我测试的文件格式是wav,返回的内容是空的

问题汇总1. OBS 分片上传无法验证文件一致性cid:link_0 通过sdk提供的方法生成MD5 在生成相关临时上传链接，但因为属于大文件需要分片，分片上传不管是不是该文件的分片内容，都会一直与上传的MD5数据不一致期望结果：麻烦官方会告知，临时链接分片如何进行一致性校验2. obs桶下的单个对象是否有大小限制cid:link_1 OBS管理控制台支持批量上传文件，单次最多支持100个文件同时上传，总大小不超过5GB。如果只上传1个文件，则这个文件最大为5GB。 OBS Browser+、obsutil、API和SDK上传的单个对象最大是48.8TB。3. [java]obs在使用InputStream stream = obsObject.getObjectContent() 返回为nullcid:link_2 ListObjectsRequest不能获取到object内容，请使用getobject方法，然后调用getObjectContent。OBS官方帮助文档地址为：cid:link_3

"C:\Program Files\Java\jdk-17\bin\java.exe" "-javaagent:D:\software\IntelliJ IDEA 2024.1.4\lib\idea_rt.jar=53691:D:\software\IntelliJ IDEA 2024.1.4\bin" -Dfile.encoding=UTF-8 -classpath 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com.tdtech.pdm.Test17:45:49.776 [main] INFO com.obs.services.AbstractClient -- Storage|1|HTTP+XML|ObsClient||||2024-08-23 17:45:49|2024-08-23 17:45:49|||0|17:45:49.778 [main] WARN com.obs.services.AbstractClient -- [OBS SDK Version=3.23.9];[Endpoint=https://obs.cn-north-1.myhuaweicloud.com:443/];[Access Mode=Virtul Hosting]initiate multipart upload using temporary signature url: https://tdwecode.obs.cn-north-1.myhuaweicloud.com:443/obs_test/zhuzhutest1.txt?uploads&AccessKeyId=HQMNBQ6UYRDZF6YVKOGT&Expires=1724409949&Signature=DE6BmTjRZcKPdzC%2FJWwweGA70QI%3D http://192.168.210.228:8791/obs/obs_test/zhuzhutest1.txt?uploads&AccessKeyId=HQMNBQ6UYRDZF6YVKOGT&Expires=1724409949&Signature=DE6BmTjRZcKPdzC%2FJWwweGA70QI%3DStatus:200Content:<?xml version="1.0" encoding="UTF-8" standalone="yes"?><InitiateMultipartUploadResult xmlns="http://obs.myhwclouds.com/doc/2015-06-30/"><Bucket>tdwecode</Bucket><Key>obs_test/zhuzhutest1.txt</Key><UploadId>000001917EA0C2D785CDFDF846F109CB</UploadId></InitiateMultipartUploadResult>InitiateMultiPartUpload successfullyuploadId:000001917EA0C2D785CDFDF846F109CBupload part using temporary signature url:SignedUrl:https://tdwecode.obs.cn-north-1.myhuaweicloud.com:443/obs_test/zhuzhutest1.txt?AccessKeyId=HQMNBQ6UYRDZF6YVKOGT&Expires=1724409950&partNumber=1&uploadId=000001917EA0C2D785CDFDF846F109CB&Signature=AgJXMahe4GJq1I%2FjDJNMtakIXU4%3D http://192.168.210.228:8791/obs/obs_test/zhuzhutest1.txt?AccessKeyId=HQMNBQ6UYRDZF6YVKOGT&Expires=1724409950&partNumber=1&uploadId=000001917EA0C2D785CDFDF846F109CB&Signature=AgJXMahe4GJq1I%2FjDJNMtakIXU4%3DStatus:400Content:<?xml version="1.0" encoding="UTF-8" standalone="yes"?><Error><Code>BadDigest</Code><Message>The Content-MD5 you specified did not match what we received.</Message><RequestId>000001917EA0C30C85CDF4A2C5C611C7</RequestId><HostId>+DVNnjYfkU0tC3gPhGi27QTmbqI9zbkx7whl4dZIAEUM6CRW3bSV8+/LDgM8AFHX</HostId><CalculatedDigest>w1zH2NkXKKDLBSgxvE7zcg==</CalculatedDigest><ExpectedDigest>AGqI7X1YJq+Q0426Rmb9iQ==</ExpectedDigest></Error>UploadPart successfullyupload bytesUploaded:1048576upload part using temporary signature url:SignedUrl:https://tdwecode.obs.cn-north-1.myhuaweicloud.com:443/obs_test/zhuzhutest1.txt?AccessKeyId=HQMNBQ6UYRDZF6YVKOGT&Expires=1724409950&partNumber=2&uploadId=000001917EA0C2D785CDFDF846F109CB&Signature=YbxaUuYBvPycPlyYpzQKbveHMHo%3D http://192.168.210.228:8791/obs/obs_test/zhuzhutest1.txt?AccessKeyId=HQMNBQ6UYRDZF6YVKOGT&Expires=1724409950&partNumber=2&uploadId=000001917EA0C2D785CDFDF846F109CB&Signature=YbxaUuYBvPycPlyYpzQKbveHMHo%3DStatus:400Content:<?xml version="1.0" encoding="UTF-8" standalone="yes"?