2

我有一个登录表单的页面。登录后有一些重定向。第一个看起来像这样：

#<Mechanize::File:0x1f4ff23 @filename="MYL.html", @code="200", @response={"cache-control"=>"no-cache=\"set-cookie\"", "content-length"=>"114", "set-cookie"=>"JSESSIONID=GdJnPVnhtN91KZfQPc3QzM1NLCyWDsnyvpGg8LL0Knnz3RgqxLFs!1803804592!-2134626567; path=/; secure, COOKIE_TEST=Aslyn; secure", "x-powered-by"=>"Servlet/2.4 JSP/2.0"}, @body="\r\n<html>\r\n  <head>\r\n    <meta http-equiv=\"refresh\" content=\"0;URL=MYL?Select=OK&StateName=38\">\r\n  </head>\r\n</html>", @uri=#<URI::HTTPS:0x16e1eff URL:https://www.manageyourloans.com/MYL?StateName=global_CALMLandingPage&GUID=D1704621-1994-E076-460A-10B2B682B960>>

所以当我在这里做一个 page.class 我得到

Mechanize::File

我如何将其转换为Mechanize::Page？

@pguardiario

为了更好地解释，我将原始消息中的代码存储在 page.

当我做 page.class 我得到 Mechanize::File

那么我执行上面的代码：

agent = Mechanize.new
agent.post_connect_hooks << lambda {|http| http[:response].content_type = 'text/html'}

所以我这样做：agent.get(page.uri.to_s) 或事件尝试使用任何 url agent.get(" https://www.manageyourloans.com/MYL ") 我收到一个错误：ArgumentError: wrong number of arguments （4对1）

我什至试过这个：

agent = Mechanize.new { |a|
  a.post_connect_hooks << lambda { |_,_,response,_|
    if response.content_type.nil? || response.content_type.empty?
      response.content_type = 'text/html'
    end
  }
}

我的问题是，一旦我这样做了，如何将上一页转换为 Mechanize::Page？

4

2 回答 2

3

您可以通过获取文件对象中包含的正文并将其作为新页面的正文传递，将 Mechanize::File 转换为 Mechanize::Page：

irb(main):001:0> require 'mechanize'
true
irb(main):002:0> file = Mechanize::File.new(URI.parse('http://foo.com'),nil,File.read('foo.html'))
#<Mechanize::File:0x100ef0190
    @full_path = false,
    attr_accessor :body = "<html><body>foo</body></html>\n",
    attr_accessor :code = nil,
    attr_accessor :filename = "index.html",
    attr_accessor :response = {},
    attr_accessor :uri = #<URI::HTTP:0x100ef02d0
        attr_accessor :fragment = nil,
        attr_accessor :host = "foo.com",
        attr_accessor :opaque = nil,
        attr_accessor :password = nil,
        attr_accessor :path = "",
        attr_accessor :port = 80,
        attr_accessor :query = nil,
        attr_accessor :registry = nil,
        attr_accessor :scheme = "http",
        attr_accessor :user = nil,
        attr_reader :parser = nil
    >
>

首先，我创建了一个假的 Mechanize::File 对象，只是为了有一个示例代码可以遵循。您可以在:body.

当 Mechanize 无法确定真正的内容类型是什么时，它会创建一个 Mechanize::File 对象。

irb(main):003:0> page = Mechanize::Page.new(URI.parse('http://foo.com'),nil,file.body)
#<Mechanize::Page:0x100ed5e30
    @full_path = false,
    @meta_content_type = nil,
    attr_accessor :body = "<html><body>foo</body></html>\n",
    attr_accessor :code = nil,
    attr_accessor :encoding = nil,
    attr_accessor :filename = "index.html",
    attr_accessor :mech = nil,
    attr_accessor :response = {
        "content-type" => "text/html"
    },
    attr_accessor :uri = #<URI::HTTP:0x100ed5ed0
        attr_accessor :fragment = nil,
        attr_accessor :host = "foo.com",
        attr_accessor :opaque = nil,
        attr_accessor :password = nil,
        attr_accessor :path = "",
        attr_accessor :port = 80,
        attr_accessor :query = nil,
        attr_accessor :registry = nil,
        attr_accessor :scheme = "http",
        attr_accessor :user = nil,
        attr_reader :parser = nil
    >,
    attr_reader :bases = nil,
    attr_reader :encodings = [
        [0] nil,
        [1] "US-ASCII"
    ],
    attr_reader :forms = nil,
    attr_reader :frames = nil,
    attr_reader :iframes = nil,
    attr_reader :labels = nil,
    attr_reader :labels_hash = nil,
    attr_reader :links = nil,
    attr_reader :meta_refresh = nil,
    attr_reader :parser = nil,
    attr_reader :title = nil
>
irb(main):004:0> page.class
Mechanize::Page < Mechanize::File

只需传入文件对象的主体，让 Mechanize 转换为您知道的应该是什么。

于 2012-04-23T21:58:44.783 回答
0

我喜欢@The Tin Man的回答，但强制响应的内容类型可能更简单：

agent.post_connect_hooks << lambda {|http| http[:response].content_type = 'text/html'}
于 2012-04-24T04:04:43.977 回答