iOS UTF-8、URL解码与转码

80 阅读 0 评论 53 点赞

我是靠谱客的博主体贴水蜜桃，这篇文章主要介绍iOS UTF-8、URL解码与转码，现在分享给大家，希望可以做个参考。

UTF-8解码

复制代码

1
2
3
NSString* str= [@"%E4%B8%AD%E5%9B%BD" stringByReplacingPercentEscapesUsingEncoding:NSUTF8StringEncoding];
NSLog(@"strAfterDecodeByUTF8AndURI=%@", str);

UTF-8转码

复制代码

1
[@"我是中文" stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding];

URL编码

非ARC

复制代码

1
2
3
4
5
6
7
8
9
+(NSString *)getUrlStringFromString:(NSString *)aStr{
NSString *outputStr = (NSString *)
CFURLCreateStringByAddingPercentEscapes(kCFAllocatorDefault,
(CFStringRef)aStr,
NULL,
(CFStringRef)@"!*'();:@&=+$,/?%#[]",
kCFStringEncodingUTF8);
return outputStr;
}

ARC

复制代码

1
2
3
4
5
6
7
8
9
+(NSString *)getUrlStringFromString:(NSString *)urlStr{
NSString *outputStr = (__bridge NSString *)
CFURLCreateStringByAddingPercentEscapes(kCFAllocatorDefault,
(__bridge CFStringRef)urlStr,
NULL,
(CFStringRef)@"!*'();:@&=+$,/?%#[]",
kCFStringEncodingUTF8);
return outputStr;
}

URL解码

复制代码

1
2
3
4
5
6
7
8
9
10
11
+ (NSString *)decodeFromPercentEscapeString: (NSString *) urlStr
{
NSMutableString *outputStr = [NSMutableString stringWithString:urlStr];
[outputStr replaceOccurrencesOfString:@"+"
withString:@""
options:NSLiteralSearch
range:NSMakeRange(0,
[outputStr length])];
return [outputStr stringByReplacingPercentEscapesUsingEncoding:NSUTF8StringEncoding];
}