将Ruby数组解析为JSON
我有一些结果：
puts result 看起来像这样的输出：
Allowed 20863963 1554906 Denied 3607325 0 Quarantined 156240 0
调试
p results
产量
[["Allowed", 20863963, 1554906], ["Denied", 3607325, 0], ["Quarantined", 156194, 0]]
标题是：
status,hits,page_views
我需要将其转换为json。 如果结果是标准的csv格式，那么它将是直截了当的，但如果结果格式如上所示，如何处理它？
预期输出与此类似：
[{"status":"Allowed","hits":"20863963","page_views":"1554906"},{"status":"Denied","hits":"3607325","page_views":"0"},{"status":"Quarantined","hits":"156240","page_views":"0"}]
解
a = result.map{|s| {status: s[0], hits: s[1].to_i, page_views: s[2].to_i} } puts a.to_json
output = "Allowed 20863963 1554906 Denied 3607325 0 Quarantined 156240 0" a = output.split("\n").each_slice(3).map{|s| {status: s[0], hits: s[1].to_i, page_views: s[2].to_i} } # => [{:status=>"Allowed", :hits=>20863963, :page_views=>1554906}, {:status=>"Denied", :hits=>3607325, :page_views=>0}, {:status=>"Quarantined", :hits=>156240, :page_views=>0}] a.to_json # => => "[{\"status\":\"Allowed\",\"hits\":20863963,\"page_views\":1554906},{\"status\":\"Denied\",\"hits\":3607325,\"page_views\":0},{\"status\":\"Quarantined\",\"hits\":156240,\"page_views\":0}]"
看看to_json方法。
require 'json' # => true h = {a: 1, b: 2,c: 3} # => {a: 1, b: 2,c: 3} h.to_json # => "{\"a\":1,\"b\":2,\"c\":3}"
您将“标题”分配给attr_accessor，然后告诉JSON解析该符号。 这是一个例子：
class Document attr_accessor :content def content metadata[:content] || metadata['content'] end def self.parse_contents txt = File.read(path, {mode: 'r:bom|utf-8'}) page = Document.new page.metadata = JSON.parse(txt) page.content = page.metadata['content'] return page end end
希望能帮助到你！