实例详解ztree在vue项目中使用并且带有搜索功能

2019-11-19 13:10:11

字体：大中小

来源：转载

供稿：网友

zTree 是一个依靠 jQuery 实现的多功能 “树插件”。优异的性能、灵活的配置、多种功能的组合是 zTree 最大优点。

上篇文章给大家介绍了vue中如何使用ztree，大家可以点击查看。

之前博客介绍过怎么在vue里展示以及获取点击元素的内容，此文章之介绍搜索功能

html

<el-form-item label="机构" class="ztree-par"><i class="icon_org"></i><input type="text" placeholder="请输入机构" id="ser" v-model="ruleForm.mechanism" @keyup.enter="search_ztree('treeDemo', 'ser')" @click.stop = "control()" class="login-input"><el-button icon="el-icon-arrow-down" @click.stop="control()"></el-button><div class="ztree-z" v-show="ztreeCon"><ul id="treeDemo" class="ztree"></ul></div></el-form-item>

main.js需要单独引入

import "./../static/ztree/js/jquery.ztree.exhide-3.5.min.js";

如果不单独引入这个会获取不到很多元素，在input回车事件或者点击事件的时候直接执行此事件即可

代码部分

expand_ztree(treeId) {  var treeObj = $.fn.zTree.getZTreeObj(treeId);  treeObj.expandAll(true); },close_ztree(treeId) {  var treeObj = $.fn.zTree.getZTreeObj(treeId);  var nodes = treeObj.transformToArray(treeObj.getNodes());  var nodeLength = nodes.length;  for (var i = 0; i < nodeLength; i++) {  if (nodes[i].id == '0') {   //根节点：展开   treeObj.expandNode(nodes[i], true, true, false);  } else {   //非根节点：收起   treeObj.expandNode(nodes[i], false, true, false);  }  } },search_ztree(treeId, searchConditionId) {  this.searchByFlag_ztree(treeId, searchConditionId, ""); },searchByFlag_ztree(treeId, searchConditionId, flag) {  //<1>.搜索条件  var searchCondition = $('#' + searchConditionId).val();  //<2>.得到模糊匹配搜索条件的节点数组集合  var highlightNodes = new Array();  if (searchCondition != "") {  var treeObj = $.fn.zTree.getZTreeObj(treeId);  highlightNodes = treeObj.getNodesByParamFuzzy("name", searchCondition, null);  }  //<3>.高亮显示并展示【指定节点s】  this.highlightAndExpand_ztree(treeId, highlightNodes, searchCondition, flag); },highlightAndExpand_ztree(treeId, highlightNodes, tx, flag) {  var treeObj = $.fn.zTree.getZTreeObj(treeId);  //<1>. 先把全部节点更新为普通样式  var treeNodes = treeObj.transformToArray(treeObj.getNodes());  for (var i = 0; i < treeNodes.length; i++) {  treeNodes[i].highlight = false;  treeObj.updateNode(treeNodes[i]);  }  //<2>.收起树, 只展开根节点下的一级节点  this.close_ztree(treeId);  //<3>.把指定节点的样式更新为高亮显示，并展开  if (highlightNodes != null) {  for (var i = 0; i < highlightNodes.length; i++) {   if (flag != null && flag != "") {   if (highlightNodes[i].flag == flag) {    //高亮显示节点，并展开    highlightNodes[i].highlight = true;    treeObj.updateNode(highlightNodes[i]);    //高亮显示节点的父节点的父节点....直到根节点，并展示    var parentNode = highlightNodes[i].getParentNode();    var parentNodes = this.getParentNodes_ztree(treeId, parentNode);    treeObj.expandNode(parentNodes, true, false, true);    treeObj.expandNode(parentNode, true, false, true);   }   } else {    treeObj.updateNode(highlightNodes[i]);   var parentNode = highlightNodes[i].getParentNode();   var parentNodes = this.getParentNodes_ztree(treeId, parentNode);   treeObj.expandNode(parentNodes, true, false, true);   treeObj.expandNode(parentNode, true, false, true);   }  }  } },getParentNodes_ztree(treeId, node) {  if (node != null) {  var treeObj = $.fn.zTree.getZTreeObj(treeId);  var parentNode = node.getParentNode();  return this.getParentNodes_ztree(treeId, parentNode);  } else {  return node;  } }

展示