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這篇文章給大家分享的是有關(guān)laravel如何實(shí)現(xiàn)圖片上傳預(yù)覽及編輯時(shí)可更換圖片并實(shí)時(shí)變化的例子的內(nèi)容。小編覺(jué)得挺實(shí)用的，因此分享給大家做個(gè)參考，一起跟隨小編過(guò)來(lái)看看吧。
首先先看下效果圖
這是添加的時(shí)候 可以上傳照片
這是編輯的時(shí)候 可以修改照片
代碼部分:
先看控制器:
/***
* 添加商戶
* @return \Illuminate\Contracts\View\Factory|\Illuminate\View\View
*/
public function add()
{
$data = null;
return _view('admin.merchant.merchant.edit', compact('data'));
}
/***
* 添加商戶
* @return \Illuminate\Contracts\View\Factory|\Illuminate\View\View
*/
public function store(StoreMenchantRequest $request)
{
//判斷手機(jī)號(hào)是否重復(fù) 重復(fù)不能添加
//后面開發(fā)可能會(huì)去掉這個(gè)判斷
$merchant = Merchant::where('mobile', $request->mobile)->first();
if (!empty($merchant)) {
return back()->withErrors('該用戶已存在');
}
$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,//負(fù)責(zé)人
'merchant_name' => $request->merchant_name,//商家名稱
'merchant_short_name' => $request->merchant_short_name,//商家簡(jiǎn)稱
'merchant_address' => $request->merchant_address,//商家地址
'business_num' => $request->business_num,//注冊(cè)號(hào)
'business_address' => $request->business_address,//營(yíng)業(yè)地址
'business_name' => $request->business_name,//營(yíng)業(yè)執(zhí)照名稱
'business_person' => $request->person,//營(yíng)業(yè)執(zhí)照法人
'identity_name' => $request->person,//身份證姓名
'identity_num' => $request->identity_num,//身份證號(hào)
];
//上傳縮略圖
$input = $request->all();
if (isset($input['file']) && is_object($input['file'])) {
$file_name = save_image_file($input['file'], 'merchant_infos');
if (!$file_name) {
return back()->with('msg', '圖片上傳失敗,請(qǐng)重試!');
}
// dd($file_name);
$input['thumbnail'] = $file_name;
unset($input['_token']);
unset($input['file']);
} else {
return back()->with('msg', '請(qǐng)上傳圖片');
}
//上傳內(nèi)景圖1
if (isset($input['image1']) && is_object($input['image1'])) {
$file_name_1 = save_image_file($input['image1'], 'merchant_infos');
if (!$file_name_1) {
return back()->with('msg', '圖片上傳失敗,請(qǐng)重試!');
}
$input['interior_figure_one'] = $file_name_1;
unset($input['_token']);
unset($input['image1']);
} else {
return back()->with('msg', '請(qǐng)上傳圖片');
}
//上傳內(nèi)景圖2
if (isset($input['image2']) && is_object($input['image2'])) {
$file_name_2 = save_image_file($input['image2'], 'merchant_infos');
if (!$file_name_2) {
return back()->with('msg', '圖片上傳失敗,請(qǐng)重試!');
}
$input['interior_figure_two'] = $file_name_2;
unset($input['_token']);
unset($input['image2']);
} else {
return back()->with('msg', '請(qǐng)上傳圖片');
}
//上傳內(nèi)景圖3
if (isset($input['image3']) && is_object($input['image3'])) {
$file_name_3 = save_image_file($input['image3'], 'merchant_infos');
if (!$file_name_3) {
return back()->with('msg', '圖片上傳失敗,請(qǐng)重試!');
}
$input['interior_figure_three'] = $file_name_3;
unset($input['_token']);
unset($input['image3']);
} else {
return back()->with('msg', '請(qǐng)上傳圖片');
}
$merchantInfo = MerchantInfo::where('merchant_id', $newMerchant->id)->first();
if (!empty($merchantInfo)) {
return back()->withErrors('該用戶已錄入信息');
}
$homestayInfo = HomestayInfo::where('merchant_id', $newMerchant->id)->first();
if (!empty($homestayInfo)) {
return back()->withErrors('該用戶已錄入信息');
}
//錄入商戶信息
$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, "添加商戶成功");
return redirect()->route('admin.merchant.index')->with('msg', '添加成功');
} else {
DB::rollback();
return back()->withErrors('添加失敗，請(qǐng)聯(lián)系管理員');
}
}這邊封裝了一個(gè)上傳圖片的方法,調(diào)用即可
**
* 調(diào)用的文件中需要 use Illuminate\Support\Facades\Input; Illuminate\Support\Facades\Storage;
* save_image_file 保存圖片文件 ,存在Storage::disk('uploads') 目錄下
* @var $file object 上傳的圖片文件,具體是在 request 中的 UploadedFile 類型的對(duì)象
* @var $prefix_name string 可選保存的文件名前綴
* @var $path string 文件路徑
* @return bool/string 如果通過(guò)驗(yàn)證 則返回在新的文件名
*/
if (!function_exists('save_image_file')) {
