URL乱码问题

来源：互联网发布：编程语言趋势编辑：程序博客网时间：2024/05/16 19:20

01.// 将URL编码

02.- (NSString *)encodeToPercentEscapeString: (NSString *) input

03.{

04.NSString *outputStr = (NSString *) CFBridgingRelease(CFURLCreateStringByAddingPercentEscapes(kCFAllocatorDefault,

05.(CFStringRef)input,

06.NULL,

07.(CFStringRef)@"!*'();:@&=+$,/?%#[]",

08.kCFStringEncodingUTF8));

09.return outputStr;

10.}

11.

12.// 将URL解码

13.- (NSString *)decodeFromPercentEscapeString: (NSString *) input

14.{

15.NSMutableString *outputStr = [NSMutableString stringWithString:input];

16.[outputStr replaceOccurrencesOfString:@"+"

17.withString:@" "

18.options:NSLiteralSearch

19.range:NSMakeRange(0, [outputStr length])];

20.

21.return [outputStr stringByReplacingPercentEscapesUsingEncoding:NSUTF8StringEncoding];

22.}

演示一下上面的封装函数：

view sourceprint?

01.NSString * testUrl = @"http://search.google.com?key<;a href="http://www.it165.net/edu/ebg/" target="_blank" class="keylink">word</a>s=($# it's {a*123})00!*'();:@&=+$,/?%#[]";

02.NSLog(@"original: %@", testUrl);

03.

04.

05.NSString * encodeStr = [self encodeToPercentEscapeString:testUrl];

06.NSLog(@"encoded: %@", encodeStr);

07.

08.NSString * encodeStr2 = [testUrl stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding];

09.NSLog(@"encoded2:%@", encodeStr2);

10.

11.NSString * decodeStr = [self decodeFromPercentEscapeString:encodeStr];

12.NSLog(@"decoded: %@", decodeStr);

结果如下：

>> original: http://search.google.com?keywords=($# it's {a*123})00!*'();:@&=+$,/?%#[]
>> encoded: http%3A%2F%2Fsearch.google.com%3Fkeywords%3D%28%24%23%20it%27s%20%7Ba%2A123%7D%2900%21%2A%27%28%29%3B%3A%40%26%3D%2B%24%2C%2F%3F%25%23%5B%5D
>> encoded2: http://search.google.com?keywords=($%23%20it's%20%7Ba*123%7D)00!*'();:@&=+$,/?%25%23%5B%5D
>> decoded: http://search.google.com?keywords=($# it's {a*123})00!*'();:@&=+$,/?%#[]

演示一下自带的URL转码测试代码：

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

02.

03.NSString* string2 = [string1 stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding];

04.

05.NSString* string3 = [string2 stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding];

06.

07.NSString* string4 = [string2 stringByReplacingPercentEscapesUsingEncoding:NSUTF8StringEncoding];

08.

09.NSString* string5 = [string3 stringByReplacingPercentEscapesUsingEncoding:NSUTF8StringEncoding];

10.

11.NSString* string6 = [string4 stringByReplacingPercentEscapesUsingEncoding:NSUTF8StringEncoding];

12.

13.NSString* string7 = [string5 stringByReplacingPercentEscapesUsingEncoding:NSUTF8StringEncoding];

14.

15.

16.NSLog(@"原始数据%@",string1);

17.NSLog(@"一层编码%@",string2);

18.NSLog(@"两层编码%@",string3);

19.NSLog(@"一层编码的一层解码%@",string4);

20.NSLog(@"两层编码的一层解码%@",string5);

21.NSLog(@"一层编码的两层解码%@",string6);

22.NSLog(@"两层编码的两层解码%@",string7);

打印结果：

2014-06-10 15:00:02.425 DareWayApp[7400:671651] 原始数据https://www.cloudsafe.com/文件夹

2014-06-10 15:00:02.426 DareWayApp[7400:671651] 一层编码https://www.cloudsafe.com/%E6%96%87%E4%BB%B6%E5%A4%B9

2014-06-10 15:00:02.427 DareWayApp[7400:671651] 两层编码https://www.cloudsafe.com/%25E6%2596%2587%25E4%25BB%25B6%25E5%25A4%25B9

2014-06-10 15:00:02.427 DareWayApp[7400:671651] 一层编码的一层解码https://www.cloudsafe.com/文件夹

2014-06-10 15:00:02.427 DareWayApp[7400:671651] 两层编码的一层解码https://www.cloudsafe.com/%E6%96%87%E4%BB%B6%E5%A4%B9

2014-06-10 15:00:02.427 DareWayApp[7400:671651] 一层编码的两层解码https://www.cloudsafe.com/文件夹

2014-06-10 15:00:02.427 DareWayApp[7400:671651] 两层编码的两层解码https://www.cloudsafe.com/文件夹

如果服务器用的是GBK编码，只要把上面的UTF改成下面的encoding就可以了：

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1.NSStringEncoding gbkEncoding = CFStringConvertEncodingToNSStringEncoding(kCFStringEncodingGB_18030_2000);

2.urlString = [urlString stringByReplacingPercentEscapesUsingEncoding:gbkEncoding];

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