https://ruby-china.org/tangjilong JEE,Ruby,Python,NodeJS,Linux en-us <p>想要把 Json 字符串直接存入 mongodb，但是报如下错误： <code>/home/tim-tang/.rvm/gems/ruby-1.9.2-p318@rails3.0.7/gems/mongo-1.6.2/lib/mongo/collection.rb:308:in</code>save': undefined method <code>has_key?' for #&lt;String:0x96ffc80&gt; (NoMethodError)</code></p> <p>具体代码如下： `#encoding:utf-8 require "crack" require "json" require "mongo"</p> <p>myXML = Crack::XML.parse(File.read("/home/tim-tang/OFBProductCategory1.xml")) myJSON = myXML.to_json puts myJSON</p> <p>connection = Mongo::Connection.new("localhost", 27017) db = connection.db("tim-db") coll = db.collection("products") coll.save(myJSON)`</p> <p>好像是无法产生_id，知道的请指点下，谢谢！ </p> tangjilong Tue, 22 May 2012 15:27:36 +0800 https://ruby-china.org/topics/3427 https://ruby-china.org/topics/3427 <p>最近想重构网站，各位麻烦介绍下，有什么好的解决办法？谢了！ </p> tangjilong Mon, 07 May 2012 11:07:47 +0800 https://ruby-china.org/topics/3123 https://ruby-china.org/topics/3123