Groovy/Java Google存储验证和请求

Groovy/Java是否有任何简单的代码示例可以进行身份验证并向Google Storage发出请求。我想使用此API将对象从一个bucket复制到另一个bucket：

以下是我尝试过的：

String sourceStorageID = "XXX"      
String destinationStorageID = "YYY"

String sourceFileName = "fileXXX"  
String destinationFileName = "fileYYY"

//https://www.googleapis.com/storage/v1/b/sourceBucket/o/sourceObject/copyTo/b/destinationBucket/o/destinationObject

String urlToCopyFile = "https://www.googleapis.com/storage/v1/b/" + sourceStorageID + "/o/" + sourceFileName + "/copyTo/b/" + destinationStorageID + "/o/" + destinationFileName

RestBuilder rest = new RestBuilder()
def exportFinishedJSON = rest.get(objectsListURL) {}?.json

我得到的回应是：

{"error":{"message":"Anonymous users does not have storage.objects.list   access to bucket XXX.","errors":[{"message":"Anonymous users does not have storage.objects.list access to bucket XXX","location":"Authorization","reason":"required","locationType":"header","domain":"global"}],"code":401}}

我知道我需要先进行身份验证，但如何进行？我阅读了大量的文档，但没有任何简单的Java实现示例。它真的是杂乱无章，信息太多了，我已经厌倦了阅读和搜索

我还使用ApiKey搜索了解决方案，在文档中，它说只需将其作为参数附加到URL，我尝试如下：

String urlToCopyFile = "https://www.googleapis.com/storage/v1/b/" + sourceStorageID + "/o/" + sourceFileName + "/copyTo/b/" + destinationStorageID + "/o/" + destinationFileName + "&key=" + myApiKey

但是没有成功

对于我的问题，有什么简单的解决方法吗

提前谢谢

编辑：还尝试了以下不同方法：

if (storageObject == null) {instance.authenticate();}
StorageObject newObject = new StorageObject()
newObject.setName(destinationObjectName)
Storage.Objects.Copy request = storageObject.objects().copy(sourceStorageID, sourceObjectName, destinationStorageID, destinationObjectName, newObject);
request.execute();

现在得到这个错误：

GoogleJsonResponseException occurred when processing request: [GET] /concierge/test/index
400 Bad Request
{
  "code" : 400,
  "errors" : [ {
    "domain" : "global",
    "message" : "Required",
    "reason" : "required"
  } ],
  "message" : "Required"
}. Stacktrace follows:
com.google.api.client.googleapis.json.GoogleJsonResponseException: 400 Bad Request
{
  "code" : 400,
  "errors" : [ {
    "domain" : "global",
    "message" : "Required",
    "reason" : "required"
  } ],
  "message" : "Required"
}

---

在groovy中，如果您使用它不是我问题的解决方案，那么它将很容易…在groovy中，如果您使用它不是我问题的解决方案，那么它将很容易。。。