无法通过表单上传图片？

Question

这是我的 HTML：

                            <label for="attachement1">Attach a file: <small style="color:#999;">(type: zip/rar and below 10mb)</small></label>

                            <input type="file" name="file1"/><br/>
                             <label for="snapshot">Snapshot / Thumbnail:</label>

                            <input type="file" name="thumbnail" required/><br/>
                            <input type="hidden" name="_token" value="{{ csrf_token() }}">

                            <input type="submit" class="btn btn-primary" name="Submit" value="Publish" />

这是我的控制器文件中的代码（用于更新功能）：

/**
 * Update the specified resource in storage.
 *
 * @param  \Illuminate\Http\Request  $request
 * @param  int  $id
 * @return \Illuminate\Http\Response
 */
public function update(Request $request, $id)
{
      $this->validate($request, [

      'thumbnail' => 'mimes:jpg,jpeg,png|max:800',

      'file1' => 'mimes:rar,zip|max:10000',

      ]);



      $file1=$request->file('file1');

      if(is_null($request->file('file1'))){

        $p=pages::where('id', '=', $request['id'])->first();

        $attmt1=$p->attachment;

      }

      else

      {

      $upload_dir='uploads';

    $attmt1=$file1->getClientOriginalName();

    $move=$file1->move($upload_dir, $attmt1);

      }



      if(is_null($request->file('thumbnail'))){

        $p=pages::where('id', '=', $request['id'])->first();

        $image=$p->thumbnail;

      }

      else

      {

        $img=$request->file('thumbnail');

        $upload_dir='thumbnails';

        $image=$img->getClientOriginalName();

        $move=$img->move($upload_dir, $image);

        //end thumbnail process 

      }

    $mypage->title = $request->title;
    $mypage->body = $request->body;
    //$mypage->thumbnail = $request->thumbnail;
    $mypage->slug = str_slug($request->slug, '-');
    $mypage->menu_name = $request->menu_name;
    $mypage->save();

    return redirect()->route('menupages.index')->with('message', 'Page updated successfully.');
}

当我尝试编辑项目并上传图像（.jpg 格式）并单击提交时，我收到“缩略图必须是以下类型的文件：jpg、jpeg、png。”我检查了数据库，没有记录文件。

由于某种原因，它会将图像检测为某种外来图像文件类型，即使它是 .jpg。

Answer 1

您是否在表单上添加了 enctype="multipart/form-data"？

 <form method="post" Action= "" enctype="multipart/form-data">

 </form

Answer 2

当你想上传一些东西时，你总是需要在你的表单中添加以下代码。

enctype="multipart/form-data"

如果您不这样做，您将无法上传内容。 您是否将此添加到您的 html 表单中？

Answer 3

我从开发人员那里得到了帮助，所以我将发布我们是如何解决这个问题的。

这是函数的完整修改代码：

控制器：

  public function update(Request $request, $id)
 {
       $this->validate($request, [

      'thumbnail' => 'mimes:jpg,jpeg,png|max:300000',

      'file1' => 'mimes:rar,zip|max:10000',

      ]);



      $file1 = $request->file('file1');
      if(is_null($request->file('file1'))){

      //  $p=pages::where('id', '=', $request['id'])->first();
        $p = MenuPage::find($request['id']);
        $attmt1 = $p['attachment'];

      }

      else

      {

      $upload_dir = 'uploads';

    $attmt1 = $file1->getClientOriginalName();

    $file1->move($upload_dir, $attmt1);

      }



      if(is_null($request->file('thumbnail'))){

      //  $p=pages::where('id', '=', $request['id'])->first();
        $p = MenuPage::findOrFail($request['id']);

        $image = $p->thumbnail;

      }

      else

      {

        $img = $request->file('thumbnail');

        $upload_dir = 'thumbnails';

        $image = $img->getClientOriginalName();

        $img->move($upload_dir, $image);

        //end thumbnail process 

      }

    //$check=pages::where('id', $request['id'])

    //->update([

    //  'title' => $title,

    //  'body' =>$body, 

    //  'thumbnail' =>$thumbnail, 

   //   'slug' =>$slug, 

    //  'school' =>$school, 

   //   'attachment' =>$attmt1, 

   //   'menu_name' =>$menu_name,

   //   ]);

    $mypage = MenuPage::find($id);
    $mypage->title = $request->title;
    $mypage->body = $request->body;
   $mypage->thumbnail = $image;
    $mypage->attachment = $attmt1;
    $mypage->slug = str_slug($request->slug, '-');
    $mypage->menu_name = $request->menu_name;
    $mypage->save();

    return redirect()->route('menupages.index')->with('message', 'Page updated successfully.');
}

查看文件（底部）：

                                <label for="attachement1">Attach a file: <small style="color:#999;">(type: zip/rar and below 10mb)</small></label>

                            <input type="file" name="file1"/><br/>
                            <label for="snapshot">Snapshot / Thumbnail:</label>

                            <input type="file" name="thumbnail" required/><br/>

                            <input type="hidden" name="_token" value="{{ csrf_token() }}">
                            <input name="_method" type="hidden" value="PUT">

                            <input type="submit" class="btn btn-primary" name="Submit" value="Publish" />