通过 Net::HTTP 在 Ruby 中发送 http post 请求
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Sending http post request in Ruby by Net::HTTP
提问by Alan Coromano
I'm sending a request with custom headers to a web service.
我正在向 Web 服务发送带有自定义标头的请求。
require 'uri'
require 'net/http'
uri = URI("https://api.site.com/api.dll")
https = Net::HTTP.new(uri.host, uri.port)
https.use_ssl = true
headers =
{
'HEADER1' => "VALUE1",
'HEADER2' => "HEADER2"
}
response = https.post(uri.path, headers)
puts response
It's not working, I'm receiving an error of:
它不起作用，我收到以下错误：
/usr/lib/ruby/1.9.1/net/http.rb:1932:in `send_request_with_body': undefined method `bytesize' for #<Hash:0x00000001b93a10> (NoMethodError)
How do I solve this?
我该如何解决这个问题？
P.S. Ruby 1.9.3
聚苯乙烯 Ruby 1.9.3
采纳答案by qqx
The second argument of Net::HTTP#postneeds to be a Stringcontaining the data to post (often form data), the headers would be in the optional third argument.
的第二个参数Net::HTTP#post需要String包含要发布的数据（通常是表单数据），标题将在可选的第三个参数中。
回答by Arun Kumar Arjunan
Try this:
尝试这个：
For detailed documentation, take a look at: http://www.rubyinside.com/nethttp-cheat-sheet-2940.html
有关详细文档，请查看：http: //www.rubyinside.com/nethttp-cheat-sheet-2940.html
require 'uri'
require 'net/http'
uri = URI('https://api.site.com/api.dll')
https = Net::HTTP.new(uri.host, uri.port)
https.use_ssl = true
request = Net::HTTP::Post.new(uri.path)
request['HEADER1'] = 'VALUE1'
request['HEADER2'] = 'VALUE2'
response = https.request(request)
puts response
回答by davegson
As qqx mentioned, the second argument of Net::HTTP#postneeds to be a String
正如 qqx 提到的，第二个参数Net::HTTP#post需要是一个String
Luckily there's a neat function that converts a hash into the required string:
幸运的是，有一个简洁的函数可以将散列转换为所需的字符串：
response = https.post(uri.path, URI.encode_www_form(headers))
