Bootstrap系列之treeview实现菜单树

SmileNicky

发布于 2022-05-07 16:39:46

1.7K0

发布于 2022-05-07 16:39:46

文章被收录于专栏：Nicky's blog

本博客，介绍通过Bootstrap的treeview插件实现菜单树的功能。

treeview链接：http://www.htmleaf.com/Demo/201502141380.html

ORM框架是Mybatis的，这里其实就是单表查询而已，获取要做菜单树的信息表，这张表必须要有一个parentSeq，然后通过关联实现。

<sql id="groupDefineColum">
			gr.seq,
			gr.group_name,
	        gr.group_desc,
	        gr.group_type,
	        gr.parent_seq,
	        case when (select count(1)
	                    from t_group_define
	                   where parent_seq = gr.seq)> 0 then 'true' else 'false'
	        end as subFlag
	</sql>
	
	<!-- 获取信息->
	<select id="listGroupDefineInfo" resultType="GroupDefineModel">
		select <include refid="groupDefineColum"></include>
		from t_group_define gr
	</select>

Model类：

package com.group.model;


/**
 * 
 * <pre>
 *  分组定义模型
 * </pre>
 *
 * @author nicky
 * <pre>
 * 修改记录
 *    修改后版本:     修改人：  修改日期: 2018年11月7日   修改内容:
 * </pre>
 */
public class GroupDefineModel implements Serializable{

	private static final long serialVersionUID = 1L;
	
	private String seq;//UUID主键
	
	private String uuid;//uuid
	
	private String groupName;//分组名称
	
	private String groupDesc;//分组描述
	
	private Long groupType;//分组的类型（暂时只对true_false表进行分组，1：truefalse表）
	
	private String parentSeq;//父分组主键
	
	private String href;//链接,格式为：#href
	
	private String subFlag;//判断一个树是否有子级节点
	
	private String state;//树表格是否展开属性
	
	private List<GroupDefineModel> subGroup;//子级分组列表

	public String getSeq() {
		return seq;
	}

	public void setSeq(String seq) {
		this.seq = seq;
	}

	public String getUuid() {
		return uuid;
	}

	public void setUuid(String uuid) {
		this.uuid = uuid;
	}
	
	public String getGroupName() {
		return groupName;
	}

	public void setGroupName(String groupName) {
		this.groupName = groupName;
	}

	public String getGroupDesc() {
		return groupDesc;
	}

	public void setGroupDesc(String groupDesc) {
		this.groupDesc = groupDesc;
	}

	public Long getGroupType() {
		return groupType;
	}

	public void setGroupType(Long groupType) {
		this.groupType = groupType;
	}

	public String getParentSeq() {
		return parentSeq;
	}

	public void setParentSeq(String parentSeq) {
		this.parentSeq = parentSeq;
	}

	public String getHref() {
		return href;
	}

	public void setHref(String href) {
		this.href = href;
	}

	public String getSubFlag() {
		return subFlag;
	}

	public void setSubFlag(String subFlag) {
		this.subFlag = subFlag;
	}

	public String getState() {
		return state;
	}

	public void setState(String state) {
		this.state = state;
	}

	public List<GroupDefineModel> getSubGroup() {
		return subGroup;
	}

	public void setSubGroup(List<GroupDefineModel> subGroup) {
		this.subGroup = subGroup;
	}

	
}

然后通过我封装的工具类构建数据

package com.group.util;

import java.util.ArrayList;
import java.util.List;

import org.apache.commons.lang3.StringUtils;

/**
 * 
 * <pre>
 *  构建一棵分组树
 * </pre>
 *
 * @author nicky
 * <pre>
 * 修改记录
 *    修改后版本:     修改人：  修改日期: 2018年11月7日   修改内容:
 * </pre>
 */
public class GroupTreeUtils {
	public List<GroupDefineModel> groups;

    public List<GroupDefineModel> list = new ArrayList<GroupDefineModel>();

