针对你提到的错误信息 "cannot deserialize instance of java.util.arraylist out of value_string token",我们可以从以下几个方面进行分析和解决: 1. 理解错误信息 这个错误通常表示在尝试从JSON字符串中反序列化一个ArrayList对象时,JSON数据并不是一个有效的数组结构,而是一个简单的值(如字符串、数字等)。 2. ...
用postman测试接口给一个后端实体属性类型为List数组的参数传参,报错“Cannot deserialize instance of `java.util.ArrayList<java.lang.Object>` out of VALUE_STRING token”,原因是在数据映射过程中,数据类型不兼容以致于在相互转化时出错,解决该问题需要将参数用[]括起来,例如:...
/add : JSON parse error: Cannot deserialize instance of java.util.ArrayList<java.lang.Object> out of VALUE_STRING token; nested exception is com.fasterxml.jackson.databind.exc.MismatchedInputException: Cannot deserialize instance of java.util.ArrayList<java.lang.Object> out of VALUE_STRING token...
Postman传递Josn字段报错:Cannot deserialize instance of java.util.ArrayList<java.lang.Object> out of VALUE_STRING token 问题: 2021-08-02 10:15:07.816 ERROR 9796 --- [nio-8082-exec-6] c.y.c.b.e.GlobalExceptionHandler : /training/add : JSON parse error: Cannot deserialize i...
private String fileName; private MultipartFile attachment; private String ticketNo; private String dmsRefId; enter code here Caused by: com.fasterxml.jackson.databind.JsonMappingException: Can not deserialize instance of java.util.ArrayList out of VALUE_STRING token at [Source: org.apache.catalina.conne...
getStringValue(), Asset.class); System.out.println(asset); queryResults.add(asset); } final String response = genson.serialize(queryResults); return response; } } 这段代码是一个基于Hyperledger Fabric框架的资产转移合约。让我逐行解释它的功能和结构。 首先,在代码开头的注释部分,指定了代码的许可...
lock(); try { returnnew ArrayList<>(m.keySet()); } finally { r.unlock(); } } public Data put(String key, Data value) { w.lock(); try { return m.put(key, value); } finally { w.unlock(); } } public void clear() { w.lock(); try { m.clear(); } finally { w.unlock...
value) -> { if (value instanceof Map) { Map<String, Object> data = (Map<String, Object>) value; Map<String, Object> maskedData = new HashMap<>(data); // 脱敏常见敏感字段 maskField(maskedData, "password"); maskField(maskedData, "passwordHash"); maskField(maskedData, "token"); ...
The field value can be ANY to enable any supported cryptocurrency or a single currency code such as BTC for Bitcoin.package com.blockchyp.client.examples; import java.util.ArrayList; import java.util.Collection; import com.fasterxml.jackson.databind.ObjectMapper; import com.fasterxml.jackson.databind...
org.springframework.http.converter.HttpMessageNotReadableException: Could not read document: Can not deserialize instance of java.util.ArrayList out of VALUE_STRING token(前台向后台传递list) 1.定义订单实体类 2.定义实体类中集合的实体类 3.在controller中接收...