作者：npa3689305 | 来源：互联网 | 2024-10-22 22:00
实体类：publicclassMenu{菜单idprivateStringid;菜单名称privateStringname;父菜单idprivateStringpa
实体类&＃xff1a;
public class Menu {// 菜单idprivate String id;// 菜单名称private String name;// 父菜单idprivate String parentId;// 菜单urlprivate String url;// 菜单图标private String icon;// 菜单顺序private int order;// 子菜单private List
菜单一般需要排序&＃xff0c;我们根据Menu的order字段进行排序&＃xff1a;
/** 排序,根据order排序*/public Comparator
生成树的方法&＃xff1a;
public Map findTree(){Map data &＃61; new HashMap();try {//查询所有菜单List
获取子菜单&＃xff1a;
/*** 获取子节点* &＃64;param id 父节点id* &＃64;param allMenu 所有菜单列表* &＃64;return 每个根节点下&＃xff0c;所有子菜单列表*/public List
返回的JSON串如下&＃xff1a;
{"success": "true","list": [{"id": "1","name": "Java","parentid": "0","url": "http://www.aliouchen.com","order": 1,"children": [{"id": "2","name": "并发编程","parentid": "1","url": "http://www.aliouchen.com","order": 1,"children": []},{"id": "3","name": "多线程","parentid": "1","url": "http://www.aliouchen.com","order": 2,"children": ["id": "4","name": "Thread","parentid": "3","url": "http://www.aliouchen.com","order": 1,"children":[]]}]},{"id": "5","name": "Python","parentid": "0","url": "http://www.aliouchen.com","order": 2,"children": []}]
}
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