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                ## 1.form表單 ``` <div class="layui-form-item"> <label class="layui-form-label"><i class="must">*</i>寶貝標題</label> <div class="layui-input-block"> <input type=" text " name="goods_name" onblur="ajaxName()" id="username" placeholder="請輸入寶貝標題" autocomplete="off " class="layui-input" datatype="*" nullmsg="寶貝標題不能為空!"> </div> </div> ``` ## 2.ajax代碼 ``` <script> //ajax查詢是否重名 function ajaxName() { var username = $('#username').val(); $.ajax({ type:"post", dataType:"json", data:{username:username}, url:"{:url('/seller_Goods/ajaxName')}", success:function(data){ if (data.status == 1) { layer.alert(data.info, { title: '提示框', icon: 0, }); layer.close(index); return false; } } },'json'); } </script> ``` ## 3.控制器 ``` /** * ajax驗證商品名 * $username是ajax發送過來的商品名 */ public function ajaxName ($username) { $res = db('goods')->where('goods_name',$username)->field('goods_name')->find(); if (!empty($res)) { $data = array( 'status' => '1', 'info' => '商品名稱已經重復,請換一個試試' ); } else { $data = array( 'status' => '0', 'info' => '驗證通過' ); } return json($data); } ```
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