在Rails中使用参数的Jquery Ajax POST请求(Ruby on Rails)

Question

我想在rails应用程序中发出ajax post请求.但我得到的回应是错误的.

Rails代码: -

def search_exams(myparam1 , myparam2)
   json_data = {:aaData=> [["abc","xyz","lmnop"],["sdf","adsdf","sadfsd"],["sdf","adsdf","sadfsd"]]}.to_json
   respond_to do |format|
     format.json { render :json => json_data }
   end
end

脚本代码: -

<%= javascript_tag "window._token = '#{form_authenticity_token}'" %>


<script>
$.ajax({
        url:'/home/search_exams',
        type:'POST',
        dataType:'json',
        data:{
            myparam1: "First Param value",
            myparam2: "Second param value",
            authenticity_token: window._token
        },
        success:function(data){
            debugger;
        },
        error:function(data){
            debugger;
        }
    });
  </script>

我收到这个错误: -

"HomeController中的ArgumentError#search_exams错误的参数数量(0表示2)Rails.root:C:/ Users/........"

Answer 1

def search_exams

从方法中删除参数.

当您将带有params的请求传递给Rails控制器时,中间件堆栈会将它们放params入哈希值,因此您将得到:

params[:param1]
params[:params2]

-

你还要考虑让你的JS 不引人注目:

#app/assets/javascripts/application.js
$(document).on("action", ".element", function(){
     $.ajax({
        url:'/home/search_exams',
        type:'POST',
        dataType:'json',
        data:{
            myparam1: "First Param value",
            myparam2: "Second param value",
            authenticity_token: window._token
        },
        success:function(data){
            debugger;
        },
        error:function(data){
            debugger;
        }
    });
});