Javaは親ノードに基づいてすべての子ノードを再帰する

@Data
@NoArgsConstructor
@AllArgsConstructor
public class OrgExcelCnDTO {
    //    
    @Excel(name = "    *", width = 30,orderNum = "0")
    private String excelNumberId;

    //    
    @Excel(name = "    *", width = 30,orderNum = "1")
    private String name;

    //      
    @Excel(name = "      * (        )", width = 35,orderNum = "2")
    private String parentExcelNumberId;

    //    (1.     2.    )
    //@Excel(name = "    (  /  )", replace = {"  _1", "  _2"}, width = 40,orderNum = "3")
    @Excel(name = "    (  /  )", width = 40,orderNum = "3")
    private String excelType;

    private Integer type;

    //    (1.     2.     3.     )
    //@Excel(name = "    (    /    /     )", replace = {"    _1", "    _2", "     _3"}, width = 50,orderNum = "4")
    @Excel(name = "    (    /    /     )", width = 50,orderNum = "4")
    private String excelCategory;

    .....
    .....
}

OrgExcelCnDTO(excelNumberId=1, name=      , parentExcelNumberId=null, excelType=null, type=null, excelCategory=null, category=null, note=null, id=null, code=null, parentId=null, createUser=null, createTime=null, modifyUser=null, modifyTime=null, errorMsg=null)
OrgExcelCnDTO(excelNumberId=2, name=       , parentExcelNumberId=null, excelType=null, type=null, excelCategory=null, category=null, note=null, id=null, code=null, parentId=null, createUser=null, createTime=null, modifyUser=null, modifyTime=null, errorMsg=null)
OrgExcelCnDTO(excelNumberId=3, name=   001   3, parentExcelNumberId=2, excelType=null, type=null, excelCategory=null, category=null, note=null, id=null, code=null, parentId=null, createUser=null, createTime=null, modifyUser=null, modifyTime=null, errorMsg=null)
OrgExcelCnDTO(excelNumberId=4, name=  001   4, parentExcelNumberId=1, excelType=null, type=null, excelCategory=null, category=null, note=null, id=null, code=null, parentId=null, createUser=null, createTime=null, modifyUser=null, modifyTime=null, errorMsg=null)
OrgExcelCnDTO(excelNumberId=5, name=   001   5, parentExcelNumberId=2, excelType=null, type=null, excelCategory=null, category=null, note=null, id=null, code=null, parentId=null, createUser=null, createTime=null, modifyUser=null, modifyTime=null, errorMsg=null)
OrgExcelCnDTO(excelNumberId=6, name=  001   6, parentExcelNumberId=1, excelType=null, type=null, excelCategory=null, category=null, note=null, id=null, code=null, parentId=null, createUser=null, createTime=null, modifyUser=null, modifyTime=null, errorMsg=null)
OrgExcelCnDTO(excelNumberId=7, name=   001   7, parentExcelNumberId=2, excelType=null, type=null, excelCategory=null, category=null, note=null, id=null, code=null, parentId=null, createUser=null, createTime=null, modifyUser=null, modifyTime=null, errorMsg=null)
OrgExcelCnDTO(excelNumberId=8, name=  001   8, parentExcelNumberId=1, excelType=null, type=null, excelCategory=null, category=null, note=null, id=null, code=null, parentId=null, createUser=null, createTime=null, modifyUser=null, modifyTime=null, errorMsg=null)
