本教程详细介绍如何使用Alibaba Cloud SDK for Java克隆一个SLB实例。

前提条件

  • 使用Alibaba Cloud SDK for Java,您需要一个阿里云账号和访问密钥(AccessKey)。 请在阿里云控制台中的AccessKey管理页面上创建和查看您的AccessKey。
  • 确保您已经安装了Alibaba Cloud SDK for Java,准确的SDK版本号,请参见阿里云开发工具包(SDK)
        <dependencies>         <!-- https://mvnrepository.com/artifact/com.aliyun/aliyun-java-sdk-core --&gt;         <dependency&gt;             <groupId>com.aliyun</groupId>             <artifactId>aliyun-java-sdk-core</artifactId>             <version>4.4.3</version>         </dependency>         <!-- https://mvnrepository.com/artifact/com.aliyun/aliyun-java-sdk-slb -->         <dependency>             <groupId>com.aliyun</groupId>             <artifactId>aliyun-java-sdk-slb</artifactId>             <version>3.2.13</version>         </dependency>     </dependencies>

代码示例

本文操作示例主要以代码形式体现,具体代码如下:

import com.aliyuncs.DefaultAcsClient; import com.aliyuncs.IAcsClient; import com.aliyuncs.exceptions.ClientException; import com.aliyuncs.profile.DefaultProfile; import com.aliyuncs.slb.model.v20140515.*; import com.google.gson.Gson;   public class ConfigrationCloneDemo {      // 定义允许最大重试次数为3     private static Integer MAX_TRY_TIME = 3;      /**      * 创建负载均衡实例      *      * @param "CreateLoadBalancerRequest"      * @param "IAcsClient"      * @return "CreateLoadBalancerResponse"      */     private CreateLoadBalancerResponse createLoadBalancer(CreateLoadBalancerRequest request, IAcsClient client) {          // 初始化返回对象         CreateLoadBalancerResponse response = null;         try {             // 调用SDK发送请求             response = client.getAcsResponse(request);         } catch (ClientException e) {             e.printStackTrace();             // 发生调用错误,抛出运行时异常             throw new RuntimeException();         }         return response;     }      /**      * 添加后端服务器      *      * @param "AddBackendServersRequest"      * @param "IAcsClient"      * @return "AddBackendServersResponse"      */     private AddBackendServersResponse addBackendServers(AddBackendServersRequest request, IAcsClient client) {         // 定义一个计数器         Integer counter = 0;         // 声明方法返回参数         AddBackendServersResponse acsResponse = null;         // 如果当前计数counter小于最大允许次数,重复操作         while (counter < MAX_TRY_TIME) {             try {                 // 调用SDK发送请求                 acsResponse = client.getAcsResponse(request);                 return acsResponse;             } catch (ClientException e) {                 e.printStackTrace();             }             // 发生调用异常,计数器自加1,进行下一次尝试调用             counter++;         }         throw new RuntimeException();     }      /**      * 创建tcp监听      *      * @param "CreateLoadBalancerTCPListenerRequest"      * @param "IAcsClient"      * @return "CreateLoadBalancerTCPListenerResponse"      */     private CreateLoadBalancerTCPListenerResponse createTCPListener(CreateLoadBalancerTCPListenerRequest request, IAcsClient client) {         // 定义一个计数器         Integer counter = 0;         // 声明方法返回参数         CreateLoadBalancerTCPListenerResponse response = null;         // 如果当前计数counter小于最大允许次数,重复操作         while (counter < MAX_TRY_TIME) {             try {                 // 调用SDK发送请求                 response = client.getAcsResponse(request);                 return response;             } catch (ClientException e) {                 e.printStackTrace();             }             // 发生调用异常,计数器自加1,进行下一次尝试调用             counter++;         }         // 在尝试三次后抛出运行时异常         throw new RuntimeException();     }      /**      * 查询指定负载均衡实例的详细信息      *      * @param "DescribeLoadBalancerAttributeRequest"      * @param "IAcsClient"      * @return "DescribeLoadBalancerAttributeResponse"      */     private DescribeLoadBalancerAttributeResponse describeLoadBalancerAttribute(DescribeLoadBalancerAttributeRequest request, IAcsClient client) {         // 定义一个计数器         Integer counter = 0;         // 声明方法返回参数         DescribeLoadBalancerAttributeResponse response = null;         // 如果当前计数counter小于最大允许次数,重复操作         while (counter < MAX_TRY_TIME) {             try {                 // 调用SDK发送请求                 response = client.getAcsResponse(request);                 return response;             } catch (ClientException e) {                 e.printStackTrace();             }             // 发生调用异常,计数器自加1,进行下一次尝试调用             counter++;         }         // 在尝试三次后抛出运行时异常         throw new RuntimeException();     }      /**      * 删除slb实例      *      * @param "DeleteLoadBalancerRequest"      * @param "IAcsClient"      * @return "DeleteLoadBalancerResponse"      */     private DeleteLoadBalancerResponse deleteLoadBalancer(DeleteLoadBalancerRequest request, IAcsClient client) {         // 声明方法返回参数         DeleteLoadBalancerResponse response = null;         try {             // 调用SDK发送请求             response = client.getAcsResponse(request);         } catch (ClientException e) {             e.printStackTrace();             // 发生调用错误,抛出运行时异常             throw new RuntimeException();         }         return response;     }      public static void main(String[] args) {         // 设置鉴权参数,初始化客户端         DefaultProfile profile = DefaultProfile.getProfile(                 "<your-region-id>",// 地域ID                 "<your-access-key-id>",// 您的AccessKey ID                 "<your-access-key-secret>");// 您的AccessKey Secret         IAcsClient client = new DefaultAcsClient(profile);          ConfigrationCloneDemo configrationCloneDemo = new ConfigrationCloneDemo();          // 创建slb实例         // 初始化创建SLB实例方法入参对象         CreateLoadBalancerRequest createLoadBalancerRequest = new CreateLoadBalancerRequest();         // 设置新建SLB实例的主可用区为cn-zhangjiakou-a         createLoadBalancerRequest.setMasterZoneId("cn-zhangjiakou-a");         // 设置新建SLB实例的备可用区为cn-zhangjiakou-b         createLoadBalancerRequest.setSlaveZoneId("cn-zhangjiakou-b");         // 设置新建SLB实例的名称为SLB1         createLoadBalancerRequest.setLoadBalancerName("SLB1");         // 设置新建SLB实例的计费类型为按量计费         createLoadBalancerRequest.setPayType("PayOnDemand");         // 设置新建SLB实例的规格为slb.s1.small         createLoadBalancerRequest.setLoadBalancerSpec("slb.s1.small");         // 调用创建slb实例方法         CreateLoadBalancerResponse createLoadBalancerResponse = configrationCloneDemo.createLoadBalancer(createLoadBalancerRequest, client);         System.out.println("-------------------------------createLoadBalancer-------------------------------");         System.out.println(new Gson().toJson(createLoadBalancerResponse));          String loadBalancerId = createLoadBalancerResponse.getLoadBalancerId();           // 添加后端服务器         // 初始化addBackendServers方法入参对象         AddBackendServersRequest addBackendServersRequest = new AddBackendServersRequest();         // 设置添加到默认服务器组的ECS的实例ID和权重         List<Map<String,String>> backendServers = new ArrayList<>();         Map<String,String> server1 = new HashMap<>();         server1.put("ServerId","i-8vb3kvxtwrx50lqsxxxx");         server1.put("Weight","100");         backendServers.add(server1);         Map<String,String> server2 = new HashMap<>();         server2.put("ServerId","i-8vb7sribf5t0g0qkxxxx");         