URL乱码问题

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：

 

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：

 

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：

 

 

1.NSStringEncoding gbkEncoding = CFStringConvertEncodingToNSStringEncoding(kCFStringEncodingGB_18030_2000);
2.urlString = [urlString stringByReplacingPercentEscapesUsingEncoding:gbkEncoding];

版权声明：本文为博主原创文章，未经博主允许不得转载。

 

posted @ 2015-07-10 09:04  _随风㔾  阅读(182)  评论(0)  编辑  收藏  举报