Step By Step
1、API请求参数解释说明
2、pom.xml
<dependencies>
<!-- https://mvnrepository.com/artifact/com.aliyun/aliyun-java-sdk-onsmqtt -->
<dependency>
<groupId>com.aliyun</groupId>
<artifactId>aliyun-java-sdk-onsmqtt</artifactId>
<version>1.0.4</version>
</dependency>
<!-- https://mvnrepository.com/artifact/com.aliyun/aliyun-java-sdk-core -->
<dependency>
<groupId>com.aliyun</groupId>
<artifactId>aliyun-java-sdk-core</artifactId>
<version>4.5.6</version>
</dependency>
</dependencies>3、Code Sample
import com.aliyuncs.DefaultAcsClient;
import com.aliyuncs.IAcsClient;
import com.aliyuncs.exceptions.ClientException;
import com.aliyuncs.exceptions.ServerException;
import com.aliyuncs.onsmqtt.model.v20200420.ApplyTokenRequest;
import com.aliyuncs.onsmqtt.model.v20200420.ApplyTokenResponse;
import com.aliyuncs.profile.DefaultProfile;
import com.google.gson.Gson;
public class ApplyTokenDemo {
public static void main(String[] args) {
// https://developer.aliyun.com/article/693979?spm=a2c6h.13262185.0.0.1a7f5eb5mZCprP
DefaultProfile profile = DefaultProfile.getProfile("cn-hangzhou", "LTAIOZZg********", "v7CjUJCMk7j9aK****************");
IAcsClient client = new DefaultAcsClient(profile);
// https://help.aliyun.com/document_detail/163049.html?spm=a2c4g.11186623.6.608.12d642cal4i2Yn
ApplyTokenRequest request = new ApplyTokenRequest();
request.setResources("topicdemo/#");
request.setInstanceId("post-cn-0pp13******");
request.setExpireTime(System.currentTimeMillis() + 1000*60*10); // 过期时间为当前时间 + 10分钟
request.setActions("R,W");
try {
ApplyTokenResponse response = client.getAcsResponse(request);
System.out.println(new Gson().toJson(response));
} catch (ServerException e) {
e.printStackTrace();
} catch (ClientException e) {
System.out.println("ErrCode:" + e.getErrCode());
System.out.println("ErrMsg:" + e.getErrMsg());
System.out.println("RequestId:" + e.getRequestId());
}
}
}
4、The Result
{"requestId":"5E501111-AA2E-4AA8-9330-369CF14B1111","token":"LzMT+XLFl5s/YWJ1111z4t/Lq5HC1iGU1P28HAMaxYzmBSHQsWXgdISJ1ZJ+2cxa6OGEoSNYNUwKHx3Gb0+RQ/MkFF0ukQBAbJGYgJWUr5piesdvDY0i8Q0UdBDB9AhlRN7WXe/fMmbvooOIjF1CZZ91111CT40m4bkmcftVUBP5SM+VepMKCyQgoJWL8b3AwS/EK73BBYd/bO6tnAwvMaNL3uAnaqTRIfIBM10mgCpKQvYrkhktWtnCUFsi2QDWYIMnRJvEpgay7eFCMO4HabQ8y8ysZbQ1UI4BY0leKhBc2NXexKqBNE1VjqqJk/klr2oiya12mL8tTlXvs9rXpzOQGdXskhA6"}
