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

import java.io.DataOutputStream;import java.io.File;import java.io.FileInputStream;import java.io.IOException;import java.io.InputStream;import java.net.URI;import java.net.URISyntaxException;import java.net.URL;import java.security.KeyManagementException;import java.security.*;import java.security.KeyStoreException;import java.security.NoSuchAlgorithmException;import java.security.UnrecoverableKeyException;import java.security.cert.X509Certificate;import java.util.HashMap;import java.util.Map;import java.util.Scanner;import java.util.concurrent.ExecutionException;import java.util.concurrent.ExecutorService;import java.util.concurrent.Executors;import java.util.concurrent.Future;import javax.net.ssl.*;import javax.net.ssl.KeyManagerFactory;import javax.net.ssl.SSLSocketFactory;import javax.net.ssl.TrustManager;import org.codehaus.jackson.map.ObjectMapper;//get Access token for Rest APIpublic void GetToken() {     ExecutorService service = Executors.newFixedThreadPool(1);    AuthenticationContext ac = new AuthenticationContext("https://login.chinacloudapi.cn/tenantID", true, service);     Future<AuthenticationResult> 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);}public static void rest(String accessToken) throws IOException{    URL url = new URL(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");    //StartRole    String roleInstance = new String("<StartRoleOperation xmlns=\"http://schemas.microsoft.com/windowsazure\" xmlns:i=\"http://www.w3.org/2001/XMLSchema-instance\">\n" + "<OperationType>StartRoleOperation</OperationType>\n" +                               "</StartRoleOperation>");    //ShutdownRole                 String roleins = new String( "<ShutdownRoleOperation xmlns=\"http://schemas.microsoft.com/windowsazure\" xmlns:i=\"http://www.w3.org/2001/XMLSchema-instance\">" +"<OperationType>ShutdownRoleOperation</OperationType>" +                                           "<PostShutdownAction>StoppedDeallocated</PostShutdownAction>" +                                               "</ShutdownRoleOperation>");    byte[] data = roleInstance.getBytes();    conn.setDoOutput(true);    conn.setRequestMethod("POST");    if (data != null)    {        DataOutputStream requestStream = new DataOutputStream(conn.getOutputStream());        requestStream.write(data);        requestStream.flush();        requestStream.close();    }    String mess =  conn.getResponseMessage();    int code = conn.getResponseCode();     InputStream input = conn.getErrorStream();    if (input == null)    input = conn.getInputStream();    String response = null;    try (Scanner scanner = new Scanner(input)) {        scanner.useDelimiter("\\Z");        response = scanner.next();        scanner.close();        input.close();    }                           立即访问http://market.azure.cn}

参考链接

Virtual Machines (classic) REST API - Start Role