java 树形表的读取，望大牛解答怎么实现

实体结构

 @Table(name = "ent_check", schema = "")
public class EntCheckEntity extends IdEntity implements java.io.Serializable {
    /**父级检查事项*/
    private EntCheckEntity PCheck;
    /**检查事项*/
    private java.lang.String checkName;
    /**检查事项类型*/
    private java.lang.String checkType;
    /**下属检查事项*/
    private List<EntCheckEntity> EntCheckEntitys = new ArrayList<EntCheckEntity>();

页面展示效果：