# 查询截图任务
#### 说明
- 查询截图任务，支持根据任务ID查询、任务状态、时间段、分页查询和复合查询。
- 在查询到的结果集中，如果不提供页码数page和显示条数size并且数据大于10条时，会默认显示10条数据并进行分页处理。
 
#### 根据任务ID查询
```
//根据任务ID查询，最多支持10个任务ID
ListThumbnailsTaskRequest req = new ListThumbnailsTaskRequest().withTaskId(Collections.singletonList("2210744"));
// 发送查询截图任务请求给媒体处理服务
ListThumbnailsTaskResponse rsp = initMpcClient().listThumbnailsTask(req);
// 返回消息
System.out.println("rsp=" + JsonUtils.toJSON(rsp));
```
#### 分页查询
```
//分页查询
ListThumbnailsTaskRequest req = new ListThumbnailsTaskRequest().withPage(1).withSize(4);
//发送查询截图任务请求给媒体处理服务
ListThumbnailsTaskResponse rsp = initMpcClient().listThumbnailsTask(req);
//返回消息
System.out.println("rsp=" + JsonUtils.toJSON(rsp));
```
#### 根据时间段查询
```
ListThumbnailsTaskRequest req = new ListThumbnailsTaskRequest().withStartTime("20201220131400").withEndTime("20201220131400");
// 发送查询截图任务请求给媒体处理服务
ListThumbnailsTaskResponse rsp = initMpcClient().listThumbnailsTask(req);
// 返回消息
System.out.println("rsp=" + JsonUtils.toJSON(rsp));
```
#### 根据任务状态查询
```
// 根据任务的状态查询
ListThumbnailsTaskRequest req = new ListThumbnailsTaskRequest().withStatus(ListThumbnailsTaskRequest.StatusEnum.FAILED);
// 发送查询截图任务请求给媒体处理服务
ListThumbnailsTaskResponse rsp = initMpcClient().listThumbnailsTask(req);
// 返回消息
System.out.println("rsp=" + JsonUtils.toJSON(rsp));
```
#### 复合查询
```
//复合查询
ListThumbnailsTaskRequest req = new ListThumbnailsTaskRequest().withPage(1).withSize(4)
        .withStartTime("20201220131400")
        .withEndTime("20201220131400")
        .withStatus(ListThumbnailsTaskRequest.StatusEnum.FAILED);
```
#### 完整代码
```
import com.huaweicloud.sdk.core.auth.BasicCredentials;
import com.huaweicloud.sdk.core.exception.ClientRequestException;
import com.huaweicloud.sdk.core.exception.ConnectionException;
import com.huaweicloud.sdk.core.exception.RequestTimeoutException;
import com.huaweicloud.sdk.core.http.HttpConfig;
import com.huaweicloud.sdk.core.utils.JsonUtils;
import com.huaweicloud.sdk.mpc.v1.MpcClient;
import com.huaweicloud.sdk.mpc.v1.model.ListThumbnailsTaskRequest;
import com.huaweicloud.sdk.mpc.v1.model.ListThumbnailsTaskResponse;
import com.obs.services.internal.ServiceException;
public class TestListThumbnail {
    /**
     * 初始化 MpcClient
     * @return
     */
    public static MpcClient initMpcClient() {
        HttpConfig httpConfig = HttpConfig.getDefaultHttpConfig().withIgnoreSSLVerification(true).withTimeout(3);
        //http代理设置，请根据实际情况设置
        //httpConfig.withProxyHost("xxxxxx").withProxyPort(xxxxxx).withProxyUsername("xxxxxx").
        //        withProxyPassword("xxxxxx");
        //根据实际填写ak,sk，在控制台账号名下“我的凭证 > 访问密钥”上创建和查看您的AK/SK
        
        String ak = System.getenv("SDK_AK");
        String sk = System.getenv("SDK_SK");
        //根据实际填写项目ID，在控制台账号名下“我的凭证 > API凭证”下查看您的项目ID
        String projectId = System.getenv("PROJECT_ID");
        //根据实际填写所需endpoint，这里以“region01”为例
        String endpoint = "https://mpc.region01.myhuaweicloud.com";
        BasicCredentials auth = new BasicCredentials().withAk(ak).withSk(sk).withProjectId(projectId);
        return MpcClient.newBuilder()
                .withHttpConfig(httpConfig)
                .withCredential(auth)
                .withEndpoint(endpoint)
                .build();
    }
    /**
     * 查询截图任务
     * @param args
     */
    public static void main(String[] args) {
        ListThumbnailsTaskRequest req = new ListThumbnailsTaskRequest().withPage(1).withSize(4)
                .withStartTime("20201220131400")
                .withEndTime("20201220131400")
                .withStatus(ListThumbnailsTaskRequest.StatusEnum.FAILED);
        try {
            ListThumbnailsTaskResponse rsp = initMpcClient().listThumbnailsTask(req);
            System.out.println("rsp=" + JsonUtils.toJSON(rsp));
        } catch (ClientRequestException | ConnectionException | RequestTimeoutException | ServiceException e) {
            System.out.println(e);
        }
    }
}
```