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Tp5整合zTree实现树形菜单

张伟江2021-11-05 15:34【PHP】1356人已围观

1、树型结构的数据库表设计

CREATE TABLE `fa_ztree_category` (
  `id` tinyint(4) NOT NULL AUTO_INCREMENT COMMENT '主键ID',
  `name` varchar(60) DEFAULT NULL COMMENT '分类名称',
  `weigh` tinyint(4) DEFAULT NULL COMMENT '权重',
  `remark` varchar(200) DEFAULT NULL COMMENT '备注',
  `pid` int(11) DEFAULT NULL COMMENT '父ID',
  PRIMARY KEY (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=11 DEFAULT CHARSET=utf8mb4;

-- ----------------------------
-- Records of fa_ztree_category
-- ----------------------------
INSERT INTO `fa_ztree_category` VALUES ('1', '前端', '1', null, '0');
INSERT INTO `fa_ztree_category` VALUES ('2', 'vue', '2', null, '1');
INSERT INTO `fa_ztree_category` VALUES ('3', 'javascript', '3', null, '1');
INSERT INTO `fa_ztree_category` VALUES ('4', '后端', '4', null, '0');
INSERT INTO `fa_ztree_category` VALUES ('5', 'PHP', '5', null, '4');
INSERT INTO `fa_ztree_category` VALUES ('6', 'JAVA', '6', null, '4');
INSERT INTO `fa_ztree_category` VALUES ('7', 'react', '7', null, '1');

2、树型结构的控制器Ztree.php

<?php

namespace app\index\controller;


/**
 * Class Ztree
 * @title 树形菜单
 * @package app\index\controller
 */
class Ztree extends Controller
{

    protected $noNeedLogin = '*';
    protected $noNeedRight = '*';
    protected $layout = '';

    public function index()
    {
        if ($this->request->isAjax()) {
            $ztree_category = db('ztree_category')->select();
            $list = [];
            foreach($ztree_category as $val){
                $tree = [
                    'id'=>$val['id'],
                    'pId'=>$val['pid'],
                    'name'=>$val['name'],
                ];
                if($val['pid']==0){
                    $tree['open'] = true;
                }else{
                    $tree['file'] = 'core/simpleData';
                }
                $list[] = $tree;
            }
            $this->success('success','',$list);
        }
        return $this->fetch();
    }

}

3、树型结构的视图文件

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
<HTML>
<HEAD>
    <TITLE> ZTREE DEMO </TITLE>
    <meta http-equiv="content-type" content="text/html; charset=UTF-8">
    <link rel="stylesheet" href="/assets/libs/zTree/css/zTreeStyle/zTreeStyle.css" type="text/css">
    <style>
        body {
            background-color: white;
            margin: 0;
            padding: 0;
            text-align: center;
        }

        div, p, table, th, td {
            list-style: none;
            margin: 0;
            padding: 0;
            color: #333;
            font-size: 12px;
            font-family: dotum, Verdana, Arial, Helvetica, AppleGothic, sans-serif;
        }

        #testIframe {
            margin-left: 10px;
        }
    </style>
    <script src="https://code.jquery.com/jquery-3.1.1.min.js"></script>
    <script type="text/javascript" src="/assets/libs/zTree/js/jquery.ztree.core.js"></script>
    <SCRIPT type="text/javascript">
        <!--
        var zTree;
        var demoIframe;

        var setting = {
            view: {
                dblClickExpand: false,
                showLine: true,
                selectedMulti: false
            },
            data: {
                simpleData: {
                    enable: true,
                    idKey: "id",
                    pIdKey: "pId",
                    rootPId: ""
                }
            },
            callback: {
                beforeClick: function (treeId, treeNode) {
                    var zTree = $.fn.zTree.getZTreeObj("tree");
                    if (treeNode.isParent) {
                        zTree.expandNode(treeNode);
                        return false;
                    } else {
                        demoIframe.attr("src", treeNode.file + ".html");
                        return true;
                    }
                }
            }
        };

        var zNodes = [
            {id: 1, pId: 0, name: "[core] 基本功能 演示", open: true},
            {id: 101, pId: 1, name: "最简单的树 --  标准 JSON 数据", file: "core/standardData"},
            {id: 102, pId: 1, name: "最简单的树 --  简单 JSON 数据", file: "core/simpleData"},
        ];

        $(document).ready(function () {
            $.ajax({
                url: "index/ztree/index",
                data: {},
                type: "POST",
                dataType: "json",
                cache: false,
                success: function (res) {
                    var t = $("#tree");
                    //t = $.fn.zTree.init(t, setting,zNodes);
                    t = $.fn.zTree.init(t, setting, res.data);
                    demoIframe = $("#testIframe");
                    demoIframe.bind("load", loadReady);
                    var zTree = $.fn.zTree.getZTreeObj("tree");
                    zTree.selectNode(zTree.getNodeByParam("id", 101));
                }
            });

        });

        function loadReady() {
            var bodyH = demoIframe.contents().find("body").get(0).scrollHeight,
                htmlH = demoIframe.contents().find("html").get(0).scrollHeight,
                maxH = Math.max(bodyH, htmlH), minH = Math.min(bodyH, htmlH),
                h = demoIframe.height() >= maxH ? minH : maxH;
            if (h < 530) h = 530;
            demoIframe.height(h);
        }

        //-->
    </SCRIPT>
</HEAD>

<BODY>
<TABLE border=0 height=600px align=left>
    <TR>
        <TD width=260px align=left valign=top >
            <ul id="tree" class="ztree" style="width:260px; overflow:auto;"></ul>
        </TD>

    </TR>
</TABLE>

</BODY>
</HTML>

demo显示链接：https://www.zhangweijiang.com/index/ztree/index

demo代码下载链接：https://f.9635.com.cn/blog/uploads/20211105/a830e745e4c485191cb218fa772f52a1.zip