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="{{$val->n_img}}" alt="" height="100" width="100" class="qq">
<input type="file" >--}}
<img width="100" height="100" src="{{$val->n_img}}">
<input type="file" name="touxiang" 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]);
}
}
