layui表单提交无法将数据传入后端

表单提交只能关闭当前页面,不能提交数据到后端


<!DOCTYPE html>
<html>
<head>
    <meta charset="utf-8">
    <title>基本资料</title>
    <meta name="renderer" content="webkit">
    <meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">
    <meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1">
    <link rel="stylesheet" href="../lib/layui-v2.6.3/css/layui.css" media="all">
    <link rel="stylesheet" href="../css/public.css" media="all">
    <style>
        .layui-form-item .layui-input-company {
            width: auto;
            padding-right: 10px;
            line-height: 38px;
        }
    </style>
</head>
<body>
<div class="layuimini-container">
    <div class="layuimini-main">
        <form class="layui-form" action="http://localhost:8080/Student_Manage_System_war_exploded/UserServlet?action=updateUser" method="post">
        <div class="layui-form layuimini-form">
                <div class="layui-form-item">
                    <label class="layui-form-label required">管理账号</label>
                    <div class="layui-input-block">
                        <input type="text" name="userName" lay-verify="required" lay-reqtext="管理账号不能为空"
                               placeholder="请输入管理账号" value="admin" class="layui-input">
                        <tip>填写自己管理账号的名称。</tip>
                    </div>
                </div>
                <div class="layui-form-item">
                    <label class="layui-form-label required">手机</label>
                    <div class="layui-input-block">
                        <input type="number" name="phone" lay-verify="required" lay-reqtext="手机不能为空" placeholder="请输入手机"
                               value="" class="layui-input">
                    </div>
                </div>
                <div class="layui-form-item">
                    <label class="layui-form-label">邮箱</label>
                    <div class="layui-input-block">
                        <input type="email" name="email" placeholder="请输入邮箱" value="" class="layui-input">
                    </div>
                </div>
                <div class="layui-form-item">
                    <label class="layui-form-label">角色</label>
                    <div class="layui-input-block">
                        <input type="text" name="userRole" placeholder="请输入身份" value="" class="layui-input">
                    </div>
                </div>
                <div class="layui-form-item layui-form-text">
                    <label class="layui-form-label">备注信息</label>
                    <div class="layui-input-block">
                        <textarea name="remarks" class="layui-textarea" placeholder="请输入备注信息"></textarea>
                    </div>
                </div>

                <div class="layui-form-item">
                    <div class="layui-input-block">
                        <button class="layui-btn layui-btn-normal" lay-submit="" lay-filter="saveBtn">确认保存</button>
                    </div>
                </div>
            </div>
        </form>
    </div>
</div>
<script src="../lib/layui-v2.6.3/layui.js" charset="utf-8"></script>
<script src="../js/lay-config.js?v=1.0.4" charset="utf-8"></script>
<script>
    layui.use(['form', 'miniTab'], function () {
        var form = layui.form,
            layer = layui.layer,
            miniTab = layui.miniTab;

        //监听提交
        form.on('submit(saveBtn)', function (data) {
            var index = layer.alert(JSON.stringify(data.field), {
                title: '最终的提交信息'
            }, function () {
                layer.close(index);
                miniTab.deleteCurrentByIframe();
            });
            return false;
        });

    });
</script>
</body>
</html>
运行结果及报错内容

不能提交数据到后端

你这个代码也没向后端提交数据啊

$.ajax({
    type:'post',
    url:'main/addSubject',
    data:{"subjectMap":JSON.stringify(data.field)},
    success:function(){
        layer.open({
            title:'信息提示',
            content:'创建主题成功!',
            end:function(){
                //关闭弹窗刷新
                document.location.reload();
            }
        });
    },
    error:function(){
        layer.open({
            title:'信息提示',
            content:'创建主题失败!',
        });
    }
});

监听提交里面把这段加上


<!DOCTYPE html>
<html lang="">
<head>
    <meta charset="utf-8">
    <title>layui</title>
    <meta name="renderer" content="webkit">
    <meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">
    <meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1">
    <link rel="stylesheet" href="../../lib/layui-v2.6.3/css/layui.css" media="all">
    <link rel="stylesheet" href="../../css/public.css" media="all">
    <script src="https://unpkg.com/axios/dist/axios.min.js"></script>

