IOS 字典转json 解决全角问题

引用头文件 <pre name="code" class="objc">JSONKit.h

<span style="font-family: Arial, Helvetica, sans-serif;">// 字典转成json，解决全角问题</span>

-(NSString *) toJson:(NSMutableDictionary*)dic
{
    // 转换成json
    NSString * string =[dic JSONString];
    
    NSUInteger length = [string length];
    NSMutableString *s = [NSMutableString stringWithCapacity:0];    

    // 全角没有转换成unicode，再进行转换
    for (int i = 0;i < length; i++)
    {
        const char *p;
        
        NSString * isChar = [string substringWithRange:NSMakeRange(i, 1)];
        
        p = [isChar UTF8String];
        
        // 判断是不是全角字符
        if ((*p)&0x80) {
            NSString *str = [NSString stringWithFormat:@"\\u%x", [string characterAtIndex:i]];
            if (str.length == 6) {
                [s appendString:str];
            } else {
                str = [NSString stringWithFormat:@"\\u00%x", [string characterAtIndex:i]];
                
                [s appendString:str];
            }
        } else {
            [s appendFormat:@"%@",[string substringWithRange:NSMakeRange(i, 1)]];
        }
    }
    
    return s;
}

IOS 字典转json 解决全角问题

原文：http://blog.csdn.net/liuxiaoming1109/article/details/45575213