IOS URL中文乱码问题解决方案

ios 解决url中文乱码问题解决

在做一个https连接时, 要客户端合成一段https地址

如果地址含中文的话程序会crash, 检查发现原来是中文没有转码的原因

在nsstring库里面找到了下面两个方法

- (nsstring *)stringbyaddingpercentescapesusingencoding:(nsstringencoding)encoding
- (nsstring *)stringbyreplacingpercentescapesusingencoding:(nsstringencoding)encoding

试了下, 有效

nsstring* string1 = @"https://www.cloudsafe.com/文件夹";

nsstring* string2 = [string1 stringbyaddingpercentescapesusingencoding:nsutf8stringencoding];
nsstring* string3 = [string2 stringbyaddingpercentescapesusingencoding:nsutf8stringencoding];

nsstring* string4 = [string2 stringbyreplacingpercentescapesusingencoding:nsutf8stringencoding];
nsstring* string5 = [string3 stringbyreplacingpercentescapesusingencoding:nsutf8stringencoding];

nsstring* string6 = [string4 stringbyreplacingpercentescapesusingencoding:nsutf8stringencoding];
nsstring* string7 = [string5 stringbyreplacingpercentescapesusingencoding:nsutf8stringencoding];

输出string1-7结果如下

string1:https://www.cloudsafe.com/文件夹

string2:https://www.cloudsafe.com/%e6%96%87%e4%bb%b6%e5%a4%b9
string3:https://www.cloudsafe.com/%25e6%2596%2587%25e4%25bb%25b6%25e5%25a4%25b9

string4:https://www.cloudsafe.com/文件夹
string5:https://www.cloudsafe.com/%e6%96%87%e4%bb%b6%e5%a4%b9

string6:https://www.cloudsafe.com/文件夹
string7:https://www.cloudsafe.com/文件夹

简单说下我是如何使用的:

在合成url后, 给整个string转码两次

nsmutablestring *address = [[nsmutablestring stringwithstring:setnichengstringwithoutusernameandnicheng] mutablecopy];
  address = [[address stringbyappendingstring:app.name] mutablecopy];
  address = [[address stringbyappendingstring:@"/"] mutablecopy];
  address = [[address stringbyappendingstring:_nametextfield.text] mutablecopy];
  address = [[address stringbyaddingpercentescapesusingencoding:nsutf8stringencoding] mutablecopy];
  address = [[address stringbyaddingpercentescapesusingencoding:nsutf8stringencoding] mutablecopy];

服务器端如何只是简单存储, 服务器接收数据后可以不用转码成中文

当客户端请求这部分数据时, 由客户端自己解码就好了

获取到字串后解码一次就可以正常显示为中文了:

 str = [str stringbyreplacingpercentescapesusingencoding:nsutf8stringencoding]; 

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