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如何在Swift中发出HTTP请求+基本身份验证
EN

Stack Overflow用户
提问于 2014-06-24 14:20:14
回答 7查看 118.8K关注 0票数 113

我有一个具有基本身份验证的RESTFull服务,我想从iOS+swift调用它。我必须如何以及在何处提供此请求的凭据?

我的代码(对不起,我刚刚开始学习iOS/obj-c/swift):

class APIProxy: NSObject {
    var data: NSMutableData = NSMutableData()
    
    func connectToWebApi() {
        var urlPath = "http://xx.xx.xx.xx/BP3_0_32/ru/hs/testservis/somemethod"
        NSLog("connection string \(urlPath)")
        var url: NSURL = NSURL(string: urlPath)
        var request = NSMutableURLRequest(URL: url)
        let username = "hs"
        let password = "1"
        let loginString = NSString(format: "%@:%@", username, password)
        let loginData: NSData = loginString.dataUsingEncoding(NSUTF8StringEncoding)
        let base64LoginString = loginData.base64EncodedStringWithOptions(NSDataBase64EncodingOptions.fromMask(0))
        request.setValue(base64LoginString, forHTTPHeaderField: "Authorization")
        
        var connection: NSURLConnection = NSURLConnection(request: request, delegate: self)
        
        connection.start()
    }
    
    
    //NSURLConnection delegate method
    func connection(connection: NSURLConnection!, didFailWithError error: NSError!) {
        println("Failed with error:\(error.localizedDescription)")
    }
    
    //NSURLConnection delegate method
    func connection(didReceiveResponse: NSURLConnection!, didReceiveResponse response: NSURLResponse!) {
        //New request so we need to clear the data object
        self.data = NSMutableData()
    }
    
    //NSURLConnection delegate method
    func connection(connection: NSURLConnection!, didReceiveData data: NSData!) {
        //Append incoming data
        self.data.appendData(data)
    }
    
    //NSURLConnection delegate method
    func connectionDidFinishLoading(connection: NSURLConnection!) {
        NSLog("connectionDidFinishLoading");
    }
    
}
EN

回答 7

Stack Overflow用户

回答已采纳

发布于 2014-06-24 15:34:50

您可以在URLRequest实例中提供凭据,如Swift 3中所示:

let username = "user"
let password = "pass"
let loginString = String(format: "%@:%@", username, password)
let loginData = loginString.data(using: String.Encoding.utf8)!
let base64LoginString = loginData.base64EncodedString()

// create the request
let url = URL(string: "http://www.example.com/")!
var request = URLRequest(url: url)
request.httpMethod = "POST"
request.setValue("Basic \(base64LoginString)", forHTTPHeaderField: "Authorization")

// fire off the request
// make sure your class conforms to NSURLConnectionDelegate
let urlConnection = NSURLConnection(request: request, delegate: self)

或者在Swift 2中的NSMutableURLRequest中:

// set up the base64-encoded credentials
let username = "user"
let password = "pass"
let loginString = NSString(format: "%@:%@", username, password)
let loginData: NSData = loginString.dataUsingEncoding(NSUTF8StringEncoding)!
let base64LoginString = loginData.base64EncodedStringWithOptions([])

// create the request
let url = NSURL(string: "http://www.example.com/")
let request = NSMutableURLRequest(URL: url)
request.HTTPMethod = "POST"
request.setValue("Basic \(base64LoginString)", forHTTPHeaderField: "Authorization")

// fire off the request
// make sure your class conforms to NSURLConnectionDelegate
let urlConnection = NSURLConnection(request: request, delegate: self)
票数 191
EN

Stack Overflow用户

发布于 2014-10-03 12:42:20

//创建鉴权base 64编码字符串

    let PasswordString = "\(txtUserName.text):\(txtPassword.text)"
    let PasswordData = PasswordString.dataUsingEncoding(NSUTF8StringEncoding)
    let base64EncodedCredential = PasswordData!.base64EncodedStringWithOptions(NSDataBase64EncodingOptions.Encoding64CharacterLineLength)
    //let base64EncodedCredential = PasswordData!.base64EncodedStringWithOptions(nil)

//创建鉴权url

    let urlPath: String = "http://...../auth"
    var url: NSURL = NSURL(string: urlPath)

//创建并初始化基本鉴权请求

    var request: NSMutableURLRequest = NSMutableURLRequest(URL: url)
    request.setValue("Basic \(base64EncodedCredential)", forHTTPHeaderField: "Authorization")
    request.HTTPMethod = "GET"

//您可以使用以下方法之一

//1使用NSURLConnectionDataDelegate请求URL

    let queue:NSOperationQueue = NSOperationQueue()
    let urlConnection = NSURLConnection(request: request, delegate: self)
    urlConnection.start()

//2使用AsynchronousRequest请求URL

    NSURLConnection.sendAsynchronousRequest(request, queue: NSOperationQueue.mainQueue()) {(response, data, error) in
        println(NSString(data: data, encoding: NSUTF8StringEncoding))
    }

//2带有json输出的AsynchronousRequest的URL请求

    NSURLConnection.sendAsynchronousRequest(request, queue: NSOperationQueue.mainQueue(), completionHandler:{ (response: NSURLResponse!, data: NSData!, error: NSError!) -> Void in
        var err: NSError
        var jsonResult: NSDictionary = NSJSONSerialization.JSONObjectWithData(data, options: NSJSONReadingOptions.MutableContainers, error: nil) as NSDictionary
        println("\(jsonResult)")
    })

//3url请求SynchronousRequest

    var response: AutoreleasingUnsafePointer<NSURLResponse?>=nil
    var dataVal: NSData =  NSURLConnection.sendSynchronousRequest(request, returningResponse: response, error:nil)
    var err: NSError
    var jsonResult: NSDictionary = NSJSONSerialization.JSONObjectWithData(dataVal, options: NSJSONReadingOptions.MutableContainers, error: nil) as NSDictionary
    println("\(jsonResult)")

//4url请求NSURLSession

    let config = NSURLSessionConfiguration.defaultSessionConfiguration()
    let authString = "Basic \(base64EncodedCredential)"
    config.HTTPAdditionalHeaders = ["Authorization" : authString]
    let session = NSURLSession(configuration: config)

    session.dataTaskWithURL(url) {
        (let data, let response, let error) in
        if let httpResponse = response as? NSHTTPURLResponse {
            let dataString = NSString(data: data, encoding: NSUTF8StringEncoding)
            println(dataString)
        }
    }.resume()

//如果在服务器请求get请求时更改了request.HTTPMethod = "POST“,可能会出现致命错误

票数 23
EN

Stack Overflow用户

发布于 2018-01-19 03:41:28

swift 4:

let username = "username"
let password = "password"
let loginString = "\(username):\(password)"

guard let loginData = loginString.data(using: String.Encoding.utf8) else {
    return
}
let base64LoginString = loginData.base64EncodedString()

request.httpMethod = "GET"
request.setValue("Basic \(base64LoginString)", forHTTPHeaderField: "Authorization")
票数 23
EN
页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接:

https://stackoverflow.com/questions/24379601

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