修改redis-store中的http缓存方式

Author: wy-ruby

app/views/static_pages/_static_page.json.jbuilder

@@ -1,2 +1,3 @@
-# json.array! @users, partial: 'users/user', as: :user
-json.content format_content(@message.content)
+# binding.pry
+json.array! @users, partial: 'users/user', as: :user
+# json.content format_content(@message.content)

app/views/static_pages/index.json.jbuilder

@@ -13,7 +13,7 @@
   config.consider_all_requests_local = true
 
   # Enable/disable caching. By default caching is disabled.
-  # Run rails dev:cache to toggle caching.
+  # 运行命令： rails dev:cache 可以开启文件缓存。
   if Rails.root.join('tmp', 'caching-dev.txt').exist?
     config.action_controller.perform_caching = true
 
@@ -24,13 +24,19 @@
   else
     config.action_controller.perform_caching = true
     # config.cache_store = :null_store
-    config.cache_store = :redis_cache_store, CACHE_REDIS_CONFIG.merge({namespace: 'cache', compress: true, expires_in: 10.minutes})
+    # config.cache_store = :redis_cache_store, CACHE_REDIS_CONFIG.merge({namespace: 'cache', compress: true, expires_in: 10.minutes})
+    config.cache_store = :redis_store, "redis://localhost:6379/2/cache", { expires_in: 90.minutes }
+    # config.cache_store = :redis_cache_store, {driver: :hiredis, namespace: 'cache', compress: true,
+    #                                           timeout: 1, url: "redis://127.0.0.1:6379/2"}
   end
 
   # 配置http缓存
+  redis_password = CACHE_REDIS_CONFIG[:password].present? ? ":#{CACHE_REDIS_CONFIG[:password]}@": ""
+  metastore_redis_config = "redis://#{redis_password}#{CACHE_REDIS_CONFIG[:host]}:#{CACHE_REDIS_CONFIG[:port]}/#{CACHE_REDIS_CONFIG[:db]}/metastore"
+  entitystore_redis_config = "redis://#{redis_password}#{CACHE_REDIS_CONFIG[:host]}:#{CACHE_REDIS_CONFIG[:port]}/#{CACHE_REDIS_CONFIG[:db]}/entitystore"
   config.action_dispatch.rack_cache = {
-    metastore: CACHE_REDIS_CONFIG.merge({namespace: 'metastore'}),
-    entitystore: CACHE_REDIS_CONFIG.merge({namespace: 'entitystore'})
+    metastore: metastore_redis_config,
+    entitystore: entitystore_redis_config
   }
 
   # Store uploaded files on the local file system (see config/storage.yml for options)

app/views/static_pages/show.json.jbuilder

@@ -76,9 +76,12 @@
   config.cache_store = :redis_cache_store, CACHE_REDIS_CONFIG.merge({namespace: 'cache', compress: true})
 
   # 配置http缓存
+  redis_password = CACHE_REDIS_CONFIG[:password].present? ? ":#{CACHE_REDIS_CONFIG[:password]}@": ""
+  metastore_redis_config = "redis://#{redis_password}#{CACHE_REDIS_CONFIG[:host]}:#{CACHE_REDIS_CONFIG[:port]}/#{CACHE_REDIS_CONFIG[:db]}/metastore"
+  entitystore_redis_config = "redis://#{redis_password}#{CACHE_REDIS_CONFIG[:host]}:#{CACHE_REDIS_CONFIG[:port]}/#{CACHE_REDIS_CONFIG[:db]}/entitystore"
   config.action_dispatch.rack_cache = {
-    metastore: CACHE_REDIS_CONFIG.merge({namespace: 'metastore'}),
-    entitystore: CACHE_REDIS_CONFIG.merge({namespace: 'entitystore'})
+      metastore: metastore_redis_config,
+      entitystore: entitystore_redis_config
   }
 
   # Use a real queuing backend for Active Job (and separate queues per environment)

app/views/users/index.json.jbuilder

@@ -20,7 +20,14 @@ create  app/views/tests/_test.json.jbuilder
 ```ruby
 rails g jbuilder Test name:string
 ```
-就可以在_test.json.jbuilder文件中看到有name字段的展现了。   
+就可以在_test.json.jbuilder文件中看到有name字段的展现了。    
+
+请求访问数据，可以在路由后面加上.json，例如访问
+```html
+http://localhost:3000/users.json 
+http://localhost:3000/users/1.json  
+```
+
 定义数组并从对象中提取属性放入该数组中：
 ```ruby
 # @people = People.all
@@ -32,7 +39,21 @@ json.array! @users do |item|
   json.name item.name
 end
 # => [{"id":1, "name":"wangyun"}]
+ 
+# 提取方法对象里面的属性 
+json.extract! @users, :id, :name, :email, :age, :sex, :created_at, :updated_at
+# 输出的数据
+{
+  "id": 1,
+  "name": "wangyun",
+  "email": "xxx@qq.com",
+  "age": "18",
+  "sex": false,
+  "created_at": "2019-04-24T02:02:30.000Z",
+  "updated_at": "2019-04-24T02:07:49.000Z",
+}
 ``` 
+
 动态定义属性和结构名：
 ```ruby
 json.set! :author do