server2.put("Weight","100");         backendServers.add(server2);         addBackendServersRequest.setLoadBalancerId(loadBalancerId);         addBackendServersRequest.setBackendServers(new Gson().toJson(backendServers));         // 添加后端服务器         AddBackendServersResponse addBackendServersResponse = configrationCloneDemo.addBackendServers(addBackendServersRequest, client);         System.out.println("-------------------------------addBackendServers-------------------------------");         System.out.println(new Gson().toJson(addBackendServersResponse));          // 创建tcp监听         // 初始化createTCPListener方法入参对象         CreateLoadBalancerTCPListenerRequest createLoadBalancerTCPListenerRequest = new CreateLoadBalancerTCPListenerRequest();         // 设置负载均衡实例ID         createLoadBalancerTCPListenerRequest.setLoadBalancerId(loadBalancerId);         // 设置负载均衡实例前端使用的端口         createLoadBalancerTCPListenerRequest.setListenerPort(80);         // 设置负载均衡实例后端使用的端口         createLoadBalancerTCPListenerRequest.setBackendServerPort(80);         // 设置监听的健康检查协议         createLoadBalancerTCPListenerRequest.setHealthCheckType("tcp");         // 设置监听的带宽峰值,-1表示不限制带宽峰值         createLoadBalancerTCPListenerRequest.setBandwidth(-1);         // 创建tcp监听         CreateLoadBalancerTCPListenerResponse createLoadBalancerTCPListenerResponse = configrationCloneDemo.createTCPListener(createLoadBalancerTCPListenerRequest, client);         System.out.println("-------------------------------createTCPListener-------------------------------");         System.out.println(new Gson().toJson(createLoadBalancerTCPListenerResponse));          // 查询slb实例         // 初始化describeLoadBalancerAttribute方法入参对象         DescribeLoadBalancerAttributeRequest describeLoadBalancerAttributeRequest = new DescribeLoadBalancerAttributeRequest();         // 设置负载均衡实例ID         describeLoadBalancerAttributeRequest.setLoadBalancerId(loadBalancerId);         // 调用查询slb实例方法         DescribeLoadBalancerAttributeResponse describeLoadBalancerAttributeResponse = configrationCloneDemo.describeLoadBalancerAttribute(describeLoadBalancerAttributeRequest, client);         System.out.println("-------------------------------describeLoadBalancerAttribute-------------------------------");         System.out.println(new Gson().toJson(describeLoadBalancerAttributeResponse));          // 获取查询到的实例详细信息         String masterZoneId = describeLoadBalancerAttributeResponse.getMasterZoneId();         String slaveZoneId = describeLoadBalancerAttributeResponse.getSlaveZoneId();         String payType = describeLoadBalancerAttributeResponse.getPayType();         String resourceGroupId = describeLoadBalancerAttributeResponse.getResourceGroupId();         String addressIPVersion = describeLoadBalancerAttributeResponse.getAddressIPVersion();         String addressType = describeLoadBalancerAttributeResponse.getAddressType();         String loadBalancerName = describeLoadBalancerAttributeResponse.getLoadBalancerName();         String loadBalancerSpec = describeLoadBalancerAttributeResponse.getLoadBalancerSpec();          // 克隆实例         // 初始化创建SLB实例方法入参对象         CreateLoadBalancerRequest createLoadBalancerRequestClone = new CreateLoadBalancerRequest();         // 设置新建SLB实例的主可用区为cn-zhangjiakou-a         createLoadBalancerRequestClone.setMasterZoneId(masterZoneId);         // 设置新建SLB实例的备可用区为cn-zhangjiakou-b         createLoadBalancerRequestClone.setSlaveZoneId(slaveZoneId);         // 设置新建SLB实例的名称为SLB1         