laravel实现图片上传预览,及编辑时可更换图片,并实时变化的例子


Posted in PHP onNovember 14, 2019

首先先看下效果图

这是添加的时候 可以上传照片

laravel实现图片上传预览,及编辑时可更换图片,并实时变化的例子

这是编辑的时候 可以修改照片

laravel实现图片上传预览,及编辑时可更换图片,并实时变化的例子

代码部分:

先看控制器:

/***
   * 添加商户
   * @return \Illuminate\Contracts\View\Factory|\Illuminate\View\View
   */
  public function add()
  {
 
    $data = null;
    return _view('admin.merchant.merchant.edit', compact('data'));
  }
 
  /***
   * 添加商户
   * @return \Illuminate\Contracts\View\Factory|\Illuminate\View\View
   */
  public function store(StoreMenchantRequest $request)
  {
    //判断手机号是否重复 重复不能添加
    //后面开发可能会去掉这个判断
    $merchant = Merchant::where('mobile', $request->mobile)->first();
    if (!empty($merchant)) {
      return back()->withErrors('该用户已存在');
    }
    $token = str_random(60);
    $api_token = $this->getToken($token);
    $newMerchantData = [
      'mobile' => $request->mobile,
      'api_token' => $api_token,
    ];
    DB::beginTransaction();
    $newMerchant = Merchant::create($newMerchantData);
    $newData = [
      'merchant_id' => $newMerchant->id,//Merchantid
      'merchant_principal' => $request->merchant_principal,//负责人
      'merchant_name' => $request->merchant_name,//商家名称
      'merchant_short_name' => $request->merchant_short_name,//商家简称
      'merchant_address' => $request->merchant_address,//商家地址
      'business_num' => $request->business_num,//注册号
      'business_address' => $request->business_address,//营业地址
      'business_name' => $request->business_name,//营业执照名称
      'business_person' => $request->person,//营业执照法人
      'identity_name' => $request->person,//身份证姓名
      'identity_num' => $request->identity_num,//身份证号
    ];
    //上传缩略图
    $input = $request->all();
    if (isset($input['file']) && is_object($input['file'])) {
 
      $file_name = save_image_file($input['file'], 'merchant_infos');
      if (!$file_name) {
        return back()->with('msg', '图片上传失败,请重试!');
      }
//      dd($file_name);
      $input['thumbnail'] = $file_name;
      unset($input['_token']);
      unset($input['file']);
    } else {
      return back()->with('msg', '请上传图片');
    }
    //上传内景图1
    if (isset($input['image1']) && is_object($input['image1'])) {
 
      $file_name_1 = save_image_file($input['image1'], 'merchant_infos');
      if (!$file_name_1) {
        return back()->with('msg', '图片上传失败,请重试!');
      }
 
      $input['interior_figure_one'] = $file_name_1;
      unset($input['_token']);
      unset($input['image1']);
    } else {
      return back()->with('msg', '请上传图片');
    }
    //上传内景图2
    if (isset($input['image2']) && is_object($input['image2'])) {
 
      $file_name_2 = save_image_file($input['image2'], 'merchant_infos');
      if (!$file_name_2) {
        return back()->with('msg', '图片上传失败,请重试!');
      }
      $input['interior_figure_two'] = $file_name_2;
      unset($input['_token']);
      unset($input['image2']);
    } else {
      return back()->with('msg', '请上传图片');
    }
    //上传内景图3
    if (isset($input['image3']) && is_object($input['image3'])) {
 
      $file_name_3 = save_image_file($input['image3'], 'merchant_infos');
      if (!$file_name_3) {
        return back()->with('msg', '图片上传失败,请重试!');
      }
      $input['interior_figure_three'] = $file_name_3;
      unset($input['_token']);
      unset($input['image3']);
    } else {
      return back()->with('msg', '请上传图片');
    }
 
    $merchantInfo = MerchantInfo::where('merchant_id', $newMerchant->id)->first();
    if (!empty($merchantInfo)) {
      return back()->withErrors('该用户已录入信息');
    }
    $homestayInfo = HomestayInfo::where('merchant_id', $newMerchant->id)->first();
    if (!empty($homestayInfo)) {
      return back()->withErrors('该用户已录入信息');
    }
    //录入商户信息
    $newData['thumbnail'] = $input['thumbnail'];
    $newData['interior_figure_one'] = $input['interior_figure_one'];
    $newData['interior_figure_two'] = $input['interior_figure_two'];
    $newData['interior_figure_three'] = $input['interior_figure_three'];
    $newData['content'] = $input['content'];
    $newMerchantInfo = MerchantInfo::create($newData);
    $newHomestayInfo = HomestayInfo::create($newData);
    if ($newMerchantInfo && $newHomestayInfo && $newMerchant) {
      DB::commit();
      admin_action_logs($newMerchant, "添加商户成功");
      return redirect()->route('admin.merchant.index')->with('msg', '添加成功');
    } else {
      DB::rollback();
      return back()->withErrors('添加失败,请联系管理员');
    }
 
