如何通过Java SDK描述Collection
<p>本文介绍如何通过Java SDK获取已创建的Collection的状态和Schema信息。</p><h2 id="前提条件">前提条件</h2>
<ul>
<li>已创建Cluster</li>
<li>已获得API-KEY</li>
<li>已安装最新版SDK</li>
</ul>
<h2 id="接口定义"><strong>接口定义</strong></h2>
<p>Java</p>
<pre><code class="language-java">// class DashVectorClient
public Response<CollectionMeta> describe(String name);
</code></pre>
<h2 id="使用示例"><strong>使用示例</strong></h2>
<p><strong>说明</strong></p>
<ol>
<li>
<p>需要使用您的api-key替换示例中的YOUR_API_KEY、您的Cluster Endpoint替换示例中的YOUR_CLUSTER_ENDPOINT，代码才能正常运行。</p>
</li>
<li>
<p>本示例需要参考新建Collection-使用示例提前创建好名称为<code>quickstart</code>的Collection。</p>
</li>
</ol>
<p>Java</p>
<pre><code class="language-java">import com.aliyun.dashvector.DashVectorClient;
import com.aliyun.dashvector.common.DashVectorException;
import com.aliyun.dashvector.models.CollectionMeta;
import com.aliyun.dashvector.models.responses.Response;
public class Main {
public static void main(String[] args) throws DashVectorException {
DashVectorClient client = new DashVectorClient("YOUR_API_KEY", "YOUR_CLUSTER_ENDPOINT");
Response<CollectionMeta> response = client.describe("quickstart");
System.out.println(response);
// example output:
// {
// "code":0,
// "message":"",
// "requestId":"cb468965-d86b-405a-87a4-a596e61c1240",
// "output":{
// "name":"quickstart",
// "dimension":4,
// "dataType":"FLOAT",
// "metric":"dotproduct",
// "status":"SERVING",
// "fieldsSchema":{
// "name":"STRING",
// "weight":"FLOAT",
// "age":"INT",
// "id":"LONG"
// },
// "partitionStatus":{
// "default":"SERVING"
// }
// }
// }
}
}
</code></pre><br><br>
来源：https://www.cnblogs.com/DashVector/p/19537133
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