Objective-C - 如何将NSString转换为转义的JSON字符串？

Question

我有一个可能包含引号的NSString,\,/,\ r,\n,我想将它转换为JSON编码的字符串,所以像这样的字符串

"文本1 \文本2"

变

\ "文本1 \\文本2 \"

是否有现成的功能让我这样做？

此外,我在我的项目中使用SBJson但我无法找到SBJson是否可以这样做.

NSJSONSerialization不在桌面上,因为我的应用程序仍然需要支持OSX 10.6

Answer 1

这回答了你的问题了吗？

-(NSString *)JSONString:(NSString *)aString {
    NSMutableString *s = [NSMutableString stringWithString:aString];
    [s replaceOccurrencesOfString:@"\"" withString:@"\\\"" options:NSCaseInsensitiveSearch range:NSMakeRange(0, [s length])];
    [s replaceOccurrencesOfString:@"/" withString:@"\\/" options:NSCaseInsensitiveSearch range:NSMakeRange(0, [s length])];
    [s replaceOccurrencesOfString:@"\n" withString:@"\\n" options:NSCaseInsensitiveSearch range:NSMakeRange(0, [s length])];
    [s replaceOccurrencesOfString:@"\b" withString:@"\\b" options:NSCaseInsensitiveSearch range:NSMakeRange(0, [s length])];
    [s replaceOccurrencesOfString:@"\f" withString:@"\\f" options:NSCaseInsensitiveSearch range:NSMakeRange(0, [s length])];
    [s replaceOccurrencesOfString:@"\r" withString:@"\\r" options:NSCaseInsensitiveSearch range:NSMakeRange(0, [s length])];
    [s replaceOccurrencesOfString:@"\t" withString:@"\\t" options:NSCaseInsensitiveSearch range:NSMakeRange(0, [s length])];
    return [NSString stringWithString:s];
}

来源:将NSString转换为JSON字符串