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

问题描述

我有一个可以包含引号的NSString，\，/，\r，\\\
，我想将其转换为JSON编码的字符串，因此这样的字符串

成为

是有现在的功能让我这样做吗？

此外，我在我的项目中使用SBJson，但是找不到SBJson是否可以执行此操作。

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

解决方案

这是否回答你的问题？ >

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

资料来源：

I have a NSString that may contain quotes,\, /, \r, \n, and I want to convert it to a JSON encoded string so strings like this

becomes

Is there a existing function to let me do this?

Also, I am using SBJson in my project but I cannot find whether SBJson can do this or not.

NSJSONSerialization is not on the table since my application still needs to support OSX 10.6

解决方案

Does this answer your question?

-(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];
}

Source: converting NSString to JSON string

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