获取字符串的UTF8编码GB2312编码

//功能:获取字符串的UTF8编码

//参数:好友名

//参数:返回账户名的字符串

//备注:11/3 lilin 添加

-(NSString *)EncodeUTF8Str:(NSString *)encodeStr

{  

    CFStringRef nonAlphaNumValidChars = CFSTR("![        DISCUZ_CODE_1        ]’()*+,-./:;=?@_~");          

    NSString *preprocessedString = (NSString*)CFURLCreateStringByReplacingPercentEscapesUsingEncoding(kCFAllocatorDefault, (CFStringRef)encodeStr, CFSTR(""), kCFStringEncodingUTF8);          

    NSString *newStr = [(NSString*)CFURLCreateStringByAddingPercentEscapes(kCFAllocatorDefault,(CFStringRef)preprocessedString,NULL,nonAlphaNumValidChars,kCFStringEncodingUTF8) autorelease];  

    [preprocessedString release];  

    return newStr;          

}

 

//功能:获取字符串的GB2312编码

//参数:好友名

//参数:返回账户名的字符串

//备注:11/3 lilin 添加

-(NSString *)EncodeGB2312Str:(NSString *)encodeStr

{  

    CFStringRef nonAlphaNumValidChars = CFSTR("![        DISCUZ_CODE_1        ]’()*+,-./:;=?@_~");          

    

    NSString *preprocessedString = (NSString*)CFURLCreateStringByReplacingPercentEscapesUsingEncoding(kCFAllocatorDefault, (CFStringRef)encodeStr, CFSTR(""), kCFStringEncodingGB_18030_2000);          

    

    NSString *newStr = [(NSString*)CFURLCreateStringByAddingPercentEscapes(kCFAllocatorDefault,(CFStringRef)preprocessedString,NULL,nonAlphaNumValidChars,kCFStringEncodingGB_18030_2000) autorelease];  

    

    [preprocessedString release];  

    return newStr;          

} 

转载于:https://www.cnblogs.com/w-zhijun/archive/2012/11/13/2768973.html