AFN发送请求失败

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发送请求出现这个错误
 Error Domain=NSCocoaErrorDomain Code=3840 "The operation couldn’t be completed. (Cocoa error 3840.)" (JSON text did not start with array or object and option to allow fragments not set.) UserInfo=0x7fa97c8cb480 {NSDebugDescription=JSON text did not start with array or object and option to allow fragments not set., NSUnderlyingError=0x7fa97c8794b0 "Request failed: unsupported media type (415)"}

系解析失败, 需要更改解析器为:

mgr.requestSerializer=[AFJSONRequestSerializer serializer];

AFN发送请求失败

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原文地址：http://www.cnblogs.com/Rinpe/p/4935453.html