OrgExcelCnDTO(excelNumberId=9, name=  002   9, parentExcelNumberId=6, excelType=null, type=null, excelCategory=null, category=null, note=null, id=null, code=null, parentId=null, createUser=null, createTime=null, modifyUser=null, modifyTime=null, errorMsg=null)
OrgExcelCnDTO(excelNumberId=10, name=  002   10, parentExcelNumberId=6, excelType=null, type=null, excelCategory=null, category=null, note=null, id=null, code=null, parentId=null, createUser=null, createTime=null, modifyUser=null, modifyTime=null, errorMsg=null)
OrgExcelCnDTO(excelNumberId=11, name=  002   11, parentExcelNumberId=6, excelType=null, type=null, excelCategory=null, category=null, note=null, id=null, code=null, parentId=null, createUser=null, createTime=null, modifyUser=null, modifyTime=null, errorMsg=null)
OrgExcelCnDTO(excelNumberId=12, name=  002   12, parentExcelNumberId=6, excelType=null, type=null, excelCategory=null, category=null, note=null, id=null, code=null, parentId=null, createUser=null, createTime=null, modifyUser=null, modifyTime=null, errorMsg=null)
OrgExcelCnDTO(excelNumberId=13, name=  002   13, parentExcelNumberId=6, excelType=null, type=null, excelCategory=null, category=null, note=null, id=null, code=null, parentId=null, createUser=null, createTime=null, modifyUser=null, modifyTime=null, errorMsg=null)
OrgExcelCnDTO(excelNumberId=14, name=  002   14, parentExcelNumberId=6, excelType=null, type=null, excelCategory=null, category=null, note=null, id=null, code=null, parentId=null, createUser=null, createTime=null, modifyUser=null, modifyTime=null, errorMsg=null)
OrgExcelCnDTO(excelNumberId=15, name=  002   15, parentExcelNumberId=6, excelType=null, type=null, excelCategory=null, category=null, note=null, id=null, code=null, parentId=null, createUser=null, createTime=null, modifyUser=null, modifyTime=null, errorMsg=null)
OrgExcelCnDTO(excelNumberId=16, name=   002   16, parentExcelNumberId=7, excelType=null, type=null, excelCategory=null, category=null, note=null, id=null, code=null, parentId=null, createUser=null, createTime=null, modifyUser=null, modifyTime=null, errorMsg=null)
OrgExcelCnDTO(excelNumberId=17, name=   002   17, parentExcelNumberId=7, excelType=null, type=null, excelCategory=null, category=null, note=null, id=null, code=null, parentId=null, createUser=null, createTime=null, modifyUser=null, modifyTime=null, errorMsg=null)
OrgExcelCnDTO(excelNumberId=18, name=   002   18, parentExcelNumberId=7, excelType=null, type=null, excelCategory=null, category=null, note=null, id=null, code=null, parentId=null, createUser=null, createTime=null, modifyUser=null, modifyTime=null, errorMsg=null)
OrgExcelCnDTO(excelNumberId=19, name=   002   19, parentExcelNumberId=7, excelType=null, type=null, excelCategory=null, category=null, note=null, id=null, code=null, parentId=null, createUser=null, createTime=null, modifyUser=null, modifyTime=null, errorMsg=null)
OrgExcelCnDTO(excelNumberId=20, name=   002   20, parentExcelNumberId=7, excelType=null, type=null, excelCategory=null, category=null, note=null, id=null, code=null, parentId=null, createUser=null, createTime=null, modifyUser=null, modifyTime=null, errorMsg=null)

