version: "3"
services:
 ?  mysql:
 ? ? ?  network_mode: mynetwork
 ? ? ?  container_name: mymysql
 ? ? ?  ports:
 ? ? ? ? ?  - 3306:3306
 ? ? ?  restart: always
 ? ? ?  volumes:
 ? ? ? ? ?  - /etc/localtime:/etc/localtime
 ? ? ? ? ?  - /home/mycontainers/mymysql/data:/data
 ? ? ? ? ?  - /home/mycontainers/mymysql/mysql:/var/lib/mysql
 ? ? ? ? ?  - /home/mycontainers/mymysql/conf:/etc/mysql
 ? ? ?  environment:
 ? ? ? ? ?  - MYSQL_ROOT_PASSWORD=root
 ? ? ?  command: 
 ? ? ? ? ?  --character-set-server=utf8mb4
 ? ? ? ? ?  --collation-server=utf8mb4_unicode_ci
 ? ? ? ? ?  --log-bin=/var/lib/mysql/mysql-bin
 ? ? ? ? ?  --server-id=1
 ? ? ? ? ?  --binlog-format=ROW
 ? ? ? ? ?  --expire_logs_days=7
 ? ? ? ? ?  --max_binlog_size=500M
 ? ? ?  image: mysql:5.7.20
 ?  rabbitmq: ? 
 ? ? ?  container_name: myrabbit
 ? ? ?  ports:
 ? ? ? ? ?  - 15672:15672
 ? ? ? ? ?  - 5672:5672
 ? ? ?  restart: always
 ? ? ?  volumes:
 ? ? ? ? ?  - /etc/localtime:/etc/localtime
 ? ? ? ? ?  - /home/mycontainers/myrabbit/rabbitmq:/var/lib/rabbitmq
 ? ? ?  network_mode: mynetwork
 ? ? ?  environment:
 ? ? ? ? ?  - RABBITMQ_DEFAULT_USER=admin
 ? ? ? ? ?  - RABBITMQ_DEFAULT_PASS=123456
 ? ? ?  image: rabbitmq:3.8-management
 ?  canal-server:
 ? ? ?  container_name: canal-server
 ? ? ?  restart: always
 ? ? ?  ports:
 ? ? ? ? ?  - 11110:11110
 ? ? ? ? ?  - 11111:11111
 ? ? ? ? ?  - 11112:11112
 ? ? ?  volumes:
 ? ? ? ? ?  - /home/mycontainers/canal-server/conf/canal.properties:/home/admin/canal-server/conf/canal.properties
 ? ? ? ? ?  - /home/mycontainers/canal-server/conf/instance.properties:/home/admin/canal-server/conf/example/instance.properties
 ? ? ? ? ?  - /home/mycontainers/canal-server/logs:/home/admin/canal-server/logs
 ? ? ?  network_mode: mynetwork
 ? ? ?  depends_on:
 ? ? ? ? ?  - mysql
 ? ? ? ? ?  - rabbitmq
 ? ? ? ? ? ?# - canal-admin
 ? ? ?  image: canal/canal-server:v1.1.5

