我正在尝试使用azure docs网站（https://docs.microsoft.com/en-us/azure/java/java-sdk-azure-get-started

我有一个microsoft azure存储帐户设置，上面有一个文件的文件共享，我按照示例使用了正确的连接字符串。目前，我正在通过一条测试代码运行此代码，并使用一个主要方法来调用上载或下载方法，将其作为Java应用程序运行或调试，但出现错误：503服务不可用。

任何人都可以建议导致此问题的原因，或者如果我应该遵循其他/进一步/更好的说明集？

编辑：为响应下面的第一个答复，这是代码示例：

import java.io.IOException;
import java.net.URISyntaxException;
import java.security.InvalidKeyException;

import com.microsoft.azure.storage.*;
import com.microsoft.azure.storage.file.*;

/**
* Coded based on "Develop for Azure files with Java" tutorial from here:
* https://docs.microsoft.com/en-au/azure/storage/files/storage-java-how-to-use-file-storage
*/
public class myAzureExample {

    // Configure the connection-string with your values
    public static final String storageConnectionString =
        "DefaultEndpointsProtocol=http;" +
        "accountName=myaccountName;" +
        "accountKey=myaccountKey";

    public static void main(String[] args) throws URISyntaxException,StorageException,InvalidKeyException,IOException {
        downloadFile();
    }

    public static void downloadFile() throws InvalidKeyException,URISyntaxException,IOException {

        CloudFileShare share = getShare();

        //Get a reference to the root directory for the share.
        CloudFileDirectory rootDir = share.getRootDirectoryReference();

        //Get a reference to the directory that contains the file
        CloudFileDirectory sampleDir = rootDir.getDirectoryReference("sampledir");

        //Get a reference to the file you want to download
        CloudFile file = sampleDir.getFileReference("SampleFile.txt");

        //Write the contents of the file to the console.
        System.out.println(file.downloadText());
    }

    private static CloudFileShare getShare() throws URISyntaxException,StorageException {
        CloudStorageaccount storageaccount = CloudStorageaccount.parse(storageConnectionString);

        CloudFileclient fileclient = storageaccount.createcloudFileclient();

        // Get a reference to the file share
        CloudFileShare share = fileclient.getShareReference("portalshare");
        return share;
    }
}