我有字典形式的加密,我想保存到文档目录中。我还希望能够从文档目录中检索这些词典,以在应用程序中解密。如何在/从文档目录写入/读取字典?
答案 0 :(得分:-1)
答案 1 :(得分:-1)
字典有其自己的write方法,该方法将字典内容的属性列表表示形式写入给定的URL。您可以使用以下代码进行操作:
写
// Get application document directory path array
let paths = NSSearchPathForDirectoriesInDomains(FileManager.SearchPathDirectory.documentDirectory, FileManager.SearchPathDomainMask.allDomainsMask, true)
let fileName = "users";
if let documentPath = paths.first {
let filePath = NSMutableString(string: documentPath).appendingPathComponent(fileName);
let URL = NSURL.fileURL(withPath: filePath)
let dictionary = NSMutableDictionary(capacity: 0);
dictionary.setValue("valu1", forKey: "key1");
dictionary.setValue("valu2", forKey: "key2");
let success = dictionary.write(to: URL, atomically: true)
print("write: ", success);
}
阅读
if let dictionary = NSMutableDictionary(contentsOf: URL){
print(dictionary);
}
希望,它将起作用。