更好的

Question

我们正在使用如下的json对象数组：

[{
    "CompanyCode": "1",
    "MachineCode": null,
    "MachineName": null,
    "NoOfMeters": null,
    "ScheduleNo": "12028",
    "ScheduleDate": "17/2/2018 12:00:00 AM",
    "ScheduleUser": "sales",
    "CustomerCode": "0022100007",
    "DeliveryCode": "0",
    "SortOrder": "1",
    "JobRefNo": "",
    "CustomerName": "COLD STORAGE SUPERMARKETS ",
    "CustAddress1": "GIANT COMPLEX",
    "OutletName": "",
    "OutAddress1": "",
    "IsJobClosed": ""
}, {
    "CompanyCode": "1",
    "MachineCode": null,
    "MachineName": null,
    "NoOfMeters": null,
    "ScheduleNo": "12029",
    "ScheduleDate": "17/2/2018 12:00:00 AM",
    "ScheduleUser": "sales",
    "CustomerCode": "0022100008",
    "DeliveryCode": "0",
    "SortOrder": "1",
    "JobRefNo": "",
    "CustomerName": "COLD STORAGE WH - 21 TAMPINES ",
    "CustAddress1": "GIANT COMPLEX",
    "OutletName": "",
    "OutAddress1": "",
    "IsJobClosed": ""
}, {
    "CompanyCode": "1",
    "MachineCode": null,
    "MachineName": null,
    "NoOfMeters": null,
    "ScheduleNo": "12027",
    "ScheduleDate": "17/2/2018 12:00:00 AM",
    "ScheduleUser": "winapp",
    "CustomerCode": "0022100003",
    "DeliveryCode": "0",
    "SortOrder": "1",
    "JobRefNo": "",
    "CustomerName": "AVENZA PTE LTD ",
    "CustAddress1": "83 CLEMENCEAU AVE",
    "OutletName": "",
    "OutAddress1": "",
    "IsJobClosed": ""
}, {
    "CompanyCode": "1",
    "MachineCode": null,
    "MachineName": null,
    "NoOfMeters": null,
    "ScheduleNo": "12025",
    "ScheduleDate": "17/2/2018 12:00:00 AM",
    "ScheduleUser": "winapp",
    "CustomerCode": "0022100001",
    "DeliveryCode": "0",
    "SortOrder": "1",
    "JobRefNo": "",
    "CustomerName": "CASH ON DELIVERY (TO) ",
    "CustAddress1": "CASH ON DELIVERY",
    "OutletName": "",
    "OutAddress1": "",
    "IsJobClosed": ""
}, {
    "CompanyCode": "1",
    "MachineCode": null,
    "MachineName": null,
    "NoOfMeters": null,
    "ScheduleNo": "12026",
    "ScheduleDate": "17/2/2018 12:00:00 AM",
    "ScheduleUser": "winapp",
    "CustomerCode": "0022100002",
    "DeliveryCode": "0",
    "SortOrder": "1",
    "JobRefNo": "",
    "CustomerName": "DESPATCH - MT ",
    "CustAddress1": "DESPATCH",
    "OutletName": "",
    "OutAddress1": "",
    "IsJobClosed": ""
}]

我们希望将此阵列分组基于 ScheduleUser 键，如部分。

我们研究过swift 4 Here

中的分组

但是他们给出了一系列字符串，我们不知道如何处理json值。如果有任何其他方式，请给我们解决方案。我们提到了以下Link

我们无法理解这一点。

从本地获取值

if let path = Bundle.main.path(forResource: "salesorder", ofType: "json") {
        do {
            let data = try Data(contentsOf: URL(fileURLWithPath: path), options: .alwaysMapped)
            do{
                let json =  try JSONSerialization.jsonObject(with: data, options: .allowFragments)
                let jsonDictionary =  json as? [[String:Any]]

                print(jsonDictionary!)

            }catch let error{
                print(error.localizedDescription)
            }
        } catch let error {
            print(error.localizedDescription)
        }
    } else {
        print("Invalid filename/path.")
    }

提前致谢..