function save_image_file(&$file, $prefix_name = '', $path = 'serve')
{
$file = isset($file) ? $file : null;
if ($file != null && $file->isValid()) {
// 獲取文件相關(guān)信息
$originalName = $file->getClientOriginalName(); // 文件原名
$ext = $file->getClientOriginalExtension(); // 擴(kuò)展名
//dd($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(); //臨時(shí)文件的絕對(duì)路徑
$type = $file->getClientMimeType(); // image/jpeg
// 上傳文件
$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 $filename;
}
return false;
}
}接下來(lái)是編輯時(shí)候 顯示已經(jīng)上傳的圖片 并且可以進(jìn)行修改:
<div class="row">
<div class="col-lg-6 col-sm-8 col-xs-12">
<div class="panel panel-default">
{{ Form::open(['method'=>'post','route' => ['admin.merchant.add_img_store'],'enctype'=>'multipart/form-data']) }}
<div class="panel-heading">商戶圖片</div>
<div class="panel-body">
<input type="hidden" name="id" value="{{$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>縮略圖:</span>
<span class="font-gray">(寬高為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="圖片預(yù)覽" 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>內(nèi)景圖1:</span>
<span class="font-gray">(寬高為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="圖片預(yù)覽" 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>內(nèi)景圖2:</span>
<span class="font-gray">(寬高為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="圖片預(yù)覽" 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>縮略圖3:</span>
<span class="font-gray">(寬高為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="圖片預(yù)覽" data-magnify="gallery">
</div>
</div>
</div>
<div class="text-center margin-bottom-sm">
<button class="pretty-btn"> 編輯商戶</button>
</div>
{{ Form::close() }}
</div>
</div>
</div>編輯這邊 的控制器代碼是:
/***
* 添加圖片
* @return \Illuminate\Contracts\View\Factory|\Illuminate\View\View
*/
public function add_img()
{
$data = null;
return _view('admin.merchant.merchant.add', compact('data'));
}
/***
* 保存圖片
* @return \Illuminate\Contracts\View\Factory|\Illuminate\View\View
*/
public function add_img_store(Request $request)
{
//上傳縮略圖
$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', '圖片上傳失敗,請(qǐng)重試!');
}
$input['thumbnail'] = $file_name;
unset($input['_token']);
unset($input['file']);
} else {
return back()->with('msg', '請(qǐng)上傳圖片');
}
//上傳內(nèi)景圖1
if (isset($input['image1']) && is_object($input['image1'])) {
$file_name_1 = save_image_file($input['image1'], 'merchant_infos');
if (!$file_name_1) {
return back()->with('msg', '圖片上傳失敗,請(qǐng)重試!');
}
$input['interior_figure_one'] = $file_name_1;
unset($input['_token']);
unset($input['image1']);
} else {
return back()->with('msg', '請(qǐng)上傳圖片');
}
//上傳內(nèi)景圖2
if (isset($input['image2']) && is_object($input['image2'])) {
$file_name_2 = save_image_file($input['image2'], 'merchant_infos');
if (!$file_name_2) {
return back()->with('msg', '圖片上傳失敗,請(qǐng)重試!');
}
$input['interior_figure_two'] = $file_name_2;
unset($input['_token']);
unset($input['image2']);
} else {
return back()->with('msg', '請(qǐng)上傳圖片');
}
//上傳內(nèi)景圖3
if (isset($input['image3']) && is_object($input['image3'])) {
$file_name_3 = save_image_file($input['image3'], 'merchant_infos');
if (!$file_name_3) {
return back()->with('msg', '圖片上傳失敗,請(qǐng)重試!');
}
$input['interior_figure_three'] = $file_name_3;
unset($input['_token']);
unset($input['image3']);
} else {
return back()->with('msg', '請(qǐng)上傳圖片');
}
//錄入商戶信息
$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, "編輯商戶成功");
return redirect()->route('admin.merchant.index')->with('msg', '編輯成功');
} else {
DB::rollback();
return back()->withErrors('編輯失敗，請(qǐng)聯(lián)系管理員');
}
}感謝各位的閱讀！關(guān)于“l(fā)aravel如何實(shí)現(xiàn)圖片上傳預(yù)覽及編輯時(shí)可更換圖片并實(shí)時(shí)變化的例子”這篇文章就分享到這里了，希望以上內(nèi)容可以對(duì)大家有一定的幫助，讓大家可以學(xué)到更多知識(shí)，如果覺(jué)得文章不錯(cuò)，可以把它分享出去讓更多的人看到吧！
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