实体类tree（有结构）

@ApiOperation(value = "库存列表2")
   @ApiImplicitParams({
       @ApiImplicitParam(name = "goodsname", value = "字典数据类型编号", required = false, dataType = "String", paramType = "query"),
   })
   @RequestMapping(value="/goodslist2",method=RequestMethod.GET)
   public Object GoodsList2(PgQuery pgq,String goodsname){

       String condition="";
       if ( StrUtils.hasText(goodsname)) {
           condition += " and goodsname = '" + goodsname + "'";
       }

       String dwcode = getzhutiuser().getDwcode();
       String sql = "select * from t_goods"
               + " where nvl(scbj,'0')='0'"
               + " and dwcode='"+dwcode+"' "
               + " and parentcode='0'"
               +condition
               +" order by goodscode asc";
       PagedList<ext_goods> pagedListData = jdbcDao.getPagedListData(ext_goods.class, sql, pgq);
       //最高节点的集合
       List<ext_goods> rows = pagedListData.getRows();
       //最高节点的集合（组装后）
       List<ext_goods> rows1 = new ArrayList<ext_goods>();
       if(!CollectionUtils.isEmpty(rows)){
           for(ext_goods ext_goods:rows){
               //给当前最高节点的现为null的children属性赋值一个空的list
               ext_goods.setChildren(new ArrayList<ext_goods>());
               //给当前最高节点组装所有子节点
               ext_goods ext_goods1 = t_goodsDal.selectTree(ext_goods,dwcode);
               //节点放入空集合
               rows1.add(ext_goods1);
           }
       }
       pagedListData.setRows(rows1);

       return pagedListData;

}

//查询当前节点所有子节点+调用拼装

public ext_goods selectTree(ext_goods ext_goodsparent,String dwcode) {

           //当前节点所有子节点
           List<ext_goods> li = this.selectChildren(ext_goodsparent.getGoodscode(),dwcode);
           //节点组装
           this.tree(ext_goodsparent, li,dwcode);

           return ext_goodsparent;
       }

//查询当前节点所有子节点
       private List<ext_goods> selectChildren(String code,String dwcode) {
           String sql="select * from t_goods where parentcode='"+code+"' and dwcode='"+dwcode+"' and nvl(scbj,'0')='0'";
           List<ext_goods> list = jdbcDao.queryListForSql(sql, ext_goods.class);
           return list;
       }

// 节点组装
       private void tree(ext_goods ext_goodsparent, List<ext_goods> li,String dwcode) {

           if (!CollectionUtils.isEmpty(li)) {

               for (int i = 0, l = li.size(); i < l; i++) {
                   li.get(i).setChildren(new ArrayList<ext_goods>());
                   ext_goods ext_goods = li.get(i);
                   List<ext_goods> children = ext_goodsparent.getChildren();
                   children.add(ext_goods);// 添加到孩子节点列表
                   //当前子节点的子节点
                   List<ext_goods> list = this.selectChildren(ext_goods.getGoodscode(),dwcode);
                   tree(ext_goods, list,dwcode);// 递归，实现无限层级
               }
           }
       }

实体类tree（有结构）

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