 
  }

这边封装了一个上传图片的方法,调用即可

**
 * 调用的文件中需要 use Illuminate\Support\Facades\Input; Illuminate\Support\Facades\Storage;
 * save_image_file 保存图片文件 ,存在Storage::disk('uploads') 目录下
 * @var $file object 上传的图片文件,具体是在 request 中的 UploadedFile 类型的对象
 * @var $prefix_name string 可选保存的文件名前缀
 * @var $path string 文件路径
 * @return bool/string 如果通过验证 则返回在新的文件名
 */
if (!function_exists('save_image_file')) {
 
  function save_image_file(&$file, $prefix_name = '', $path = 'serve')
  {
    $file = isset($file) ? $file : null;
    if ($file != null && $file->isValid()) {
      // 获取文件相关信息
      $originalName = $file->getClientOriginalName(); // 文件原名
      $ext = $file->getClientOriginalExtension();   // 扩展名
      //dd($ext);
      $file->getClientOriginalName();
 
      if ($ext == "" && $file->getClientOriginalName() == 'blob') {
        $ext = 'png';
      }
      if (!preg_match('/jpg|png|gif$/is', $ext)) {
        return false;
      }
      //dd($file->getRealPath());
      $realPath = $file->getRealPath();  //临时文件的绝对路径
      $type = $file->getClientMimeType();   // image/jpeg
      // 上传文件
      $filename = $prefix_name . '-' . date('Y-m-d-H-i-s') . '-' . uniqid() . '.' . $ext;
      //dd($filename);
      $bool = Storage::disk($path)->put($filename, file_get_contents($realPath));
      if (!$bool) return false;
      return $filename;
    }
    return false;
  }
}

接下来是编辑时候 显示已经上传的图片 并且可以进行修改:

<div class="row">
  <div class="col-lg-6 col-sm-8 col-xs-12">
    <div class="panel panel-default">
      {{ Form::open(['method'=>'post','route' => ['admin.merchant.add_img_store'],'enctype'=>'multipart/form-data']) }}
      <div class="panel-heading">商户图片</div>
      <div class="panel-body">
        <input type="hidden" name="id" value="{{$data->id}}">
        <div class=" form-group">
          <?php $hasUrl = old_or_new_field('thumbnail', $data); ?>
          <div class="form-group {{!$hasUrl or 'has-error'}} has-feedback">
            <label class="control-label" for="file">
              <span class="font-red">*</span>
              <span>缩略图:</span>
              <span class="font-gray">(宽高为120px:120px):</span>
            </label>
            <div class="input-group">
              @if( $hasUrl )
                <input type="file" class="file-preview form-control" name="file" id="file" accept="image/*"
                    value="{{ old_or_new_field('thumbnail',$data) }}">
              @else
                <input type="file" class="file-preview form-control validate" name="file" required id="file"
                    accept="image/*"
                    value="{{ old_or_new_field('thumbnail',$data) }}">
              @endif
            </div>
          </div>
          <div class="file-preview-wrap">
            <img
                @if( old_or_new_field('thumbnail',$data) )
                src="{{asset('storage/serve').'/'.old_or_new_field('thumbnail',$data)}}" data-src="{{ asset('storage/serve'.old_or_new_img('thumbnail', $data, false))}}"
                @else
 
                src="{{asset('storage/serve').'/'. (isset($data->merchantInfo->thumbnail)?$data->merchantInfo->thumbnail:' ')}}" data-src="{{ asset('storage/serve').'/'. (isset($data->merchantInfo->thumbnail)?$data->merchantInfo->thumbnail:' ')}}"
                @endif
                id="file-preview" class="img-thumbnail" alt="图片预览" data-magnify="gallery">
 