><Error><Code>BadDigest</Code><Message>The Content-MD5 you specified did not match what we received.</Message><RequestId>000001917EA0C4F88056738D8C201A2E</RequestId><HostId>JigWWOumvQjvBwZc6mvX4EgckS9ROyNdOOwW3kB2Iz0lYXUFY3fdKNYNu72XY0Wx</HostId><CalculatedDigest>w1zH2NkXKKDLBSgxvE7zcg==</CalculatedDigest><ExpectedDigest>AGqI7X1YJq+Q0426Rmb9iQ==</ExpectedDigest></Error>UploadPart successfullyupload bytesUploaded:2097152upload part using temporary signature url:SignedUrl:https://tdwecode.obs.cn-north-1.myhuaweicloud.com:443/obs_test/zhuzhutest1.txt?AccessKeyId=HQMNBQ6UYRDZF6YVKOGT&Expires=1724409951&partNumber=3&uploadId=000001917EA0C2D785CDFDF846F109CB&Signature=Ie%2FBpSBj5lBZ%2BPrjootyiH%2BWG8c%3D http://192.168.210.228:8791/obs/obs_test/zhuzhutest1.txt?AccessKeyId=HQMNBQ6UYRDZF6YVKOGT&Expires=1724409951&partNumber=3&uploadId=000001917EA0C2D785CDFDF846F109CB&Signature=Ie%2FBpSBj5lBZ%2BPrjootyiH%2BWG8c%3DStatus:400Content:<?xml version="1.0" encoding="UTF-8" standalone="yes"?><Error><Code>BadDigest</Code><Message>The Content-MD5 you specified did not match what we received.</Message><RequestId>000001917EA0C68884CE297F6D277E20</RequestId><HostId>Zp2NH4um3isV2jSAePvQImwAIoq81EESx1ucb4mV8+zbB+SjW+ZICu3LL/8DnOJ2</HostId><CalculatedDigest>w1zH2NkXKKDLBSgxvE7zcg==</CalculatedDigest><ExpectedDigest>AGqI7X1YJq+Q0426Rmb9iQ==</ExpectedDigest></Error>UploadPart successfullyupload bytesUploaded:3145728upload part using temporary signature url:SignedUrl:https://tdwecode.obs.cn-north-1.myhuaweicloud.com:443/obs_test/zhuzhutest1.txt?AccessKeyId=HQMNBQ6UYRDZF6YVKOGT&Expires=1724409951&partNumber=4&uploadId=000001917EA0C2D785CDFDF846F109CB&Signature=7QZeOYB%2BvXatbfmTDhZ6xCGBTs4%3D http://192.168.210.228:8791/obs/obs_test/zhuzhutest1.txt?AccessKeyId=HQMNBQ6UYRDZF6YVKOGT&Expires=1724409951&partNumber=4&uploadId=000001917EA0C2D785CDFDF846F109CB&Signature=7QZeOYB%2BvXatbfmTDhZ6xCGBTs4%3DStatus:400Content:<?xml version="1.0" encoding="UTF-8" standalone="yes"?><Error><Code>BadDigest</Code><Message>The Content-MD5 you specified did not match what we received.</Message><RequestId>000001917EA0C82985CE8640C0D7BB38</RequestId><HostId>d7aQXpNxkolXh1jtbSfb/4RB7ciehZzj1VKl945sHWvsR83cPI1VpqnII5NCI8OL</HostId><CalculatedDigest>w1zH2NkXKKDLBSgxvE7zcg==</CalculatedDigest><ExpectedDigest>AGqI7X1YJq+Q0426Rmb9iQ==</ExpectedDigest></Error>UploadPart successfullyupload bytesUploaded:4194304upload part using temporary signature url:SignedUrl:https://tdwecode.obs.cn-north-1.myhuaweicloud.com:443/obs_test/zhuzhutest1.txt?AccessKeyId=HQMNBQ6UYRDZF6YVKOGT&Expires=1724409952&partNumber=5&uploadId=000001917EA0C2D785CDFDF846F109CB&Signature=1gT47k0ShYLKavnvqyt3v9iO1B4%3D http://192.168.210.228:8791/obs/obs_test/zhuzhutest1.txt?AccessKeyId=HQMNBQ6UYRDZF6YVKOGT&Expires=1724409952&partNumber=5&uploadId=000001917EA0C2D785CDFDF846F109CB&Signature=1gT47k0ShYLKavnvqyt3v9iO1B4%3DStatus:400Content:<?xml version="1.0" encoding="UTF-8" standalone="yes"?