获取 URL 字符串的域部分?

问题描述

我有一个带有 URL 的 NSString，这样:

I have an NSString with an URL, in this way:

http://someurl.com/something

我怎样才能只获得 someurl.com?我已经尝试过 substringToIndex 没有运气:(

How would I get someurl.com only? I've already tried substringToIndex with no luck :(

提前致谢:)

推荐答案

Objective-C

NSString* urlString = @"http://someurl.com/something";
NSURL* url = [NSURL URLWithString:urlString];
NSString* domain = [url host];

斯威夫特 2

var urlString = "http://someurl.com/something"
var url = NSURL(string: urlString)
var domain = url?.host

Swift 3+

var urlString = "http://someurl.com/something"
var url = URL(string: urlString)
var domain = url?.host

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