DataType vs ContentType in jquery ajax [duplicate] 数据类型

一个是向服务器上上传的格式，一个是从服务器上下载过来的数据格式  （ps:正好理解反了，）   注：这句话是错误的

You can use the Response object to send output to the client.

What is the purpose of both in client side request and Server side response ?

dataType: the type of data that you're expecting back from the server.

Syntax

---

Response.ContentType [=ContentType]

contentType: when sending data to the server,use this content type. default is "application/x-www-form-urlencoded; charset=UTF-8",which is fine for

most cases.If you exlicitly pass in a content-type to $.ajax(),then it is always sent to the server(even if no data is sent). the W3C XMLHttpRequest specification

dictates that the charset is always UTF-8; specifying another charset will not force the browser to change the encoding.

最后

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