ios NSURLResponse - 如何获取状态代码?

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时间:2020-08-31 01:59:05  来源:igfitidea点击:

NSURLResponse - How to get status code?

iosobjective-c

提问by inorganik

I have a simple NSURLRequest:

我有一个简单的 NSURLRequest:

[NSURLConnection sendAsynchronousRequest:myRequest queue:queue completionHandler:^(NSURLResponse *response, NSData *data, NSError *error) {
    // do stuff with response if status is 200
}];

How do I get the status code to make sure the request was ok?

如何获取状态代码以确保请求正常?

回答by inorganik

Cast an instance of NSHTTPURLResponsefrom the response and use its statusCodemethod.

NSHTTPURLResponse从响应中投射一个实例并使用它的statusCode方法。

[NSURLConnection sendAsynchronousRequest:myRequest queue:queue completionHandler:^(NSURLResponse *response, NSData *data, NSError *error) {
    NSHTTPURLResponse *httpResponse = (NSHTTPURLResponse *) response;
    NSLog(@"response status code: %ld", (long)[httpResponse statusCode]);
    // do stuff
}];

回答by Bjarte

In Swift with iOS 9 you can do it this way:

在带有 iOS 9 的 Swift 中,您可以这样做:

if let url = NSURL(string: requestUrl) {
    let request = NSMutableURLRequest(URL: url, cachePolicy: NSURLRequestCachePolicy.ReloadIgnoringLocalAndRemoteCacheData, timeoutInterval: 300)
    let config = NSURLSessionConfiguration.defaultSessionConfiguration()
    let session = NSURLSession(configuration: config)

    let task = session.dataTaskWithRequest(request, completionHandler: { (data, response, error) -> Void in
        if let httpResponse = response as? NSHTTPURLResponse {
            print("Status code: (\(httpResponse.statusCode))")

            // do stuff.
        }
    })

    task.resume()
}

回答by Haroldo Gondim

Swift 4

斯威夫特 4

let task = session.dataTask(with: request, completionHandler: { data, response, error -> Void in

    if let httpResponse = response as? HTTPURLResponse {
        print("Status Code: \(httpResponse.statusCode)")
    }

})

task.resume()