JsonUtils 棄用fastJson

場景：目前fastJson其實也是經常報漏洞，動不動要升級，確實是一個讓人頭疼的事情，所以，現在打算棄用fastJosn。自己寫了個基礎的常用的Java代碼來專門做這個處理，後續會完善補充：

@Slf4j
public class JsonUtils {
    private static Gson gson = new Gson();

    private static final org.codehaus.jackson.map.ObjectMapper MAPPER = new org.codehaus.jackson.map.ObjectMapper();

    static {
        MAPPER.configure(JsonParser.Feature.ALLOW_UNQUOTED_FIELD_NAMES, true);
        MAPPER.configure(JsonParser.Feature.ALLOW_SINGLE_QUOTES, true);
        MAPPER.configure(DeserializationConfig.Feature.FAIL_ON_UNKNOWN_PROPERTIES, false);
    }

    /**
     * 將String轉化爲List
     *
     * @param string
     * @return
     */
    public static List stringToList(String string) {
        if (StringUtils.isBlank(string)) {
            return new ArrayList();
        }
        return gson.fromJson(string, new TypeToken<List>() {
        }.getType());
    }


    /**
     * 將對象轉換爲JSON格式
     *
     * @param model
     * @return
     * @throws IOException
     */
    public static String toStr(Object model) {
        if(Objects.isNull(model)){
            return null;
        }
        try {
            return MAPPER.writeValueAsString(model);
        } catch (IOException e) {
            log.error("JSON: toStr error : {}", model, e);
        }
        return null;
    }

    /**
     * 將JSON字符串轉換爲指定類實例
     *
     * @param <T>
     * @param content
     * @param clazz
     * @return
     * @throws IOException
     */
    public static <T> T fromStr(String content, Class<T> clazz) {
        if(StringUtils.isBlank(content)){
            return null;
        }
        try {
            return MAPPER.readValue(content, clazz);
        } catch (IOException e) {
            log.error("JSON: fromStr error {}", content, e);
        }
        return null;
    }

    /**
     * 將JSON字符串轉換爲Map
     *
     * @param content
     * @return
     * @throws IOException
     */
    @SuppressWarnings("unchecked")
    public static Map<String, Object> fromStrToMap(String content)  {
        return fromStr(content, Map.class);
    }
}