JAVA 遞歸獲取組織樹

1、

/*建立樹形結構*/
public List<Department> builTree(){
    List<Department> treeMenus =new ArrayList<Department>();
    for(Department menuNode : getRootNode()) {
        menuNode=buildChilTree(menuNode);
        treeMenus.add(menuNode);
    }
    return treeMenus;
}

/*遞歸，建立子樹形結構*/
private Department buildChilTree(Department pNode){
    List<Department> chilMenus =new  ArrayList<Department>();
    for(Department menuNode : menuList) {
        if(menuNode.getParentId().equals(pNode.getId())) {
            chilMenus.add(buildChilTree(menuNode));
        }
    }
    pNode.setChildren(chilMenus);
    return pNode;
}

/*獲取根節點*/
private List<Department> getRootNode() {
    List<Department> rootMenuLists =new  ArrayList<Department>();
    for(Department menuNode : menuList) {
        if(menuNode.getParentId().equals("1")) {
            rootMenuLists.add(menuNode);
        }
    }
    return rootMenuLists;
}
builTree()；

2、

/*建立全部樹形結構*/
List<FuncConfig> buildChilTree(String parentId){
    List<FuncConfig> list = funcConfigMapper.getFuncParentId(parentId);
    for(FuncConfig funcConfigVo : list) {
        String id = funcConfigVo.getId();
        List<FuncConfig> child = buildChilTree(id);
        if(!child.isEmpty()) {
            funcConfigVo.setChildren(child);
        }
    }
    return list;
}