Php Aws S3 CompleteMultipartUpload错误

致命错误：未捕获Aws\S3\Exception\InvalidRequestException:Aws错误代码：InvalidRequest，状态代码：400，Aws请求ID:B1A28EBE65521DF4，Aws错误类型：客户端，Aws错误消息：必须至少指定一个部件，用户代理：aws-sdk-php2/2.7.22 Guzzle/3.9.2 curl/7.40.0 PHP/5.6.6在第91行的C:\vhosts************.com\db*********\FileUploader\u v2\aws\Common\Exception\NamespaceExceptionFactory.PHP中抛出

每当我使用AWS S3运行我的多部分上传程序时，就会出现上述错误。我的程序应该在JS脚本中分割文件的一部分，然后使用XMLHTTPRequest将其发送到php脚本。那部分似乎工作得很好。但是，调用CompleteMultipartUpload时会出现问题。我从错误中得出的结论是我的零件太小或是空的

upload.htm：

var命令；
var文件；
var ownerName；
var总大小；
var partSize=2*1024*1024；//常数
var-sendBackData；
var总大小；
var sureUploadSize=0，ProbableUploadSize=0；
var Numpart；
var partsLeft=[]

    function _(el){
        return document.getElementById(el);
    }

    function calcTotalSize(file){
        var size_total = 0;
        for(var i = 0; i < file.length; i++){
            size_total += file[i].size;
        }
        return size_total;
    }

    function uploadFile(){
        file = _("file").files[0];
        console.log(file);
        ownerName = _("name").value;
        totalSize = file.size;
        command = 'CreateMultipartUpload';

        var formdata = new FormData();
        formdata.append("command", command);
        formdata.append("filename", file.name);
        formdata.append("name", ownerName);
        var ajax = new XMLHttpRequest();
        ajax.open("POST", "FileUploader.php", true);
        ajax.send(formdata);
        ajax.onreadystatechange = function() {
            if (ajax.readyState === 4) {
                sendBackData = JSON.parse(ajax.responseText);
                numParts = Math.ceil(totalSize / partSize);
                uploadPart(1);
            }
        };
    }

    function uploadPart(partNum){
        console.log("Uploading part " + partNum);
        console.log(sendBackData['uploadId']);
        command = 'UploadPart';

        if (partNum > numParts) {
            completeMultipartUpload();
            return;
        }

        var formdata = new FormData();

        var start = (partNum - 1) * partSize;
        var end = start + partSize;
        if (end > totalSize)
            end = totalSize;
        var length = end - start;
        var curBlobPart = file.slice(start, end);

        //console.log(sendBackData['uploadId']);

        formdata.append("file[]", curBlobPart);
        formdata.append("command", command);
        formdata.append("uploadId", sendBackData['uploadId']);
        formdata.append("key", sendBackData['key']);
        formdata.append("partNumber", partNum);

        var ajax = new XMLHttpRequest();
        ajax.open("POST", "FileUploader.php", true);
        ajax.addEventListener("load", completeHandler, false);
        ajax.addEventListener("error", errorHandler, false);
        ajax.addEventListener("abort", abortHandler, false);
        ajax.send(formdata);
        ajax.onreadystatechange = function() {
            if (ajax.readyState === 4) {
                uploadPart(partNum + 1);
            }
        };
    }

    function completeMultipartUpload() {
        command = 'CompleteMultipartUpload';

        var formdata = new FormData();
        formdata.append("command", command);
        formdata.append("uploadId", sendBackData['uploadId']);
        formdata.append("key", sendBackData['key']);

        var ajax = new XMLHttpRequest();
        ajax.open("POST", "FileUploader.php", true);
        ajax.addEventListener("load", completeHandler, false);
        ajax.addEventListener("error", errorHandler, false);
        ajax.addEventListener("abort", abortHandler, false);
        ajax.send(formdata);
        ajax.onreadystatechange = function() {
            if (ajax.readyState === 4) {
                alert("File uploaded successfully");
            }
        };
    }

    function progressHandler(event){
        _("loaded_n_total").innerHTML = "Uploaded "+event.loaded+" bytes of "+event.total;
        var percent = (event.loaded / event.total) * 100;
        _("progressBar").value = Math.round(percent);
        _("status").innerHTML = Math.round(percent)+"% uploaded... please wait";
    }
    function completeHandler(event){
        _("status").innerHTML = event.target.responseText;
        _("progressBar").value = 0;
    }
    function errorHandler(event){
        _("status").innerHTML = "Upload Failed";
    }
    function abortHandler(event){
        _("status").innerHTML = "Upload Aborted";
    }`

在我完成任务的方式上是否有明显的错误。我唯一的想法是我的零件尺寸太小，无法上传。如果是这样的话，我确实可以用我一直在做的项目的另一个版本来解决这个问题。
我只是花了太多的时间*在这个问题上，直到我意识到Parts参数应该嵌套在一个multiportupload条目中。我的代码现在如下所示：

$completeParams = Array(
    'Bucket' => $multipartUpload['Bucket'],
    'Key' => $multipartUpload['Key'],
    'MultipartUpload' => Array(
        'Parts' => $parts,
    ),
    'UploadId' => $multipartUpload['UploadId']
);

$res = $client->completeMultipartUpload($completeParams);

这很好用。至少在使用SDK版本3时。SDK的版本2要求部件直接使用$params

*我不会透露多少分钟
这真的很有用-没有任何文档或示例提到这一点！
$completeParams = Array(
    'Bucket' => $multipartUpload['Bucket'],
    'Key' => $multipartUpload['Key'],
    'MultipartUpload' => Array(
        'Parts' => $parts,
    ),
    'UploadId' => $multipartUpload['UploadId']
);

$res = $client->completeMultipartUpload($completeParams);