          </div>
        </div>
        <div>
          <?php $hasUrl = old_or_new_field('interior_figure_one', $data); ?>
          <div class="form-group {{!$hasUrl or 'has-error'}} has-feedback">
            <label class="control-label" for="file">
              <span class="font-red">*</span>
              <span>内景图1:</span>
              <span class="font-gray">(宽高为375px:200px):</span>
            </label>
            <div class="input-group">
              @if( $hasUrl )
                <input type="file" class="file-preview-second form-control" name="image1" id="image1" accept="image/*"
                    value="{{ old_or_new_field('interior_figure_one',$data) }}">
              @else
                <input type="file" class="file-preview-second form-control validate" name="image1" required id="image1"
                    accept="image/*"
                    value="{{ old_or_new_field('interior_figure_one',$data) }}">
              @endif
            </div>
          </div>
          <div class="file-preview-wrap">
            <img
                @if( old_or_new_field('interior_figure_one',$data) )
                src="{{asset('storage/serve').'/'.old_or_new_field('interior_figure_one',$data)}}" data-src="{{ asset('storage/serve'.old_or_new_img('interior_figure_one', $data, false))}}"
                @else
                src="{{asset('storage/serve').'/'.(isset($data->merchantInfo->interior_figure_one)?$data->merchantInfo->interior_figure_one:'')}}" data-src="{{ asset('storage/serve').'/'.(isset($data->merchantInfo->interior_figure_one)?$data->merchantInfo->interior_figure_one:'')}}"
 
                @endif
                width="375px" height="200px" id="file-preview-second" class="img-thumbnail" alt="图片预览" data-magnify="gallery">
          </div>
        </div>
        <div >
          <?php $hasUrl = old_or_new_field('interior_figure_two', $data); ?>
          <div class="form-group {{!$hasUrl or 'has-error'}} has-feedback">
            <label class="control-label" for="file">
              <span class="font-red">*</span>
              <span>内景图2:</span>
              <span class="font-gray">(宽高为375px:200px):</span>
            </label>
            <div class="input-group">
              @if( $hasUrl )
                <input type="file" class="file-preview-third form-control" name="image2" id="image2" accept="image/*"
                    value="{{ old_or_new_field('interior_figure_two',$data) }}">
              @else
                <input type="file" class="file-preview-third form-control validate" name="image2" required id="image2"
                    accept="image/*"
                    value="{{ old_or_new_field('interior_figure_two',$data) }}">
              @endif
            </div>
          </div>
          <div class="file-preview-wrap">
            <img
                @if( old_or_new_field('interior_figure_two',$data) )
                {{--src="{{route('Img.uploads.file',[old_or_new_field('url',$data)])}}"--}}
                src="{{asset('storage/serve').'/'.old_or_new_field('interior_figure_two',$data)}}" data-src="{{ asset('storage/serve'.old_or_new_img('interior_figure_two', $data, false))}}"
                @else
                src="{{asset('storage/serve').'/'.(isset($data->merchantInfo->interior_figure_two)?$data->merchantInfo->interior_figure_two:'')}}" data-src="{{ asset('storage/serve').'/'.(isset($data->merchantInfo->interior_figure_two)?$data->merchantInfo->interior_figure_two:'')}}"
                @endif
                width="375px" height="200px" id="file-preview-third" class="img-thumbnail" alt="图片预览" data-magnify="gallery">
          </div>
        </div>
        <div>
          <?php $hasUrl = old_or_new_field('interior_figure_three', $data); ?>
          <div class="form-group {{!$hasUrl or 'has-error'}} has-feedback">
            <label class="control-label" for="file">
              <span class="font-red">*</span>
              <span>缩略图3:</span>
              <span class="font-gray">(宽高为375px:200px):</span>
            </label>
            <div class="input-group">
              @if( $hasUrl )
                <input type="file" class="file-preview-forth form-control" name="image3" id="image3" accept="image/*"
                    value="{{ old_or_new_field('interior_figure_three',$data) }}">
              @else
                <input type="file" class="file-preview-forth form-control validate" name="image3" required id="image3"
                    accept="image/*"
                    value="{{ old_or_new_field('interior_figure_three',$data) }}" >
              @endif
            </div>
          </div>
          <div class="file-preview-wrap">
            <img
                @if( old_or_new_field('interior_figure_three',$data) )
                {{--src="{{route('Img.uploads.file',[old_or_new_field('url',$data)])}}"--}}
                src="{{asset('storage/serve').'/'.old_or_new_field('interior_figure_three',$data)}}" data-src="{{ asset('storage/serve'.old_or_new_img('interior_figure_three', $data, false))}}"
                @else
                src="{{asset('storage/serve').'/'.(isset($data->merchantInfo->interior_figure_three)?$data->merchantInfo->interior_figure_three:'')}}" data-src="{{ asset('storage/serve').'/'.(isset($data->merchantInfo->interior_figure_three)?$data->merchantInfo->interior_figure_three:'')}}"
                @endif
                width="375px" height="200px" id="file-preview-forth" class="img-thumbnail" alt="图片预览" data-magnify="gallery">
          </div>
        </div>
      </div>
 
