刚刚入门rails，照着rails guide的代码敲，但是数据库，没问题，就是controller没办法传数据到view
代码如下

articles_controller.rb

 class ArticlesController < ApplicationController
      def new
      end

        def create
            @article = Article.new(article_params)

            @article.save
            redirect_to @article
        end

      private
        def article_params
          params.require(:article).permit(:title, :text)
        end

      def show
        @article = Article.find(params[:id])
      end

      def index
        @article = Article.all
      end


 end

show.html.erb

 <p>
  <strong>Title:</strong>
  <%= @article.title %>
</p>

<p>
  <strong>Text:</strong>
  <%= @article.text %>
</p>


但是却显示问题

NoMethodError in Articles#show

Showing /home/aljun/rubylearning/railstest/app/views/articles/show.html.erb where line #3 raised:

undefined method `title' for nil:NilClass

Extracted source (around line #3):

1
2
3
4
5
6

Title:

check

Rails.root: /home/aljun/rubylearning/railstest
Application Trace | Framework Trace | Full Trace

app/views/articles/show.html.erb:3:in `_app_views_articles_show_html_erb___3692144343305583486_70248134395300'

检查过数据库里面有数据，在rails的错误网页上用命令行写出过Article有数据的