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

【JSON parse error: Cannot deserialize instance of `int` out of START_OBJECT token; nested exception is com.fasterxml.jackson.databind.exc】的更多相关文章

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…

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…

SpringMVC接口测试异常：Can not deserialize instance of int out of START_OBJECT token

之前使用springmvc搭建了restful风格的接口服务,在使用mockmvc进行集成测试的时候出现了异常:Can not deserialize instance of int out of START_OBJECT token.为什么会出现这个问题?怎么解决这个问题呢?接下来本文详细分析讲解这个问题. 一.问题展现接口代码 @ResponseBody @RequestMapping(value = "/m1", method = RequestMethod.POST) @Ap…

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

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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…