      <div class="text-center margin-bottom-sm">
        <button class="pretty-btn"> 编辑商户</button>
      </div>
      {{ Form::close() }}
    </div>
  </div>
</div>

编辑这边 的控制器代码是:

/***
 * 添加图片
 * @return \Illuminate\Contracts\View\Factory|\Illuminate\View\View
 */
public function add_img()
{
  $data = null;
  return _view('admin.merchant.merchant.add', compact('data'));
}
 
/***
 * 保存图片
 * @return \Illuminate\Contracts\View\Factory|\Illuminate\View\View
 */
public function add_img_store(Request $request)
{
  //上传缩略图
  $input = $request->all();
 
  if (isset($input['file']) && is_object($input['file'])) {
 
    $file_name = save_image_file($input['file'], 'merchant_infos');
    if (!$file_name) {
      return back()->with('msg', '图片上传失败,请重试!');
    }
 
    $input['thumbnail'] = $file_name;
    unset($input['_token']);
    unset($input['file']);
  } else {
    return back()->with('msg', '请上传图片');
  }
  //上传内景图1
  if (isset($input['image1']) && is_object($input['image1'])) {
 
    $file_name_1 = save_image_file($input['image1'], 'merchant_infos');
    if (!$file_name_1) {
      return back()->with('msg', '图片上传失败,请重试!');
    }
 
    $input['interior_figure_one'] = $file_name_1;
    unset($input['_token']);
    unset($input['image1']);
  } else {
    return back()->with('msg', '请上传图片');
  }
  //上传内景图2
  if (isset($input['image2']) && is_object($input['image2'])) {
 
    $file_name_2 = save_image_file($input['image2'], 'merchant_infos');
    if (!$file_name_2) {
      return back()->with('msg', '图片上传失败,请重试!');
    }
    $input['interior_figure_two'] = $file_name_2;
    unset($input['_token']);
    unset($input['image2']);
  } else {
    return back()->with('msg', '请上传图片');
  }
  //上传内景图3
  if (isset($input['image3']) && is_object($input['image3'])) {
 
    $file_name_3 = save_image_file($input['image3'], 'merchant_infos');
    if (!$file_name_3) {
      return back()->with('msg', '图片上传失败,请重试!');
    }
    $input['interior_figure_three'] = $file_name_3;
    unset($input['_token']);
    unset($input['image3']);
  } else {
    return back()->with('msg', '请上传图片');
  }
  //录入商户信息
 
  $merchang_info = MerchantInfo::where('merchant_id', '=', $input['id'])->first();
  if (empty($merchang_info)) {
    $newData['thumbnail'] = $input['thumbnail'];
    $newData['merchant_id'] = $input['id'];
    $newData['interior_figure_one'] = $input['interior_figure_one'];
    $newData['interior_figure_two'] = $input['interior_figure_two'];
    $newData['interior_figure_three'] = $input['interior_figure_three'];
    $newData['content']='';
    $result = MerchantInfo::create($newData);
  } /* $newData['thumbnail']=$input['thumbnail'];
  $newData['interior_figure_one']=$input['interior_figure_one'];
  $newData['interior_figure_two']=$input['interior_figure_two'];
  $newData['interior_figure_three']=$input['interior_figure_three'];
  // $newData['content']=$input['content'];
  $newMerchantInfo = MerchantInfo::create($newData);*/
  else {
    $merchang_info->thumbnail = $input['thumbnail']??'';
    $merchang_info->interior_figure_one = $input['interior_figure_one']??'';
    $merchang_info->interior_figure_two = $input['interior_figure_two']??'';
    $merchang_info->interior_figure_three = $input['interior_figure_three']??'';
    $result = $merchang_info->save();
  }
  if ($result) {
    DB::commit();
    admin_action_logs($result, "编辑商户成功");
    return redirect()->route('admin.merchant.index')->with('msg', '编辑成功');
  } else {
    DB::rollback();
    return back()->withErrors('编辑失败,请联系管理员');
  }
}

