<form class="layui-form">
  <div class="layui-form-item">
    <label class="layui-form-label">尾灯名称</label>
    <div class="layui-input-block">
      <input type="text" name="name" required lay-verify="required" placeholder="请输入尾灯名称" class="layui-input">
    </div>
  </div>
  <div class="layui-form-item">
    <div class="layui-input-block">
      <button type="button" class="layui-btn" id="upload">
        <i class="layui-icon">&#xe67c;</i>上传图标
      </button>
      <br><br>
      <div style="width:200px;height:200px;border:3px solid #0099CC;border-radius: 5px;padding: 3px;">
        <img style="max-width: 200px;max-height:200px;" id="preview">
      </div>
    </div>
  </div>
  <div class="layui-form-item">
    <div class="layui-input-block">
      <button class="layui-btn" id="commit" onclick="return false">立即提交</button>
    </div>
  </div>
</form>

<script>
  layui.use(['form', 'layer', 'upload'], function () {
    var layer = layui.layer;
    var upload = layui.upload;
    var $ = layui.jquery;

    upload.render({
      elem: '#upload',
      url: '{:U("addTL")}',
      auto: false,//选择文件后不自动上传
      bindAction: '#commit',
      //上传前的回调
      before: function () {
        this.data = {
          name: $('input[name="name"]').val()
        }
      },
      //选择文件后的回调
      choose: function (obj) {
        obj.preview(function (index, file, result) {
          $('#preview').attr('src', result);
        })
      },
      //操作成功的回调
      done: function (res, index, upload) {
        var code = res.code === 0 ? 1 : 2;
        layer.alert(res.msg, {icon: code}, function () {
          parent.window.location.reload();
        })
      },
      //上传错误回调
      error: function (index, upload) {
        layer.alert('上传失败！' + index);
      }
    });
  })
</script>