Swift中经常会遇到字典和字符串的相互转换，因此可以转换可以封装起来，转换代码如下:
func convertStringToDictionary(text: String) -> [String:AnyObject]? {
if let data = text.data(using: String.Encoding.utf8) {
do {
return try JSONSerialization.jsonObject(with: data, options: [JSONSerialization.ReadingOptions.init(rawValue: 0)]) as? [String:AnyObject] }
catch let error as NSError {
print(error) }
}
return nil}
func convertDictionaryToString(dict:[String:AnyObject]) -> String {
var result:String = "" do {
//如果设置options为JSONSerialization.WritingOptions.prettyPrinted，则打印格式更好阅读 let jsonData = try JSONSerialization.data(withJSONObject: dict, options: JSONSerialization.WritingOptions.init(rawValue: 0)) if let JSONString = String(data: jsonData, encoding: String.Encoding.utf8) {
result = JSONString }
}
catch {
result = "" }
return result}
func convertArrayToString(arr:[AnyObject]) -> String {
var result:String = "" do {
let jsonData = try JSONSerialization.data(withJSONObject: arr, options: JSONSerialization.WritingOptions.init(rawValue: 0)) if let JSONString = String(data: jsonData, encoding: String.Encoding.utf8) {
result = JSONString }
}
catch {
result = "" }
return result}
实际测试:
let jsonText:String = "{
"order_info":[{
"order_id":"1479828084819597144","channel":"ios","product_id":"02"}
,{
"order_id":"1479828084819597144","channel":"ios","product_id":"02"}
]}
" let dict = self.convertStringToDictionary(text: jsonText) print("字符串转换之后的字典:(dict!)") var dictionaryOrArray : [String: AnyObject] = [:] dictionaryOrArray["a"b"] = "cd" as AnyObject? dictionaryOrArray["strings"] = ["string", "another"] as AnyObject? dictionaryOrArray["keywdict"] = [ "anotherKey": 100, "Key2": "Val2"] as AnyObject? dictionaryOrArray["numbers"] = [ 1, 2, 3] as AnyObject? dictionaryOrArray["bools"] = [ true, false] as AnyObject? let convertResult:String = self.convertDictionaryToString(dict: dictionaryOrArray) print("字典转换之后的字符串:(convertResult)") let array:[String] = ["FlyElephant","keso"] print("数组转换之后的数组:(self.convertArrayToString(arr: array as [AnyObject]))")
以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持脚本之家。