createLoadBalancerRequestClone.setLoadBalancerName(loadBalancerName);         // 设置新建SLB实例的计费类型为按量计费         createLoadBalancerRequestClone.setPayType(payType);         // 设置新建SLB实例的规格为slb.s1.small         createLoadBalancerRequestClone.setLoadBalancerSpec(loadBalancerSpec);         // 设置资源组id         createLoadBalancerRequestClone.setResourceGroupId(resourceGroupId);         // 设置网络地址版本         createLoadBalancerRequestClone.setAddressIPVersion(addressIPVersion);         // 设置网络类型         createLoadBalancerRequestClone.setAddressType(addressType);         // 调用创建slb实例方法         CreateLoadBalancerResponse createLoadBalancerResponseClone = configrationCloneDemo.createLoadBalancer(createLoadBalancerRequestClone, client);         System.out.println("-------------------------------createLoadBalancer-------------------------------");         System.out.println(new Gson().toJson(createLoadBalancerResponseClone));          // 获取克隆实例的ID         String loadBalancerIdClone = createLoadBalancerResponseClone.getLoadBalancerId();          // 查询克隆出来的信息         DescribeLoadBalancerAttributeRequest describeLoadBalancerAttributeRequestClone = new DescribeLoadBalancerAttributeRequest();         describeLoadBalancerAttributeRequestClone.setLoadBalancerId(loadBalancerIdClone);         DescribeLoadBalancerAttributeResponse describeLoadBalancerAttributeResponseClone = configrationCloneDemo.describeLoadBalancerAttribute(describeLoadBalancerAttributeRequestClone, client);         System.out.println("-------------------------------describeLoadBalancerAttribute-------------------------------");         System.out.println(new Gson().toJson(describeLoadBalancerAttributeResponseClone));          // 删除第一个实例         DeleteLoadBalancerRequest deleteLoadBalancerRequest = new DeleteLoadBalancerRequest();         deleteLoadBalancerRequest.setLoadBalancerId(loadBalancerId);         DeleteLoadBalancerResponse deleteLoadBalancerResponse = configrationCloneDemo.deleteLoadBalancer(deleteLoadBalancerRequest, client);         System.out.println("-------------------------------deleteLoadBalancer-------------------------------");         System.out.println(new Gson().toJson(deleteLoadBalancerResponse));          // 删除克隆实例         DeleteLoadBalancerRequest deleteLoadBalancerRequestClone = new DeleteLoadBalancerRequest();         deleteLoadBalancerRequestClone.setLoadBalancerId(loadBalancerIdClone);         DeleteLoadBalancerResponse deleteLoadBalancerResponseClone = configrationCloneDemo.deleteLoadBalancer(deleteLoadBalancerRequestClone, client);         System.out.println("-------------------------------deleteLoadBalancer-------------------------------");         System.out.println(new Gson().toJson(deleteLoadBalancerResponseClone));      } }

运行结果

正确的运行结果类似如下:

-------------------------------createLoadBalancer------------------------------- {     "requestId": "20ECBAE0-A670-47EE-AF0A-B7A1B7ED4B68",     "loadBalancerId": "lb-8vb6ntaxxxxxxxzfxe7d",     "resourceGroupId": "rg-acfxxxxxxxh6aiy",     "address": "39.xx.xx232",     "loadBalancerName": "SLB2",     "vpcId": "",     "vSwitchId": "",     "networkType": "classic",     "addressIPVersion": "ipv4" } -------------------------------addBackendServers------------------------------- {     "requestId": "B943BBBC-ACFD-483C-8B9A-9B6378578C0E",     "loadBalancerId": "lb-8vb6ntxxxxxxx6zfxe7d",     "backendServers": [         {             "serverId": "i-8vb3kvxxxxxxxxqscsk0",             "weight": "100",             "type": "ecs"         },         {             "serverId": "i-8vb7srixxxxxxxxkpn4c",             "weight": "100",             "type": "ecs"         }     ] } -------------------------------createTCPListener------------------------------- {     "requestId": "47C51864-80DA-4C0F-8CA7-1D0F3A0F1CE5" } -------------------------------describeLoadBalancerAttribute------------------------------- {     "requestId": "EDDE6750-55BA-40DA-B23A-13902C8B5841",     "loadBalancerId": "lb-8vb6ntxxxxxxx6zfxe7d",     "resourceGroupId": "rg-acfxxxxxxxx6aiy",     "loadBalancerName": "SLB2",     "loadBalancerStatus": "inactive",     "regionId": "cn-zhangjiakou",     "regionIdAlias": "cn-zhangjiakou",     "address": "39.xx.xx.232",     "addressType": "internet",     "vpcId": "",     "vSwitchId": "",     "networkType": "classic",     "internetChargeType": "paybytraffic",     "bandwidth": 5120,     "loadBalancerSpec": "slb.s1.small",     "createTime": "2019-09-25T08:55:44Z",     "createTimeStamp": 1569401744000,     "endTime": "2999-09-08T16:00:00Z",     "endTimeStamp": 32493801600000,     "payType": "PayOnDemand",     "masterZoneId": "cn-zhangjiakou-a",     "slaveZoneId": "cn-zhangjiakou-b",     "addressIPVersion": "ipv4",     "hasReservedInfo": "false",     "deleteProtection": "off",     "listenerPortsAndProtocal": [         {             "listenerPort": 80,             "listenerProtocal": "tcp"         }     ],     "listenerPortsAndProtocol": [         {             "listenerPort": 80,             "listenerProtocol": "tcp"         }     ],     "backendServers": [         {             "serverId": "i-8vb3kvxxxxxxxxxscsk0",             "weight": 100,             "type": "ecs"         },         {             "serverId": "i-8vb7srixxxxxxxxkpn4c",             "weight": 100,             "type": "ecs"         }     ],     "listenerPorts": [         "80"     ] } -------------------------------createLoadBalancer------------------------------- {     "requestId": "D4261166-45D7-4350-BB7D-C9D7DE9B10BC",     "loadBalancerId": "lb-8vb04iq5xxxxxxxx1kwa0",     "resourceGroupId": "rg-acfxxxxxxxx6aiy",     "address": "47.xx.xx.95",     "loadBalancerName": "SLB2",     "vpcId": "",     "vSwitchId": "",     "networkType": "classic",     "addressIPVersion": "ipv4" } -------------------------------describeLoadBalancerAttribute------------------------------- {     "requestId": "380690DC-83AE-424E-BACF-283EA844B47B",     "loadBalancerId": "lb-8vb04iq5xxxxxxxx1kwa0",     "resourceGroupId": "rg-acfxxxxxxxx6aiy",     "loadBalancerName": "SLB2",     "loadBalancerStatus": "active",     "regionId": "cn-zhangjiakou",     "regionIdAlias": "cn-zhangjiakou",     "address": "47.xx.xx.95",     "addressType": "internet",     "vpcId": "",     "vSwitchId": "",     "networkType": "classic",     "internetChargeType": "paybytraffic",     "bandwidth": 5120,     "loadBalancerSpec": "slb.s1.small",     "createTime": "2019-09-25T08:55:47Z",     "createTimeStamp": 1569401747000,     "endTime": "2999-09-08T16:00:00Z",     "endTimeStamp": 32493801600000,     "payType": "PayOnDemand",     "masterZoneId": "cn-zhangjiakou-a",     "slaveZoneId": "cn-zhangjiakou-b",     "addressIPVersion": "ipv4",     "hasReservedInfo": "false",     "deleteProtection": "off",     "listenerPortsAndProtocal": [],     "listenerPortsAndProtocol": [],     "backendServers": [],     "listenerPorts": [] } -------------------------------deleteLoadBalancer------------------------------- {     "requestId": "AD1FB7C6-2AA9-4624-A7F9-FEC2EEFFC776" } -------------------------------deleteLoadBalancer------------------------------- {     "requestId": "41EBF184-991F-4DF2-9FD4-B99DE5900B82" }