如何使用jQuery和JavaScript仅返回数据而不是HTML？

Question

I have the following javascript code in my app.

        $.get("/readers/intotoid/number",function(data,status){
            alert("Data: " + data + "\nStatus: " + status);
        });

For that url, my rails app does:

def convert
    @book = Book.find(1)
    params[:integer]
end

When I display the alert, I just want params[:integer] to show. Instad the entire html of the page /readers/intotoid/number displays. I thought by returning params[:integer] in the convert method, data would be equal to that. Any advice on how to do this?

Answer 1

将其添加到您的convert方法的底部：

render :text => params[:integer], :layout => false

Answer 2

I'm assuming that you want to return a Book as data.

Your convert method could return as json:

def convert
  @book = Book.find(1)
  respond_to do |format|
    format.json { render :json => @book }
  end
end

So you need either ask your convert method inside your controller that you want a response as json:

$.get("/readers/intotoid/number.json",function(data,status){
        alert("Data: " + data + "\nStatus: " + status);
    });

Answer 3

我不熟悉Rails，但是应该