layui 表單動态添加、删除input框

html部分

<div class="layui-form-item" >
    <label class="layui-form-label">路線</label>
    <div class="layui-input-block" id="last">
        <div class="layui-input-inline">
            {empty name="$ways"}
            <div class="layui-form-item">
                <div class="layui-input-inline">
                    <input type="text" name="ways[]" placeholder="請輸入"
                        autocomplete="off" class="form-control" style="width: 200%;">
                </div>
                <div class="layui-input-block" style="margin-left: 480px">
                    <button id="add" type="button" class="layui-btn layui-btn-warm layui-btn-sm">
                        <i class="layui-icon">&#xe654;</i>
                    </button>
                </div>
            </div>
            {else /}
            <!-- 循環列出資料 -->
            {volist name="ways" id="vo"}
            <div class="layui-form-item">
                <div class="layui-input-inline">
                    <input type="text" name="ways[]" lay-verify="required" value="{$vo.name}"
                        class="form-control" style="width: 200%;">
                </div>
                <div class="layui-input-block" style="margin-left: 480px">
                    <button type="button"
                        class="layui-btn layui-btn-danger layui-btn-sm removeclass"><i
                            class="layui-icon">&#xe67e;</i></button>
                </div>
            </div>
            {/volist}
            <div class="layui-form-item">
                <div class="layui-input-inline">
                    <input type="text" name="ways[]" placeholder="請輸入"
                        autocomplete="off" class="form-control" style="width: 200%;">
                </div>
                <div class="layui-input-block" style="margin-left: 480px">
                    <button id="add" type="button" class="layui-btn layui-btn-warm layui-btn-sm">
                        <i class="layui-icon">&#xe654;</i>
                    </button>
                </div>
            </div>
            {/empty}
        </div>

    </div>
</div>      

js部分

layui.use(['element', 'jquery', 'layer', 'form', 'laydate'], function () {
    var form = layui.form
        , element = layui.element
        , laydate = layui.laydate
        , $ = layui.$;

    //動态添加input輸入框
    $("#add").click(function () {
        var str = '<div class="layui-form-item">' +
            '<div class="layui-input-inline">' +
            '<input type="text" name="ways[]" lay-verify="required"' +
            'class="form-control" style="width: 200%;">' +
            '</div>' +
            '<div class="layui-input-block" style="margin-left: 480px">' +
            '<button type="button" class="layui-btn layui-btn-danger layui-btn-sm removeclass"><i class="layui-icon"></i></button>' +
            '</div>' +
            '</div>';

        $("#last").append(str);
        x++;
    });

    //删除動态添加的input輸入框
    $("body").on('click', ".removeclass", function () {
        //元素移除前校驗是否被引用
        var approvalName = $(this).parent().prev('div.layui-input-inline').children().val();
        var parentEle = $(this).parent().parent();
        parentEle.remove();
    });
})      

layui form表單 動态添加、删除input框，以及資料回顯

在form表單中，動态增加input框，最多添加5個，删除校驗

html代碼

<form class="layui-form" th:action="@{/basicInfo/update/project}" method="post">
        <div class="layui-form-item" id="last">
             <label class="layui-form-label">開發項目核準名</label>
             <div class="layui-input-inline">
                 <input type="text" id="projectApprovalName" name="projectApprovalName" lay-verify="required" placeholder="請輸入" autocomplete="off" class="layui-input input-double-width">
                 <input class="layui-input" type="hidden" id="id" name="id"  th:value="${estateInfo.id}">
             </div>
             <div class="layui-input-inline" style="margin-left: 180px">
                 <button id="add" type="button" class="layui-btn layui-btn-warm layui-btn-sm">
                     <i class="layui-icon">&#xe654;</i>
                 </button>
             </div>
             <span class="layui-word-aux">備注：最多添加5個項目核準名，每個長度為2-15個字元</span>
         </div>
</form>      

js代碼

<script type="text/javascript" th:inline="javascript">
    layui.use([ 'layer', 'upload'], function () {
        var $ = layui.jquery;
        var layer = layui.layer; //加載layer子產品
        var upload = layui.upload;  //加載upload子產品
        var id = $("#id").val();
        var basePath=[[${#httpServletRequest.getContextPath()}]];

