Question

我已经下载了Json格式的数据。

{"name":"Shropshire Outage","nc_lead":"John Smith","dma":"11/111","username":"vwaghx1","status":"REOPENED","sapOrder":"12341245","ccsText":"123","nbPropAtRisk":12,"logs":[{"dateTime":"2016-04-07 20:02:42","valveStatusChangeDateTime":"2016-04-07 20:02:00","user":"vwaghx1","uid":null,"task":"CUSTPOORSUPPLIES","id_log":1489},{"dateTime":"2016-04-07 20:03:35","valveStatusChangeDateTime":"2016-04-07 20:02:00","user":"vwaghx1","uid":1238768765,"task":"PRESSURELOGGER","id_log":1490},{"dateTime":"2016-04-07 20:04:36","valveStatusChangeDateTime":"2016-04-07 20:02:00","user":"vwaghx1","uid":7692466478,"task":"CUSTSUPPLIESRESTOREDSOME","id_log":1491}],"id_event":601,"region":"Shropshire","trigger":"No Supply Call”,”valveOps":[{"dateTime":"2016-04-07 20:06:12","user":"vwaghx1","uid":7866756788,"x":678666,"y":723325,"description”:”Burst main downstream valve","id_valve_op":523},{"dateTime":"2016-04-07 20:05:31","user":"vwaghx1","uid":5674456470,"x":344534,"y":723433,"description":"Valve to separate both rezones","id_valve_op":522},{"dateTime":"2016-04-14 12:32:00","user":"vwaghx1","uid":1234512345,"x":123123,"y":123123,"description":"test","id_valve_op":541}],"images":[{"name":"After improvement.jpg","dateTimeCreated":"2016-04-08 14:10:30","contentType":"image/jpeg","caption":null,"uuid":null,"fileExtension":"jpeg","id_image":661},...]}

但是，当我尝试使用下面的代码解析它时，我只能访问字符串值，如“name”，“nc_lead”，“region”等。

if let json = try NSJSONSerialization.JSONObjectWithData(data!, options:.AllowFragments) as? Array<Dictionary<String, AnyObject>> {
    for item in json {
        if let dict = item as? Dictionary<String, AnyObject> {
            if let nameStr = dict["name"] as? String {
                incidentList.valueStr = nameStr
            }
            if let codeStr = dict["dma"] as? String {
                incidentList.valueStr = codeStr
            }
            if let region = dict[“region”] as? String {
                incidentList.valueStr = region
            }
            if let ncLead = dict[“nc_lead”] as? String {
                incidentList.valueStr = ncLead
            }

我需要访问像“logs”，“images”和“valveOps”这样的组值，它们在数组中有自己的字符串值。如何更改我的代码以便我可以像现在一样访问字符串并将组加载到数组中？

Answer 1

您可以这样尝试，先声明3个数组。

var logArr: [[String: AnyObject]] = [[String: AnyObject]]()
var imageArr: [[String: AnyObject]] = [[String: AnyObject]]()
var valveArr: [[String: AnyObject]] = [[String: AnyObject]]()

现在使用此数组来获得响应

if let json = try NSJSONSerialization.JSONObjectWithData(data!, options:.AllowFragments) as? Array<Dictionary<String, AnyObject>> {
for item in json {
    if let dict = item as? Dictionary<String, AnyObject> {
        if let nameStr = dict["name"] as? String {
            incidentList.valueStr = nameStr
        }
        if let codeStr = dict["dma"] as? String {
            incidentList.valueStr = codeStr
        }
        if let region = dict["region"] as? String {
            incidentList.valueStr = region
        }
        if let ncLead = dict["nc_lead"] as? String {
            incidentList.valueStr = ncLead
        }
        if let logs = dict["logs"] as? [[String: AnyObject]] {
            self.logArr = logs
        }
        if let valveOps = dict["valveOps"] as? [[String: AnyObject]] {
            self.valveArr = valveOps
        }
        if let images = dict["images"] as? [[String: AnyObject]] {
            self.imageArr = images
        }

使用NSJSONSerialization.JSONObjectWithData（）解析数据但不能仅访问字符串组

1 个答案: