//引入formSelects.css
<link rel="stylesheet" href="formSelects-v4.css" />
 
//模块化使用
<script src="layui.js" type="text/javascript" charset="utf-8"></script>
<script type="text/javascript">
    //全局定义一次, 加载formSelects
    layui.config({
        base: '../src/' //此处路径请自行处理, 可以使用绝对路径
    }).extend({
        formSelects: 'formSelects-v4'
    });
    //加载模块
    layui.use(['jquery', 'formSelects'], function(){
        var formSelects = layui.formSelects;
         
    });
</script>

<label class="layui-form-label">文章标签</label>
<div class="layui-input-inline" style="width: 56%;">
    <select name="tags" id="tags" lay-verify="required" xm-select="tags" xm-select-skin="normal">
               <option value="">请选择</option>
               <option value="1">随笔</option>
                <option value="2">测试</option>
                <option value="3">博客日志</option>
    </select>
</div>

/**
 * 1.配置远程搜索, 请求头, 请求参数, 请求类型等
 *
 * formSelects.config(ID, Options, isJson);
 *
 * @param ID        xm-select的值
 * @param Options   配置项
 * @param isJson    是否传输json数据, true将添加请求头 Content-Type: application/json; charset=UTF-8
 */
var formSelects = layui.formSelects;
formSelects.config('tags', {
    type: 'get',                //请求方式: post, get, put, delete...
    header: {},                 //自定义请求头
    data: {},                   //自定义除搜索内容外的其他数据
    searchUrl: '',              //搜索地址, 默认使用xm-select-search的值, 此参数优先级高
    searchName: 'keyword',      //自定义搜索内容的key值
    searchVal: '',              //自定义搜索内容, 搜素一次后失效, 优先级高于搜索框中的值
    keyName: 'name',            //自定义返回数据中name的key, 默认 name
    keyVal: 'value',            //自定义返回数据中value的key, 默认 value
    keySel: 'selected',         //自定义返回数据中selected的key, 默认 selected
    keyDis: 'disabled',         //自定义返回数据中disabled的key, 默认 disabled
    keyChildren: 'children',    //联动多选自定义children
    delay: 500,                 //搜索延迟时间, 默认停止输入500ms后开始搜索
    direction: 'auto',          //多选下拉方向, auto|up|down
    response: {
        statusCode: 0,          //成功状态码
        statusName: 'code',     //code key
        msgName: 'msg',         //msg key
        dataName: 'data'        //data key
    },
    success: function(id, url, searchVal, result){      //使用远程方式的success回调
        console.log(id);        //组件ID xm-select
        console.log(url);       //URL
        console.log(searchVal); //搜索的value
        console.log(result);    //返回的结果
    },
    error: function(id, url, searchVal, err){           //使用远程方式的error回调
        //同上
        console.log(err);   //err对象
    },
    beforeSuccess: function(id, url, searchVal, result){        //success之前的回调, 干嘛呢? 处理数据的, 如果后台不想修改数据, 你也不想修改源码, 那就用这种方式处理下数据结构吧
        console.log(id);        //组件ID xm-select
        console.log(url);       //URL
        console.log(searchVal); //搜索的value
        console.log(result);    //返回的结果
         
        return result;  //必须return一个结果, 这个结果要符合对应的数据结构
    },
    beforeSearch: function(id, url, searchVal){         //搜索前调用此方法, return true将触发搜索, 否则不触发
        if(!searchVal){//如果搜索内容为空,就不触发搜索
            return false;
        }
        return true;
    },
    clearInput: false,          //当有搜索内容时, 点击选项是否清空搜索内容, 默认不清空
}, true);

/**
 * 1.多选数据赋值
 *
 * formSelects.data(ID, type, config);
 *
 * @param ID            xm-select的值
 * @param type          'local' | 'server', 本地数据或者远程数据
 * @param config        配置项
 *          arr             本地数据数组
 *          url             远程数据链接
 *          keyword         远程数据搜索内容, 其他附加数据可以使用 formSelects.config设置
 *          linkage         是否为联动多选
 *          linkageWidth    联动多选没级宽度
 */
 
//以下代码可以在console中运行测试, 结果查看基础示例第一个
var formSelects = layui.formSelects;
 
//local模式
formSelects.data('select1', 'local', {
    arr: [
        {"name": "分组-1", "type": "optgroup"},
        {"name": "北京", "value": 1},
        {"name": "上海", "value": 2},
        {"name": "分组-2", "type": "optgroup"},
        {"name": "广州", "value": 3},
        {"name": "深圳", "value": 4},
        {"name": "天津", "value": 5}
    ]
});
 
//server模式
formSelects.data('select1', 'server', {
    url: 'https://www.fastmock.site/mock/29487363107ab7d242c46305cadf4c52/formSelects/layui/data',
    keyword: '水果'
});
//server返回数据与远程搜索数据结构一致
{
    "code":0,
    "msg":"success",
    "data":[
        {"name":"北京","value":1,"selected":"","disabled":""},
        {"name":"上海","value":2,"selected":"","disabled":""},
        {"name":"广州","value":3,"selected":"selected","disabled":""},
        {"name":"深圳","value":4,"selected":"","disabled":"disabled"},
        {"name":"天津","value":5,"selected":"","disabled":""}
    ]
}
//当然你也可以偷懒, 返回如下结构
[
    {"name":"北京","value":1,"selected":"","disabled":""},
    {"name":"上海","value":2,"selected":"","disabled":""},
    {"name":"广州","value":3,"selected":"selected","disabled":""},
    {"name":"深圳","value":4,"selected":"","disabled":"disabled"},
    {"name":"天津","value":5,"selected":"","disabled":""}
]

//加载模块
layui.use(['jquery', 'formSelects'], function(){
        var formSelects = layui.formSelects;
         
        //local模式
        formSelects.data('tags', 'local', {
            arr: [
            {"name": "随笔", "value": 1},
            {"name": "测试", "value": 2},
            {"name": "博客日志", "value": 3}
            ]
        });  
});   

//加载模块
layui.use(['jquery', 'formSelects'], function(){
        var formSelects = layui.formSelects;
         
        //server模式
        formSelects.config('tags', {
            keyName: 'name',
            keyVal: 'id'
        }).data('tags', 'server', {
            url: "/tag/findAll.do"
        });
});