laravel--实现图片上传功能

在网站开发中图片上传的功能很常见，这里把我写的一个图片上传功能的代码分享一下，很简单。

首先是数据库部分，为了存放网站中所有的图片，这里单独写一个数据表来存放信息。

use Illuminate\Database\Schema\Blueprint;
use Illuminate\Database\Migrations\Migration;
use Illuminate\Support\Facades\Schema;
class CreateImageTable extends Migration
{
    /**
     * Run the migrations.
     *
     * @return void
     */
    public function up()
    {
        //
        Schema::create('images',function(Blueprint $table){
            $table->increments('id')->index();
            $table->integer('user_id')->unsigned();
            $table->integer('page_id')->unsigned();
            $table->string('path');
            $table->foreign('user_id')->references('id')->on('users');//外键
            $table->foreign('page_id')->references('id')->on('page');//外键
        });
    }

    /**
     * Reverse the migrations.
     *
     * @return void
     */
    public function down()
    {
        //
        Schema::drop('images');
    }
}

下面是model部分

namespace App;

use Illuminate\Database\Eloquent\Model;
class Image extends Model
{
    //
    protected $table="images";
    protected $fillable=['user_id','path'];
    public $timestamps=false;//不希望model自动维护create_at public_at字段
}

上传的前端代码，注意要填写enctype="multipart/form-data"

控制器部分

namespace App\Http\Controllers;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\Auth;
use Illuminate\Support\Facades\Storage;
use Illuminate\Support\Facades\Validator;
use Illuminate\Support\Facades\File;
use App\Http\Requests;
use App\Image;
use Illuminate\Support\Facades\Response;

class imgageController extends Controller
{
    //
    public function show($imgName){



    }
    public function upload(Request $request，$direc){
        $message="123";
        $validator=Validator::make($request->all(),[
            'file'=>'required|image'
        ] );
        if($validator->fails()){
            /*Response::json([
                'success'=>false,
                'message'=>$validator->errors()
            ]);*/
        }else{
            $file=$request->file('file');//获取文件
            $fileName=md5(time().rand(0,10000)).'.'.$file->getClientOriginalName();//随机名称+获取客户的原始名称
            $savePath = $direc.$fileName;//存储到指定文件，例如image/.filename public/.filename
            Storage::put($savePath,File::get($file));//通过Storage put方法存储   File::get获取到的是文件内容
            if(Storage::exists($savePath)){
                $user=Auth::user();
                Image::create([
                    'user_id'=>$user->id,
                    'path'=>$savePath
                ]);
            }
        }
    }
}