vue中el-tree增加节点后如何重新刷新_vue.js_

 //点击事件 

data() { return { openPanel:true, data: [{ id: -1, label: '仪表板', children: [ ] }], defaultProps: { children: 'children', label: 'label' } } } 

//先增加 this.doAdd(val); //然后清空树的数据 this.sup_this.data = [{ id: -1, label: '仪表板', children: [ ] }]; //在0.1s后重新查询并加载树 setTimeout(() => { //查询树的数据 this.queryPanel(); //组件使用v-if重新加载 this.openPanel = false; this.sup_this.$nextTick(() => { this.openPanel = true; }) }, 100); 

      let {         updateKeyChildren,       } = this.$refs.entityTreeRef;              let res = await this.listChildrenNode(this.confTarget);       updateKeyChildren(id, res);

let { nodesMap } = this.$refs.entityTreeRef.root.store; let lastExpandIds = []; let localMap = Object.values(nodesMap); localMap.forEach(item => {   if (item.expanded) {     lastExpandIds.push(item.data.id);   } }); nodesMap = {};

nodesMap = {};

let { nodesMap } = this.$refs.entityTreeRef.root.store; this.defaultExpandedKeys = ids; this.$refs.entityTreeRef.root.setData(result);