    //動态添加input輸入框
    var max = 5;
    var x = 1;
    $("#add").click(function(){
        if(x<max){
            var str =  '<div class="layui-form-item">'+
                '<label class="layui-form-label"></label>'+
                '<div class="layui-input-inline">'+
                    '<input type="text" name="projectApprovalName" class="layui-input input-double-width">'+
                '</div>'+
                '<div class="layui-input-inline" style="margin-left: 180px">'+
                    '<button type="button" class="layui-btn layui-btn-danger layui-btn-sm removeclass"><i class="layui-icon"></i></button>'+
                '</div>'+
            '</div>';

            $("#last").append(str);
            x++;
        }else {
            layer.msg("最多添加5條資訊",{icon:2});
        }
    });

    //删除動态添加的input輸入框
    $("body").on('click',".removeclass",function(){
        if(x>1){
            //元素移除前校驗是否被引用
            var approvalName = $(this).parent().prev('div.layui-input-inline').children().val();
            var parentEle = $(this).parent().parent();
            $.ajax({
                url:basePath+'/basicInfo/findByApprovalNameAndEstateId',
                type:"get",
                data:{'id':id,'projectApprovalName':approvalName},
                dataType:"json",
                success:function(res){
                    if(res.code!==200){
                        layer.msg('項目核準名 '+approvalName+' 已被引用，禁止删除', {icon: 2, title:'提示'});
                    }else {
                        //移除父元素
                        parentEle.remove();
                        x--;
                    }
                }
            });
        }
    });
    //動态回顯input值
    var approvalNameStr = [[${estateInfo.projectApprovalName}]];
    var approvalNameArr = approvalNameStr.split(',');
    $.each(approvalNameArr,function (i,json) {

        if(i===0){
            $("#projectApprovalName").val(json);
        }

        if(i>0){
            var str =  '<div class="layui-form-item">'+
                '<label class="layui-form-label"></label>'+
                '<div class="layui-input-inline">'+
                '<input type="text" name="projectApprovalName" value="'+json+'" class="layui-input input-double-width">'+
                '</div>'+
                '<div class="layui-input-inline" style="margin-left: 180px">'+
                '<button type="button" class="layui-btn layui-btn-danger layui-btn-sm removeclass"><i class="layui-icon"></i></button>'+
                '</div>'+
                '</div>';
            $("#last").append(str);
        }

        x=i+1;
    });
  })
</script>      

<div class="layui-form-item" >
                 <label class="layui-form-label" style="width: 90px;">伺服器ip端口</label>
                    <div class="layui-input-block" id="last2">
                    <div class="layui-input-inline">
                        <div class="layui-form-item">
                            <div class="layui-input-inline" style="width: 151px;!important;" >
                                <input type="text" name="ways[]"
                                       class="layui-input"  required lay-verify="required"  autocomplete="off" class="form-control" style="width: 200%;">
                            </div>
                            <div class="layui-input-block" style="margin-left: 310px">
                                <button id="add2" type="button" class="layui-btn layui-btn-warm layui-btn-sm">
                                    <i class="layui-icon">&#xe654;</i>
                                </button>
                            </div>
                        </div>
                    </div>
                </div>
            </div>      

//layui 表單動态添加、删除input框  ---start
        //動态添加input輸入框
        var x = 1;
        $("#add2").click(function () {
            var str = '<div class="layui-form-item"  style="margin-left: 10px;"   > ' +
                '<div class="layui-input-inline" style="width: 151px;!important;">' +
                '<input type="text" name="ways[]" lay-verify="required"' +
                'class="form-control layui-input" style="width: 200%;"   >' +
                '</div>' +
                '<div class="layui-input-block" style="margin-left: 310px">' +
                '<button type="button" class="layui-btn layui-btn-danger layui-btn-sm removeclass"><i class="layui-icon"></i></button>' +
                '</div>' +
                '</div>';

            $("#last2").append(str);
            x++;
        });

        //删除動态添加的input輸入框
        $("body").on('click', ".removeclass", function () {
            //元素移除前校驗是否被引用
            var approvalName = $(this).parent().prev('div.layui-input-inline').children().val();
            var parentEle = $(this).parent().parent();
            parentEle.remove();
        });