('https://yahoo.com', :openssl_verify_mode =&gt; 'none') # don't bother verifying SSL certificate
</code></pre>

blocks|key|1328727|text|如果您知道如何将请求编写为curl命令，有一个在线工具可以将其转换为2.0%2B代码：curl-to-ruby|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1328728|目前，它知道以下选项：-d/--data、-H/--header、-I/--head、-u/--user、--url和-X/--request。它是open+to+contributions。|1328729|entityMap|0|LINK|mutability|MUTABLE|url|https://jhawthorn.github.io/curl-to-ruby/|1|https://github.com/jhawthorn/curl-to-ruby^0|D|4|15|C|0|0|B|9|L|B|X|9|17|9|1H|5|1N|C|22|L|1|0^^$0|@$1|2|3|4|5|6|7|R|8|@$9|S|A|T|B|C]]|D|@$9|U|A|V|1|W]]|E|$]]|$1|F|3|G|5|6|7|X|8|@$9|Y|A|Z|B|C]|$9|10|A|11|B|C]|$9|12|A|13|B|C]|$9|14|A|15|B|C]|$9|16|A|17|B|C]|$9|18|A|19|B|C]]|D|@$9|1A|A|1B|1|1C]]|E|$]]|$1|H|3|-4|5|6|7|1D|8|@]|D|@]|E|$]]]|I|$J|$5|K|L|M|E|$N|O]]|P|$5|K|L|M|E|$N|Q]]]]

If you know how to write your request as a <code>curl</code> command, there is an online tool that can turn it into ruby (2.0+) code: <a href="https://jhawthorn.github.io/curl-to-ruby/" rel="noreferrer">curl-to-ruby</a>

Currently, it knows the following options: <code>-d/--data</code>, <code>-H/--header</code>, <code>-I/--head</code>, <code>-u/--user</code>, <code>--url</code>, and <code>-X/--request</code>. It is <a href="https://github.com/jhawthorn/curl-to-ruby" rel="noreferrer">open to contributions</a>.

blocks|key|1328482|text|还有Mechanize，这是一个非常高级的网页抓取客户端，它使用Nokogiri进行超文本标记语言的解析。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|1328483|entityMap|0|LINK|mutability|MUTABLE|url|http://mechanize.rubyforge.org/^0|2|9|0|0^^$0|@$1|2|3|4|5|6|7|L|8|@]|9|@$A|M|B|N|1|O]]|C|$]]|$1|D|3|-4|5|6|7|P|8|@]|9|@]|C|$]]]|E|$F|$5|G|H|I|C|$J|K]]]]

There's also <a href="http://mechanize.rubyforge.org/" rel="nofollow noreferrer">Mechanize</a>, which is a very high-level web scraping client, and uses Nokogiri for HTML parsing.

blocks|key|1328689|text|这是我写的一个小程序，用来获取一些文件。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1328690|base+=+"http://media.pragprog.com/titles/ruby3/code/samples/tutthreads_"

for+i+in+1..50

++url+=+"#{+base+}#{+i+}.rb"
++file+=+"tutthreads_#{i}.rb"

++File.open(file,+'w')+do+%7Cf%7C+++
++++system+"curl+-o+#{f.path}+#{url}"
++end

end|code-block|syntax|javascript|1328691|我知道这可能会更有说服力，但它已经达到了目的。看看这个。我今天只是把它拼凑在一起，因为我厌倦了去每个URL去获取书的代码，而这些代码没有包含在源代码下载中。|1328692|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|L|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|M|8|@]|9|@]|A|$]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

Here's a little program I wrote to get some files with.

<pre><code>base = "http://media.pragprog.com/titles/ruby3/code/samples/tutthreads_"

for i in 1..50

 url = "#{ base }#{ i }.rb"
 file = "tutthreads_#{i}.rb"

 File.open(file, 'w') do |f| 
 system "curl -o #{f.path} #{url}"
 end

end
</code></pre>

I know it could be a little more eloquent but it serves it purpose. Check it out. I just cobbled it together today because I got tired of going to each URL to get the code for the book that was not included in the source download.

blocks|key|1543861|text|添加一个更新的答案，HTTPClient是另一个使用libcurl的Ruby库，支持并行线程和许多curl好东西。我将HTTPClient和Typhoeus用于任何重要的应用程序。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|1543862|entityMap|0|LINK|mutability|MUTABLE|url|https://github.com/nahi/httpclient^0|A|A|0|0^^$0|@$1|2|3|4|5|6|7|L|8|@]|9|@$A|M|B|N|1|O]]|C|$]]|$1|D|3|-4|5|6|7|P|8|@]|9|@]|C|$]]]|E|$F|$5|G|H|I|C|$J|K]]]]

Adding a more recent answer, <a href="https://github.com/nahi/httpclient" rel="nofollow">HTTPClient</a> is another Ruby library that uses libcurl, supports parallel threads and lots of the curl goodies. I use HTTPClient and Typhoeus for any non-trivial apps.

blocks|key|1544016|text|为了说明可能过于明显的情况，勾号也可以在Ruby中执行shell代码。假设您的Ruby代码运行在包含curl的shell中|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1544017|puts+`curl+http://www.google.com?q=hello`|code-block|syntax|javascript|1544018|或|1544019|result+=+`
++curl+-X+POST+https://www.myurl.com/users+\
++-d+"name=pat"+\
++-d+"age=21"
`+
puts+result|1544020|entityMap^0|1E|4|0|0|0|0^^$0|@$1|2|3|4|5|6|7|Q|8|@$9|R|A|S|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|T|8|@]|D|@]|E|$I|J]]|$1|K|3|L|5|6|7|U|8|@]|D|@]|E|$]]|$1|M|3|N|5|H|7|V|8|@]|D|@]|E|$I|J]]|$1|O|3|-4|5|6|7|W|8|@]|D|@]|E|$]]]|P|$]]

To state the maybe-too-obvious, tick marks execute shell code in Ruby as well. Provided your Ruby code is running in a shell that has <code>curl</code>:

<pre><code>puts `curl http://www.google.com?q=hello`
</code></pre>

or

<pre><code>result = `
 curl -X POST https://www.myurl.com/users \
 -d "name=pat" \
 -d "age=21"
` 
puts result
</code></pre>

Is there a cURL library for Ruby?

问相当于Ruby的cURL？
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