binlog+canel windows服務器下mysql數據的部署過程

1.開啓mysql的binlog功能，並配置binlog模式爲row。

  1.1windos下修改mysql的my.ini文件（該文件在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是一個隱藏文件，需要顯示隱藏文件才能找得到）

 1.2修改my.ini增加如下配置

1. log-bin=mysql-bin #添加這一行就ok

2. binlog-format=ROW #選擇row模式

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

1.3在mysql中 配置canal數據庫管理用戶，配置相應權限（repication權限）

       

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

 1.4重啓mysql服務

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

 

2.1解壓後的目錄如下

2.2修改instance.properties文件的配置

# 主庫的IP地址和端口號，目前是我本機的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新增了數據庫的用戶信息canel

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

#默認數據庫，我自己創建的一個庫20190426
canal.instance.defaultDatabaseName = 20190426  
# enable druid Decrypt database password
canal.instance.enableDruid=false

2.3 執行bin目錄下的startup.bat，雙擊執行

2.4執行控制檯如下

3.創建監聽的maven工程 

添加POM依賴   

 <dependency>

    <groupId>com.alibaba.otter</groupId>

    <artifactId>canal.client</artifactId>

    <version>1.0.12</version>

   </dependency>

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[]) {
        // 創建鏈接
        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); // 獲取指定數量的數據
                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); // 提交確認
                // connector.rollback(batchId); // 處理失敗, 回滾數據
            }
 
            System.out.println("empty too many times, exit");
        } finally {
            connector.disconnect();
        }
    }
 
    private static void printEntry(List<Entry> 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<Column> columns) {
        for (Column column : columns) {
            System.out.println(column.getName() + " : " + column.getValue() + "    update=" + column.getUpdated());
        }
    }
}

 

4.代碼執行後如下

5.在數據庫中創建一張表，然後修改數據，在eclipse中查看監聽的信息

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;