objectName cannot be null(aws中,java代码)请问该如何改进?
时间: 2024-05-12 16:16:54 浏览: 8
这个错误通常是由于在使用AWS Java SDK时未正确设置对象名称而导致的。您可以通过确保将对象名称设置为非空字符串来解决此问题。例如,您可以使用以下代码设置对象名称:
```
PutObjectRequest request = new PutObjectRequest(bucketName, objectKey, new File(filePath));
request.setMetadata(new ObjectMetadata());
request.getMetadata().setContentDisposition("attachment; filename=\"" + fileName + "\"");
request.getMetadata().setCacheControl("public, max-age=31536000");
request.getMetadata().setContentType(getMimeType(fileName));
request.withCannedAcl(CannedAccessControlList.PublicRead);
request.setStorageClass(StorageClass.StandardInfrequentAccess);
request.setSSEAlgorithm(ObjectMetadata.AES_256_SERVER_SIDE_ENCRYPTION);
request.setSSECustomerKey(new SSECustomerKey(key));
request.setSSEAwsKeyManagementParams(new SSEAwsKeyManagementParams(keyId));
amazonS3.putObject(request);
```
请注意,putObject()方法需要三个参数,即桶的名称,对象键和文件本身。通过将此代码与您自己的代码进行比较,您应该能够找到并解决问题。