Cannot construct instance of `java.time.LocalDateTime`

異常信息：（很很明顯是反序列化錯誤）

Cannot construct instance of `java.time.LocalDateTime` (no Creators, like default construct, exist): no String-argument constructor/factory method to deserialize from String value ('2019-10-21 13:57:38')
 at [Source: UNKNOWN; line: -1, column: -1] (through reference chain: java.util.ArrayList[0]->com.construn.vehicle.tmrp.entity.IncomeSummaryRepInfo["createTime"]) 
java.lang.IllegalArgumentException: Cannot construct instance of `java.time.LocalDateTime` (no Creators, like default construct, exist): no String-argument constructor/factory method to deserialize from String value ('2019-10-21 13:57:38')
 at [Source: UNKNOWN; line: -1, column: -1] (through reference chain: java.util.ArrayList[0]->com.construn.vehicle.tmrp.entity.IncomeSummaryRepInfo["createTime"])

錯誤場景：數據庫createTime字段爲datetime類型；實體類中爲LocalDateTime類型；返回給前端，修改的時候，前端再返回來，就報了這個錯誤。（說明：我這裏，前端穿的是一個實體類list；在controller中用map接收的）

解決：我用的 ObjectMapper轉的list

List<xxxx> list1 = (List<xxxx>) map.get("list");
ObjectMapper mapper = new ObjectMapper();
//序列化的時候序列對象的所有屬性
mapper.disable(SerializationFeature.WRITE_DATES_AS_TIMESTAMPS);
mapper.registerModule(new JavaTimeModule());
List<xxxx> list = mapper.convertValue(list1, new TypeReference<List<xxxx>>() { });

主要是紅色兩行，其它的都是把前端傳的值轉換成list

 

說明：該場景只是本人遇到的，在對應的方法類轉換，這有可能不適用您，我是偷懶，直接在方法中寫，如果不實用，我想您可能要寫一個配置文件類了；