iOS后台收不到 AFN提交的Array

NSArray *array = value;
        for (id nestedValue in array) {
            [mutableQueryStringComponents addObjectsFromArray:AFQueryStringPairsFromKeyAndValue([NSString stringWithFormat:@"%@[]", key], nestedValue)];
        }

for (id nestedValue in array) {
[mutableQueryStringComponents addObjectsFromArray:
AFQueryStringPairsFromKeyAndValue(
      [NSString stringWithFormat:@"%@[%lu]", key,(unsigned long)[array indexOfObject:nestedValue]], nestedValue)];
}

for (id nestedValue in array) {
[mutableQueryStringComponents addObjectsFromArray:
AFQueryStringPairsFromKeyAndValue(
      [NSString stringWithFormat:@"%@[]", key,(unsigned long)[array indexOfObject:nestedValue]], nestedValue)];
}

for (id nestedValue in array) {
            [mutableQueryStringComponents addObjectsFromArray:AFQueryStringPairsFromKeyAndValue([NSString stringWithFormat:@"%@", key], nestedValue)];
        }