ztree在vue项目中使用并且带有搜索功能
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
这没有高亮显示的功能，如果需要高亮显示可以查看原文
原文链接：https://www.jianshu.com/p/edcffa22d2cd
这个有个小小的bug，就是做键盘按下或者抬起的时候会有问题，https://yq.aliyun.com/articles/308489，这个文章就解决了这个问题