1 <tr>
 2     <th class="font-size-sm" style="width:15%;height:100px;">商品图片</th>
 3     <td>
 4         <div class="custom-file">
 5             <div id="uploadImage" style="width:100px;height:100px;display: inline;"></div>
 6             <button id="uploadBtn" class="btn btn-outline-info font-size-sm">选择图片</button>
 7             <input type="file" name="imgFile" id="imgFile" style="display: none;">
 8         </div>
 9     </td>
10 </tr>

 1 $(document).ready(function(){
 2     var input = $("#imgFile");
 3     // 将上传按钮绑定到input[‘file‘]上
 4     $("#uploadBtn").click(function(){
 5         input.trigger("click");
 6     });
 7     input.change(function () {
 8         // 如果value不为空，调用文件加载方法
 9         if ($(this).val() !== "") {
10             doUpload(this);
11         }
12     });
13 });
14  
15 // 上传图片
16 var SCOPE = {
17     ‘uploadUrl‘: ‘{:url("‘ + urlPath +‘/upload")}‘,
18 };
19 function doUpload() {
20     var formData = new FormData($( "#myform" )[0]),
21         appendDiv = $("#uploadImage"),
22         imageUrl = ‘‘,
23         imageDiv = ‘‘;
24     $.ajax({
25         url: SCOPE.uploadUrl ,
26         type: ‘POST‘,
27         data: formData,
28         async: false,
29         cache: false,
30         contentType: false,
31         processData: false,
32         success: function (result) {
33             if(result.status === 1){
34                 appendDiv.empty();
35                 imageUrl = ‘/storage/‘ + result.data;
36                 imageDiv = ‘‘;
37                 appendDiv.append(imageDiv);
38             }
39         },
40     });
41 }

 1 /**
 2  * 图片上传(ajax)
 3  * @return \think\Response|void
 4  * @throws \Exception
 5  */
 6 public function upload()
 7 {
 8     // 获取表单上传文件 例如上传了001.jpg
 9     $file = request()->file(‘imgFile‘);
10     try{
11         // 验证
12         validate([‘imgFile‘=>[
13             ‘fileSize‘ => 410241024,
14             ‘fileExt‘ => ‘jpg,jpeg,png,bmp,gif‘,
15             ‘fileMime‘ => ‘image/jpeg,image/png,image/gif‘, //这个一定要加上，很重要我认为！
16         ]])->check([‘imgFile‘ => $file]);
17  
18         // 上传图片到本地服务器
19         $saveName = \think\facade\Filesystem::disk(‘public‘)->putFile( ‘merchant‘, $file, ‘data‘);
20         $this->result(1, ‘图片上传成功!‘, $saveName, ‘json‘);
21     } catch (\Exception $e) {
22         // 验证失败 输出错误信息
23         return $this->exceptionHandle($e,
24             ‘图片上传失败!‘ . $e->getMessage(),
25             ‘json‘,
26             ‘‘);
27     }
28 }