chenqian56131/spring-boot-starter-canal

A convenient canal starter for spring boot that allows to listen to the event(s) which you are interested by implementing interface or annotation.

spring-boot-starter-canal

canal starter

eg(annotation):

---

@CanalEventListener
public class MyEventListener {

    @InsertListenPoint
    public void onEvent(CanalEntry.EventType eventType, CanalEntry.RowData rowData) {
        //do something...
    }

    @UpdateListenPoint
    public void onEvent1(CanalEntry.RowData rowData) {
        //do something...
    }

    @DeleteListenPoint
    public void onEvent3(CanalEntry.EventType eventType) {
        //do something...
    }

    @ListenPoint(destination = "example", schema = "canal-test", table = {"t_user", "test_table"}, eventType = CanalEntry.EventType.UPDATE)
    public void onEvent4(CanalEntry.EventType eventType, CanalEntry.RowData rowData) {
        //do something...
    }
}

eg(interface):

---

@Component
public class MyEventListener2 implements CanalEventListener {
    @Override
    public void onEvent(CanalEntry.EventType eventType, CanalEntry.RowData rowData) {
        //do something...
    }
}

@Component
public class MyEventListener2 implements DmlCanalEventListener {
    @Override
    public void onInsert(CanalEntry.RowData rowData) {
        //do something...
    }

    @Override
    public void onUpdate(CanalEntry.RowData rowData) {
        //do something...
    }

    @Override
    public void onDelete(CanalEntry.RowData rowData) {
        //do something...
    }
}

Config

config	describe
canal.client.instances.{destination}.clusterEnabled	enable cluster mod
canal.client.instances.{destination}.zookeeperAddress	zookeeper address(required when clusterEnabled is true)
canal.client.instances.{destination}.host	canal server host(required when clusterEnabled is false)
canal.client.instances.{destination}.port	canal server port (required when clusterEnabled is false)
canal.client.instances.{destination}.batchSize	size when trying to get messages from server
canal.client.instances.{destination}.acquireInterval	interval of acquiring the messages
canal.client.instances.{destination}.filter	client's subscribe-filter
canal.client.instances.{destination}.userName	user name
canal.client.instances.{destination}.password	password
canal.client.instances.{destination}.retryCount	retry count when error occurred such as IoException.