在
Swift 2.0 Update之前,这段代码可以很好地从服务器上用
PHP脚本下载我的JSON文件：
let url = NSURL(string: webAdress) let cachePolicy = NSURLRequestCachePolicy.ReloadIgnoringLocalAndRemoteCacheData var request = NSMutableURLRequest(URL: url!,cachePolicy: cachePolicy,timeoutInterval: 5.0) var response: NSURLResponse? = nil var error: NSError? = nil let reply = NSURLConnection.sendSynchronousRequest(request,returningResponse:&response,error:&error)
更新后Xcode要求我做一些更改.我做了,代码没有错误,但它总是抛出……
let url = NSURL(string: webAdress)
let cachePolicy = NSURLRequestCachePolicy.ReloadIgnoringLocalAndRemoteCacheData
let request = NSMutableURLRequest(URL: url!,timeoutInterval: 5.0)
var response: NSURLResponse? = nil
var reply = NSData()
do {
reply = try NSURLConnection.sendSynchronousRequest(request,returningResponse:&response)
} catch {
print("ERROR")
}
期待您的解决方案！
解决方法
这是使用新NSURLSession的示例 – 显然NSURLConnection已在iOS 9中弃用.
let url = NSURL(string: webAddress)
let request = NSURLRequest(URL: url!,cachePolicy: .ReloadIgnoringLocalAndRemoteCacheData,timeoutInterval: 5.0)
let session = NSURLSession.sharedSession()
session.dataTaskWithRequest(request,completionHandler: {(data,response,error) in
print(data)
print(response)
print(error)
})?.resume()
我认为它非常干净,没有太多关于它的文档.如果您在使用此功能时遇到任何问题,请与我们联系.