    <style>
        body {
            background-color: #ffffff;
        }
    </style>
</head>
<body>
<form class="layui-form" action="http://localhost:8080/Student_Manage_System_war_exploded/BookServlet?action=addBook" method="post">
    <div class="layui-form layuimini-form">
        <div class="layui-form-item">
            <label class="layui-form-label required">书名</label>
            <div class="layui-input-block">
                <input type="text" name="bookName" lay-verify="required" lay-reqtext="书名不能为空" placeholder="请输入书名" value="" class="layui-input">
                <!--            <tip>填写自己管理账号的名称。</tip>-->
            </div>
        </div>
        <div class="layui-form-item">
            <label class="layui-form-label required">编号</label>
            <div class="layui-input-block">
                <input type="number" name="bookNo" lay-verify="required" lay-reqtext="编号不能为空" placeholder="请输入编号"
                       value="" class="layui-input">
                <tip>编号只能由数字组成!</tip>
            </div>
        </div>
        <div class="layui-form-item">
            <label class="layui-form-label">数量</label>
            <div class="layui-input-inline" >
                <input type="number" name="counts" placeholder="请输入数量" value="" class="layui-input">
            </div>
        </div>
        <div class="layui-form-item">
            <label class="layui-form-label">作者</label>
            <div class="layui-input-inline">
                <input type="text" name="author" placeholder="请输入作者" value="" class="layui-input">
            </div>
        </div>
        <div class="layui-form-item">
            <label class="layui-form-label">价格</label>
            <div class="layui-input-inline">
                <input type="text" name="price" placeholder="请输入每本书价格" value="" class="layui-input">
            </div>
        </div>
        <div class="layui-form-item">
            <label class="layui-form-label">分类</label>
            <div class="layui-input-inline">
                <select name="classification" lay-verify="classification" lay-search="">
                    <option value="未选择">直接选择或搜索选择</option>
                    <option value="编程">编程</option>
                    <option value="2">form</option>
                    <option value="3">layim</option>
                    <option value="4">element</option>

                </select>
            </div>
        </div>
        <div class="layui-form-item">
            <label class="layui-form-label">出版社</label>
            <div class="layui-input-block">
                <input type="text" name="press" placeholder="请输入出版社名称" value="" class="layui-input">
            </div>
        </div>
        <div class="layui-form-item layui-form-text">
            <label class="layui-form-label">备注信息</label>
            <div class="layui-input-block">
                <textarea name="remarks" class="layui-textarea" placeholder="请输入备注信息"></textarea>
            </div>
        </div>

        <div class="layui-form-item">
            <div class="layui-input-block">
                <button type="submit" class="layui-btn layui-btn-normal" lay-submit="" lay-filter="formDemo" onclick="saveBtn()">确认保存</button>
                <button type="reset" class="layui-btn layui-btn-primary">重置</button>
            </div>
        </div>
    </div>
</form>


<script src="../../lib/layui-v2.6.3/layui.js" charset="utf-8"></script>
<script>
    // layui.use(['form'], function () {
    // var form = layui.form,
    //     layer = layui.layer,
    //     $ = layui.$;
    //
    //
    //     //监听提交
    //     form.on('submit(formDemo)', function (data) {
    //         data = data.field;
    //         if (data.bookName == '') {
    //             layer.msg('书名不能为空');
    //             return false;
    //         }
    //         if (data.bookNo == '') {
    //             layer.msg('编号不能为空');
    //             return false;
    //         }
    //         // $.ajax({
    //         //     url:"http://localhost:8080/Student_Manage_System_war_exploded/BookServlet?action=addBook",
    //         //     type:"post",
    //         //     dataType:"json",
    //         //     data:{bookName:data.bookName,bookNo:data.bookNo,counts:data.counts,author:data.author,
    //         //             price:data.price,press:data.press,remarks:data.remarks
    //         //     },
    //         // });
    //         var index = layer.alert(JSON.stringify(data), {
    //             title: '最终的提交信息'
    //
    //         }, function () {
    //             // saveBtn();
    //             // 关闭弹出层
    //             layer.close(index);
    //             var iframeIndex = parent.layer.getFrameIndex(window.name);
    //             parent.layer.close(iframeIndex);
    //                 // table.reload("currentTableId");
    //
    //         });
    //
    //         return false;
    //     });
    //
    // });
    function saveBtn() {
        var index = parent.layer.getFrameIndex(window.name);
        parent.layer.close(index); //关闭当前选项卡
        table.reload("currentTableId");

    }
</script>
</body>
</html>