Answer 1

更好的

使用分组方式

if let path = Bundle.main.path(forResource: "salesorder", ofType: "json") {
        do {
            let data = try Data(contentsOf: URL(fileURLWithPath: path), options: .alwaysMapped)
            do{
                let json =  try JSONSerialization.jsonObject(with: data, options: .allowFragments)
                if let jsonDictionary =  json as? [[String:Any]]{

                var grouped2 : [String:[[String:Any]]] = Dictionary(grouping: jsonDictionary, by: {$0["ScheduleUser"] as! String})
                debugPrint(grouped2)
                print(jsonDictionary)
                }

            }catch let error{
                print(error.localizedDescription)
            }
        } catch let error {
            print(error.localizedDescription)
        }
    } else {
        print("Invalid filename/path.")
    }

手动方式

if let path = Bundle.main.path(forResource: "salesorder", ofType: "json") {
            do {
                let data = try Data(contentsOf: URL(fileURLWithPath: path), options: .alwaysMapped)
                do{
                    let json =  try JSONSerialization.jsonObject(with: data, options: .allowFragments)
                    if let jsonDictionary =  json as? [[String:Any]]{

                        var grouped : [String:[[String:Any]]] = [:]
                        for dict in jsonDictionary {
                            let value = dict["ScheduleUser"] as! String
                            if(grouped[dict["ScheduleUser"] as! String] == nil){
                                grouped[value] = [dict]
                            }else{
                                grouped[value]?.append(dict)
                            }
                        }
                        debugPrint(grouped)
                    print(jsonDictionary)
                    }

                }catch let error{
                    print(error.localizedDescription)
                }
            } catch let error {
                print(error.localizedDescription)
            }
        } else {
            print("Invalid filename/path.")
        }

<强>日志

[“winapp”：[[“MachineName”：，“CustomerCode”：0022100003， “JobRefNo”：，“OutAddress1”:,“SortOrder”：1，“IsJobClosed”:,, “CustAddress1”：83 CLEMENCEAU AVE，“OutletName”：，“MachineCode”：，“ScheduleDate”：17/2/2018 12:00:00 AM，“客户名称”：AVENZA PTE LTD，“ScheduleNo”：12027，“NoOfMeters”：，“DeliveryCode”： 0，“ScheduleUser”：winapp，“CompanyCode”：1]，[“MachineName”:,, “CustomerCode”：0022100001，“JobRefNo”：，“OutAddress1”:, “SortOrder”：1，“IsJobClosed”：，“CustAddress1”：现金交付， “OutletName”：，“MachineCode”：，“ScheduleDate”：17/2/2018 凌晨12:00:00，“客户名称”：现金交付（收货），“ScheduleNo”： 12025，“NoOfMeters”：，“DeliveryCode”：0，“ScheduleUser”： winapp，“CompanyCode”：1]，[“MachineName”：，“CustomerCode”： 0022100002，“JobRefNo”：，“OutAddress1”：，“SortOrder”：1， “IsJobClosed”：，“CustAddress1”：DESPATCH，“OutletName”:, “MachineCode”：，“ScheduleDate”：17/2/2018 12:00:00 AM， “客户名称”：DESPATCH - MT，“ScheduleNo”：12026，“NoOfMeters”：，“DeliveryCode”：0，“ScheduleUser”：winapp，“CompanyCode”：1]]， “sales”：[[“MachineName”：，“CustomerCode”：0022100007， “JobRefNo”：，“OutAddress1”:,“SortOrder”：1，“IsJobClosed”:,, “CustAddress1”：GIANT COMPLEX，“OutletName”：，“MachineCode”:, “ScheduleDate”：17/2/2018 12:00:00 AM，“客户名称”：冷藏 SUPERMARKETS，“ScheduleNo”：12028，“NoOfMeters”:,, “DeliveryCode”：0，“ScheduleUser”：sales，“CompanyCode”：1]， [“MachineName”：，“CustomerCode”：0022100008，“JobRefNo”:,, “OutAddress1”：，“SortOrder”：1，“IsJobClosed”：，“CustAddress1”： GIANT COMPLEX，“OutletName”：，“MachineCode”：，“ScheduleDate”： 17/2/2018 12:00:00 AM，“客户名称”：冷库存 - WH-21 TAMPINES， “ScheduleNo”：12029，“NoOfMeters”：，“DeliveryCode”：0， “ScheduleUser”：sales，“CompanyCode”：1]]]

Answer 2

获取数组中的所有可能值 -

let arr = your data...
let posValues = arr.map { $0["ScheduleUser"] as? String }

现在为过滤数据创建一个字典 -

var newDict:[String:Any] = [:]

for aValue in posValues {

    let filteredDicts = arr.filter({ ($0.["ScheduleUser"] == aValue)})
    newDict[aValue] = filteredDicts
}

如果对象包含基于键的重复名称，则对json对象进行分组？

2 个答案:

更好的