#################################################
#########     common argument   #############
#################################################
# tcp bind ip
canal.ip =
# register ip to zookeeper
canal.register.ip =
canal.port = 11111
canal.metrics.pull.port = 11112
# canal instance user/passwd
# canal.user = canal
# canal.passwd = E3619321C1A937C46A0D8BD1DAC39F93B27D4458
?
# canal admin config
# canal.admin.manager = canal-admin:8089
?
# canal.admin.port = 11110
# canal.admin.user = admin
# canal.admin.passwd = 6BB4837EB74329105EE4568DDA7DC67ED2CA2AD9
?
# admin auto register 自動(dòng)注冊(cè)
# canal.admin.register.auto = true
# 集群名，單機(jī)則不寫
# canal.admin.register.cluster =
# Canal Server 名字
# canal.admin.register.name = canal-admin
?
canal.zkServers =
# flush data to zk
canal.zookeeper.flush.period = 1000
canal.withoutNetty = false
# tcp, kafka, rocketMQ, rabbitMQ, pulsarMQ
canal.serverMode = tcp
# flush meta cursor/parse position to file
canal.file.data.dir = ${canal.conf.dir}
canal.file.flush.period = 1000
## memory store RingBuffer size, should be Math.pow(2,n)
canal.instance.memory.buffer.size = 16384
## memory store RingBuffer used memory unit size , default 1kb
canal.instance.memory.buffer.memunit = 1024 
## meory store gets mode used MEMSIZE or ITEMSIZE
canal.instance.memory.batch.mode = MEMSIZE
canal.instance.memory.rawEntry = true
?
## detecing config
canal.instance.detecting.enable = false
#canal.instance.detecting.sql = insert into retl.xdual values(1,now()) on duplicate key update x=now()
canal.instance.detecting.sql = select 1
canal.instance.detecting.interval.time = 3
canal.instance.detecting.retry.threshold = 3
canal.instance.detecting.heartbeatHaEnable = false
?
# support maximum transaction size, more than the size of the transaction will be cut into multiple transactions delivery
canal.instance.transaction.size =  1024
# mysql fallback connected to new master should fallback times
canal.instance.fallbackIntervalInSeconds = 60
?
# network config
canal.instance.network.receiveBufferSize = 16384
canal.instance.network.sendBufferSize = 16384
canal.instance.network.soTimeout = 30
?
# binlog filter config
canal.instance.filter.druid.ddl = true
canal.instance.filter.query.dcl = false
canal.instance.filter.query.dml = false
canal.instance.filter.query.ddl = false
canal.instance.filter.table.error = false
canal.instance.filter.rows = false
canal.instance.filter.transaction.entry = false
canal.instance.filter.dml.insert = false
canal.instance.filter.dml.update = false
canal.instance.filter.dml.delete = false
?
# binlog format/image check
canal.instance.binlog.format = ROW,STATEMENT,MIXED 
canal.instance.binlog.image = FULL,MINIMAL,NOBLOB
?
# binlog ddl isolation
canal.instance.get.ddl.isolation = false
?
# parallel parser config
canal.instance.parser.parallel = true
## concurrent thread number, default 60% available processors, suggest not to exceed Runtime.getRuntime().availableProcessors()
canal.instance.parser.parallelThreadSize = 16
## disruptor ringbuffer size, must be power of 2
canal.instance.parser.parallelBufferSize = 256
?
# table meta tsdb info
canal.instance.tsdb.enable = true
canal.instance.tsdb.dir = ${canal.file.data.dir:../conf}/${canal.instance.destination:}
canal.instance.tsdb.url = jdbc:h2:${canal.instance.tsdb.dir}/h2;CACHE_SIZE=1000;MODE=MYSQL;
canal.instance.tsdb.dbUsername = canal
canal.instance.tsdb.dbPassword = canal
# dump snapshot interval, default 24 hour
canal.instance.tsdb.snapshot.interval = 24
# purge snapshot expire , default 360 hour(15 days)
canal.instance.tsdb.snapshot.expire = 360
?
#################################################
#########     destinations    #############
#################################################
canal.destinations = canal-exchange
# conf root dir
canal.conf.dir = ../conf
# auto scan instance dir add/remove and start/stop instance
canal.auto.scan = true
canal.auto.scan.interval = 5
# set this value to 'true' means that when binlog pos not found, skip to latest.
# WARN: pls keep 'false' in production env, or if you know what you want.
canal.auto.reset.latest.pos.mode = false
?
canal.instance.tsdb.spring.xml = classpath:spring/tsdb/h2-tsdb.xml
#canal.instance.tsdb.spring.xml = classpath:spring/tsdb/mysql-tsdb.xml
?
canal.instance.global.mode = spring
canal.instance.global.lazy = false
canal.instance.global.manager.address = ${canal.admin.manager}
#canal.instance.global.spring.xml = classpath:spring/memory-instance.xml
canal.instance.global.spring.xml = classpath:spring/file-instance.xml
#canal.instance.global.spring.xml = classpath:spring/default-instance.xml
?
##################################################
#########    ? ?  MQ Properties ? ?  #############
##################################################
# aliyun ak/sk , support rds/mq
canal.aliyun.accessKey =
canal.aliyun.secretKey =
canal.aliyun.uid=
?
canal.mq.flatMessage = true
canal.mq.canalBatchSize = 50
canal.mq.canalGetTimeout = 100
# Set this value to "cloud", if you want open message trace feature in aliyun.
canal.mq.accessChannel = local
?
canal.mq.database.hash = true
canal.mq.send.thread.size = 30
canal.mq.build.thread.size = 8
?
##################################################
#########      ? ? Kafka     ? ? #############
##################################################
kafka.bootstrap.servers = 127.0.0.1:9092
kafka.acks = all
kafka.compression.type = none
kafka.batch.size = 16384
kafka.linger.ms = 1
kafka.max.request.size = 1048576
kafka.buffer.memory = 33554432
kafka.max.in.flight.requests.per.connection = 1
kafka.retries = 0
?
kafka.kerberos.enable = false
kafka.kerberos.krb5.file = "../conf/kerberos/krb5.conf"
kafka.kerberos.jaas.file = "../conf/kerberos/jaas.conf"
?
##################################################
#########      ?  RocketMQ   ? ? #############
##################################################
rocketmq.producer.group = test
rocketmq.enable.message.trace = false
rocketmq.customized.trace.topic =
rocketmq.namespace =
rocketmq.namesrv.addr = 127.0.0.1:9876
rocketmq.retry.times.when.send.failed = 0
rocketmq.vip.channel.enabled = false
rocketmq.tag = 
?
##################################################
#########      ?  RabbitMQ   ? ? #############
##################################################
rabbitmq.host = myrabbit
rabbitmq.virtual.host = /
rabbitmq.exchange = canal-exchange
rabbitmq.username = admin
rabbitmq.password = RabbitMQ密碼
rabbitmq.deliveryMode =
?
##################################################
#########      ? ?  Pulsar ? ? ? ? #############
##################################################
pulsarmq.serverUrl =
pulsarmq.roleToken =
pulsarmq.topicTenantPrefix =

