建设工程教育网官方网站,网站开发u盘128够吗,互联网公司排名广州,网站图片怎么优化文章目录 前言一、Kafka3.1X版本在Windows11主机部署二、Kafk生产Topic主题数据1.kafka生产数据2.JAVA kafka客户端消费数据 总结 前言
本章节主要讲述Kafka3.1X版本在Windows11主机下部署以及JAVA对Kafka应用#xff1a;
一、Kafka3.1X版本在Windows11主机部署
1.安装JDK配… 文章目录 前言一、Kafka3.1X版本在Windows11主机部署二、Kafk生产Topic主题数据1.kafka生产数据2.JAVA kafka客户端消费数据 总结 前言
本章节主要讲述Kafka3.1X版本在Windows11主机下部署以及JAVA对Kafka应用
一、Kafka3.1X版本在Windows11主机部署
1.安装JDK配置环境变量
2.Zookeeperzookeeper-3.7.1 zk 部署后的目录位置D:\setup\apache-zookeeper-3.7.1
3.安装Kafka3.1X 3.1 下载包kafka_2.12-3.1.2.tgz Kafka 3.2、 解压并进入Kafka目录 根目录D:\setup\kafka3.1.2
3、 编辑config/server.properties文件 注意 log.dirsD:\setup\kafka3.1.2\logs 为根目录下的\logs
listenersPLAINTEXT://0.0.0.0:9092
advertised.listenersPLAINTEXT://localhost:9092
log.dirsD:\\setup\\kafka3.1.2\\logs4.运行Zookeeper Zookeeper安装目录D:\setup\apache-zookeeper-3.7.1\bin按下Shift右键选择“打开命令窗口”选项打开命令行 .\zkServer.cmd;5.运行Kafka Kafka安装目录D:\setup\kafka3.1.2按下Shift右键选择“打开命令窗口”选项打开命令行
.\bin\windows\kafka-server-start.bat .\config\server.properties二、Kafk生产Topic主题数据
1.kafka生产数据
创建Topic主题heima
.\bin\windows\kafka-topics.bat --bootstrap-server localhost:9092 --create --topic heima --partitions 2 --replication-factor 1
Created topic heima.查看Topic主题heima
.\bin\windows\kafka-topics.bat --describe --bootstrap-server localhost:9092 --topic heimaTopic主题heima生产数据
.\bin\windows\kafka-console-producer.bat --broker-list localhost:9092 --topic heima在 符号后输入数据
{mobilePhone:186xxxx1234,roleCode:super_admin_xxx}2.JAVA kafka客户端消费数据
2.1 pom.xml文件配置kafka客户端-kafka-clients-2.0.1版本 !-- kafka客户端 --dependencygroupIdorg.apache.kafka/groupIdartifactIdkafka-clients/artifactIdversion2.0.1/version/dependency2.2 JAVA数据读取文件
package com.ems.mgr.web.controller.thirdparty;
import com.alibaba.fastjson.JSONObject;
import com.ems.mgr.common.utils.spring.SpringUtils;
import com.ems.mgr.system.service.ISysUserService;
import org.apache.commons.lang3.StringUtils;
import org.apache.kafka.clients.consumer.ConsumerConfig;
import org.apache.kafka.clients.consumer.ConsumerRecord;
import org.apache.kafka.clients.consumer.ConsumerRecords;
import org.apache.kafka.clients.consumer.KafkaConsumer;
import org.apache.kafka.common.serialization.StringDeserializer;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.time.Duration;
import java.util.Collections;
import java.util.Properties;/*** Kafka服务器操作与数据读取*/
public class KafkaUtilDemo {public static final Logger log LoggerFactory.getLogger(KafkaUtilDemo.class);public static final Properties props new Properties();
// protected ISysUserService userService SpringUtils.getBean(ISysUserService.class);public static void init(String kafakservers) {// 配置Kafka消费者属性props.put(ConsumerConfig.BOOTSTRAP_SERVERS_CONFIG, kafakservers);props.put(ConsumerConfig.GROUP_ID_CONFIG, test-group);props.put(ConsumerConfig.KEY_DESERIALIZER_CLASS_CONFIG, StringDeserializer.class.getName());props.put(ConsumerConfig.VALUE_DESERIALIZER_CLASS_CONFIG, StringDeserializer.class.getName());props.put(ConsumerConfig.AUTO_OFFSET_RESET_CONFIG, earliest);}/*** 持续监听并处理kafa消息当手机号mobilePhone非空时进入数据同步操作* param kafaktopic* return*/public static String poll(String kafaktopic) {String msg ;try {KafkaConsumerString, String consumer new KafkaConsumer(props);consumer.subscribe(Collections.singletonList(kafaktopic));log.info(Kafka消费者订阅指定主题,持续监听并处理消息);while (true) {ConsumerRecordsString, String records consumer.poll(Duration.ofMillis(60000));for (ConsumerRecordString, String record : records) {log.info(offset record.offset() ,key record.key() ,value record.value());msg record.value();if (!StringUtils.isBlank(record.value())) {JSONObject jsonObject JSONObject.parseObject(record.value());String mobilePhone jsonObject.getString(mobilePhone);if (StringUtils.isBlank(mobilePhone)) {log.error(Kafka消费者手机号mobilePhone为空);} else {KafkaUtilDemo kafkaUtil new KafkaUtilDemo();kafkaUtil.syncSystemInfoTask(jsonObject);}}}}} catch (Exception e) {log.error(Kafka消费者订阅指定主题,持续监听并处理消息 error msg e.getMessage());}return msg;}public boolean syncSystemInfoTask(JSONObject jsonObject) {boolean repsBln true;try {String mobilePhone jsonObject.getString(mobilePhone);String roleType jsonObject.getString(roleType);String roleCode jsonObject.getString(roleCode);log.info(业务数据同步操作................);} catch (Exception e) {repsBln false;log.error(Kafka消费者同步入库异常,error msg e.getMessage());}return repsBln;}public static void main(String[] args) {try {String kafakservers localhost:9092;String kafaktopic heima;init(kafakservers);poll(kafaktopic);} catch (Exception e) {log.error(error msg e.getMessage());}}}
3 执行KafkaUtilDemo 文件查看消费数据。
总结
pom.xml文件在引入spring-kafka 会由于版本问题出现 org.apache.kafka kafka-clients 2.0.1 dependencygroupIdorg.springframework.kafka/groupIdartifactIdspring-kafka/artifactIdversion2.2.8.RELEASE/version/dependency
