RSolr::Error::ConnectionRefused: Connection refused - {:data=>"<?xml version=\"1.0\" encoding=\"UTF-8\"?>type:Post", :headers=>{"Content-Type"=>"text/xml"}, :method=>:post, :params=>{:wt=>:ruby}, :query=>"wt=ruby", :path=>"update", :uri=>#, :open_timeout=>nil, :read_timeout=>nil, :retry_503=>nil, :retry_after_limit=>nil} 一直爆这个链接错误。拒绝链接