html - ExtJS 的 store 将所有数据保存在哪里

Question

我想知道 ExtJS 将所​​有数据存储在哪里？我知道数据存储在内存中，但我想知道它是在内部使用 HTML 5 本地存储还是使用了任何其他技术？

谢谢，迪普什

Answer 1

It depends.

In every case, the data of the store is stored in a Javascript object. The store persists its data via a proxy. It is a matter of configuration how this data is stored. You can configure different types of proxies:

Client side storage

• LocalStorageProxy - saves its data to localStorage if the browser supports it
• SessionStorageProxy - saves its data to sessionStorage if the browsers supports it
• MemoryProxy - holds data in memory only, any data is lost when the page is refreshed

Server side storage

• Ajax - sends requests to a server on the same domain
• JsonP - uses JSON-P to send requests to a server on a different domain
• Rest - uses RESTful HTTP methods (GET/PUT/POST/DELETE) to communicate with server
• Direct - uses Ext.direct.Manager to send requests

More details are in the docs.

Answer 2

数据存储在称为 a 的内存集合中MixedCollection。它是一个有序集合，但它也允许您通过键查找数据，所以它就像有一个有序的 hashmap。