Question

这就是我正在做的转换它。日志返回nil

let keys = ["firstName", "lastName", "age","carNumber", "licenseNumber", "email","password", "msgType"]
let objects = ["Pencil", "Eraser", "2332","534543", "543543", "Notebook","Pencil", "ADD_DRIVER"]
self.dictionary = NSDictionary(objects: objects, forKeys: keys)

var data = [Dictionary<String, String>]()
data.append(self.dictionary as! Dictionary<String, String>);
var jsonObj = JSON(data)

print("JSON Object")
print(jsonObj.stringValue)

Answer 1

要使用SwiftyJSON创建JSON字符串，请使用rawString(encoding: UInt = default, options opt: NSJSONWritingOptions = default)。这样字符串就不会包含新行等无效字符。

字典示例：

let keys = ["firstName", "lastName", "age","carNumber", "licenseNumber", "email","password", "msgType"]
let objects = ["Pencil", "Eraser", "2332","534543", "543543", "Notebook","Pencil", "ADD_DRIVER"]
let dict = NSDictionary(objects: objects, forKeys: keys)
let jsonObj = JSON(dict)
if let stringJSON = jsonObj.rawString(NSUTF8StringEncoding, options: []) {
    print(stringJSON)
}

结果：

{ “姓氏”： “橡皮擦”， “密码”： “铅笔”， “年龄”： “2332”， “名字”： “铅笔”， “licenseNumber”： “543543”， “电子邮件”：“笔记本”， “carNumber”： “534543”， “MSGTYPE”： “ADD_DRIVER”}

如果您想要在编码为JSON字符串之前在数组中使用它，那么只需将其嵌入到这样的数组中：

let keys = ["firstName", "lastName", "age","carNumber", "licenseNumber", "email","password", "msgType"]
let objects = ["Pencil", "Eraser", "2332","534543", "543543", "Notebook","Pencil", "ADD_DRIVER"]
let dict = NSDictionary(objects: objects, forKeys: keys)
let jsonObj = JSON([dict])
if let stringJSON = jsonObj.rawString(NSUTF8StringEncoding, options: []) {
    print(stringJSON)
}

结果：

[{ “MSGTYPE”： “ADD_DRIVER”， “密码”： “铅笔”， “名字”： “铅笔”， “年龄”： “2332”， “电子邮件”： “笔记本”， “carNumber”：” 534543" ， “licenseNumber”： “543543”， “姓氏”： “橡皮擦”}]

Answer 2

这就是我提交RESTful API的方式：

let submitJson: JSON =  ["user": username, "pass": password]
self.body = submitJson.rawString()!

print（self.body）返回：

{ ＆＃34;通过＆＃34; ：＆＃34; xxx＆＃34;，＆＃34;用户＆＃34; ：＆＃34; xxx＆＃34; }

NSDictionary＆gt;使用SwiftyJSON的JSON字符串

2 个答案: