查询分区指定偏移量的消息
功能介绍
查询分区指定偏移量的消息。
调用方法
请参见如何调用API。
URI
GET /v2/{project_id}/instances/{instance_id}/management/topics/{topic}/partitions/{partition}/message
参数 |
是否必选 |
参数类型 |
描述 |
---|---|---|---|
project_id |
是 |
String |
参数解释: 项目ID,获取方式请参见获取项目ID。 约束限制: 不涉及。 取值范围: 不涉及。 默认取值: 不涉及。 |
instance_id |
是 |
String |
参数解释: 实例ID。获取方法如下:登录Kafka控制台,在Kafka实例详情页面查找实例ID。 约束限制: 不涉及。 取值范围: 不涉及。 默认取值: 不涉及。 |
topic |
是 |
String |
参数解释: Topic名称。 约束限制: Topic名称必须以字母开头且只支持大小写字母、中横线、下划线以及数字。 取值范围: 不涉及。 默认取值: 不涉及。 |
partition |
是 |
Integer |
参数解释: 分区编号。 约束限制: 不涉及。 取值范围: 不涉及。 默认取值: 不涉及。 |
参数 |
是否必选 |
参数类型 |
描述 |
---|---|---|---|
message_offset |
是 |
String |
参数解释: 消息位置。 约束限制: 不涉及。 取值范围: 不涉及。 默认取值: 不涉及。 |
请求参数
无
响应参数
状态码:200
参数 |
参数类型 |
描述 |
---|---|---|
message |
Array of ShowPartitionMessageEntity objects |
参数解释: 消息列表。 |
参数 |
参数类型 |
描述 |
---|---|---|
key |
String |
参数解释: 消息的key。 取值范围: 不涉及 |
value |
String |
参数解释: 消息内容。 取值范围: 不涉及 |
topic |
String |
参数解释: Topic名称。 取值范围: 不涉及 |
partition |
Integer |
参数解释: 分区编号。 取值范围: 不涉及 |
message_offset |
Long |
参数解释: 消息位置。 取值范围: 不涉及 |
size |
Integer |
参数解释: 消息大小,单位字节。 取值范围: 不涉及 |
timestamp |
Long |
参数解释: 生产消息的时间。 格式为Unix时间戳。单位为毫秒。 取值范围: 不涉及 |
请求示例
GET https://{endpoint}/v2/{project_id}/instances/{instance_id}/management/topics/{topic}/partitions/{partition}/message?message_offset={message_offset}
响应示例
状态码:200
查询分区指定偏移量的消息成功。
{
"message" : [ {
"topic" : "mytest",
"partition" : 0,
"message_offset" : 7,
"key" : null,
"value" : "kasjdf",
"size" : 6,
"timestamp" : 1568125036045
} ]
}
SDK代码示例
SDK代码示例如下。
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package com.huaweicloud.sdk.test;
import com.huaweicloud.sdk.core.auth.ICredential;
import com.huaweicloud.sdk.core.auth.BasicCredentials;
import com.huaweicloud.sdk.core.exception.ConnectionException;
import com.huaweicloud.sdk.core.exception.RequestTimeoutException;
import com.huaweicloud.sdk.core.exception.ServiceResponseException;
import com.huaweicloud.sdk.kafka.v2.region.KafkaRegion;
import com.huaweicloud.sdk.kafka.v2.*;
import com.huaweicloud.sdk.kafka.v2.model.*;
public class ShowPartitionMessageSolution {
public static void main(String[] args) {
// The AK and SK used for authentication are hard-coded or stored in plaintext, which has great security risks. It is recommended that the AK and SK be stored in ciphertext in configuration files or environment variables and decrypted during use to ensure security.
