Java 调用 Rest api 设置经典 Linux 虚拟机的实例启停

现象描述

用户可以通过 Rest API 设置经典 Linux 虚拟机实例的启停。在调用该 API 时需要通过 Azure Active Directory(下文简称 AAD) 获取 Token，但是因为中国 Azure 中通过 AAD 的 Application 获取到的 Token 无法操作经典 API，所以需要通过 Client ID 和管理员的用户名密码来获取 Token。

前提条件

创建一台 Linux 经典虚拟机。

示例代码

Java复制

importjava.io.DataOutputStream;importjava.io.File;importjava.io.FileInputStream;importjava.io.IOException;importjava.io.InputStream;importjava.net.URI;importjava.net.URISyntaxException;importjava.net.URL;importjava.security.KeyManagementException;importjava.security.*;importjava.security.KeyStoreException;importjava.security.NoSuchAlgorithmException;importjava.security.UnrecoverableKeyException;importjava.security.cert.X509Certificate;importjava.util.HashMap;importjava.util.Map;importjava.util.Scanner;importjava.util.concurrent.ExecutionException;importjava.util.concurrent.ExecutorService;importjava.util.concurrent.Executors;importjava.util.concurrent.Future;importjavax.net.ssl.*;importjavax.net.ssl.KeyManagerFactory;importjavax.net.ssl.SSLSocketFactory;importjavax.net.ssl.TrustManager;importorg.codehaus.jackson.map.ObjectMapper;//get Access token for Rest APIpublicvoidGetToken(){    ExecutorService service = Executors.newFixedThreadPool(1);    AuthenticationContext ac =newAuthenticationContext("https://login.chinacloudapi.cn/tenantID",true, service);    Future future = ac.acquireToken("https://management.core.chinacloudapi.cn/","1950a258-227b-4e31-a9cf-717495945fc2","username","password",null);    AuthenticationResult result = future.get();    String token = result.getAccessToken();    rest(token);}publicstaticvoidrest(String accessToken)throwsIOException{    URL url =newURL(String.format("https://management.core.chinacloudapi.cn/subID/services/hostedservices/{hostedservices}/deployments/{deployments}/roleinstances/{roleinstancesName}/Operations"));    HttpsURLConnection conn = (HttpsURLConnection)url.openConnection();    conn.setRequestProperty("x-ms-version","2013-06-01");    conn.setRequestProperty("Authorization","Bearer "+ accessToken);    conn.setRequestProperty("Content-Type","application/xml");//StartRoleString roleInstance =newString("\n"+"StartRoleOperation\n"+"");//ShutdownRoleString roleins =newString(""+"ShutdownRoleOperation"+"StoppedDeallocated"+"");byte[] data = roleInstance.getBytes();    conn.setDoOutput(true);    conn.setRequestMethod("POST");if(data !=null)    {        DataOutputStream requestStream =newDataOutputStream(conn.getOutputStream());        requestStream.write(data);        requestStream.flush();        requestStream.close();    }    String mess =  conn.getResponseMessage();intcode = conn.getResponseCode();    InputStream input = conn.getErrorStream();if(input ==null)    input = conn.getInputStream();    String response =null;try(Scanner scanner =newScanner(input)) {        scanner.useDelimiter("\\Z");        response = scanner.next();        scanner.close();        input.close();    }}

参考链接

Virtual Machines (classic) REST API - Start Role

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