aidanmo_个人页

管理员您好，请问如何修改权限？ 我们用OssSample运行结果总是只传了一个0kb文件上来，打开里面显示“OSS Sample” 麻烦您帮我们看下，这是我们的运行结果 ----- IsBucketExist ----- false ----- CreateBucket ----- Success ----- PutObjectWithData ------ Success ----- !GetObjectWithIfMatch ------ Success              PreconditionFailed                   At least one of the pre-conditions you specified did not hold.                   If-Match                   7c29c02f-6223-c401-4a54-37220933bf43                   storage.aliyun.com      ----- GettObjectWithIfMatch ------ Exception in thread 'main' java.lang.NullPointerException     at com.aliyun.oss.api.Utils.saveInputStreamToFile(Utils.java:182)     at com.aliyun.oss.api.OSSClient.getObjectToFile(OSSClient.java:669)     at OssSample.main(OssSample.java:146)