// In this example, AK and SK are stored in environment variables for authentication. Before running this example, set environment variables CLOUD_SDK_AK and CLOUD_SDK_SK in the local environment
String ak = System.getenv("CLOUD_SDK_AK");
String sk = System.getenv("CLOUD_SDK_SK");
String projectId = "{project_id}";
ICredential auth = new BasicCredentials()
.withProjectId(projectId)
.withAk(ak)
.withSk(sk);
KafkaClient client = KafkaClient.newBuilder()
.withCredential(auth)
.withRegion(KafkaRegion.valueOf("<YOUR REGION>"))
.build();
ShowPartitionMessageRequest request = new ShowPartitionMessageRequest();
request.withInstanceId("{instance_id}");
request.withTopic("{topic}");
request.withPartition({partition});
try {
ShowPartitionMessageResponse response = client.showPartitionMessage(request);
System.out.println(response.toString());
} catch (ConnectionException e) {
e.printStackTrace();
} catch (RequestTimeoutException e) {
e.printStackTrace();
} catch (ServiceResponseException e) {
e.printStackTrace();
System.out.println(e.getHttpStatusCode());
System.out.println(e.getRequestId());
System.out.println(e.getErrorCode());
System.out.println(e.getErrorMsg());
}
}
}
|
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 |
# coding: utf-8
import os
from huaweicloudsdkcore.auth.credentials import BasicCredentials
from huaweicloudsdkkafka.v2.region.kafka_region import KafkaRegion
from huaweicloudsdkcore.exceptions import exceptions
from huaweicloudsdkkafka.v2 import *
if __name__ == "__main__":
# The AK and SK used for authentication are hard-coded or stored in plaintext, which has great security risks. It is recommended that the AK and SK be stored in ciphertext in configuration files or environment variables and decrypted during use to ensure security.
# In this example, AK and SK are stored in environment variables for authentication. Before running this example, set environment variables CLOUD_SDK_AK and CLOUD_SDK_SK in the local environment
ak = os.environ["CLOUD_SDK_AK"]
sk = os.environ["CLOUD_SDK_SK"]
projectId = "{project_id}"
credentials = BasicCredentials(ak, sk, projectId)
client = KafkaClient.new_builder() \
.with_credentials(credentials) \
.with_region(KafkaRegion.value_of("<YOUR REGION>")) \
.build()
try:
request = ShowPartitionMessageRequest()
request.instance_id = "{instance_id}"
request.topic = "{topic}"
request.partition = {partition}
response = client.show_partition_message(request)
print(response)
except exceptions.ClientRequestException as e:
print(e.status_code)
print(e.request_id)
print(e.error_code)
print(e.error_msg)
|
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 |
package main
import (
"fmt"
"github.com/huaweicloud/huaweicloud-sdk-go-v3/core/auth/basic"
kafka "github.com/huaweicloud/huaweicloud-sdk-go-v3/services/kafka/v2"
"github.com/huaweicloud/huaweicloud-sdk-go-v3/services/kafka/v2/model"
region "github.com/huaweicloud/huaweicloud-sdk-go-v3/services/kafka/v2/region"
)
func main() {
// The AK and SK used for authentication are hard-coded or stored in plaintext, which has great security risks. It is recommended that the AK and SK be stored in ciphertext in configuration files or environment variables and decrypted during use to ensure security.
// In this example, AK and SK are stored in environment variables for authentication. Before running this example, set environment variables CLOUD_SDK_AK and CLOUD_SDK_SK in the local environment
ak := os.Getenv("CLOUD_SDK_AK")
sk := os.Getenv("CLOUD_SDK_SK")
projectId := "{project_id}"
auth := basic.NewCredentialsBuilder().
WithAk(ak).
WithSk(sk).
WithProjectId(projectId).
Build()
client := kafka.NewKafkaClient(
kafka.KafkaClientBuilder().
WithRegion(region.ValueOf("<YOUR REGION>")).
WithCredential(auth).
Build())
request := &model.ShowPartitionMessageRequest{}
request.InstanceId = "{instance_id}"
request.Topic = "{topic}"
request.Partition = int32({partition})
response, err := client.ShowPartitionMessage(request)
if err == nil {
fmt.Printf("%+v\n", response)
} else {
fmt.Println(err)
}
}
|
更多编程语言的SDK代码示例,请参见API Explorer的代码示例页签,可生成自动对应的SDK代码示例。
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 |
package com.huaweicloud.sdk.test;
import com.huaweicloud.sdk.core.auth.ICredential;
import com.huaweicloud.sdk.core.auth.BasicCredentials;
import com.huaweicloud.sdk.core.exception.ConnectionException;
import com.huaweicloud.sdk.core.exception.RequestTimeoutException;
import com.huaweicloud.sdk.core.exception.ServiceResponseException;
import com.huaweicloud.sdk.kafka.v2.region.KafkaRegion;
import com.huaweicloud.sdk.kafka.v2.*;
import com.huaweicloud.sdk.kafka.v2.model.*;
public class ShowPartitionMessageSolution {
public static void main(String[] args) {
// The AK and SK used for authentication are hard-coded or stored in plaintext, which has great security risks. It is recommended that the AK and SK be stored in ciphertext in configuration files or environment variables and decrypted during use to ensure security.
