自定義類 無極限樹形結構選單(繁雜版)
阿新 • • 發佈：2019-02-11
注意: 主要是理解形成樹形選單的思路，並不是貼上就可以用的。
返回資料(如:效果圖)到頁面後,通過js做遞迴呼叫處理就好了。
樹形選單基礎類:TreeGridCategory.java
public class TreeGridCategory implements Comparable{ private String id; /* ID */ private String name; /* 名稱 */ private String path; /* 圖示 */ private String pid; /* 父級ID */ private String level; private String state="close"; /* 摺疊狀態 */ private String lang; private String sort; private String status; private String leaf; /* 葉子節點標識：1：子節點 2：葉子節點 */ Map<String,Object> params = new HashMap<String,Object>(); List<TreeGridCategory> children = new ArrayList<TreeGridCategory>(); /* 子集節點 */
mybatis 查詢:
<!-- 獲取視訊分類列表 --> <select id="getVodCategory" parameterType="map" resultType="map"> SELECT vc.id AS id, vc.leaf AS leaf, vc.parent_id AS pid, vc.level AS level, vc.name AS name, vc.path AS path, vc.lang AS lang, vc.sort AS sort, vc.status AS status FROM ott_vod_category vc </select>
業務層處理:
@Override public List<TreeGridCategory> getTreeGridCategory(VodCategory vodCategory) { List<TreeGridCategory> easyuiTreetemp = new ArrayList<TreeGridCategory>(); Map<String,Object> map=new HashMap<String,Object>(); map.put("lang","zh-cn"); List<Map<String,Object>> dataList = tVodCategoryDao.getVodCategory(map); Map<String,TreeGridCategory> treeMap = new HashMap<>(); for (Map<String,Object> easyuiTreeMap : dataList) { TreeGridCategory treeGridCategory = fomateTreeGridCategory(easyuiTreeMap); treeMap.put(treeGridCategory.getId(), treeGridCategory); easyuiTreetemp.add(treeGridCategory); } List<TreeGridCategory> treeGridList = new ArrayList<TreeGridCategory>(); for (int i = 0; i < easyuiTreetemp.size(); i++) { TreeGridCategory tempTree = easyuiTreetemp.get(i); TreeGridCategory mapTree = treeMap.get(tempTree.getPid()); if(null != mapTree && !tempTree.getId().equals(tempTree.getPid())){ mapTree.getChildren().add(tempTree); }else{ treeGridList.add(tempTree); } } return treeGridList; } private TreeGridCategory fomateTreeGridCategory(Map<String,Object> map){ TreeGridCategory treeGridCategory = new TreeGridCategory(); Map<String,Object> params = new HashMap<String,Object>(); for (String key : map.keySet()) { switch (key) { case "id": treeGridCategory.setId(map.get(key)+""); break; case "name": treeGridCategory.setName(map.get(key)+""); break; case "path": treeGridCategory.setPath(map.get(key)+""); break; case "pid": treeGridCategory.setPid(map.get(key)+""); break; case "leaf": treeGridCategory.setLeaf(map.get(key)+""); break; case "sort": treeGridCategory.setSort(map.get(key) + ""); break; case "level": treeGridCategory.setLevel(map.get(key) + ""); break; case "lang": treeGridCategory.setLang(map.get(key)+""); break; case "status": treeGridCategory.setStatus(map.get(key)+""); break; default: params.put(key, map.get(key)); break; } } treeGridCategory.setParams(params); return treeGridCategory; }
控制層:
List<TreeGridCategory> list = new ArrayList<TreeGridCategory>();
list = treeGridService.getTreeGridCategory(vodCategory);
return list;Js 上遞迴處理:
function getHtml(jsonArr){
for(var i=0;i<jsonArr.length;i++){
if(jsonArr[i].id != 1)
html += '<tr data-tt-id="'+jsonArr[i].id+'" data-tt-parent-id="'+jsonArr[i].pid+'">';
else
html += '<tr data-tt-id="'+jsonArr[i].id+'">';
html += '<td style="width:120px;">'+jsonArr[i].id+'</td>';
html += '<td>'+jsonArr[i].name+'</td>';
if(jsonArr[i].path!=null){
html += '<td><img src='+jsonArr[i].path+' style="width:40px;height:32px;" /></td>';
}else{
html += '<td><img src="" style="width:40px;height:32px;" /></td>';
}
html += '<td>'+jsonArr[i].lang+'</td>';
html += '<td>'+jsonArr[i].sort+'</td>';
if(jsonArr[i].status=="0" ){
html += '<td ><i class="fa fa-unlock"></i></td>';
}else{
html += '<td ><i class="fa fa-lock"></i></td>';
}
html += '<td><button class="btn btn-success btn-sm" onclick="editVodCategory('+jsonArr[i].id+')">編輯</button>';
if(jsonArr[i].status=="0" ){
html += ' <button class="btn btn-danger btn-sm" onclick="opVodCategoryStatus('+jsonArr[i].id+',1)">鎖定</button></td>';
}else{
html += ' <button class="btn btn-primary btn-sm" onclick="opVodCategoryStatus('+jsonArr[i].id+',0)">解鎖</button></td>';
}
html +='</tr>';
if(jsonArr[i]['children'] != null || jsonArr[i]['children'] != '' ){
getHtml(jsonArr[i]['children']);
}
}
}