iOS 对URL编码

1. 首先来看下什么样的是URL编码(字符串中带有%22 类似这样的)

NSString *str = @"http://m.tuniu.com/api/home/data/index/c/%7B%22v%22%3A%227.1.0%22%2C%22ct%22%3A20%2C%22dt%22%3A1%2C%22p%22%3A11210%2C%22cc%22%3A2500%7D/d/%7B%22clientModel%22%3A%22HONOR+H30-L01%22%2C%22width%22%3A720%7D�"

把URL解码

//解码

NSString*str2 = [str stringByRemovingPercentEncoding];  (iOS9.0(包括9.0)以上使用)

NSString*str2 = [str stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding];  (iOS9.0以下使用)

把URL编码

//编码

//NSString*str3 =[str2 stringByAddingPercentEncodingWithAllowedCharacters:[NSCharacterSet characterSetWithCharactersInString:@"`#%^{}\"[]|\\<> "].invertedSet];

NSString*str3 = [str2 stringByAddingPercentEncodingWithAllowedCharacters:[NSCharacterSetURLQueryAllowedCharacterSet]]; (iOS9.0(包括9.0)以上使用)

NSString*str3 = [str2 stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding];  (iOS9.0以下使用)


原文地址: [iOS]URL编码和解码

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