我正在尝试使用
Ruby on Rails在我的应用程序中添加Searchkick gem但是当我在搜索框中键入一个单词时,我的应用程序中出现此错误.我已根据需要安装了elasticsearch和最新版本的java,但错误仍然相同.这是我得到的错误:
Faraday::ConnectionFailed in PostsController#search
Connection refused – connect(2) for “localhost” port 9200
这是我的代码:
终奌站
Warning: elasticsearch-1.7.3 already installed
posts_controller.rb
class PostsController < ApplicationController before_action :set_post,only: [:show,:edit,:update,:destroy] def search if params[:search].present? @posts = Post.search(params[:search]) else @posts = Post.all end end # GET /posts # GET /posts.json def index @posts = Post.all end # GET /posts/1 # GET /posts/1.json def show end # GET /posts/new def new @post = Post.new end # GET /posts/1/edit def edit end # POST /posts # POST /posts.json def create @post = Post.new(post_params) respond_to do |format| if @post.save format.html { redirect_to @post,notice: 'Post was successfully created.' } format.json { render :show,status: :created,location: @post } else format.html { render :new } format.json { render json: @post.errors,status: :unprocessable_entity } end end end # PATCH/PUT /posts/1 # PATCH/PUT /posts/1.json def update respond_to do |format| if @post.update(post_params) format.html { redirect_to @post,notice: 'Post was successfully updated.' } format.json { render :show,status: :ok,location: @post } else format.html { render :edit } format.json { render json: @post.errors,status: :unprocessable_entity } end end end # DELETE /posts/1 # DELETE /posts/1.json def destroy @post.destroy respond_to do |format| format.html { redirect_to posts_url,notice: 'Post was successfully destroyed.' } format.json { head :no_content } end end private # Use callbacks to share common setup or constraints between actions. def set_post @post = Post.find(params[:id]) end # Never trust parameters from the scary internet,only allow the white list through. def post_params params.require(:post).permit(:name) end end
模型/ post.rb
class Post < ActiveRecord::Base searchkick end
视图/后/ index.html.erb
<p id="notice"><%= notice %></p> <%= form_tag search_posts_path,method: :get,class: "navbar-form navbar-right",role: "search" do %> <p> <%= text_field_tag :search,params[:search],class: "form-control" %> <%= submit_tag "Search",name: nil,class: "btn btn-default" %> </p> <% end %> <h1>Listing Posts</h1> <table> <thead> <tr> <th>Name</th> <th colspan="3"></th> </tr> </thead> <tbody> <% @posts.each do |post| %> <tr> <td><%= post.name %></td> <td><%= link_to 'Show',post %></td> <td><%= link_to 'Edit',edit_post_path(post) %></td> <td><%= link_to 'Destroy',post,method: :delete,data: { confirm: 'Are you sure?' } %></td> </tr> <% end %> </tbody> </table> <br> <%= link_to 'New Post',new_post_path %>
意见/ search.html.erb
<table> <thead> <tr> <th>Search Result</th> <th colspan="3"></th> </tr> </thead> <tbody> <% @posts.each do |post| %> <tr> <td><%= post.name %></td> <td><%= link_to 'Show',data: { confirm: 'Are you sure?' } %></td> </tr> <% end %> </tbody> </table>
配置/ routes.rb中
Rails.application.routes.draw do resources :posts do collection do get 'search' end end end
解决方法
Connection refused - connect(2) for "localhost" port 9200
看起来你的弹性搜索服务没有运行.你必须确保它正在运行.
要查看您的弹性搜索服务是否正在运行,请运行:
curl localhost:9200
如果它正在运行,那么它应该返回一个这样的哈希:
{ "status" : 200,"name" : "Buzz","cluster_name" : "your_cluster_name","version" : { "number" : "1.4.5","build_hash" : "...","build_timestamp" : "2015-04-27T08:06:06Z","build_snapshot" : false,"lucene_version" : "4.10.4" },"tagline" : "You KNow,for Search" }
如果弹性搜索未运行(您很可能就是这种情况),请使用以下命令启动它:
sudo service elasticsearch start
这应该可以解决你的问题.