首先,看一段异常:
org.springframework.http.converter.HttpMessageNotReadableException: Could not read document: Unrecognized token ‘entityList‘: was expecting (‘true‘, ‘false‘ or ‘null‘)
标记的是实体中定义的属性值,实体如下:
@Data public class ColumnsVO { List<GridColumnInfoEntity> entityList = new ArrayList<>(); }
前端js代码:
$.ajax({ url: ‘grid/add.columns‘, type: "POST", data: { entityList: rows }, success: function (data) { layer.msg(data.message); }, dataType: "json", contentType: "application/json"});
controller处理代码:
@RequestMapping(value = "/add", consumes = "application/json; charset=utf-8") public EasyuiResponse addColumns(@RequestBody ColumnsVO columnsVO) { System.out.println(JSON.toJSONString(columnsVO)); return new EasyuiResponse(EasyuiResponse.SUCCESS, "配置成功!"); }
之前$.ajax中data一直是使用{key:value}方式,这次也不例外,结果就报错了。。。
搜索、查找后解决方案:
$.ajax({ url: ‘grid/add.columns‘, type: "POST", data: JSON.stringify({ entityList: rows }), success: function (data) { layer.msg(data.message); }, dataType: "json", contentType: "application/json"});
和上面比,只有一点区别,将{key:value}使用JSON.stringify({key:value})转化为String后,一切正常!
一个比较奇怪的问题,记之。。。
另:spring mvc中传入集合需要注意的点:
1、看代码:
@RequestMapping(value = "/add", consumes = "application/json; charset=utf-8")public EasyuiResponse addColumns(@RequestBody ColumnsVO columnsVO) { System.out.println(JSON.toJSONString(columnsVO)); return new EasyuiResponse(EasyuiResponse.SUCCESS, "配置成功!");} 标记部分需要注意!
2、则是上文讨论部分,注意之!
时间: 2024-10-11 17:03:09