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基于JPA的REST框架

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package com.kasinf.framework.rest.eneity.converter;

import cn.hutool.core.util.StrUtil;
import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.JSONException;

import javax.persistence.AttributeConverter;
import javax.persistence.Converter;

/**
 * JPA 2.1 属性转换器，将fastjson的JSONArray或JSONObject转换为字符串
 * @author lkhsh
 */
@Converter
public class JsonConverter implements AttributeConverter {
    @Override
    public String convertToDatabaseColumn(JSON attribute) {
        return attribute == null ? "" : JSON.toJSONString(attribute);
    }

    @Override
    public JSON convertToEntityAttribute(String dbData) {
        if (StrUtil.isEmpty(dbData)){
            return null;
        }
        JSON rtn;
        try {
            rtn = JSON.parseObject(dbData);
        } catch (JSONException e) {
            rtn = JSON.parseArray(dbData);
        }
        return rtn;
    }
}