上传文件前端后端一体化代码记录

前端：

        <div class="col-sm-3">
            <input type="file" onchange="fileuploadIdeal(this)" multiple="multiple">
        </div>
        <div id="image_arr_ideal"></div> // 用来展示上传之后的图片

js:

function fileupload(obj){
    var data = new FormData();
    for (var i = 0; i < obj.files.length; i++) {
        var file = obj.files[i];
        // 检查文件类型
        if (!file.type.match('image.*')) {
            alert('只支持图片类型');
            return false;
        }
        // 添加文件到formData
        data.append('files[]', file, file.name);
    }

    if(confirm("确认上传吗?")){
        $.ajax({  
            url : "/admin/post_upload_file",  
            type : "POST",  
            data : data,
            // 告诉jQuery不要去处理发送的数据
            processData : false, 
            // 告诉jQuery不要去设置Content-Type请求头
            contentType : false,
            success : function(data) {
                if (data.code == 0) {
                    $('#new_desc_add').val(1); 
                    $('#image_arr').html('');
                    var image_arr = data.data.data;
                    for (var i = 0; i <= image_arr.length - 1; i++) {
                        var image = '<input type="image" src="' + image_arr[i]['url'] + '" width="80px" height="100px"/>&emsp;';
                        var imageurl = '<input type="hidden" name="descimage[]" value="' + image_arr[i]['image'] + '"/>&emsp;';
                       
                        $('#image_arr').append(image);
                        $('#image_arr').append(imageurl);
                    }
                }else{
                    alert(data.message);
                }
            },
        }); 
    }
}

后端：

    public function uploadFile(Request $request)
    {
        $request_all = $request->all();
        $files = $request_all['imgFile'];
        $filesData['file'] = $files;
        if (!$files) {
            return $this->errorJson(ErrorDef::ERROR_SERVICE, '请上传文件');
        }
        if ($request->isMethod('post')) {
            $image = [];
            foreach ($filesData as $key => $file) {
                // 文件是否上传成功
                if (!empty($file) && $file->isValid()) {
                    // 使用使用oss
                    $bool = Oss::uploadObject($file);
                    if ($bool['status'] == 1) {
                        $image[$key]['url'] = Oss::getUrl($bool['subpath'], 'crop');
                        $image[$key]['image'] = $bool['subpath'];
                    } else {
                        return $this->errorJson(ErrorDef::ERROR_SERVICE, '文件上传失败');
                    }
                }
            }
            $filepath = $image['file']['url'];
            return $this->responseJson(ErrorDef::SUCCESS, ['data' => $image]);
        }
    }

public static function uploadObject(UploadedFile $file)
{
    $ext = $file->getClientOriginalExtension();
    return self::upload($file->getPathname(), $ext);
}

public static function upload($filePath, $ext = 'jpg', $bucket = false, $prefix = '')
{
    try {
        $fileMd5 = md5_file($filePath);
    } catch (Exception $e) {
        return ['status' => -1, 'message' => '文件未找到 或者 文件不可读'];
    }
    if (!$prefix) {
        $prefix = config('oss.prefix');
    }
    $ossKey = join('/', [$prefix, substr($fileMd5, -2), substr($fileMd5, 0, 2), $fileMd5 . '.' . $ext]);
    $oss = new Oss(env('USE_ALIYUN_INTERNAL', true)); // 上传文件使用内网，免流量费
    if ($bucket) {
        $oss->ossClient->setBucket($bucket);
    }
    try {
        $result = $oss->ossClient->uploadFile($ossKey, $filePath);
        return ['status' => 1, 'subpath' => $ossKey, 'filemd5' => $fileMd5];
    } catch (Exception $e) {
        return ['status' => -2, 'msg' => $e->getMessage()];
    }
}

public function uploadFile($key, $file, $options = [])
{
  $handle = fopen($file, 'r');
  $value  = $this->ossClient->putObject(array_merge([
    'Bucket'        => $this->bucket,
    'Key'           => $key,
    'Content'       => $handle,
    'ContentLength' => filesize($file),
  ], $options));
  fclose($handle);

  return $value;
}