    /**
     *  buildGroupTree：(构建分组树)
      * @author nicky
      * @date   2018年11月7日下午4:34:00
      * @return
     */
    public List<GroupDefineModel> buildGroupTree(List<GroupDefineModel> groups) {
        this.groups = groups;
        for (GroupDefineModel gr : groups){
        	if("0".equals(gr.getParentSeq())) {//根级目录
	        	GroupDefineModel group = new GroupDefineModel();
	        	group.setSeq(gr.getSeq());
	        	group.setParentSeq(gr.getParentSeq());
	        	group.setGroupName(gr.getGroupName());
	        	group.setGroupDesc(gr.getGroupDesc());
	        	group.setGroupType(gr.getGroupType());
	        	group.setHref("#"+gr.getSeq());
	            group.setSubGroup(treeChild(gr.getSeq()));
	            list.add(group);
        	}
        }
        return list;
    }
    
    /**
     *  treeChild:(递归遍历子级分组)
      * @author nicky
      * @date   2018年11月7日下午4:33:47
      * @return
     */
    public List<GroupDefineModel> treeChild(String seq){
        List<GroupDefineModel> list = new ArrayList<GroupDefineModel>();
        for(GroupDefineModel gr : groups){
        	GroupDefineModel group = new GroupDefineModel();
        	if(seq.equals(gr.getParentSeq())){
            	group.setSeq(gr.getSeq());
            	group.setParentSeq(gr.getParentSeq());
            	group.setGroupName(gr.getGroupName());
            	group.setGroupDesc(gr.getGroupDesc());
            	group.setGroupType(gr.getGroupType());
            	group.setHref("#"+gr.getSeq());
                group.setSubGroup(treeChild(gr.getSeq()));//递归循环
                list.add(group);
            }
        }
        return list;
    }

}

控制类调用：

@RequestMapping("/toGroupPage")
	public ModelAndView toGroupPage(HttpServletRequest request,TrueFalseModel t){
		 ModelAndView model = new ModelAndView();
		 try {
			 logger.info("跳转到页面");
			 // 分组树构建 
			 List<GroupDefineModel> groupDefineList = groupDefineService.listGroupDefineInfo();
	
			 GroupTreeUtils treeUtil = new GroupTreeUtils();
			 groupDefineList = treeUtil.buildGroupTree(groupDefineList);
			 String groupTreeJson = JSON.toJSONString(groupDefineList);
			 groupTreeJson = groupTreeJson.replace("groupName", "text");
			 groupTreeJson = groupTreeJson.replace("subGroup", "nodes");
			 logger.info("分组树信息："+groupTreeJson);
			 model.addObject("groupTreeJson", groupTreeJson);
			 model.setViewName("group/groupList");
		 } catch (Exception e) {
			 logger.error("t跳转到页面出错！", e);
		 }
	     return model;
	}

返回的json数据

[
    {
        "groupDesc":"移动门户描述",
        "text":"移动门户",
        "groupType":1,
        "href":"#7CF98E8FE9870991E0530100007F9288",
        "parentSeq":"0",
        "seq":"7CF98E8FE9870991E0530100007F9288",
        "nodes":[
            {
                "groupDesc":"文章收藏描述",
                "text":"文章收藏",
                "groupType":1,
                "href":"#7CF98E8FE9880991E0530100007F9288",
                "parentSeq":"7CF98E8FE9870991E0530100007F9288",
                "seq":"7CF98E8FE9880991E0530100007F9288",
                "nodes":[

                ]
            }
        ]
    },
    {
        "groupDesc":"测试",
        "text":"网上申办",
        "groupType":1,
        "href":"#7CF946FFABE8083FE0530100007FF726",
        "parentSeq":"0",
        "seq":"7CF946FFABE8083FE0530100007FF726",
        "nodes":[

        ]
    }
]

前端调用：

<link rel="stylesheet" href="${resource}/bootstrap/bootstrap.min.css" />
<script type="text/javascript" src="${resource}/treeview/bootstrap-treeview.js"></script>

<div id="groupTree" class="group_tree" >
			<div class="div_group" id="div_group"></div>
		</div>

js：

/* 分组树事件绑定  */
			var groupTreeData = '${groupTreeJson}';
			$('#div_group').treeview({
				color : "#428bca",
				enableLinks: true,
				data : groupTreeData,
				onNodeSelected : function(event, node) {
                    document.getElementById(node.seq).scrollIntoView();
		        },
                onNodeUnselected:function (event, node) {
                    // var anh = $('#top').offset().top;
                    // debugger
                    // $("#content").stop().animate({scrollTop:anh},400);
                }
			});

实现树形菜单：