kafka删除topic-使用java代码删除的三种方式

提示,删除topic之前,一定要确认kafka的broker是否有这个配置

delete.topic.enable=true

如果为false是删除不成功的一定要确认是否为true

ps -ef|grep kafka去看kafka的启动参数配置

 

1.低版本的kafka_2.11

maven依赖

<dependency>
    <groupId>org.apache.kafka</groupId>
    <artifactId>kafka_2.11</artifactId>
    <version>0.9.0.1</version>
</dependency>

java代码:

    public Map<String,String> deleteTopic(List<String> topics) {
        if (CollectionUtils.isEmpty(topics)){
            return null;
        }
        String zkServer = "zk-1-svc:4180,zk-2-svc:4180,zk-3-svc:4180";
        int sessionTimeoutMs = 30 * 1000;
        int connectionTimeoutMs = 30 * 1000;
        ZkClient client = new ZkClient(zkServer, sessionTimeoutMs, connectionTimeoutMs);
        client.setZkSerializer(new StringZkSerializer()); // 一定要加上ZkSerializer
        // Security for Kafka was added in Kafka 0.9.0.1
        boolean isSecureKafkaCluster = false;
        ZkUtils zkUtils = new ZkUtils(client, new ZkConnection(zkServer), isSecureKafkaCluster);
        Map<String,String> result = new HashMap<>();
        for (String topicName : topics) {
            try {
                if (!AdminUtils.topicExists(zkUtils,topicName)){
                    continue;
                }
                AdminUtils.deleteTopic(zkUtils, topicName);
                result.put(topicName,"success");
            } catch (Exception e) {
                logger.error("TopicService-deleteTopic 删除topic失败,topicName={}", topicName, e);
                result.put(topicName,"fail");
            }
        }
        client.close();
        return result;
    }

2.高本版的kafka_2.11删除topic方式

maven依赖

        <dependency>
            <groupId>org.apache.kafka</groupId>
            <artifactId>kafka_2.11</artifactId>
            <version>1.1.1</version>
        </dependency>

java代码

    public void delete(String topic) {
        int sessionTimeoutMs = 30 * 1000;
        int connectionTimeoutMs = 30 * 1000;
        ZooKeeperClient zooKeeperClient = new ZooKeeperClient("zk-1-svc:4180,zk-2-svc:4180,zk-3-svc:4180",sessionTimeoutMs,connectionTimeoutMs,10, Time.SYSTEM,"","");
        KafkaZkClient kafkaZkClient = new KafkaZkClient(zooKeeperClient,false,Time.SYSTEM);
        try {
            TopicCommand.deleteTopic(kafkaZkClient, new TopicCommand.TopicCommandOptions(
                    new String[]{"--delete", "--topic", topic}));
        }catch (Exception e){
            System.out.println("fail");
        }
        System.out.println("success");
    }

 

3:kafka客户端自带的删除方式

maven依赖

        <dependency>
            <groupId>org.apache.kafka</groupId>
            <artifactId>kafka-clients</artifactId>
            <version>1.1.1</version>
        </dependency>

java代码

    public Map<String, Boolean> deleteTopic(String topicName) {
        Properties properties = new Properties();
        properties.put(AdminClientConfig.BOOTSTRAP_SERVERS_CONFIG, "broker-1:9092,broker-2:9092,broker-3:9092");
        properties.put(AdminClientConfig.REQUEST_TIMEOUT_MS_CONFIG, 30000);
        AdminClient adminClient = AdminClient.create(properties);
        DeleteTopicsResult deleteTopicsResult = adminClient.deleteTopics(Collections.singleton(topicName));
        Map<String, Boolean> map = new HashMap<>();
        try {
            for (Map.Entry<String, KafkaFuture<Void>> entry : deleteTopicsResult.values().entrySet()) {
                String topic = entry.getKey();
                KafkaFuture<Void> future = entry.getValue();
                future.get();//执行
                map.put(topic, !future.isCompletedExceptionally());
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
        return map;
    }