#################################################
## mysql serverId , v1.0.26+ will autoGen
#canal.instance.mysql.slaveId=123
?
# enable gtid use true/false
canal.instance.gtidon=false
?
# position info
canal.instance.master.address=mymysql:3306
canal.instance.master.journal.name=
canal.instance.master.position=
canal.instance.master.timestamp=
canal.instance.master.gtid=
?
# rds oss binlog
canal.instance.rds.accesskey=
canal.instance.rds.secretkey=
canal.instance.rds.instanceId=
?
# table meta tsdb info
canal.instance.tsdb.enable=true
#canal.instance.tsdb.url=jdbc:mysql://127.0.0.1:3306/canal_tsdb
#canal.instance.tsdb.dbUsername=canal
#canal.instance.tsdb.dbPassword=canal
?
#canal.instance.standby.address =
#canal.instance.standby.journal.name =
#canal.instance.standby.position =
#canal.instance.standby.timestamp =
#canal.instance.standby.gtid=
?
# username/password
canal.instance.dbUsername=canal
canal.instance.dbPassword=canal
canal.instance.connectionCharset = UTF-8
# enable druid Decrypt database password
canal.instance.enableDruid=false
#canal.instance.pwdPublicKey=MFwwDQYJKoZIhvcNAQEBBQADSwAwSAJBALK4BUxdDltRRE5/zXpVEVPUgunvscYFtEip3pmLlhrWpacX7y7GCMo2/JM6LeHmiiNdH1FWgGCpUfircSwlWKUCAwEAAQ==
?
# table regex
canal.instance.filter.regex=.*\..*
# table black regex
canal.instance.filter.black.regex=mysql\.slave_.*
# table field filter(format: schema1.tableName1:field1/field2,schema2.tableName2:field1/field2)
#canal.instance.filter.field=test1.t_product:id/subject/keywords,test2.t_company:id/name/contact/ch
# table field black filter(format: schema1.tableName1:field1/field2,schema2.tableName2:field1/field2)
#canal.instance.filter.black.field=test1.t_product:subject/product_image,test2.t_company:id/name/contact/ch
?
# mq config
canal.mq.topic=canal-routing-key
# dynamic topic route by schema or table regex
#canal.mq.dynamicTopic=mytest1.user,topic2:mytest2\..*,.*\..*
canal.mq.partition=0
# hash partition config
#canal.mq.enableDynamicQueuePartition=false
#canal.mq.partitionsNum=3
#canal.mq.dynamicTopicPartitionNum=test.*:4,mycanal:6
#canal.mq.partitionHash=test.table:id^name,.*\..*
#################################################

canal.instance.master.address=mymysql:3306
canal.instance.dbUsername=canal
canal.instance.dbPassword=canal

# 進(jìn)入docker中的mysql容器
docker exec -it mymysql bash
# 進(jìn)入mysql指令模式
mysql -uroot -proot
?
# 編寫MySQL語(yǔ)句并執(zhí)行
> ...

