JSON parse error: Illegal character ((CTRL-CHAR, code 31)): only regular white space (\\\\r, \\\\n,

最新推荐文章于 2025-05-07 16:02:17 发布

泗水六年

最新推荐文章于 2025-05-07 16:02:17 发布

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分类专栏： java 文章标签： json java

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本文分析了一个关于设备异常查询接口的内部服务器错误，错误发生在POST请求过程中，详细记录了HTTP状态码、错误类型及可能的原因，并提供了解决方案，通过调整方法类型从PostMapping到GetMapping并更改参数接收方式。

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错误：

{
    "timestamp": "2022-11-01T10:34:27.891+0000",
    "status": 500,
    "error": "Internal Server Error",
    "message": "[400] during [POST] to [http://iwater-d-s/device/exception/getDeviceExceptionsByAreaIdPage] [DeviceExceptionFeign#getDeviceExceptionsByAreaIdPage(Map)]: [{\"timestamp\":\"2022-11-01T10:34:27.888+0000\",\"status\":400,\"error\":\"Bad Request\",\"message\":\"JSON parse error: Illegal character ((CTRL-CHAR, code 31)): only regular white space (\\\\r, \\\\n, \\\\t) is allowe... (511 bytes)]",
    "path": "/data/area/findAreaExceptionList"
}

原因：

params = {LinkedHashMap@15894}  size = 5
 "limit" -> "500"
 "page" -> "1"
 "exception" -> "0"
 "areaIdByUserId" -> {ArrayList@18916}  size = 109
 "companyId" -> {Long@19258} 12

@PostMapping("/exception/getDeviceExceptionsByAreaIdPage")
PageResult<AreaDeviceExceptionCountDTO> getDeviceExceptionsByAreaIdPage(@RequestBody Map<String, Object> params);

@ApiOperation(value = "分页查询小区异常列表")
@PostMapping("/exception/getDeviceExceptionsByAreaIdPage")
public PageResult getDeviceExceptionsByAreaIdPage(@RequestBody Map<String,Object> params) {
	//List<Long> areaIdList = JsonUtil.toList(areaIds);
	return deviceExceptionService.getDeviceExceptionsByAreaIdPage(params);
}

解决：

@GetMapping("/exception/getDeviceExceptionsByAreaIdPage")
PageResult<AreaDeviceExceptionCountDTO> getDeviceExceptionsByAreaIdPage(@RequestBody Map<String, Object> params);

@ApiOperation(value = "分页查询小区异常列表")
@GetMapping("/exception/getDeviceExceptionsByAreaIdPage")
public PageResult getDeviceExceptionsByAreaIdPage(@RequestParam Map<String,Object> params) {
	//List<Long> areaIdList = JsonUtil.toList(areaIds);
	return deviceExceptionService.getDeviceExceptionsByAreaIdPage(params);
}