阿里云资源编排服务 Java SDK使用入门
安装依赖
添加Maven库
<repositories>
<repository>
<id>sonatype-nexus-staging</id>
<name>Sonatype Nexus Staging</name>
<url>https://oss.sonatype.org/service/local/staging/deploy/maven2/</url>
<releases>
<enabled>true</enabled>
</releases>
<snapshots>
<enabled>true</enabled>
</snapshots>
</repository>
</repositories>
在项目中包含依赖
创建一个新的maven项目，或者在您已有的项目中通过maven引入依赖：
<dependency>
<groupId>com.aliyun</groupId>
<artifactId>aliyun-java-sdk-core</artifactId>
<version>3.2.4</version>
</dependency>
<dependency>
<groupId>com.aliyun</groupId>
<artifactId>aliyun-java-sdk-ros</artifactId>
<version>2.2.6</version>
</dependency>
ROS JAVA SDK 与服务器通过 HTTP 的方式交互，HTTP Request 和 Response 的内容为 json 格式的字符串，请在代码中引入合适的 json 包，如：
import org.json.JSONObject;
示例中使用的版本为：
<dependency>
<groupId>org.json</groupId>
<artifactId>json</artifactId>
<version>20170516</version>
</dependency>
初始化客户端
在您准备调用SDK的java类中引入相关的包：
import com.aliyuncs.DefaultAcsClient;
import com.aliyuncs.IAcsClient;
import com.aliyuncs.exceptions.ClientException;
import com.aliyuncs.exceptions.ServerException;
配置您的客户端对象：
private static String REGION_ID = "YOUR REGION";
private static String ACCESS_ID = "YOUR ID";
private static String ACCESS_KEY = "YOUR KEY";
IClientProfile profile = DefaultProfile.getProfile(REGION_ID, ACCESS_ID, ACCESS_KEY);
IAcsClient client = new DefaultAcsClient(profile);
其中AccessKeyId和AccessKeySecure是用户访问阿里云Open API时的认证信息，可以登陆阿里云官方站后获得。第三个参数是用户访问的资源所在的默认region-id，参照区域列表。
使用SDK
基本流程
根据应用场景选择要调用的方法，申明其请求对象
CreateStacksRequest describe = new CreateStacksRequest();
按照参数设置要求设置请求的参数，具体的参数设置要求参见 API文档
// header
describe.putHeaderParameter("x-acs-region-id", "cn-beijing");
// url, sdk request会有对应的方法
describe.setName("Name")
// Content
describe.setContent(content.getBytes("utf-8"), "utf-8", FormatType.JSON);
获取结果，为json字符串，之后您可以根据您的需要进行处理
HttpResponse response = client.doAction(describe);
String stringContent = ParseContent(response);
System.out.println(stringContent);
这里我们列举四个示例，示例中用到的其余函数参见附件中的代码：
List Region
/*
* List regions
*/
public static void ListRegions(IAcsClient client) {
DescribeRegionsRequest describe = new DescribeRegionsRequest();
try {
HttpResponse response = client.doAction(describe);
String stringContent = ParseContent(response);
System.out.println(stringContent);
}catch (ServerException e) {
e.printStackTrace();
}
catch (ClientException e) {
e.printStackTrace();
}
}
示例输出：
{"Regions": [{"LocalName": "\u534e\u5317 1", "RegionId": "cn-qingdao"}, {"LocalName": "\u534e\u5317 2", "RegionId": "cn-beijing"}, {"LocalName": "\u534e\u5317 3", "RegionId": "cn-zhangjiakou"}, {"LocalName": "\u534e\u4e1c 1", "RegionId": "cn-hangzhou"}, {"LocalName": "\u534e\u4e1c 2", "RegionId": "cn-shanghai"}, {"LocalName": "\u534e\u5357 1", "RegionId": "cn-shenzhen"}, {"LocalName": "\u9999\u6e2f", "RegionId": "cn-hongkong"}, {"LocalName": "\u4e9a\u592a\u4e1c\u5317 1 (\u4e1c\u4eac)", "RegionId": "ap-northeast-1"}, {"LocalName": "\u4e9a\u592a\u4e1c\u5357 1 (\u65b0\u52a0\u5761)", "RegionId": "ap-southeast-1"}, {"LocalName": "\u4e9a\u592a\u4e1c\u5357 2 (\u6089\u5c3c)", "RegionId": "ap-southeast-2"}, {"LocalName": "\u7f8e\u56fd\u4e1c\u90e8 1 (\u5f17\u5409\u5c3c\u4e9a)", "RegionId": "us-east-1"}, {"LocalName": "\u7f8e\u56fd\u897f\u90e8 1 (\u7845\u8c37)", "RegionId": "us-west-1"}, {"LocalName": "\u4e2d\u4e1c\u4e1c\u90e8 1 (\u8fea\u62dc)", "RegionId": "me-east-1"}, {"LocalName": "\u6b27\u6d32\u4e2d\u90e8 1 (\u6cd5\u5170\u514b\u798f)", "RegionId": "eu-central-1"}]}
