标签:ati number ystemd pass exce enc ring emd column
今天在进行进行数据转换的时候遇到一个异常,java.util.LinkedHashMap cannot be cast to xxx,其中最关键的就是Expected BEGIN_OBJECT but was STRING at line 1 column 644 path $[0].validEndDateTime。异常原因已经很详细了,就是在转换的时候String类型的数据转换成ZonedDateTime出现的问题。经过google之后,我使用如下的办法解决Bug。
引用jar包:
<dependency> <groupId>com.google.code.gson</groupId> <artifactId>gson</artifactId> </dependency>
工具类
public class GsonUtil { public static final JsonDeserializer<ZonedDateTime> ZDT_DESERIALIZER = new JsonDeserializer<ZonedDateTime>() { @Override public ZonedDateTime deserialize(final JsonElement json, final Type typeOfT, final JsonDeserializationContext context) throws JsonParseException { JsonPrimitive jsonPrimitive = json.getAsJsonPrimitive(); try { // if provided as String - ‘2011-12-03T10:15:30+01:00[Europe/Paris]‘ if(jsonPrimitive.isString()){ return ZonedDateTime.parse(jsonPrimitive.getAsString(), DateTimeFormatter.ISO_ZONED_DATE_TIME); } // if provided as Long if(jsonPrimitive.isNumber()){ return ZonedDateTime.ofInstant(Instant.ofEpochMilli(jsonPrimitive.getAsLong()), ZoneId.systemDefault()); } } catch(RuntimeException e){ throw new JsonParseException("Unable to parse ZonedDateTime", e); } throw new JsonParseException("Unable to parse ZonedDateTime"); } }; }
运行code
List<TicketAndPassEntitlement> ticketList = new GsonBuilder() .registerTypeAdapter(ZonedDateTime.class, GsonUtil.ZDT_DESERIALIZER) .create() .fromJson(new Gson().toJson(resourceList), new TypeToken<List<TicketAndPassEntitlement222>>(){}.getType());
解释:
new Gson().toJson(resourceList)的目的是将List<LinkedHashMap>转换成Gson格式的数据。
GsonUtil工具类是为了解决String转成ZonedDateTime的问题。
LinkedHashMap转成实体类时遇到String转ZonedDateTime异常
标签:ati number ystemd pass exce enc ring emd column
原文地址:https://www.cnblogs.com/daishoucheng/p/12530768.html