需求
项目要进行一个购物车价格的计算，需要从客户端传递用户购物车中商品的信息，包括ID和数量，同时 涉及到优惠码。
一般我们用AFNetworking传递参数都是使用如下代码：
// 取得管理者
AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager];
// 取得连接
NSMutableArray *paramDics = ......
NSString *shoppingCartUrl = @"http://000.000.00.0:8080/api/v1/products";
[manager GET:shoppingCartUrl parameters:paramDics success:^(AFHTTPRequestOperation *operation, id responseObject) {
NSMutableArray *dataDics = responseObject[@"data"];
_collectionArrs = [GCProductModel mj_objectArrayWithKeyValuesArray:dataDics];
// 刷新页面
[_mainTableView reloadData];
} failure:^(AFHTTPRequestOperation *operation, NSError *error) {
NSLog(@"取得的数据失败----%@",error);
}];
这个方法可以满足绝大多数情况下的参数传递需求。
但是当参数很复杂的时候，例如：
这个参数包含了字典、又包含了数组，比较复杂。直接上代码吧
代码
_manager = [AFHTTPRequestOperationManager manager];
// 2 设置头部
_manager.responseSerializer = [AFJSONResponseSerializer serializer];
_manager.requestSerializer = [AFJSONRequestSerializer serializer];
NSString *authorization = AUTHORIZTION;
[_manager.requestSerializer setValue:authorization forHTTPHeaderField:@"Authorization"];
// 调用接口计算总价
NSString *caculateTotlePriceStr = @"http://xxxxxxx";
// 构造参数
NSMutableArray *paramArrs = [NSMutableArray array];
for (int i = 0; i < _shoppingCartArrs.count ; i++ ) {
GCShoppingCartProductModel *model = _shoppingCartArrs[i];
NSString *productIDStr = [[NSString alloc]initWithFormat:@"%ld",model.productId];
NSString *quantityStr = [[NSString alloc]initWithFormat:@"%ld",model.quantity];
NSDictionary *temp = @{@"product_id": productIDStr,@"quantity":quantityStr};
[paramArrs addObject:temp];
}
NSDictionary *couponDic = @{@"couponCode":coupon_code};
NSDictionary *caculateParamsDic = @{@"products":paramArrs,@"order":couponDic};
[_manager POST:caculateTotlePriceStr parameters:caculateParamsDic success:^(AFHTTPRequestOperation *operation, id responseObject) {
NSMutableArray *caculateTotlePriceDic = [NSMutableArray array];
caculateTotlePriceDic = responseObject[@"data"];
_detailCellModel = [GCOrderCaculateModel mj_objectWithKeyValues:caculateTotlePriceDic];
_priceDetailCell.model = _detailCellModel;
[_mainTableView reloadData];
[self setSubmitPrice];
} failure:^(AFHTTPRequestOperation *operation, NSError *error) {
NSLog(@"取得的数据失败----%@",error);
}];
