解決URL中文亂碼問題

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在做一個HTTPS串連時, 要用戶端合成一段HTTPS地址

如果地址含中文的話程式會crash, 檢查發現原來是中文沒有轉碼的原因

 

在NSString庫裡面找到了下面兩個方法

- (NSString *)stringByAddingPercentEscapesUsingEncoding:(NSStringEncoding)encoding- (NSString *)stringByReplacingPercentEscapesUsingEncoding:(NSStringEncoding)encoding

試了下, 有效

 1 NSString* string1 = @"https://www.cloudsafe.com/檔案夾"; 2  3 NSString* string2 = [string1 stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding]; 4 NSString* string3 = [string2 stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding]; 5  6 NSString* string4 = [string2 stringByReplacingPercentEscapesUsingEncoding:NSUTF8StringEncoding]; 7 NSString* string5 = [string3 stringByReplacingPercentEscapesUsingEncoding:NSUTF8StringEncoding]; 8  9 NSString* string6 = [string4 stringByReplacingPercentEscapesUsingEncoding:NSUTF8StringEncoding];10 NSString* string7 = [string5 stringByReplacingPercentEscapesUsingEncoding:NSUTF8StringEncoding];

輸出string1-7結果如下

string1:https://www.cloudsafe.com/檔案夾string2:https://www.cloudsafe.com/%E6%96%87%E4%BB%B6%E5%A4%B9string3:https://www.cloudsafe.com/%25E6%2596%2587%25E4%25BB%25B6%25E5%25A4%25B9string4:https://www.cloudsafe.com/檔案夾string5:https://www.cloudsafe.com/%E6%96%87%E4%BB%B6%E5%A4%B9string6:https://www.cloudsafe.com/檔案夾string7:https://www.cloudsafe.com/檔案夾

 

簡單說下我是如何使用的:

 

在合成URL後, 給整個String轉碼兩次

1 NSMutableString *address = [[NSMutableString stringWithString:SetNiChengStringWithoutUserNameAndNiCheng] mutableCopy];2     address = [[address stringByAppendingString:app.name] mutableCopy];3     address = [[address stringByAppendingString:@"/"] mutableCopy];4     address = [[address stringByAppendingString:_nameTextField.text] mutableCopy];5     address = [[address stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding] mutableCopy];6     address = [[address stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding] mutableCopy];

 

伺服器端如何只是簡單儲存, 伺服器接收資料後可以不用轉碼成中文

當用戶端請求這部分資料時, 由用戶端自己解碼就好了

擷取到字串後解碼一次就可以正常顯示為中文了:

1 str = [str stringByReplacingPercentEscapesUsingEncoding:NSUTF8StringEncoding];

 

解決URL中文亂碼問題