kafka操作API（获取topic列表、创建topic、修改topic、删除topic以及消费组的操作等）

实现kafka的管理端操作API步骤如下：

1.添加pom依赖：

<dependency>
            <groupId>org.springframework.kafkagroupId>
            <artifactId>spring-kafkaartifactId>
            <version>1.1.0version>
        dependency>
        <dependency>
            <groupId>org.apache.kafkagroupId>
            <artifactId>kafka_2.12artifactId>
            <version>1.1.0version>
        dependency>

2.编写java操作语句：

import com.com.wj.kafkaAPI.conf.KafkaConsumerConfig;
import kafka.admin.AdminClient;
import kafka.admin.AdminUtils;
import kafka.admin.RackAwareMode;
import kafka.cluster.Broker;
import kafka.cluster.Cluster;
import kafka.consumer.ConsumerConfig;
import kafka.consumer.KafkaStream;
import kafka.coordinator.group.GroupOverview;
import kafka.javaapi.consumer.ConsumerConnector;
import kafka.javaapi.consumer.ZookeeperConsumerConnector;
import kafka.server.ConfigType;
import kafka.utils.ZkUtils;
import org.apache.kafka.common.TopicPartition;
import org.apache.kafka.common.security.JaasUtils;
import org.apache.zookeeper.KeeperException;
import org.apache.zookeeper.ZooKeeper;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.autoconfigure.condition.ConditionalOnExpression;
import org.springframework.stereotype.Component;
import scala.collection.JavaConversions;
import scala.collection.Map;
import scala.collection.Set;
import java.io.IOException;
import java.util.*;

public class ConsoleApi {
    @Autowired
    private  KafkaConsumerConfig consumerConfig;
    private  ZkUtils zkUtils = null;
    private ZooKeeper zooKeeper = null;

    /**
     * -获取集群信息（与getAllBrokersInCluster（）只是返回类型不一致）
     */
    public  Cluster getCluster(){
        zkUtils = ZkUtils.apply(consumerConfig.getZookeeperConn(), 30000, 30000, JaasUtils.isZkSecurityEnabled());
        return zkUtils.getCluster();
    }
      public  void getLeaderAndIsrForPartition(String topicName,int patition){
          zkUtils = ZkUtils.apply(consumerConfig.getZookeeperConn(), 30000, 30000, JaasUtils.isZkSecurityEnabled());
          System.out.println("打印："+zkUtils.getLeaderAndIsrForPartition(topicName,patition));
    }

    public boolean createConsumer(String groupId,String topic) {
        try {
            Properties properties = new Properties();
            properties.put("zookeeper.connect", consumerConfig.getZookeeperConn());//声明zk
            properties.put("group.id", groupId);
            ConsumerConnector consumer = new ZookeeperConsumerConnector(new ConsumerConfig(properties),true);
            java.util.Map topicCountMap = new HashMap();
            if (topic!=null &&!"".equals(topic)){
                topicCountMap.put(topic, 1); // 一次从主题中获取一个数据
            }else {
                topicCountMap.put("topic", 1); // 一次从主题中获取一个数据
            }
            java.util.Mapbyte[], byte[]>>> messageStreams = consumer.createMessageStreams(topicCountMap);
            return true;
        }catch (RuntimeException e){
            return false;
        }
    }
    public boolean createConsumer(String groupId) {
        return createConsumer(groupId,null);
    }
    public boolean deleteUselessConsumer(String group) {
        return deleteUselessConsumer("-1", group);
    }
    /**
     * -删除topic路径
     * @return
     */
    public  String deleteTopicsPath(){
        zkUtils = ZkUtils.apply(consumerConfig.getZookeeperConn(), 30000, 30000, JaasUtils.isZkSecurityEnabled());
        return zkUtils.DeleteTopicsPath();
    }
    /**
     * -根据brokerId获取broker的信息
     * @param brokerId
     */
    public  Broker getBrokerInfo(int brokerId){
        zkUtils = ZkUtils.apply(consumerConfig.getZookeeperConn(), 30000, 30000, JaasUtils.isZkSecurityEnabled());
        return zkUtils.getBrokerInfo(brokerId).get();
    }

    /**
     * -获取消费者的路径
     * @return
     */

    public  String ConsumersPath(){
        zkUtils = ZkUtils.apply(consumerConfig.getZookeeperConn(), 30000, 30000, JaasUtils.isZkSecurityEnabled());
        return zkUtils.ConsumersPath();
    }
    /**
     * 删除多个topic
     * @param topicNames
     * @return
     */
    public  String[] deleteTopics(final String...topicNames) {
        if(topicNames==null || topicNames.length==0) return new String[0];
         java.util.Set deleted = new LinkedHashSet();
        for(String topicName: topicNames) {
            if(topicName!=null || !topicName.trim().isEmpty()) {
                    deleteTopic(topicName);
                    deleted.add(topicName.trim());
            }
        }
        return deleted.toArray(new String[deleted.size()]);
    }

        /**
         * 获取所有的TopicList
         * @return
         */
    public  List getTopicList() {
        zkUtils = ZkUtils.apply(consumerConfig.getZookeeperConn(), 30000, 30000, JaasUtils.isZkSecurityEnabled());
        List allTopicList = JavaConversions.seqAsJavaList(zkUtils.getAllTopics());
        return allTopicList;
    }
    /**
     * ~获取某个分组下的所有消费者
     * @param groupName
     * @return
     */
    public  List getConsumersInGroup(String groupName) {
        zkUtils = ZkUtils.apply(consumerConfig.getZookeeperConn(), 30000, 30000, JaasUtils.isZkSecurityEnabled());
        List allTopicList = JavaConversions.seqAsJavaList(zkUtils.getConsumersInGroup(groupName));
        return allTopicList;
    }
    /**
     * 判断某个topic是否存在
     * @param topicName
     * @return
     */
    public  boolean topicExists(String topicName) {
        zkUtils = ZkUtils.apply(consumerConfig.getZookeeperConn(), 30000, 30000, JaasUtils.isZkSecurityEnabled());
        boolean exists = AdminUtils.topicExists(zkUtils,topicName);
        return exists;
    }
    /**
     * ~
     * @param groupName
     * @return
     */
    public  boolean isConsumerGroupActive(String groupName) {
        zkUtils = ZkUtils.apply(consumerConfig.getZookeeperConn(), 30000, 30000, JaasUtils.isZkSecurityEnabled());
        boolean exists = AdminUtils.isConsumerGroupActive(zkUtils,groupName);
        return exists;
    }
    /**
     * 获取所有消费者组
     * @return
     */
    public  List getConsumerGroups() {
        zkUtils = ZkUtils.apply(consumerConfig.getZookeeperConn(), 30000, 30000, JaasUtils.isZkSecurityEnabled());
        List set = JavaConversions.seqAsJavaList(zkUtils.getConsumerGroups()) ;
        return set;
    }
    /**
     * 根据消费者的名称获取topic
     * @param groupName
     * @return
     */
    public  List getTopicsByConsumerGroup(String groupName) {
        zkUtils = ZkUtils.apply(consumerConfig.getZookeeperConn(), 30000, 30000, JaasUtils.isZkSecurityEnabled());
        List set2 = JavaConversions.seqAsJavaList(zkUtils.getTopicsByConsumerGroup(groupName)) ;
        return set2;
    }

    /**
     * 获取排序的BrokerList
     * @return
     */
    public  List