如何在 Swift（iOS、Xcode）中将 NSDictionary 转换为 Json 字符串？
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How to convert NSDictionary to Json String in Swift ( iOS, Xcode )?
提问by Rivu Chakraborty
I'm suffering from the following problem....
My NSDictionaryis like that :
我遇到了以下问题......我 NSDictionary就是这样：
var dic : NSDictionary = [ "level" :
[
["column" : 0,"down" : 0,"left" : 0,"right" : 0,"row" : 0,"up" : 0],
["column" : 1,"down" : 0,"left" : 0,"right" : 0,"row" : 0,"up" : 0],
["column" : 2,"down" : 0,"left" : 0,"right" : 0,"row" : 0,"up" : 0],
["column" : 0,"down" : 0,"left" : 0,"right" : 0,"row" : 1,"up" : 0],
["column" : 1,"down" : 0,"left" : 0,"right" : 0,"row" : 1,"up" : 0],
["column" : 2,"down" : 0,"left" : 0,"right" : 0,"row" : 1,"up" : 0]
]
]
But If I print this,
但如果我打印这个，
print(dic); or print(“\(dic)”);
The Out put Is like that :
输出是这样的：
{
level = (
{
column = 0;
down = 0;
left = 0;
right = 0;
row = 0;
up = 0;
},
{
column = 1;
down = 0;
left = 0;
right = 0;
row = 0;
up = 0;
},
{
column = 2;
down = 0;
left = 0;
right = 0;
row = 0;
up = 0;
},
{
column = 0;
down = 0;
left = 0;
right = 0;
row = 1;
up = 0;
},
{
column = 1;
down = 0;
left = 0;
right = 0;
row = 1;
up = 0;
},
{
column = 2;
down = 0;
left = 0;
right = 0;
row = 1;
up = 0;
}
); }
How Can I get exact Json String? In swift, xcode?
如何获得准确的 Json 字符串？在 swift 中，xcode？
回答by Mihir Mehta
No need to implement this kind of complex logic,
不需要实现这种复杂的逻辑，
You can simply do this
你可以简单地做到这一点
var jsonData: NSData = NSJSONSerialization.dataWithJSONObject(dictionary, options: NSJSONWritingOptions.PrettyPrinted, error: &error)!
if error == nil {
return NSString(data: jsonData, encoding: NSUTF8StringEncoding)! as String
}
and if you want to send it with API to server , no need to even convert it to String
如果你想用 API 将它发送到服务器，甚至不需要将它转换为 String