><Error><Code>BadDigest</Code><Message>The Content-MD5 you specified did not match what we received.</Message><RequestId>000001917EA0CAAD804FE38184B57E1A</RequestId><HostId>SMEw9ktkM6ZbJax02MbRDNmcXUFsBNx37jgc+Q5IEqgPUMuEkOZq25pw/ZIxwy6X</HostId><CalculatedDigest>w1zH2NkXKKDLBSgxvE7zcg==</CalculatedDigest><ExpectedDigest>AGqI7X1YJq+Q0426Rmb9iQ==</ExpectedDigest></Error>UploadPart successfullyupload bytesUploaded:5242880File uploaded successfully: 5242880 byteslist parts using temporary signature url: https://tdwecode.obs.cn-north-1.myhuaweicloud.com:443/obs_test/zhuzhutest1.txt?AccessKeyId=HQMNBQ6UYRDZF6YVKOGT&Expires=1724409952&uploadId=000001917EA0C2D785CDFDF846F109CB&Signature=ojp%2FGIZaS7dJJ8oRGfQAfyNp3XU%3D http://192.168.210.228:8791/obs/obs_test/zhuzhutest1.txt?AccessKeyId=HQMNBQ6UYRDZF6YVKOGT&Expires=1724409952&uploadId=000001917EA0C2D785CDFDF846F109CB&Signature=ojp%2FGIZaS7dJJ8oRGfQAfyNp3XU%3DStatus:200转换中:<?xml version="1.0" encoding="UTF-8" standalone="yes"?><ListPartsResult xmlns="http://obs.myhwclouds.com/doc/2015-06-30/"><Bucket>tdwecode</Bucket><Key>obs_test/zhuzhutest1.txt</Key><UploadId>000001917EA0C2D785CDFDF846F109CB</UploadId><Initiator><ID>domainID/6e9db1d1a2654c89845263d66ecd87cc:userID/28772be9dff54b3fbf18ae5d9d22251b</ID></Initiator><Owner><ID>6e9db1d1a2654c89845263d66ecd87cc</ID></Owner><StorageClass>STANDARD</StorageClass><PartNumberMarker>0</PartNumberMarker><NextPartNumberMarker>0</NextPartNumberMarker><MaxParts>1000</MaxParts><IsTruncated>false</IsTruncated></ListPartsResult>Content:<?xml version="1.0" encoding="UTF-8" standalone="yes"?><ListPartsResult xmlns="http://obs.myhwclouds.com/doc/2015-06-30/"><Bucket>tdwecode</Bucket><Key>obs_test/zhuzhutest1.txt</Key><UploadId>000001917EA0C2D785CDFDF846F109CB</UploadId><Initiator><ID>domainID/6e9db1d1a2654c89845263d66ecd87cc:userID/28772be9dff54b3fbf18ae5d9d22251b</ID></Initiator><Owner><ID>6e9db1d1a2654c89845263d66ecd87cc</ID></Owner><StorageClass>STANDARD</StorageClass><PartNumberMarker>0</PartNumberMarker><NextPartNumberMarker>0</NextPartNumberMarker><MaxParts>1000</MaxParts><IsTruncated>false</IsTruncated></ListPartsResult>ListParts successfullytdwecodeobs_test/zhuzhutest1.txt000001917EA0C2D785CDFDF846F109CBInitiator(id=domainID/6e9db1d1a2654c89845263d66ecd87cc:userID/28772be9dff54b3fbf18ae5d9d22251b)nulljava.lang.NullPointerException: Cannot invoke "java.util.List.forEach(java.util.function.Consumer)" because the return value of "com.tdtech.pdm.obs.dto.ListPartsResult.getParts()" is null at com.tdtech.pdm.Test.getUploadPart(Test.java:328) at com.tdtech.pdm.Test.uploadFileTest(Test.java:168) at com.tdtech.pdm.Test.main(Test.java:74)通过sdk提供的方法生成MD5 在生成相关临时上传链接，但因为属于大文件需要分片，分片上传不管是不是该文件的分片内容，都会一直与上传的MD5数据不一致期望结果：麻烦官方会告知，临时链接分片如何进行一致性校验

