此處有大坑一個，後臺需要json資料，本以為json和字典一樣傳送，結果後臺接收不到，想盡了一切辦法。。。。

直接上程式碼

- (void)didConfirmButtonClickWithItem:(OrderContentModel *)item {

    {

// 1.建立請求

NSURL *url = [NSURLURLWithString:@"http://192.168.31.125／url"];

NSMutableURLRequest *request = [NSMutableURLRequestrequestWithURL:url];

        request.HTTPMethod

// 2.設定請求頭

        [request setValue:@"application/json"forHTTPHeaderField:@"Content-Type"];

// 3.設定請求體

NSMutableDictionary *parameters = [NSMutableDictionarydictionary];

NSMutableDictionary * dishDict = [NSMutableDictionarydictionary];

for (int i =0; i<self.paymentOrder.ordersArray

NSMutableDictionary * dict = [NSMutableDictionarydictionary];

DishBriefItem * brief =self.paymentOrder.ordersArray[i];

            [self.paymentOrder.ordersArray[i]dish_id];

            dict[@"dish_id"] = brief.dish_id;

NSMutableArray * peitaoArray = [NSMutableArrayarray];

NSMutableArray

for (int j =0; j<brief.peitao.count; j++) {

DishPeiTaoGroupItem *group = brief.peitao[j];

for (int k =0; k < group.arr.count; k++) {

DishSubPeiTaoItem *sub = group.arr[k];

self.subItem = sub;

NSLog(@"subName:%@", sub.name);

if (sub.peitaoCount !=0) {

NSLog(@"%ld",(long)sub.peitaoCount);

                        [peitaoArray addObject:sub.garnish_id];

                        [peitaoNumArray addObject:[NSStringstringWithFormat:@"%ld",(long)sub.peitaoCount]];

                    }

                }

            }

NSString * peitaoString = [peitaoArraycomponentsJoinedByString:@","];

            dict[@"peitao"] = peitaoString;

NSLog(@"peitaoTest:%lu", (unsignedlong)brief.teshuyaoqiu.count);

NSString *peitaoNumString = [peitaoNumArraycomponentsJoinedByString:@","];

            dict[@"peitaoNum"] = peitaoNumString;

NSMutableArray * yaoqiuArray = [NSMutableArrayarray];

if ( brief.teshuyaoqiu.count >0) {

NSMutableArray * teshuyaoqiuArray = [NSMutableArrayarray];

for (int index =0; index < brief.teshuyaoqiu.count; index ++ ) {

DishSpecialOrderItem *item = brief.teshuyaoqiu[index];

NSLog(@"selectStatus:%d",item.selectedStatus);

if (item.selectedStatus ==1) {

                        [teshuyaoqiuArray addObject:item];

                    }

                }

for (int index =0; index < teshuyaoqiuArray.count; index ++ ) {

DishSpecialOrderItem *item = teshuyaoqiuArray[index];

                    [yaoqiuArray addObject:item.label_id];

                }

            }

            dict[@"teshuyaoqiu"] = [yaoqiuArraycomponentsJoinedByString:@","];

NSString * key = [NSStringstringWithFormat:@"%d",i];

            dishDict[key] = dict;

DishBriefItem *numItem =self.myOrdersArray[i];

NSString *string = dishDict[[NSStringstringWithFormat:@"%ld",(long)i]][@"dish_id"];

int dishNumm = [stringintValue];

NSNumber *dishNum = [NSNumbernumberWithInt:dishNumm];

NSString *stringing = [NSStringstringWithFormat:@"%ld",(long)numItem.orderCount];

int garnish = [stringingintValue];

NSNumber *garnishNum = [NSNumbernumberWithInt:garnish];

NSDictionary *dic = [NSDictionarydictionary];

            dic = @{

@"dish_id":dishNum,

@"part":garnishNum,

@"garnish_id":dict[@"peitao"],

@"garnish_part":dict[@"peitaoNum"],

@"label_id":dict[@"teshuyaoqiu"],

};

            [self.arrayaddObject:dic];

        }

NSString *stringinging =self.tableid;

int tableid = [stringingingintValue];

NSNumber *table = [NSNumbernumberWithInt:tableid];

        parameters[@"code"] = [NSStringstringWithFormat:@"%u",arc4random()];

        parameters[@"table_id"] = table;

        parameters[@"claim"] =self.beizhuContentTextField.text;

        parameters[@"dishes"] =self.array;

        parameters [@"allprice"] =self.priceLabel.text;

NSData *data = [NSJSONSerializationdataWithJSONObject:parameters options:NSJSONWritingPrettyPrinted error:nil];

        request.HTTPBody = data;

// 4.傳送請求

        [NSURLConnectionsendAsynchronousRequest:requestqueue:[NSOperationQueuemainQueue]completionHandler:^(NSURLResponse *response,NSData *data,NSError *connectionError) {

NSLog(@"------------%@-----------",response);

            [selfremoveLeftContentViewFromSuperView];

            [self.rightTabelViewreloadData];

        }];

    }

}