如何在没有Rhosync或RhoConnect的情况下使用Rhodes

Question

我知道我们可以在没有 Rhosync 的情况下使用 rhodes 同步数据，或者通过使用直接 Web 服务来同步 Rhoconnect，但我在这里有点困惑在哪里放置用于 Web 服务调用的代码以及如何初始化它。谁能帮我举个小例子？

提前谢谢。

Answer 1

我明白了，它对我有用。

class ProductController < Rho::RhoController
  include BrowserHelper
    # GET /product
  def index
    response =  Rho::AsyncHttp.get(:url => "example.com/products.json",
     :headers => {"Content-Type" => "application/json"})
     @result = response["body"] 
    render :back => '/app'
  end
    # GET /product/{1}
  def show
    id =@params['id']
    response =  Rho::AsyncHttp.get(:url => "example.com/products/"+ id +".json",
    :headers => {"Content-Type" => "application/json"})
    @result = response["body"]
  end
   # GET /product/new
  def new
    @product = product.new
    render :action => :new, :back => url_for(:action => :index)
  end
    # GET /product/{1}/edit
  def edit
    id =@params['product_id'].to_s
    response =  Rho::AsyncHttp.get(:url => "example.com/products/#{id}.json",
    :headers => {"Content-Type" => "application/json"})
    @result = response["body"]
  end
    # POST /product/create
  def create
    name = @params['product']['name']
    price = @params['product']['price']
    body = '{"product" : {"name" : "'+ name +'","price" :"'+ price +'"  } }'
    @result =  Rho::AsyncHttp.post(:url => "example.com/products.json",
    :body => body, :http_command => "POST", :headers => {"Content-Type" => "application/json"})  
    redirect :action => :index
  end
    # POST /product/{1}/update
  def update
    name=@params['product']['name']
    price=@params['product']['price']
    body = '{"product" : {"name" : "' + name + '","price" :"' + price + '"  } }'
    id = @params["product_id"].to_s
    response =  Rho::AsyncHttp.post(:url => "example.com/products/#{id}.json",
    :body => body, :http_command => "PUT",:headers => {"Content-Type" => "application/json"})
    redirect :action => :index
  end
    # POST /product/{1}/delete
  def delete
    id = @params["product_id"].to_s
    response =  Rho::AsyncHttp.post(:url => "example.com/products/#{id}.json",
    :http_command => "DELETE", 
    :headers => {"Content-Type" => "application/json"})  
    redirect :action => :index  
  end
end

Answer 2

最简单的 http 服务器请求形式是：

Rho::AsyncHttp.get(
  :url => "http://www.example.com",
  :callback => (url_for :action => :httpget_callback)
)

其中httpget_callback是控制器回调方法的名称。

有关更多详细信息，请参阅官方 Rhodes 文档。