java - 在 jackson 转义正斜杠

Question

我使用 Jackson 生成 JSON 对象并将它们直接写入 HTML 的标记中，如下所示:

   <script>
     var data = $SomeJacksonWrapper.toJson($data);
   </script>

如果某些字符串包含 '</script>'，此代码将中断在里面。转义正斜杠 (/) 可以解决问题，并且 JSON 规范允许这样做。

如何在 Jackson 中启用它？

Answer 1

根据 StaxMan 的回答，我得到了以下代码:

   public class CustomCharacterEscapes extends CharacterEscapes {

     private static final Logger log = Logger.getLogger(CustomCharacterEscapes.class);

     private final int[] _asciiEscapes;

     public CustomCharacterEscapes() {
       _asciiEscapes = standardAsciiEscapesForJSON();
       _asciiEscapes['/'] = CharacterEscapes.ESCAPE_STANDARD;
     }

     @Override
     public int[] getEscapeCodesForAscii() {
       return _asciiEscapes;
     }

     @Override
     public SerializableString getEscapeSequence(int i) {
       return null;
    }
  }


    public class CustomObjectMapper extends ObjectMapper {

     public CustomObjectMapper() {
       this.getJsonFactory().setCharacterEscapes(new CustomCharacterEscapes());
     }

    }