    //            
    public static List getChildNodes(List list, String parentId) {
        for (OrgExcelCnDTO dto : list) {
            //    id     id，add      
            if (parentId.equals(dto.getParentExcelNumberId())) {
                //       
                getChildNodes(list,dto.getExcelNumberId());
                orgChildNodes.add(dto);
            }
        }
        return orgChildNodes;
    }

package com.hierway.ims.employee.util;

import com.hierway.ims.employee.controller.resp.OrgExcelCnDTO;
import org.junit.runner.RunWith;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.test.context.junit4.SpringRunner;

import java.util.ArrayList;
import java.util.List;

/**
 * @Description
 * @Author by mocar   
 * @Date 2020/6/12 17:30
 **/
public class RecursiveTest {
    //   
    public static List orgChildNodes = new ArrayList();

    public static void main(String[] args) {
        List data = getData();
        List childNodes = getChildNodes(data, "1");
        System.out.println();
        System.out.println();
        System.out.println("--------------      -------------");
        childNodes.forEach(vo-> System.out.println(vo));
    }

    public static List getChildNodes(List list, String parentId) {
        for (OrgExcelCnDTO dto : list) {
            //    id     id，add      
            if (parentId.equals(dto.getParentExcelNumberId())) {
                //       
                getChildNodes(list,dto.getExcelNumberId());
                orgChildNodes.add(dto);
            }
        }
        return orgChildNodes;
    }


    public static List getData(){
        List list = new ArrayList<>();
        OrgExcelCnDTO orgExcelCnDTO = new OrgExcelCnDTO();
        OrgExcelCnDTO orgExcelCnDTO2 = new OrgExcelCnDTO();
        orgExcelCnDTO.setExcelNumberId("1");
        orgExcelCnDTO.setName("      ");
        orgExcelCnDTO2.setExcelNumberId("2");
        orgExcelCnDTO2.setName("       ");
        list.add(orgExcelCnDTO);
        list.add(orgExcelCnDTO2);
        for (Integer i = 3; i <= 8; i++) {
            OrgExcelCnDTO temOrg = new OrgExcelCnDTO();
            temOrg.setExcelNumberId(i.toString());
            if (i % 2 == 0) {
                temOrg.setName("  001   " + i);
                temOrg.setParentExcelNumberId("1");
            } else {
                temOrg.setName("   001   " + i);
                temOrg.setParentExcelNumberId("2");
            }
            list.add(temOrg);
        }
        for (Integer i = 9; i <= 15; i++) {
            OrgExcelCnDTO temppOrg = new OrgExcelCnDTO();
            temppOrg.setExcelNumberId(i.toString());
            temppOrg.setName("  002   " + i);
            temppOrg.setParentExcelNumberId("6");
            list.add(temppOrg);
        }

        for (Integer i = 16; i <= 20; i++) {
            OrgExcelCnDTO temppOrg = new OrgExcelCnDTO();
            temppOrg.setExcelNumberId(i.toString());
            temppOrg.setName("   002   " + i);
            temppOrg.setParentExcelNumberId("7");
            list.add(temppOrg);
        }
        list.forEach(vo-> System.out.println(vo));
        return list;
    }
}