当一个桶下的文件，一直在追加写入的时候，文件大小是否有限制

ListObjectsRequest request = new ListObjectsRequest(BUCKET_NAME); request.setPrefix(prefix);ObjectListing result = obsClient.listObjects(request);for (ObsObject obsObject : result.getObjects()) {try (InputStream stream = obsObject.getObjectContent()) { // do something } catch (Exception e) { }}

帮助文档OBS服务环境搭建 cid:link_2开发环境准备 cid:link_3安装SDK cid:link_4获取服务地址 cid:link_5初始化OBS客户端 cid:link_6创建桶 cid:link_7上传对象 cid:link_8下载对象 cid:link_9列举对象 cid:link_10删除对象 cid:link_11OBS客户端通用示例 cid:link_12视频教程对象存储服务：便捷管理存储资源 cid:link_0沙盘试验OBS基础入门实践 cid:link_1快速上手对象存储服务 OBS cid:link_13

// 创建ObsClient实例 var obsClient = new ObsClient({ // 认证用的ak和sk硬编码到代码中或者明文存储都有很大的安全风险，建议在配置文件或者环境变量中密文存放，使用时解密，确保安全；本示例以ak和sk保存在环境变量中为例，运行本示例前请先在本地环境中设置环境变量AccessKeyID和SecretAccessKey。 // 前端本身没有process对象，可以使用webpack类打包工具定义环境变量，就可以在代码中运行了。 // 您可以登录访问管理控制台获取访问密钥AK/SK，获取方式请参见https://support.huaweicloud.com/usermanual-ca/ca_01_0003.html access_key_id: process.env.AccessKeyID, secret_access_key: process.env.SecretAccessKey, // 这里以华北-北京四为例，其他地区请按实际情况填写 server: 'https://obs.cn-north-4.myhuaweicloud.com' });

问题描述：我们目前有一个下载，下载文件是对象存储里面的一个文档。 用户在前端点击下载的时候，浏览器会新标签页打开这个对象存储文档的地址。用户复制出去，其他人就可以随意打开这个文档，看到里面的内容。想要实现的情况：用户通过复制出去的地址，别人无法进行打开或者查看里面的内容。

使用s3 sdk v2版本的sdk访问华为云，访问报api error IllegalLocationConstraintException: The  location constraint is incompatible for the

Exception errorcode: IllegalLocationConstraintException, when create a bucket.Exception errormessage: The location constraint is incompatible for the region specific endpoint this request was sent to.异常错误代码：创建bucket时出现IllegalLocationConstraintException。 异常错误消息：位置约束与此请求发送到的特定于区域的终结点不兼容。

sdk版本为3.21.11，实现的功能是依次下载obs内多个文件，并打包生成压缩包放在硬盘路径内首先在本地pc测试无问题，均能正常依次下载文件，但在华为云服务器（华北北京4的服务器，带宽5M）上运行，有很高频率压缩包会生成失败使用文档提供的 带获取进度的下载 示例来测试，观察日志发现，压缩包生成失败的原因，是在某几个文件上会有很高的频率下载到一定进度后就无响应（进度百分比的日志输出到不固定的某个进度后就停止了），直到超过设置的ConnectionTimeout和SocketTimeout时间，才抛出了SocketTimeoutException: Read timed out的异常（未捕获到ObsException异常），进而造成压缩包生成失败问题1：是否有办法继续定位 文件下载到一定进度后就无响应 问题原因的办法？问题2：如果考虑 捕获到SocketTimeoutException: Read timed out后进行重试机制，这边就希望能将设置的ConnectionTimeout和SocketTimeout时间缩小以减少重试的等待时间，但如果因为下载的文件过大，导致文件没有在这两个时间内下载完成，是否也会直接下载失败？注：试过直接在服务器下的浏览器访问这几个文件的url地址，均能正常获取到，所以我猜不是网络原因

