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rails new my_api --api
这会做三件事:
ApplicationController继承ActionController::API而不是继承ActionController::Base。def show @post = Post.find(params[:id]) if stale?(last_modified: @post.updated_at, public: true) render json: @post endendX-Sendfile。Rack::Sendfile来负责发送文件。# Apache and lighttpd
config.action_dispatch.x_sendfile_header = "X-Sendfile" # Nginx config.action_dispatch.x_sendfile_header = "X-Accel-Redirect"
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原文地址:http://www.cnblogs.com/limx/p/5699453.html