layui中使用dtree插件数据无法正常显示

检查自己返回的josn数据格式和dtree需要的数据是否相同

示例格式：

{
    "code":0,
   "msg":"操作成功",
   "data":[
          {"id":"001","title": "湖南省", "spread":true,  "parentId": "0","checkArr": "{\"type\": \"0\", \"checked\": \"0\"}"},
          {"id":"002","title": "湖北省","spread":false, "parentId": "0","checkArr": "{\"type\": \"0\", \"checked\": \"0\"}"},
          
          {"id":"001001", "title": "长沙市",  "parentId": "001","checkArr": "{\"type\": \"0\", \"checked\": \"0\"}"},
          {"id":"001002", "title": "株洲市",  "parentId": "001" ,"checkArr": "{\"type\": \"0\", \"checked\": \"0\"}"},
          {"id":"001003", "title": "湘潭市",  "parentId": "001" ,"checkArr": "{\"type\": \"0\", \"checked\": \"0\"}"},
          {"id":"001004","title": "衡阳市", "parentId": "001","checkArr": "{\"type\": \"0\", \"checked\": \"0\"}"},
          {"id":"001005","title": "郴州市","parentId": "001","checkArr": "{\"type\": \"0\", \"checked\": \"0\"}"},
          
          {"id":"002001","title": "武汉市","parentId": "002","checkArr": "{\"type\": \"0\", \"checked\": \"0\"}"},
          {"id":"002002","title": "黄冈市","parentId": "002","checkArr": "{\"type\": \"0\", \"checked\": \"0\"}"},
          {"id":"002003","title": "荆州市","parentId": "002","checkArr": "{\"type\": \"0\", \"checked\": \"0\"}"},
          {"id":"002004","title": "天门市","parentId": "002","checkArr": "{\"type\": \"0\", \"checked\": \"0\"}"},
          {"id":"002005","title": "孝感市","parentId": "002","checkArr": "{\"type\": \"0\", \"checked\": \"0\"}"}
          ]
   }

我的数据格式

layui中使用dtree插件数据无法正常显示

原来是后端用实体类返回json的时候，实体类的属性名为pid，但是json需要的属性名为 parentId

通过实体类上加注解解决

public class TreeNode {
private Integer id;
@JsonProperty(value = "parentId")
private Integer pid;

private String title;

private String icon;

private String href;

private String target;

private Boolean spread;

public String getCheckArr() {
return checkArr;