一般方式解析代碼如下

?NSDictionary *dict = [NSJSONSerialization JSONObjectWithData:data options:NSJSONReadingMutableContainers error:nil];

解析結(jié)果dict為nil，后來打印了data的類型為NSInlineData

NSInlineData怎樣處理，網(wǎng)上搜到的方式，很多都是按照下面方法改

AFHTTPSessionManager *manager = [AFHTTPSessionManager manager];

manager.responseSerializer=[AFJSONResponseSerializer new];//AFHTTPResponseSerializer換成了AFJSONResponseSerializer

manager.responseSerializer.acceptableContentTypes=[NSSetsetWithObjects:@"application/json",@"text/html",@"text/javascript",@"text/json",@"text/plain",nil];

但是改后請求直接失敗

失敗的error信息如下

Error Domain=NSCocoaErrorDomain Code=3840 "Unable to convert data to string around character 76." UserInfo={NSDebugDescription=Unable to convert data to string around character 74.}

后來查到這個問題原因一般是response的編碼問題

最終解決辦法，請求依舊如下設(shè)置

AFHTTPSessionManager *manager =?[AFHTTPResponseSerializer serializer]；

manager.responseSerializer=[AFHTTPResponseSerializer ? new];

manager.responseSerializer.acceptableContentTypes=[NSSetsetWithObjects:@"application/json",@"text/html",@"text/javascript",@"text/json",@"text/plain",nil];

解析結(jié)果用如下方法

NSStringEncoding enc = kCFStringEncodingUTF8;

NSString *strdata = [[NSString alloc]initWithData:responseData encoding:enc];

解析出了最終的結(jié)果，但是strdata中的漢字亂碼，后來查看請求里header編碼格式是Content-Type?→application/json;charset=GBK

最終改為

? ? NSStringEncoding enc = CFStringConvertEncodingToNSStringEncoding(kCFStringEncodingGB_18030_2000);

NSString *strdata = [[NSString alloc]initWithData:responseData encoding:enc];

完美解決問題