java保存com.alibaba.fastjson.JSONArray格式到数据库报错

添加数据时候报错信息：

java.lang.IllegalStateException: Type handler was null on parameter mapping for property '__frch_item_17'. It was either not specified and/or could not be found for the javaType (com.alibaba.fastjson.JSONArray) : jdbcType (null) combination.

解决：这是因为JSON格式中有对应的字段是数据库的表中不存在的，所以我们要在添加字段的时候，把无法序列化的字段给它remove掉再保存

		JSONObject target = param.getRequestParameter();
        target.remove("standardProjectTargets");