-- 選擇mysql
use mysql;
-- 創(chuàng)建canal用戶，賬密：canal/canal
create user 'canal'@'%' identified by 'canal';
-- 分配權(quán)限，以及允許所有主機(jī)登錄該用戶
grant SELECT, INSERT, UPDATE, DELETE, REPLICATION SLAVE, REPLICATION CLIENT on *.* to 'canal'@'%';
?
-- 刷新一下使其生效
flush privileges;
?
-- 附帶一個(gè)刪除用戶指令
drop user 'canal'@'%';

<canal.version>1.1.5</canal.version>
?
<!--canal-->
<dependency>
 ?<groupId>com.alibaba.otter</groupId>
 ?<artifactId>canal.client</artifactId>
 ?<version>${canal.version}</version>
</dependency>
<dependency>
 ?<groupId>com.alibaba.otter</groupId>
 ?<artifactId>canal.protocol</artifactId>
 ?<version>${canal.version}</version>
</dependency>

import com.alibaba.otter.canal.client.CanalConnector;
import com.alibaba.otter.canal.client.CanalConnectors;
import com.alibaba.otter.canal.protocol.CanalEntry;
import com.alibaba.otter.canal.protocol.Message;
import org.springframework.boot.CommandLineRunner;
import org.springframework.stereotype.Component;
import java.net.InetSocketAddress;
import java.util.List;
@Component
public class CanalClient {
 ? ?private final static int BATCH_SIZE = 1000;
 ? ?public void run() {
 ? ? ? ?// 創(chuàng)建鏈接
 ? ? ? ?CanalConnector connector = CanalConnectors.newSingleConnector(new InetSocketAddress("localhost", 11111), "canal-exchange", "canal", "canal");
 ? ? ? ?try {
 ? ? ? ? ? ?//打開(kāi)連接
 ? ? ? ? ? ?connector.connect();
 ? ? ? ? ? ?//訂閱數(shù)據(jù)庫(kù)表,全部表
 ? ? ? ? ? ?connector.subscribe(".*\..*");
 ? ? ? ? ? ?//回滾到未進(jìn)行ack的地方，下次fetch的時(shí)候，可以從最后一個(gè)沒(méi)有ack的地方開(kāi)始拿
 ? ? ? ? ? ?connector.rollback();
 ? ? ? ? ? ?while (true) {
 ? ? ? ? ? ? ? ?// 獲取指定數(shù)量的數(shù)據(jù)
 ? ? ? ? ? ? ? ?Message message = connector.getWithoutAck(BATCH_SIZE);
 ? ? ? ? ? ? ? ?//獲取批量ID
 ? ? ? ? ? ? ? ?long batchId = message.getId();
 ? ? ? ? ? ? ? ?//獲取批量的數(shù)量
 ? ? ? ? ? ? ? ?int size = message.getEntries().size();
 ? ? ? ? ? ? ? ?//如果沒(méi)有數(shù)據(jù)
 ? ? ? ? ? ? ? ?if (batchId == -1 || size == 0) {
 ? ? ? ? ? ? ? ? ? ?try {
 ? ? ? ? ? ? ? ? ? ? ? ?//線程休眠2秒
 ? ? ? ? ? ? ? ? ? ? ? ?Thread.sleep(2000);
 ? ? ? ? ? ? ? ? ?  } catch (InterruptedException e) {
 ? ? ? ? ? ? ? ? ? ? ? ?e.printStackTrace();
 ? ? ? ? ? ? ? ? ?  }
 ? ? ? ? ? ? ?  } else {
 ? ? ? ? ? ? ? ? ? ?//如果有數(shù)據(jù),處理數(shù)據(jù)
 ? ? ? ? ? ? ? ? ? ?printEntry(message.getEntries());
 ? ? ? ? ? ? ?  }
 ? ? ? ? ? ? ? ?//進(jìn)行 batch id 的確認(rèn)。確認(rèn)之后，小于等于此 batchId 的 Message 都會(huì)被確認(rèn)。
 ? ? ? ? ? ? ? ?connector.ack(batchId);
 ? ? ? ? ?  }
 ? ? ?  } catch (Exception e) {
 ? ? ? ? ? ?e.printStackTrace();
 ? ? ?  } finally {
 ? ? ? ? ? ?connector.disconnect();
 ? ? ?  }
 ?  }
?
 ? ?/**
