binlog+canel windows服务器下mysql数据的部署过程

1.开启mysql的binlog功能，并配置binlog模式为row。

  1.1windos下修改mysql的my.ini文件（该文件在C:\ProgramData\MySQL\MySQL Server 5.7，而不是C:\Program             Files\MySQL\MySQL Server 5.7下的my-default.ini文件，C:\ProgramData\MySQL\MySQL Server 5.7是一个隐藏文件，需要显示隐藏文件才能找得到）

 1.2修改my.ini增加如下配置

1. log-bin=mysql-bin #添加这一行就ok

2. binlog-format=ROW #选择row模式

3. server_id=1 #配置mysql replaction需要定义，不能和canal的slaveId重

1.3在mysql中 配置canal数据库管理用户，配置相应权限（repication权限）

       

  CREATE USER canal IDENTIFIED BY 'canal';  
  GRANT SELECT, REPLICATION SLAVE, REPLICATION CLIENT ON *.* TO 'canal'@'%';
  FLUSH PRIVILEGES;

 1.4重启mysql服务

2.下载canel程序 ： https://github.com/alibaba/canal/releases

 

2.1解压后的目录如下

2.2修改instance.properties文件的配置

# 主库的IP地址和端口号，目前是我本机的IP和端口
canal.instance.master.address=127.0.0.1:3306
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=

# 上文中1.3新增了数据库的用户信息canel

canal.instance.dbUsername=canal
canal.instance.dbPassword=canal
canal.instance.connectionCharset = UTF-8

#默认数据库，我自己创建的一个库20190426
canal.instance.defaultDatabaseName = 20190426  
# enable druid Decrypt database password
canal.instance.enableDruid=false

2.3 执行bin目录下的startup.bat，双击执行

2.4执行控制台如下

3.创建监听的maven工程 

添加POM依赖   

 

    com.alibaba.otter

    canal.client

    1.0.12

   

package com.banksteel.canel;


import java.net.InetSocketAddress;
import java.util.List;
 
import com.alibaba.otter.canal.client.CanalConnector;
import com.alibaba.otter.canal.common.utils.AddressUtils;
import com.alibaba.otter.canal.protocol.Message;
import com.alibaba.otter.canal.protocol.CanalEntry.Column;
import com.alibaba.otter.canal.protocol.CanalEntry.Entry;
import com.alibaba.otter.canal.protocol.CanalEntry.EntryType;
import com.alibaba.otter.canal.protocol.CanalEntry.EventType;
import com.alibaba.otter.canal.protocol.CanalEntry.RowChange;
import com.alibaba.otter.canal.protocol.CanalEntry.RowData;
import com.alibaba.otter.canal.client.*;
 
public class ClientSample {
 
    public static void main(String args[]) {
        // 创建链接
        CanalConnector connector = CanalConnectors.newSingleConnector(new InetSocketAddress(AddressUtils.getHostIp(),
                11111), "example", "", "");
        int batchSize = 1000;
        int emptyCount = 0;
        try {
            connector.connect();
            connector.subscribe(".*\\..*");
            connector.rollback();
            int totalEmtryCount = 1200;
            while (emptyCount < totalEmtryCount) {
                Message message = connector.getWithoutAck(batchSize); // 获取指定数量的数据
                long batchId = message.getId();
                int size = message.getEntries().size();
                if (batchId == -1 || size == 0) {
                    emptyCount++;
                    System.out.println("empty count : " + emptyCount);
                    try {
                        Thread.sleep(1000);
                    } catch (InterruptedException e) {
                        e.printStackTrace();
                    }
                } else {
                    emptyCount = 0;
                    // System.out.printf("message[batchId=%s,size=%s] \n", batchId, size);
                    printEntry(message.getEntries());
                }
 
                connector.ack(batchId); // 提交确认
                // connector.rollback(batchId); // 处理失败, 回滚数据
            }
 
            System.out.println("empty too many times, exit");
        } finally {
            connector.disconnect();
        }
    }
 
    private static void printEntry(List entrys) {
        for (Entry entry : entrys) {
            if (entry.getEntryType() == EntryType.TRANSACTIONBEGIN || entry.getEntryType() == EntryType.TRANSACTIONEND) {
                continue;
            }
 
            RowChange rowChage = null;
            try {
                rowChage = RowChange.parseFrom(entry.getStoreValue());
            } catch (Exception e) {
                throw new RuntimeException("ERROR ## parser of eromanga-event has an error , data:" + entry.toString(),
                        e);
            }
 
            EventType eventType = rowChage.getEventType();
            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));
 
            for (RowData rowData : rowChage.getRowDatasList()) {
                if (eventType == EventType.DELETE) {
                    printColumn(rowData.getBeforeColumnsList());
                } else if (eventType == EventType.INSERT) {
                    printColumn(rowData.getAfterColumnsList());
                } else {
                    System.out.println("-------> before");
                    printColumn(rowData.getBeforeColumnsList());
                    System.out.println("-------> after");
                    printColumn(rowData.getAfterColumnsList());
                }
            }
        }
    }
 
    private static void printColumn( List columns) {
        for (Column column : columns) {
            System.out.println(column.getName() + " : " + column.getValue() + "    update=" + column.getUpdated());
        }
    }
}

 

4.代码执行后如下

5.在数据库中创建一张表，然后修改数据，在eclipse中查看监听的信息

CREATE TABLE `test1` (
  `uid` int(4) NOT NULL AUTO_INCREMENT,
  `name` varchar(10) NOT NULL,
  PRIMARY KEY (`uid`)
) ENGINE=InnoDB AUTO_INCREMENT=3 DEFAULT CHARSET=utf8;