我从NSData的Web服务响应中接收到base64String,如何快速将base64String转换为String?
//Code
var jsonResult = NSJSONSerialization.JSONObjectWithData(data, options: NSJSONReadingOptions.MutableContainers, error: &err) as! NSDictionary // Response JSON from webservice
var base64String : String = ""
base64String = jsonResult["Base64String"] as! String // Retrieve base64String as string from json response
println("Base64String Alone: \(base64String)")
// Code to decode that base64String
let decodedData = NSData(base64EncodedString: base64String, options: NSDataBase64DecodingOptions(rawValue: 0))
println("Decoded: \(decodedData)")
let decodedString = NSString(data: decodedData!, encoding: NSUTF8StringEncoding)
println(decodedString) // Prints nil
如果文件包含某些表格式/图像,则编码和解码都会给出无效的base64String,base64String的编码和解码可以很好地用于仅包含文本的文件。如何将文件转换为base64String进行编码和解码,无论文件内容如何?
文件格式为doc,docx,pdf,txt
预先感谢您的任何帮助!
最佳答案
尝试这个
let base64Encoded = "YW55IGNhcm5hbCBwbGVhc3VyZS4="
let decodedData = Data(base64Encoded: base64Encoded)!
let decodedString = String(data: decodedData, encoding: .utf8)!
print(decodedString)
println(decodedString)
确保您的base 64编码字符串有效
关于swift - 如何在Swift中将base64String转换为String?,我们在Stack Overflow上找到一个类似的问题:https://stackoverflow.com/questions/31859185/