laravel5.2中点击用户头像更改头像

来源：互联网发布：为什么安装不了知乎编辑：程序博客网时间：2024/05/29 10:59

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" onchange="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

<?phpnamespace 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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