我是Rails和Web开发的新手.
我在Matlab中生成了一堆对象,我想将这些对象发送到我的Rails应用程序中的数据库.谁能告诉我如何做到这一点?
到目前为止,在Rails端,我已经为我的数据生成了基本的脚手架.我可以使用’/ myobjects / new’中的表单将对象添加到我的数据库中.
在Matlab端,我一直在尝试使用HTTP POST请求添加对象,如下所示:
s = urlread('http://localhost:3000/myobjects.json','POST',{'myobject','{name1:''value1''}'})
这会失败并将以下内容打印到Rails控制台:
Started POST "/myobjects.json" for 127.0.0.1 at 2012-06-16 11:48:28 -0400 Processing by MyobjectsController#create as JSON Parameters: {"myobject"=>"{name1:'value1'}"} WARNING: Can't verify CSRF token authenticity Completed 500 Internal Server Error in 1ms NoMethodError (undefined method `stringify_keys' for "{name1:'value1'}":String): app/controllers/myobjects_controller.rb:43:in `new' app/controllers/myobjects_controller.rb:43:in `create'
这种方法可能会偏离基础,但希望上面的代码能够明确我的目标.谁能告诉我如何修复我的代码,或者建议一个更好的策略来将我的数据导入rails?
编辑
目前我的new和create方法看起来像这样(但我可以根据需要更改它们)
# GET /irs/new # GET /irs/new.json def new @ir = Ir.new respond_to do |format| format.html # new.html.erb format.json { render json: @ir } end end # POST /irs # POST /irs.json def create @ir = Ir.new(params[:ir]) respond_to do |format| if @ir.save format.html { redirect_to @ir,notice: 'Ir was successfully created.' } format.json { render json: @ir,status: :created,location: @ir } else format.html { render action: "new" } format.json { render json: @ir.errors,status: :unprocessable_entity } end end end
解决方法
最后,我放弃了尝试用matlab的内置函数做到这一点.相反,我导入了一个Java库(
Apache HttpComponents).这是我提出的脚本.这样做了.
javaaddpath(['utils/httpcomponents-client-4.2/lib/httpcore-4.2.jar']); javaaddpath(['utils/httpcomponents-client-4.2/lib/httpclient-4.2.jar']); import org.apache.http.impl.client.DefaultHttpClient import org.apache.http.client.methods.HttpPost import org.apache.http.entity.StringEntity httpclient = DefaultHttpClient(); httppost = HttpPost('http://127.0.0.1:3000/myobjects.json'); httppost.addHeader('Content-Type','application/json'); httppost.addHeader('Accept','application/json'); params = StringEntity('{"field1":"value1"}'); httppost.setEntity(params); response = httpclient.execute(httppost);