获得与邮政阿贾克斯 [英] GET vs POST in Ajax
问题描述
在获取和发表的阿贾克斯要求？
我不明白这两者之间有什么区别，只是当我使用 GET ，参数发送URL，这对我来说真的不作出任何区别，因为所有的请求都做对的背景和用户不会发现任何区别。
I don't see any difference between those two, except that when I use GET, the parameters are send in URL, which for me don't really make any difference, since all requests are made on background and user doesn't find any difference.
编辑： 什么是 PUT 和删除用的呢？方法
edit: What are PUT and DELETE methods used for?
推荐答案
GET是专为从服务器获取数据。 POST（和鲜为人知的朋友PUT和DELETE）是专为修改服务器上的数据。
GET is designed for getting data from the server. POST (and lesser-known friends PUT and DELETE) are designed for modifying data on the server.
一个GET请求不应该导致数据从应用程序中删除。如果你有一个链接，您可以点击一个GET删除的数据，那么谷歌蜘蛛你的网站可能会点击你所有的删除链接。
A GET request should never cause data to be removed from an application. If you have a link you can click on with a GET to remove data, then Google spidering your site could click on all your "Delete" links.
的规范答案可以发现这里，它引用的是HTML 2.0规范：
The canonical answer can be found here, which quotes the HTML 2.0 spec:
如果表单的处理是幂等（即它没有持久 上的状态的显着影响 世界），则形式方法应该 得到。许多数据库的搜索没有 可见的副作用，使理想 查询表单应用程序。
If the processing of a form is idempotent (i.e. it has no lasting observable effect on the state of the world), then the form method should be GET. Many database searches have no visible side-effects and make ideal applications of query forms.
如果用表格的处理相关联的服务有副作用 （例如，变形例的 数据库或预订到 服务），该方法应该是POST
If the service associated with the processing of a form has side effects (for example, modification of a database or subscription to a service), the method should be POST.
在你的AJAX调用，你需要使用什么方法，你的服务器支持。你应该总是设计您的服务器，以便修改数据的操作由POST称为/ PUT / DELETE。其他意见有联系的休息，这通常映射C / R / U / D为POST或PUT / GET / PUT / DELETE。
In your AJAX call, you need to use whatever method your server supports. You should always design your server so that operations that modify data are called by POST/PUT/DELETE. Other comments have links to REST, which generally maps C/R/U/D to POST or PUT/GET/PUT/DELETE.
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