在使用网易云对象存储进行文件管理的时候，根据网易提供的文档方法获取到的链接，打开的时候总是提示权限不对，无奈之下提交了工单，跟客服交涉了好久，终于搞定了，问题就出在一句话上 TAT。（话说，网易咱的文档能不能走点心 /(ㄒoㄒ)/~~）

这是网易云对象存储获取私有对象下载链接的方法：

Credentials credentials;
credentials = new BasicCredentials(accessKey, secretKey);
NosClient client = new NosClient(credentials);
// 配置client
String bucketName = "your-bucketname";
String key = "object-name";
GeneratePresignedUrlRequest generatePresignedUrlRequest = new GeneratePresignedUrlRequest(bucketName, key);

//setExpiration为当前时间点+过期时间，设置可下载URL的过期时间。默认过期时间为1天。
generatePresignedUrlRequest.setExpiration(new Date(System.currentTimeMillis()+3600*1000*24));
URL url = nosClient.generatePresignedUrl(generatePresignedUrlRequest);
System.out.println(url);

这是修改后正确的方法：

Credentials credentials;
credentials = new BasicCredentials(accessKey, secretKey);
NosClient client = new NosClient(credentials);

**//少了这一句话 /(ㄒoㄒ)/~~ ，根据开发文档，endPoint目前只有一个，写死就行
String endPoint = "nos-eastchina1.126.net";
client.setEndpoint(endPoint);**


// 配置client
String bucketName = "your-bucketname";
String key = "object-name";
GeneratePresignedUrlRequest generatePresignedUrlRequest = new GeneratePresignedUrlRequest(bucketName, key);

//setExpiration为当前时间点+过期时间，设置可下载URL的过期时间。默认过期时间为1天。
generatePresignedUrlRequest.setExpiration(new Date(System.currentTimeMillis()+3600*1000*24));
URL url = nosClient.generatePresignedUrl(generatePresignedUrlRequest);
System.out.println(url);