以上这篇laravel实现图片上传预览,及编辑时可更换图片,并实时变化的例子就是小编分享给大家的全部内容了,希望能给大家一个参考,也希望大家多多支持三水点靠木。

PHP 相关文章推荐
php 数组使用详解 推荐
Jun 02 PHP
基于PHP选项与信息函数的使用详解
May 10 PHP
Destoon实现多表查询示例
Aug 21 PHP
经典PHP加密解密函数Authcode()修复版代码
Apr 05 PHP
PHP对象链式操作实现原理分析
Oct 09 PHP
Windows 下安装 swoole 图文教程(php)
Jun 05 PHP
使用PHP反射机制来构造&quot;CREATE TABLE&quot;的sql语句
Mar 21 PHP
php-fpm重启导致的程序执行中断问题详解
Apr 29 PHP
laravel5.1框架基础之Blade模板继承简单使用方法分析
Sep 05 PHP
Laravel定时任务的每秒执行代码
Oct 22 PHP
微信小程序发送订阅消息的方法(php 为例)
Oct 30 PHP
通过PHP的Wrapper无缝迁移原有项目到新服务的实现方法
Apr 02 PHP
PHP实用小技巧之调用录像的方法
Dec 05 #PHP
Laravel框架控制器,视图及模型操作图文详解
Dec 04 #PHP
Laravel框架下载,安装及路由操作图文详解
Dec 04 #PHP
Laravel框架Eloquent ORM简介、模型建立及查询数据操作详解
Dec 04 #PHP
PHP实现二维数组(或多维数组)转换成一维数组的常见方法总结
Dec 04 #PHP
PHP实现提取多维数组指定一列的方法总结
Dec 04 #PHP
php实现快速对二维数组某一列进行组装的方法小结
Dec 04 #PHP
You might like
如何批量替换相对地址为绝对地址(利用bat批处理实现)
2013/05/27 PHP
Zend Framework教程之Zend_Config_Xml用法分析
2016/03/23 PHP
PHP使用SOAP扩展实现WebService的方法
2016/04/01 PHP
关于PHP转换超过2038年日期出错的问题解决
2017/06/28 PHP
让ie运行js时提示允许阻止内容运行的解决方法
2010/10/24 Javascript
js网页实时倒计时精确到秒级
2014/02/10 Javascript
用js编写的简单的计算器代码程序
2015/08/04 Javascript
基于jQuery实现的双11天猫拆红包抽奖效果
2015/12/01 Javascript
jquery对复选框(checkbox)的操作汇总
2016/01/13 Javascript
js获取form表单所有数据的简单方法
2016/08/18 Javascript
js拼接html字符串的注意事项
2016/10/13 Javascript
js评分组件使用详解
2017/06/06 Javascript
JavaScript变量作用域_动力节点Java学院整理
2017/06/27 Javascript
JS中精巧的自动柯里化实现方法
2017/12/12 Javascript
纯JS实现出生日期[年月日]下拉菜单效果
2018/06/01 Javascript
js实现左右两侧浮动广告
2018/07/09 Javascript
node.js之基础加密算法模块crypto详解
2018/09/11 Javascript
实例分析vue循环列表动态数据的处理方法
2018/09/28 Javascript
详解vue项目中实现图片裁剪功能
2019/06/07 Javascript
vue循环数组改变点击文字的颜色
2019/10/14 Javascript
js删除指定位置超链接中含有百度与360的标题
2021/01/06 Javascript
Python3基础之基本运算符概述
2014/08/13 Python
Python设计模式编程中解释器模式的简单程序示例分享
2016/03/02 Python
python实现感知器
2017/12/19 Python
python字符串和常用数据结构知识总结
2019/05/21 Python
python滑块验证码的破解实现
2019/11/10 Python
详解Python Opencv和PIL读取图像文件的差别
2019/12/27 Python
Python开发之身份证验证库id_validator验证身份证号合法性及根据身份证号返回住址年龄等信息
2020/03/20 Python
Python tkinter实现简单加法计算器代码实例
2020/05/13 Python
使用keras实现孪生网络中的权值共享教程
2020/06/11 Python
GUESS西班牙官方网上商城:美国服饰品牌
2017/03/15 全球购物
高中英语演讲稿范文
2014/04/24 职场文书
村安全生产责任书
2014/08/25 职场文书
python基础之类属性和实例属性
2021/10/24 Python
Nginx防盗链与服务优化配置的全过程
2022/01/18 Servers
python中对列表的删除和添加方法详解
2022/02/24 Python