iOS集成丁香园DXY OAuth 登陆 swift代码示例

问：iOS集成OAuth登陆分几步？

答：和把大象放冰箱里一样。

第一步：打开webview，跳转到登陆页面：

let url = "https://auth.dxy.cn/conn/oauth2/authorize?clientId=xxx&state=xxx&responseType=code&redirectUri=xxx”
webView.loadRequest(NSURLRequest(URL: NSURL(string:url)!))

第二步：在AppDelegate中，使用

func application(application: UIApplication, handleOpenURL url: NSURL) -> Bool ｛｝方法获取返回的code, 再通过code获取accessToken：

let requestUrl = NSURL(string: "https://auth.dxy.cn/conn/oauth2/accessToken")
let postData =  "clientId=xxx&clientSecret=xxx&grantType=authorizationCode&redirectUri=xxx&code=\(code)"
let request = NSMutableURLRequest(URL: requestUrl!)
request.HTTPMethod = "POST"
request.HTTPBody = postData.dataUsingEncoding(NSUTF8StringEncoding)

第三步：通过accessToken获取用户信息，再捎带把webview关了：

let getUserInfoRequestUrl = NSURL(string: "https://auth.dxy.cn/conn/oauth2/profile")
let getUserInfoPostData = "accessToken=\(access_token)"

let getUserInfoRequest = NSMutableURLRequest(URL: getUserInfoRequestUrl!)
getUserInfoRequest.HTTPMethod = "POST"
getUserInfoRequest.HTTPBody = getUserInfoPostData.dataUsingEncoding(NSUTF8StringEncoding)

let getUserInfoDataTask = session.dataTaskWithRequest(getUserInfoRequest,
completionHandler: {(data:NSData?, response:NSURLResponse?, error:NSError?) -> Void in
if error != nil {
print(error?.code)
print(error?.description)
}
else    {
let str = NSString(data: data!, encoding: NSUTF8StringEncoding)
do{
let userInfoResult = try NSJSONSerialization.JSONObjectWithData(data!, options: NSJSONReadingOptions())
let id = userInfoResult["id"] as? String

let viewController = self.window?.rootViewController as! ViewController
viewController.id = id
viewController.closeWebView()
}
catch {}
}
})

getUserInfoDataTask.resume()

Ok, That's it. 是不是很简单？！