在laravel5.2中实现点击用户头像更改头像的方法
视图层
!!!自己下载jquery文件和ajaxfileUpload的插件
<!DOCTYPE html> <html> <head lang="en"> <meta charset="UTF-8"> <title></title> <style> </style> </head> <script type="text/javascript"> //下面用于图片上传预览功能 function setImagePreview(avalue) { var docObj=document.getElementById("doc"); var imgObjPreview=document.getElementById("preview"); if(docObj.files &&docObj.files[0]) { //火狐下,直接设img属性 imgObjPreview.style.display = 'block'; //imgObjPreview.src = docObj.files[0].getAsDataURL(); //火狐7以上版本不能用上面的getAsDataURL()方式获取,需要一下方式 imgObjPreview.src = window.URL.createObjectURL(docObj.files[0]); } else { //IE下,使用滤镜 docObj.select(); var imgSrc = document.selection.createRange().text; var localImagId = document.getElementById("localImag"); //必须设置初始大小 localImagId.style.width = "150px"; localImagId.style.height = "180px"; //图片异常的捕捉,防止用户修改后缀来伪造图片 try{ localImagId.style.filter="progid:DXImageTransform.Microsoft.AlphaImageLoader(sizingMethod=scale)"; localImagId.filters.item("DXImageTransform.Microsoft.AlphaImageLoader").src = imgSrc; } catch(e) { alert("您上传的图片格式不正确,请重新选择!"); return false; } imgObjPreview.style.display = 'none'; document.selection.empty(); } ajaxFileUpload(); //上传图片 return true; } </script> <body> <center> <label> @foreach ($arr as $key=>$val) {{-- <img src="{{$val->n_img}}" alt="" height="100" width="100" class="qq"> <input type="file" id="file1" style="VISIBILITY: hidden" >--}} <img id="preview" width="100" height="100" src="{{$val->n_img}}"> <input type="file" name="touxiang" id="doc" style="display:none" οnchange="javascript:setImagePreview();"> @endforeach </label> </center> </body> </html> <script src="./js.js"></script> <script src="./ajaxfileupload.js"></script> <script type="text/javascript"> function ajaxFileUpload() { $.ajaxFileUpload ( { url: "{{url('up_img')}}", //用于文件上传的服务器端请求地址 secureuri: false, //是否需要安全协议,一般设置为false fileElementId: 'doc' } ); return false; } </script>
控制器层
<?php namespace App\Http\Controllers; use Illuminate\Http\Request; use App\Http\Requests; use DB; use Illuminate\Support\Facades\Input; class ImgController extends Controller { public function Index(){ $arr= DB::select("SELECT * FROM r_nav limit 1"); return view('index',['arr'=>$arr]); } //修改图片 public function up_img(Request $Request){ $n_file = Input::file('touxiang'); if($n_file->isValid()){ //获取文件名称 $clientName = $n_file -> getClientOriginalName(); $realPath = $n_file -> getRealPath(); //获取图片格式 $entension = $n_file -> getClientOriginalExtension(); //图片保存路径 $mimeTye = $n_file -> getMimeType(); $path = $n_file -> move('IMG'); } $ress = DB::table('r_nav')->where('n_id',11)->update(['n_img'=>$path]); } }
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