从Jackson JsonParser 获取原始属性文本

package org.example;

import com.fasterxml.jackson.core.JsonFactory;
import com.fasterxml.jackson.core.JsonParseException;
import com.fasterxml.jackson.core.JsonParser;
import com.fasterxml.jackson.core.JsonToken;

import java.io.IOException;

public class App {
    public static void main(String[] args) {
        JsonFactory factory = createJsonFactory(true);
        try (final JsonParser parser = factory.createParser("{ "value": "\\u0000" }")) {
            JsonToken token;
            while ((token = parser.nextValue()) != null) {
                switch (token) {
                    case VALUE_STRING:
                        String text = parser.getText();
                        System.out.println(text);
                        break;

                    default:
                        break;
                }
            }

        } catch (JsonParseException e) {
            throw new RuntimeException(e);
        } catch (IOException e) {
            throw new RuntimeException(e);
        }
    }

    public static JsonFactory createJsonFactory(boolean liberal) {
        JsonFactory factory = new JsonFactory();
        factory.configure(JsonParser.Feature.ALLOW_NON_NUMERIC_NUMBERS, true);

        // duplicates are handled in readValue
        factory.configure(JsonParser.Feature.STRICT_DUPLICATE_DETECTION, false);
        if (liberal) {
            factory.configure(JsonParser.Feature.ALLOW_COMMENTS, true);
            factory.configure(JsonParser.Feature.ALLOW_SINGLE_QUOTES, true);
            factory.configure(JsonParser.Feature.ALLOW_NUMERIC_LEADING_ZEROS, true);
            factory.configure(JsonParser.Feature.ALLOW_UNQUOTED_FIELD_NAMES, true);
            factory.configure(JsonParser.Feature.ALLOW_BACKSLASH_ESCAPING_ANY_CHARACTER, true);
        }
        return factory;
    }
}