 ? ? * 打印canal server解析binlog獲得的實(shí)體類信息
 ? ? */
 ? ?private static void printEntry(List<CanalEntry.Entry> entrys) {
 ? ? ? ?for (CanalEntry.Entry entry : entrys) {
 ? ? ? ? ? ?if (entry.getEntryType() == CanalEntry.EntryType.TRANSACTIONBEGIN || entry.getEntryType() == CanalEntry.EntryType.TRANSACTIONEND) {
 ? ? ? ? ? ? ? ?//開(kāi)啟/關(guān)閉事務(wù)的實(shí)體類型，跳過(guò)
 ? ? ? ? ? ? ? ?continue;
 ? ? ? ? ?  }
 ? ? ? ? ? ?//RowChange對(duì)象，包含了一行數(shù)據(jù)變化的所有特征
 ? ? ? ? ? ?//比如isDdl 是否是ddl變更操作 sql 具體的ddl sql beforeColumns afterColumns 變更前后的數(shù)據(jù)字段等等
 ? ? ? ? ? ?CanalEntry.RowChange rowChage;
 ? ? ? ? ? ?try {
 ? ? ? ? ? ? ? ?rowChage = CanalEntry.RowChange.parseFrom(entry.getStoreValue());
 ? ? ? ? ?  } catch (Exception e) {
 ? ? ? ? ? ? ? ?throw new RuntimeException("ERROR ## parser of eromanga-event has an error , data:" + entry.toString(), e);
 ? ? ? ? ?  }
 ? ? ? ? ? ?//獲取操作類型：insert/update/delete類型
 ? ? ? ? ? ?CanalEntry.EventType eventType = rowChage.getEventType();
 ? ? ? ? ? ?//打印Header信息
 ? ? ? ? ? ?System.out.println(String.format("================》; binlog[%s:%s] , name[%s,%s] , eventType : %s",
 ? ? ? ? ? ? ? ? ? ?entry.getHeader().getLogfileName(), entry.getHeader().getLogfileOffset(),
 ? ? ? ? ? ? ? ? ? ?entry.getHeader().getSchemaName(), entry.getHeader().getTableName(),
 ? ? ? ? ? ? ? ? ? ?eventType));
 ? ? ? ? ? ?//判斷是否是DDL語(yǔ)句
 ? ? ? ? ? ?if (rowChage.getIsDdl()) {
 ? ? ? ? ? ? ? ?System.out.println("================》;isDdl: true,sql:" + rowChage.getSql());
 ? ? ? ? ?  }
 ? ? ? ? ? ?//獲取RowChange對(duì)象里的每一行數(shù)據(jù)，打印出來(lái)
 ? ? ? ? ? ?for (CanalEntry.RowData rowData : rowChage.getRowDatasList()) {
 ? ? ? ? ? ? ? ?//如果是刪除語(yǔ)句
 ? ? ? ? ? ? ? ?if (eventType == CanalEntry.EventType.DELETE) {
 ? ? ? ? ? ? ? ? ? ?printColumn(rowData.getBeforeColumnsList());
 ? ? ? ? ? ? ? ? ? ?//如果是新增語(yǔ)句
 ? ? ? ? ? ? ?  } else if (eventType == CanalEntry.EventType.INSERT) {
 ? ? ? ? ? ? ? ? ? ?printColumn(rowData.getAfterColumnsList());
 ? ? ? ? ? ? ? ? ? ?//如果是更新的語(yǔ)句
 ? ? ? ? ? ? ?  } else {
 ? ? ? ? ? ? ? ? ? ?//變更前的數(shù)據(jù)
 ? ? ? ? ? ? ? ? ? ?System.out.println("------->; before");
 ? ? ? ? ? ? ? ? ? ?printColumn(rowData.getBeforeColumnsList());
 ? ? ? ? ? ? ? ? ? ?//變更后的數(shù)據(jù)
 ? ? ? ? ? ? ? ? ? ?System.out.println("------->; after");
 ? ? ? ? ? ? ? ? ? ?printColumn(rowData.getAfterColumnsList());
 ? ? ? ? ? ? ?  }
 ? ? ? ? ?  }
 ? ? ?  }
 ?  }
?
 ? ?private static void printColumn(List<CanalEntry.Column> columns) {
 ? ? ? ?for (CanalEntry.Column column : columns) {
 ? ? ? ? ? ?System.out.println(column.getName() + " : " + column.getValue() + " ?  update=" + column.getUpdated());
 ? ? ?  }
 ?  }
}

