在其源码里面增加代码，位置为：AFN>Serialization>AFURLResponseSerialization.m 第233行
>这段代码
if(!responseObject) {
responseObject = [[NSStringalloc] initWithData:data encoding:NSUTF8StringEncoding];
}
>这段代码
if (!responseObject)
{
if (error) {
*error = AFErrorWithUnderlyingError(serializationError, *error);
}
return nil;
}
if (self.removesKeysWithNullValues) {
return AFJSONObjectByRemovingKeysWithNullValues(responseObject, self.readingOptions);
}
return responseObject;
}
下面可以直接替换这个方法体：
#pragma mark - AFURLResponseSerialization
- (id)responseObjectForResponse:(NSURLResponse*)response
data:(NSData*)data
error:(NSError*__autoreleasing*)error
{
if(![selfvalidateResponse:(NSHTTPURLResponse*)responsedata:dataerror:error]) {
if (!error || AFErrorOrUnderlyingErrorHasCodeInDomain(*error, NSURLErrorCannotDecodeContentData, AFURLResponseSerializationErrorDomain)) {
returnnil;
}
}
idresponseObject =nil;
NSError*serializationError =nil;
// Workaround for behavior of Rails to return a single space for `head :ok` (a workaround for a bug in Safari), which is not interpreted as valid input by NSJSONSerialization.
// See https://github.com/rails/rails/issues/1742
BOOL isSpace = [data isEqualToData:[NSData dataWithBytes:" " length:1]];
if(data.length>0&& !isSpace) {
responseObject = [NSJSONSerializationJSONObjectWithData:dataoptions:self.readingOptionserror:&serializationError];
}else{
returnnil;
}
if(!responseObject) {
responseObject = [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding];
}
if(!responseObject)
{ if(error) {
*error =AFErrorWithUnderlyingError(serializationError, *error);
}
return nil;
}
if(self.removesKeysWithNullValues&& responseObject) {
return AFJSONObjectByRemovingKeysWithNullValues(responseObject, self.readingOptions);
}
returnresponseObject;
}