List Stacks
/*
* List stacks
*/
public static void ListStacks(IAcsClient client) {
DescribeStacksRequest describe = new DescribeStacksRequest();
// example for set parameters in header
describe.putHeaderParameter("x-acs-region-id", "cn-beijing");
// example for set parameters in url
describe.setName("liyi_test_170615"); // if not set, list all stacks
try {
HttpResponse response = client.doAction(describe);
String stringContent = ParseContent(response);
System.out.println(stringContent);
}catch (ServerException e) {
e.printStackTrace();
}
catch (ClientException e) {
e.printStackTrace();
}
}
Validate Template
/*
* Validate a template
* Succeed: return template
* Fail: return error infomation
*/
public static void ValidateTemplate(IAcsClient client) {
ValidateTemplateRequest describe = new ValidateTemplateRequest();
// example for set parameters in content
String content = "{\"Template\":" + readToString("C:\\Users\\quming.ly\\Desktop\\nodejs.json") + "}";
try {
describe.setContent(content.getBytes("utf-8"), "utf-8", FormatType.JSON);
} catch (UnsupportedEncodingException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
try {
HttpResponse response = client.doAction(describe);
String stringContent = ParseContent(response);
System.out.println(stringContent);
}catch (ServerException e) {
e.printStackTrace();
}
catch (ClientException e) {
e.printStackTrace();
}
}
Create Stack
/*
* Create a template
* Succeed: return stack name and id
* Fail: return error infomation
*/
public static void CreateStack(IAcsClient client) {
CreateStacksRequest describe = new CreateStacksRequest();
// example for set parameters in header
describe.putHeaderParameter("x-acs-region-id", "cn-beijing");
// example for set parameters in content
JSONObject object = new JSONObject();
object.put("TimeoutMins", 60);
object.put("Name", "JAVA_SDK_DEMO");
object.put("Template",readToString("C:\\Users\\quming.ly\\Desktop\\template.json"));
// The follow parameters are depend on your template
JSONObject parameters = new JSONObject();
parameters.put("DBUser", "Demo");
parameters.put("DBPassword", "Demo123456");
parameters.put("DBRootPassword", "Demo123456");
parameters.put("InstancePassword", "Demo123456");
object.put("Parameters", parameters);
try {
describe.setContent(object.toString().getBytes("utf-8"), "utf-8", FormatType.JSON);
} catch (UnsupportedEncodingException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
try {
HttpResponse response = client.doAction(describe);
String stringContent = ParseContent(response);
System.out.println(stringContent);
}catch (ServerException e) {
e.printStackTrace();
}
catch (ClientException e) {
e.printStackTrace();
}
}
完整的工程代码见附件。
相关资源：敏捷开发V1.0.pptx