@SpringBootApplication
public class BaseApplication implements CommandLineRunner {
 ? ?@Autowired
 ? ?private CanalClient canalClient;
?
 ? ?@Override
 ? ?public void run(String... args) throws Exception {
 ? ? ? ?canalClient.run();
 ?  }
}

canal.serverMode = rabbitMQ

canal.mq.topic=canal-routing-key

##################################################
#########      ?  RabbitMQ   ? ? #############
##################################################
# 連接rabbit，寫IP，因?yàn)橥瑐€(gè)網(wǎng)絡(luò)下，所以可以寫容器名
rabbitmq.host = myrabbit
rabbitmq.virtual.host = /
# 交換器名稱，等等我們要去手動(dòng)創(chuàng)建
rabbitmq.exchange = canal-exchange
# 賬密
rabbitmq.username = admin
rabbitmq.password = 123456
# 暫不支持指定端口，使用的是默認(rèn)的5762，好在在本示例中適用

<amqp.version>2.3.4.RELEASE</amqp.version>
?
<!--消息隊(duì)列-->
<dependency>
 ?<groupId>org.springframework.boot</groupId>
 ?<artifactId>spring-boot-starter-amqp</artifactId>
 ?<version>${amqp.version}</version>
</dependency>

spring:
  rabbitmq:
 ? ?# ?  host: myserverhost
 ?  host: 192.168.0.108
 ?  port: 5672
 ?  username: admin
 ?  password: RabbitMQ密碼
 ? ?# 消息確認(rèn)配置項(xiàng)
 ? ?# 確認(rèn)消息已發(fā)送到交換機(jī)(Exchange)
 ?  publisher-confirm-type: correlated
 ? ?# 確認(rèn)消息已發(fā)送到隊(duì)列(Queue)
 ?  publisher-returns: true

@Configuration
public class RabbitConfig {
 ? ?@Bean
 ? ?public RabbitTemplate rabbitTemplate(ConnectionFactory connectionFactory) {
 ? ? ? ?RabbitTemplate template = new RabbitTemplate();
 ? ? ? ?template.setConnectionFactory(connectionFactory);
 ? ? ? ?template.setMessageConverter(new Jackson2JsonMessageConverter());
?
 ? ? ? ?return template;
 ?  }
?
 ? ?/**
 ? ? * template.setMessageConverter(new Jackson2JsonMessageConverter());
 ? ? * 這段和上面這行代碼解決RabbitListener循環(huán)報(bào)錯(cuò)的問(wèn)題
 ? ? */
 ? ?@Bean
 ? ?public SimpleRabbitListenerContainerFactory rabbitListenerContainerFactory(ConnectionFactory connectionFactory) {
 ? ? ? ?SimpleRabbitListenerContainerFactory factory = new SimpleRabbitListenerContainerFactory();
 ? ? ? ?factory.setConnectionFactory(connectionFactory);
 ? ? ? ?factory.setMessageConverter(new Jackson2JsonMessageConverter());
 ? ? ? ?return factory;
 ?  }
}

public static final String CanalQueue = "canal-queue";
public static final String CanalExchange = "canal-exchange";
public static final String CanalRouting = "canal-routing-key";

