“cannot deserialize instance of java.util.ArrayList out of START_OBJECT token”这个错误通常发生在使用Jackson或类似的JSON库进行反序列化时。这个错误意味着期望得到一个ArrayList的实例,但是从JSON数据中解析到的却是一个JSON对象(即START_OBJECT token),而不是预期的数组
//testAtoB() 发生:Can not deserialize instance of com.test.JSONTest$Hobby out of START_ARRAY token testBtoA(); //testBtoA() 发生:Can not deserialize instance of java.util.ArrayList out of START_OBJECT token } public static void testAtoB(){ List<Hobby> hobbies = new ArrayList<>(); Ran...
public ResponseResultscanPlateNumber(@RequestBody Integer plateId) { VehicleEntity vehicleEntity; try{ logger.info("批次发货--添加车牌id:"+plateId); 因为@RequestBody是将post请求中content值转为一个整体对象。@RequestBody的解析有两个条件: 1.POST请求中content的值必须为json格式(存储形式可以是字符串,...
//testAtoB() 发生:Can not deserialize instance of com.test.JSONTest$Hobby out of START_ARRAY token testBtoA(); //testBtoA() 发生:Can not deserialize instance of java.util.ArrayList out of START_OBJECT token } public static void testAtoB(){ List<Hobby> hobbies = new ArrayList<>(); Ran...
报错信息为: JSON parse error: Can not deserialize instance of java.util.ArrayList out of START_OBJECT token; nested exception is com.fasterxml.jackson.databind.JsonMappingException: Can not deserialize instance of java.util.ArrayList out of START_OBJECT token ...
In this short tutorial, we’ll shed light on how to fix the exceptionJsonMappingException: Can not deserialize instance of java.util.ArrayList from Object value (token `JsonToken.START_OBJECT`). First, we’ll highlight the main cause of the exception. Then we...
JSON parse error: Can not deserialize instance of java.lang.String out of START_OBJECT token; nested exception is com.fasterxml.jackson.databind.JsonMappingException: Can not deserialize instance of j 2019-06-19 22:40 − ... 封狼居胥_神都 0 21259 相关推荐 ...
(ThreadPoolExecutor.java:624)atjava.lang.Thread.run(Thread.java:748)Causedby:com.sun.jersey.api.client.ClientHandlerException:com.fasterxml.jackson.databind.JsonMappingException:Cannotdeserializeinstanceofjava.util.ArrayListoutofSTART_OBJECTtokenat[Source:sun.net.www.protocol.http.HttpURLConnection$HttpInput...
解决用户自生成meta导入kylin后报错问题Can not deserialize instance of java.lang.String[] out of VALUE_STRING token 2017-07-04 22:19 − ... 山君 0 4801 相关推荐 [java.lang.NoSuchMethodError: org.hibernate.Session.createQuery(Ljava/lang/String;)Lorg/hibernate/query/Query;] 2019-11-04 16...
今天在测试时Spring出现Can not deserialize instance of java.lang.Integer out of START_ARRAY token的错误 主要的问题原因是类型不匹配。 你需要检查前端上传的类型和后台定义的类型是否相同。 比如我的后台需要接受的是Integer类型,但是在前端却传的是String类型,因此报错。