// In this example, AK and SK are stored in environment variables for authentication. Before running this example, set environment variables CLOUD_SDK_AK and CLOUD_SDK_SK in the local environment
String ak = System.getenv("CLOUD_SDK_AK");
String sk = System.getenv("CLOUD_SDK_SK");
String projectId = "{project_id}";
ICredential auth = new BasicCredentials()
.withProjectId(projectId)
.withAk(ak)
.withSk(sk);
KafkaClient client = KafkaClient.newBuilder()
.withCredential(auth)
.withRegion(KafkaRegion.valueOf("<YOUR REGION>"))
.build();
ShowPartitionMessageRequest request = new ShowPartitionMessageRequest();
request.withInstanceId("{instance_id}");
request.withTopic("{topic}");
request.withPartition({partition});
try {
ShowPartitionMessageResponse response = client.showPartitionMessage(request);
System.out.println(response.toString());
} catch (ConnectionException e) {
e.printStackTrace();
} catch (RequestTimeoutException e) {
e.printStackTrace();
} catch (ServiceResponseException e) {
e.printStackTrace();
System.out.println(e.getHttpStatusCode());
System.out.println(e.getRequestId());
System.out.println(e.getErrorCode());
System.out.println(e.getErrorMsg());
}
}
}
|
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 |
# coding: utf-8
import os
from huaweicloudsdkcore.auth.credentials import BasicCredentials
from huaweicloudsdkkafka.v2.region.kafka_region import KafkaRegion
from huaweicloudsdkcore.exceptions import exceptions
from huaweicloudsdkkafka.v2 import *
if __name__ == "__main__":
# The AK and SK used for authentication are hard-coded or stored in plaintext, which has great security risks. It is recommended that the AK and SK be stored in ciphertext in configuration files or environment variables and decrypted during use to ensure security.
# In this example, AK and SK are stored in environment variables for authentication. Before running this example, set environment variables CLOUD_SDK_AK and CLOUD_SDK_SK in the local environment
ak = os.environ["CLOUD_SDK_AK"]
sk = os.environ["CLOUD_SDK_SK"]
projectId = "{project_id}"
credentials = BasicCredentials(ak, sk, projectId)
client = KafkaClient.new_builder() \
.with_credentials(credentials) \
.with_region(KafkaRegion.value_of("<YOUR REGION>")) \
.build()
try:
request = ShowPartitionMessageRequest()
request.instance_id = "{instance_id}"
request.topic = "{topic}"
request.partition = {partition}
response = client.show_partition_message(request)
print(response)
except exceptions.ClientRequestException as e:
print(e.status_code)
print(e.request_id)
print(e.error_code)
print(e.error_msg)
|
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 |
package main
import (
"fmt"
"github.com/huaweicloud/huaweicloud-sdk-go-v3/core/auth/basic"
kafka "github.com/huaweicloud/huaweicloud-sdk-go-v3/services/kafka/v2"
"github.com/huaweicloud/huaweicloud-sdk-go-v3/services/kafka/v2/model"
region "github.com/huaweicloud/huaweicloud-sdk-go-v3/services/kafka/v2/region"
)
func main() {
// The AK and SK used for authentication are hard-coded or stored in plaintext, which has great security risks. It is recommended that the AK and SK be stored in ciphertext in configuration files or environment variables and decrypted during use to ensure security.
// In this example, AK and SK are stored in environment variables for authentication. Before running this example, set environment variables CLOUD_SDK_AK and CLOUD_SDK_SK in the local environment
ak := os.Getenv("CLOUD_SDK_AK")
sk := os.Getenv("CLOUD_SDK_SK")
projectId := "{project_id}"
auth := basic.NewCredentialsBuilder().
WithAk(ak).
WithSk(sk).
WithProjectId(projectId).
Build()
client := kafka.NewKafkaClient(
kafka.KafkaClientBuilder().
WithRegion(region.ValueOf("<YOUR REGION>")).
WithCredential(auth).
Build())
request := &model.ShowPartitionMessageRequest{}
request.InstanceId = "{instance_id}"
request.Topic = "{topic}"
request.Partition = int32({partition})
response, err := client.ShowPartitionMessage(request)
if err == nil {
fmt.Printf("%+v\n", response)
} else {
fmt.Println(err)
}
}
|
更多编程语言的SDK代码示例,请参见API Explorer的代码示例页签,可生成自动对应的SDK代码示例。
状态码
状态码 |
描述 |
---|---|
200 |
查询分区指定偏移量的消息成功。 |
错误码
请参见错误码。