我要评论这里使用layui渲染的导航
实体类
dept.java
private int id; //id private string dept_name; //部门名称 private int pid; //上级部门id private int sort_num; //排序值 private int create_id; //创建人 private string create_time; //创建时间 private int modify_id; //修改人 private string modify_time; //最后修改时间 private int is_del; // 是否删除 0 未删除 1 已删除 private int status; //status private string remark; //remark private list<dept> deptchild = new arraylist<>(); //部门迭代
deptmapper.java
list<dept> selectdeptforjsonmenu();
deptmapper.xml
<resultmap type="com.ys.entity.dept" id="deptfirst">
<result column="id" property="id" javatype="java.lang.integer" />
<result column="dept_name" property="dept_name" javatype="java.lang.string" />
<result column="sort_num" property="sort_num" javatype="java.lang.integer" />
<result column="create_time" property="create_time" javatype="java.lang.string" />
<result column="modify_id" property="modify_id" javatype="java.lang.integer" />
<result column="modify_time" property="modify_time" javatype="java.lang.string" />
<result column="is_del" property="is_del" javatype="java.lang.integer" />
<result column="status" property="status" javatype="java.lang.integer" />
<result column="remark" property="remark" javatype="java.lang.string" />
<collection column="id" property="deptchild" javatype="java.util.arraylist" select="selectdeptforjsonmenuchild"/>
</resultmap>
<!-- 查询部门菜单树 -->
<select id="selectdeptforjsonmenu" resultmap="deptfirst">
select * from sys_dept where pid = 0 and is_del = 0 order by sort_num
</select>
<select id="selectdeptforjsonmenuchild" resultmap="deptfirst" parametertype="java.lang.integer">
select * from sys_dept where pid = #{id} and is_del = 0 order by sort_num
</select>
deptservice.java
public list<dept> selectdeptforjsonmenu(){
return mapper.selectdeptforjsonmenu();
}
deptcontroller.java
@requestmapping(value = "selectdeptforjsonmenu",method={requestmethod.get,requestmethod.post})
@responsebody
public list<dept> selectdeptforjsonmenu(){
return service.selectdeptforjsonmenu();
}
html 引入layui.js,layui.css 并加载element模块.
<div id="leftmenu"> </div>
$(function(){
$.ajax({
method:'post',
url:getpath+"dept/selectdeptforjsonmenu",
datatype:'json',
success:function(data){
if(data.length > 0){
var showlist = $('<ul class="layui-nav layui-nav-tree"></ul>');
showall(data, showlist);
$("#leftmenu").html(showlist);
}else{
$('#leftmenu').html('<span class="layui-btn layui-btn-primary" id="add">添加</span>') ;
}
}
});
//json为json数据
//parent为最终html拼接内容
function showall(json, parent) {
for (var i in json) {
//有子节点 遍历
if (json[i].deptchild.length > 0) {
//创建li
var li = $('<li class="layui-nav-item layui-nav-itemed"></li>');
$(li).append('<a href="javascript:;" rel="external nofollow" rel="external nofollow" >'+json[i].dept_name+'</a>');
$(li).append('<ul class="layui-nav-child"></ul>').appendto(parent);
//将ul选中 回调
showall(json[i].deptchild, $(li).children().eq(1));
}
//无子级
else {
$('<li></li>').append('<a href="javascript:;" rel="external nofollow" rel="external nofollow" >'+json[i].dept_name+'</a>').appendto(parent);
}
}
}
});
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