OrgExcelCnDTO(excelNumberId=1, name=      , parentExcelNumberId=null, excelType=null, type=null, excelCategory=null, category=null, note=null, id=null, code=null, parentId=null, createUser=null, createTime=null, modifyUser=null, modifyTime=null, errorMsg=null)
OrgExcelCnDTO(excelNumberId=4, name=  001   4, parentExcelNumberId=1, excelType=null, type=null, excelCategory=null, category=null, note=null, id=null, code=null, parentId=null, createUser=null, createTime=null, modifyUser=null, modifyTime=null, errorMsg=null)
OrgExcelCnDTO(excelNumberId=6, name=  001   6, parentExcelNumberId=1, excelType=null, type=null, excelCategory=null, category=null, note=null, id=null, code=null, parentId=null, createUser=null, createTime=null, modifyUser=null, modifyTime=null, errorMsg=null)
OrgExcelCnDTO(excelNumberId=8, name=  001   8, parentExcelNumberId=1, excelType=null, type=null, excelCategory=null, category=null, note=null, id=null, code=null, parentId=null, createUser=null, createTime=null, modifyUser=null, modifyTime=null, errorMsg=null)
OrgExcelCnDTO(excelNumberId=9, name=  002   9, parentExcelNumberId=6, excelType=null, type=null, excelCategory=null, category=null, note=null, id=null, code=null, parentId=null, createUser=null, createTime=null, modifyUser=null, modifyTime=null, errorMsg=null)
OrgExcelCnDTO(excelNumberId=10, name=  002   10, parentExcelNumberId=6, excelType=null, type=null, excelCategory=null, category=null, note=null, id=null, code=null, parentId=null, createUser=null, createTime=null, modifyUser=null, modifyTime=null, errorMsg=null)
OrgExcelCnDTO(excelNumberId=11, name=  002   11, parentExcelNumberId=6, excelType=null, type=null, excelCategory=null, category=null, note=null, id=null, code=null, parentId=null, createUser=null, createTime=null, modifyUser=null, modifyTime=null, errorMsg=null)
OrgExcelCnDTO(excelNumberId=12, name=  002   12, parentExcelNumberId=6, excelType=null, type=null, excelCategory=null, category=null, note=null, id=null, code=null, parentId=null, createUser=null, createTime=null, modifyUser=null, modifyTime=null, errorMsg=null)
OrgExcelCnDTO(excelNumberId=13, name=  002   13, parentExcelNumberId=6, excelType=null, type=null, excelCategory=null, category=null, note=null, id=null, code=null, parentId=null, createUser=null, createTime=null, modifyUser=null, modifyTime=null, errorMsg=null)
OrgExcelCnDTO(excelNumberId=14, name=  002   14, parentExcelNumberId=6, excelType=null, type=null, excelCategory=null, category=null, note=null, id=null, code=null, parentId=null, createUser=null, createTime=null, modifyUser=null, modifyTime=null, errorMsg=null)
OrgExcelCnDTO(excelNumberId=15, name=  002   15, parentExcelNumberId=6, excelType=null, type=null, excelCategory=null, category=null, note=null, id=null, code=null, parentId=null, createUser=null, createTime=null, modifyUser=null, modifyTime=null, errorMsg=null)
--------------      -------------
OrgExcelCnDTO(excelNumberId=4, name=  001   4, parentExcelNumberId=1, excelType=null, type=null, excelCategory=null, category=null, note=null, id=null, code=null, parentId=null, createUser=null, createTime=null, modifyUser=null, modifyTime=null, errorMsg=null)
OrgExcelCnDTO(excelNumberId=9, name=  002   9, parentExcelNumberId=6, excelType=null, type=null, excelCategory=null, category=null, note=null, id=null, code=null, parentId=null, createUser=null, createTime=null, modifyUser=null, modifyTime=null, errorMsg=null)
OrgExcelCnDTO(excelNumberId=10, name=  002   10, parentExcelNumberId=6, excelType=null, type=null, excelCategory=null, category=null, note=null, id=null, code=null, parentId=null, createUser=null, createTime=null, modifyUser=null, modifyTime=null, errorMsg=null)
OrgExcelCnDTO(excelNumberId=11, name=  002   11, parentExcelNumberId=6, excelType=null, type=null, excelCategory=null, category=null, note=null, id=null, code=null, parentId=null, createUser=null, createTime=null, modifyUser=null, modifyTime=null, errorMsg=null)
OrgExcelCnDTO(excelNumberId=12, name=  002   12, parentExcelNumberId=6, excelType=null, type=null, excelCategory=null, category=null, note=null, id=null, code=null, parentId=null, createUser=null, createTime=null, modifyUser=null, modifyTime=null, errorMsg=null)
OrgExcelCnDTO(excelNumberId=13, name=  002   13, parentExcelNumberId=6, excelType=null, type=null, excelCategory=null, category=null, note=null, id=null, code=null, parentId=null, createUser=null, createTime=null, modifyUser=null, modifyTime=null, errorMsg=null)
OrgExcelCnDTO(excelNumberId=14, name=  002   14, parentExcelNumberId=6, excelType=null, type=null, excelCategory=null, category=null, note=null, id=null, code=null, parentId=null, createUser=null, createTime=null, modifyUser=null, modifyTime=null, errorMsg=null)
OrgExcelCnDTO(excelNumberId=15, name=  002   15, parentExcelNumberId=6, excelType=null, type=null, excelCategory=null, category=null, note=null, id=null, code=null, parentId=null, createUser=null, createTime=null, modifyUser=null, modifyTime=null, errorMsg=null)
OrgExcelCnDTO(excelNumberId=6, name=  001   6, parentExcelNumberId=1, excelType=null, type=null, excelCategory=null, category=null, note=null, id=null, code=null, parentId=null, createUser=null, createTime=null, modifyUser=null, modifyTime=null, errorMsg=null)
OrgExcelCnDTO(excelNumberId=8, name=  001   8, parentExcelNumberId=1, excelType=null, type=null, excelCategory=null, category=null, note=null, id=null, code=null, parentId=null, createUser=null, createTime=null, modifyUser=null, modifyTime=null, errorMsg=null)