1.是否可以使用腾讯或阿里弹性云服务器的k8s中挂载华为并行文件系统2.挂载后是否可以像华为弹性云一样在本地对文件进行 增/删/改 操作

问题  1. 问题：obs使用inputStream流式分段上传文件失败  论坛地址：https://bbs.huaweicloud.com/forum/thread-0210153832307793018-1-1.html 解决方案：obs java sdk不支持流进行分段上传，建议先落盘再用https://support.huaweicloud.com/sdk-java-devg-obs/obs_21_0611.html方式上传对象。  2. 问题：使用Obs，怎么用java获取临时凭证  之前用的别的云，实现代码如下：   ``` DefaultProfile profile = DefaultProfile.getProfile(  OssConfiguration.region, OssConfiguration.accessKey, OssConfiguration.secretKey);  IAcsClient client = new DefaultAcsClient(profile);  AssumeRoleRequest request = new AssumeRoleRequest();  request.setDurationSeconds(OssConfiguration.expire);  request.setRoleArn(OssConfiguration.roleArn);  request.setRoleSessionName(OssConfiguration.roleSessionName);  AssumeRoleResponse.Credentials response = client.getAcsResponse(request).getCredentials();  ```  切换到华为云，代码要怎么实现呢， 使用到哪些类？  论坛地址：https://bbs.huaweicloud.com/forum/thread-0273153378583756006-1-1.html 解决方案：通过委托获取临时访问密钥和securitytoken：https://support.huaweicloud.com/api-iam/iam_04_0101.html   问题2：这个api看见了，不知道在java怎么弄。我想问的是“使用到哪些类”，具体怎么实现？ 我查到类似代码： BasicCredentials basicCredentials = new BasicCredentials()     .withAk(ak)     .withSk(sk)     .withSecurityToken(securityToken)     .withProjectId(projectId)  这个里面的ak、sk、projectId是配置好的，那securityToken这个要调用什么类怎么获取呢？ 2024-06-13 10:08:30 解决方案2：可以用这个BasicCredentials basicCredentials = new BasicCredentials()  试试   附录：华为云OBS参考文档地址 1. Java https://support.huaweicloud.com/sdk-java-devg-obs/obs_21_0001.html 2. Python https://support.huaweicloud.com/sdk-python-devg-obs/obs_22_0400.html 3. C https://support.huaweicloud.com/sdk-c-devg-obs/obs_20_0004.html 4. Go https://support.huaweicloud.com/sdk-go-devg-obs/obs_23_0001.html 5. BrowserJS https://support.huaweicloud.com/sdk-browserjs-devg-obs/obs_24_0001.html 6. NET https://support.huaweicloud.com/sdk-dotnet-devg-obs/obs_25_0001.html 7. Android https://support.huaweicloud.com/sdk-android-devg-obs/obs_26_0001.html 8. iOS https://support.huaweicloud.com/sdk-ios-devg-obs/obs_27_0001.html 9. PHP https://support.huaweicloud.com/sdk-php-devg-obs/obs_28_0001.html 10. Node.js https://support.huaweicloud.com/sdk-nodejs-devg-obs/obs_29_0001.html 

我现在已经下载了C-OBS,并且已经编译成功获得了库文件，如何将这些库文件导入到C++项目中呢，请给出详细的操作及设置步骤，需要设置哪些路径等等，我是一名小白，希望得到大家的帮助，谢谢!

const obs_client = new ObsClient(          {            access_key_id: this.OBS_data.access_key_id, // 你的ak            secret_access_key: this.OBS_data.secret_access_key, // 你的sk            server: this.OBS_data.endpoint, // 你的endPoint          }        )        // 下载对象的目标路径，包含文件名。        const SaveAsFile = 'C:\Windows\zbcfile';        obs_client.getObject({          Bucket: this.OBS_data.bucket_name,          Key: file.name,          // SaveAsFile,          // SaveAsStream: true        }, (err, result) => {          if (err) {            console.log('GetObject Failed')            console.error('Error-->' + err);          } else {            if (result.CommonMsg.Status < 300) {              console.log(result.InterfaceResult.Content)              //文件流进行下载---------------------------------------------------              // this_.$downloadBlob(new Blob([result.InterfaceResult.Content],{type:result.InterfaceResult.ContentType}), file.name);              // 拼接的文件地址下载-----------------------------              // const fileUrl = `http://${this.OBS_data.bucket_name}.${this.OBS_data.endpoint}/${file.name}`              // const link = document.createElement('a');              // link.href = fileUrl;              // link.style.display = 'none';              // document.body.appendChild(link);              // link.click();              // document.body.removeChild(link);            } else {              console.log('GetObject Failed')              console.log('ErrorCode-->' + result.CommonMsg.Code);              console.log('ErrorMessage-->' + result.CommonMsg.Message);            }          }        });