說到URL包含中文字段這個問題,咱們必需要知道NSURL在初始化一個實例對象時,如: [NSURL URLWithString:url] 或 ios
[NSURL fileURLWithPath:path];返回的nsurl對象爲nil或是對象的連接是亂碼。web
網址示例:xcode
NSString *urlstr = @"http://odqaqbbj4.bkt.clouddn.com/pic_中文字段_20160921191844";網絡
對網址進行轉碼編碼
NSString *url = [urlstr stringByAddingPercentEncodingWithAllowedCharacters:[NSCharacterSet characterSetWithCharactersInString:@"`#%^{}\"[]|\\<> "].invertedSet];url
加載圖片spa
[cell.imgView sd_setImageWithURL:[NSURL URLWithString:url] placeholderImage:[UIImage imageNamed:@"adPlaceholder"]];code
就OK了。視頻
我是在使用sdwebimage加載圖片時,遇到的這個問題。轉碼過程當中的@"`#%^{}\"[]|\\<> "這一部分我是在網上看到的,至於爲何是這樣,我也不是很明白,具體可參考這篇博客:http://www.aichengxu.com/view/82953。對象
加載網絡視頻時,若是URL有中文字段,
NSCharacterSet *encodeSet = [NSCharacterSet URLQueryAllowedCharacterSet];
NSString *encodeUrl = [urlString stringByAddingPercentEncodingWithAllowedCharacters:encodeSet];
NSURL *URL= [NSURL URLWithString:encodeUrl];
(1) 網絡訪問請求:中文空格字符編碼/解碼 stringByAddingPercentEscapesUsingEncoding(只對 `#%^{}[]|\"<> 加空格共14個字符編碼,不包括」&?」等符號), ios9將淘汰,建議用stringByAddingPercentEncodingWithAllowedCharacters方法 URLFragmentAllowedCharacterSet "#%<>[\]^`{|} URLHostAllowedCharacterSet "#%/<>?@\^`{|} URLPasswordAllowedCharacterSet "#%/:<>?@[\]^`{|} URLPathAllowedCharacterSet "#%;<>?[\]^`{|} URLQueryAllowedCharacterSet "#%<>[\]^`{|} URLUserAllowedCharacterSet "#%/:<>?@[\]^` (2)網絡訪問請求:中文空格字符解碼 stringByRemovingPercentEncoding ---- xcode7可能會提示要將stringByAddingPercentEscapesUsingEncoding替換成此方法,要根據是不是解碼來區分 */ //代替stringByAddingPercentEscapesUsingEncoding let customAllowedSet = NSCharacterSet(charactersInString:"`#%^{}\"[]|\\<> ").invertedSet
NSString * resourcePath = @"https://www.xiaocaobank.com"; NSString *encodePath ; if (!IOS7_OR_LATER) { encodePath = [resourcePath stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding]; }else{ encodePath = [resourcePath stringByAddingPercentEncodingWithAllowedCharacters:[NSCharacterSet characterSetWithCharactersInString:@"`#%^{}\"[]|\\<> "].invertedSet]; }