【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】的更多相关文章

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

异常信息如下: 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 java.lang.String out of START_OBJECT token…

JSON parse error: Cannot deserialize instance of `int` out of START_OBJECT token; nested exception is com.fasterxml.jackson.databind.exc

代码程序: @PostMapping("selectById") @ResponseBody public Result selectById(@RequestBody int id) { Result result =new Result(); List<User> list = userService.selectById(id); if(list.size()==1){ result.setCode("000"); result.setMsg(&q…

Jackson错误：Can not deserialize instance of java.lang.String out of START_OBJECT token

org.springframework.http.converter.HttpMessageNotReadableException: Could not read JSON: Can not deserialize instance of java.lang.String out of START_OBJECT token at [Source: org.apache.http.conn.EofSensorInputStream@42b0f150; line: 1, column: 112]…

HttpMessageNotWritableException: Could not write JSON: Infinite recursion (StackOverflowError); nested exception is com.fasterxml.jackson.databind.JsonMappingException: Infinite

org.springframework.http.converter.HttpMessageNotWritableException: Could not write JSON: Infinite recursion (StackOverflowError); nested exception is com.fasterxml.jackson.databind.JsonMappingException: Infinite recursion (StackOverflowError) (throu…

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

报错栈: -- ::, ERROR [http-bio--exec-] cube.CubeManager: : Error during load cube instance, skipping : /cube/energon_dm_admission_record_fact_01.json java.lang.IllegalStateException: Failed to init CubeDescManager from kylin_metadata@hbase at org.apache…

Could not read document: Can not deserialize instance of java.lang.String out of START_ARRAY

线上问题: { "timestamp": "1544510665", "status": 400, "error": "Bad Request", "exception": "org.springframework.http.converter.HttpMessageNotReadableException", "message": "C…

记一次接口调试错误： {"timestamp":"2019-09-11T03:04:30.036+0000","status":500,"error":"Internal Server Error","message":"Could not write JSON: Object is null; nested exception is com.fasterxml.jackson

接口测试中用postman测试返回是正常的,但是使用其他人去调用就出错了,找了半天,才想起来使用了nginx,用于端口的代理转发.然后根据错误信息发现json格式的某个字段为null,结合日志中的报文: {"MSG":"查询成功","OPERATE_TIME":"1568170376","STATUS":"0000","state":null} 发现state对应的值…

400 bad Request： JackSon将json串转成List<Object>，异常com.fasterxml.jackson.databind.JsonMappingException

最近遇到的400, 以前总以为 400 就是参数不匹配造成的,直到今天遇到这个问题 控制台报错如下:  com.fasterxml.jackson.databind.JsonMappingException: Can not construct instance of com.infs.xyc.vo.......... 原因是: 封装参数的类中,重写了带参数的构造方法,却忘记生成默认的构造方法了 !!! 总结: 阴沟里也容易翻船…

JSON parse error: default constructor not found. class java.time.YearMonth; nested exception is com.alibaba.fastjson.JSONException: default constructor not found. class java.time.YearMonth

java8新出的YearMonth可以方便的用来表示某个月.我的项目中使用springmvc来接收YearMonth类型的数据时发现 x-www-from-urlencoded 格式的数据可以使用"2018-12"的类型接收,但是在post请求中 接收application/json的数据时出现以下错误 2020-02-18 11:18:25.284 WARN 16212 --- [nio-8090-exec-2] .w.s.m.s.DefaultHandlerExceptionRes…

Json解析异常处理方式（JSONException: Value of type java.lang.String cannot be converted to JSONObject）

有一次从服务器解析获取到的Json字符串突然报了这个异常,由于这个json是从 php页面上推送过来的,当时就查是不是由于编码问题引起的,所以就上网搜了,网上大部分都是说由于utf-8的bom头引起的,让去掉bom头,但是也 没解决了,即使在本地进行处理json字符串将bom头去掉,但是也不行.json字符串格式也没问题,所以可以肯定的是json字符内部有无法识别或者 未知的字符,所以当时就把当时得到的json字符串进行了如下处理: String jsonStr = httpTools.doGe…