/**
 * Canal消息提供者，canal-server生產(chǎn)的消息通過(guò)RabbitMQ消息隊(duì)列發(fā)送
 */
@Configuration
public class CanalProvider {
 ? ?/**
 ? ? * 隊(duì)列
 ? ? */
 ? ?@Bean
 ? ?public Queue canalQueue() {
 ? ? ? ?/**
 ? ? ? ? * durable:是否持久化，默認(rèn)false，持久化隊(duì)列：會(huì)被存儲(chǔ)在磁盤上，當(dāng)消息代理重啟時(shí)仍然存在；暫存隊(duì)列：當(dāng)前連接有效
 ? ? ? ? * exclusive:默認(rèn)為false，只能被當(dāng)前創(chuàng)建的連接使用，而且當(dāng)連接關(guān)閉后隊(duì)列即被刪除。此參考優(yōu)先級(jí)高于durable
 ? ? ? ? * autoDelete:是否自動(dòng)刪除，當(dāng)沒(méi)有生產(chǎn)者或者消費(fèi)者使用此隊(duì)列，該隊(duì)列會(huì)自動(dòng)刪除
 ? ? ? ? */
 ? ? ? ?return new Queue(RabbitConstant.CanalQueue, true);
 ?  }
?
 ? ?/**
 ? ? * 交換機(jī)，這里使用直連交換機(jī)
 ? ? */
 ? ?@Bean
 ? ?DirectExchange canalExchange() {
 ? ? ? ?return new DirectExchange(RabbitConstant.CanalExchange, true, false);
 ?  }
?
 ? ?/**
 ? ? * 綁定交換機(jī)和隊(duì)列，并設(shè)置匹配鍵
 ? ? */
 ? ?@Bean
 ? ?Binding bindingCanal() {
 ? ? ? ?return BindingBuilder.bind(canalQueue()).to(canalExchange()).with(RabbitConstant.CanalRouting);
 ?  }
}

/**
 * Canal消息消費(fèi)者
 */
@Component
@RabbitListener(queues = RabbitConstant.CanalQueue)
public class CanalComsumer {
 ? ?private final SysBackupService sysBackupService;
?
 ? ?public CanalComsumer(SysBackupService sysBackupService) {
 ? ? ? ?this.sysBackupService = sysBackupService;
 ?  }
?
 ? ?@RabbitHandler
 ? ?public void process(Map<String, Object> msg) {
 ? ? ? ?System.out.println("收到canal消息：" + msg);
 ? ? ? ?boolean isDdl = (boolean) msg.get("isDdl");
?
 ? ? ? ?// 不處理DDL事件
 ? ? ? ?if (isDdl) {
 ? ? ? ? ? ?return;
 ? ? ?  }
?
 ? ? ? ?// TiCDC的id，應(yīng)該具有唯一性，先保存再說(shuō)
 ? ? ? ?int tid = (int) msg.get("id");
 ? ? ? ?// TiCDC生成該消息的時(shí)間戳，13位毫秒級(jí)
 ? ? ? ?long ts = (long) msg.get("ts");
 ? ? ? ?// 數(shù)據(jù)庫(kù)
 ? ? ? ?String database = (String) msg.get("database");
 ? ? ? ?// 表
 ? ? ? ?String table = (String) msg.get("table");
 ? ? ? ?// 類型：INSERT/UPDATE/DELETE
 ? ? ? ?String type = (String) msg.get("type");
 ? ? ? ?// 每一列的數(shù)據(jù)值
 ? ? ? ?List<?> data = (List<?>) msg.get("data");
 ? ? ? ?// 僅當(dāng)type為UPDATE時(shí)才有值，記錄每一列的名字和UPDATE之前的數(shù)據(jù)值
 ? ? ? ?List<?> old = (List<?>) msg.get("old");
?
 ? ? ? ?// 跳過(guò)sys_backup，防止無(wú)限循環(huán)
 ? ? ? ?if ("sys_backup".equalsIgnoreCase(table)) {
 ? ? ? ? ? ?return;
 ? ? ?  }
?
 ? ? ? ?// 只處理指定類型
 ? ? ? ?if (!"INSERT".equalsIgnoreCase(type)
 ? ? ? ? ? ? ? ?&& !"UPDATE".equalsIgnoreCase(type)
 ? ? ? ? ? ? ? ?&& !"DELETE".equalsIgnoreCase(type)) {
 ? ? ? ? ? ?return;
 ? ? ?  }
 ?  }
}