objective c 将特殊 URL 转换为 NSURL

Question

我有一个这样的 URL，我无法将它转换为 NSUrl。

  NSString * mURL = @"http://cl3.webterren.com/1.gif?z=7&a=157ffb99379&b=%u5149%u660E%u7F51_%u65B0%u95FB%u89C6%u91CE%u3001%u6587%u5316%u89C6%u89D2%u3001%u601D%u60F3%u6DF1%u5EA6%u3001%u7406%u8BBA%u9AD8%u5EA6&B=UTF-8&c=http%3A//gmw.cn/%3F_wdxid%3D000000000000000000000000000000000000000000%26_wdc%3D0%26_wdt%3D012%26&d=&e=0&f=0&H=gmw.cn&E=0&r=6c4a9d9057c8bcef&s=0&t=0&u=1&i=zh-tw&j=0&k=320x568&l=32&m=&n=&o=8";
  NSString *pathComponent = [mURL stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceAndNewlineCharacterSet]];
  NSURL* uri = [NSURL URLWithString:pathComponent];
  NSLog(@"uri host = %@", uri.host);
  NSLog(@"uri path = %@", uri.path);

并且，主机和路径为 (null)。我该如何解决这个问题？

Answer 1

请检查下面的代码，它正在运行，

NSString * mURL = @"http://cl3.webterren.com/1.gif?z=7&a=157ffb99379&b=%u5149%u660E%u7F51_%u65B0%u95FB%u89C6%u91CE%u3001%u6587%u5316%u89C6%u89D2%u3001%u601D%u60F3%u6DF1%u5EA6%u3001%u7406%u8BBA%u9AD8%u5EA6&B=UTF-8&c=http%3A//gmw.cn/%3F_wdxid%3D000000000000000000000000000000000000000000%26_wdc%3D0%26_wdt%3D012%26&d=&e=0&f=0&H=gmw.cn&E=0&r=6c4a9d9057c8bcef&s=0&t=0&u=1&i=zh-tw&j=0&k=320x568&l=32&m=&n=&o=8";
NSString * webStringURL = [mURL stringByAddingPercentEncodingWithAllowedCharacters:[NSCharacterSet URLFragmentAllowedCharacterSet]];
NSURL* url = [NSURL URLWithString:webStringURL];
NSLog(@"uri host = %@", url.host);
NSLog(@"uri path = %@", url.path);

Answer 2

检查这个

NSString * mURL = @"http://cl3.webterren.com/1.gif?z=7&a=157ffb99379&b=%u5149%u660E%u7F51_%u65B0%u95FB%u89C6%u91CE%u3001%u6587%u5316%u89C6%u89D2%u3001%u601D%u60F3%u6DF1%u5EA6%u3001%u7406%u8BBA%u9AD8%u5EA6&B=UTF-8&c=http%3A//gmw.cn/%3F_wdxid%3D000000000000000000000000000000000000000000%26_wdc%3D0%26_wdt%3D012%26&d=&e=0&f=0&H=gmw.cn&E=0&r=6c4a9d9057c8bcef&s=0&t=0&u=1&i=zh-tw&j=0&k=320x568&l=32&m=&n=&o=8";
NSURL *pathComponent = [NSURL URLWithString:[mURL stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding]];
NSLog(@"uri host = %@", pathComponent.host);
NSLog(@"uri path = %@", pathComponent.path);

Answer 3

在swift 3:

let mURL = "http://cl3.webterren.com/1.gif?z=7&a=157ffb99379&b=%u5149%u660E%u7F51_%u65B0%u95FB%u89C6%u91CE%u3001%u6587%u5316%u89C6%u89D2%u3001%u601D%u60F3%u6DF1%u5EA6%u3001%u7406%u8BBA%u9AD8%u5EA6&B=UTF-8&c=http%3A//gmw.cn/%3F_wdxid%3D000000000000000000000000000000000000000000%26_wdc%3D0%26_wdt%3D012%26&d=&e=0&f=0&H=gmw.cn&E=0&r=6c4a9d9057c8bcef&s=0&t=0&u=1&i=zh-tw&j=0&k=320x568&l=32&m=&n=&o=8";
    if let webStringURL = mURL.addingPercentEncoding(withAllowedCharacters: NSCharacterSet.urlFragmentAllowed),
        let url = NSURL(string: webStringURL) {
        debugPrint("uri host = \(url.host!)")
        debugPrint("uri path = \(url.path!)")
    }

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