1 概述
mysql、MongoDB数据变动监听分发 本项目意在简化监听mysql、MongoDB数据库的不同表的各种数据变动 项目依赖redis,mysql 使用场景：刷新缓存、异构系统...
2 使用方式
从bin-log-distributor-app到client数据分发方式的默认实现为redis，如果要开发基于其他的比如mq，只需要分别实现
bin-log-distributor-pub下的DataPublisher接口与bin-log-distributor-client下的即可
2.1 服务端
服务端是项目中bin-log-distributor-app模块，在mysql-binlog-connector-java基础上提供了监听mysql数据库二进制日志并进行分发的功能
2.1.1 参考配置
# redis地址
spring.redisson.address=redis://192.168.1.204:6379
# mysql日志同步账户,
binaryLog.host = 192.168.1.204
binaryLog.port = 3306
binaryLog.username = aa
binaryLog.password = aa
binaryLog.serverId = 1
# 读取列名，进行映射
spring.datasource.url = jdbc:mysql://${binaryLog.host}:${binaryLog.port}/mysql?autoReconnect=true&useUnicode=true&characterEncoding=utf-8
spring.datasource.username = ${binaryLog.username}
spring.datasource.password = ${binaryLog.password}
spring.datasource.driverClassName = com.mysql.jdbc.Driver
# rabbitmq连接相关信息(如果只有redis客户端可以不需要使用)
spring.rabbit.host = 192.168.1.204
spring.rabbit.port = 5672
spring.rabbit.username = aa
spring.rabbit.password = aa
spring.rabbit.virtualHost = /binlog
2.1.2 启动方式
编译打包项目，直接通过（java -jar）启动bin-log-distributor-app-${version}-SNAPSHOT.jar，可参考spring boot手册
2.2 客户端
2.2.1 redis客户端
2.2.1.1 引入依赖包
<dependency>
<groupId>cn.keking.project</groupId>
<artifactId>bin-log-distributor-client-redis</artifactId>
<version>${version}</version>
</dependency>
2.2.1.2 添加客户端配置
#自动注册客户端(2.1中服务端的地址)
databaseEventServerUrl=http://localhost:8885/client/addAll
#本应用命名
appName=lbt-service-ext-redis
# redis地址
spring.redisson.address=redis://192.168.1.204:6379
2.2.1.3 写handler，实现 DatabaseEventHandler 接口，并加上注解 @HandleDatabaseEven
/**
* LockLevel为保持顺序的级别,None为默认
* TABLE -> 同表按顺序执行
* COLUMN -> 某列值一致的按顺序执行
* NONE -> 无序
*/
@Service
@HandleDatabaseEvent(database = "Rana_G", table = "PTP_PROJ_REP_HIS", events = {DatabaseEvent.UPDATE_ROWS, DatabaseEvent.DELETE_ROWS},lockLevel = LockLevel.TABLE)
public class ProjRepHisDatabaseEventHandler implements DatabaseEventHandler {
private static final Logger logger = LoggerFactory.getLogger(ProjRepHisDatabaseEventHandler.class);
@Override
public void handle(EventBaseDTO eventBaseDTO) {
logger.info(JSON.toJSONString(eventBaseDTO));
// todo 在这里写相关逻辑
}
}
2.2.1.4 启动监听，当2里的handler是由容器管理时需要通过registerHandler(projRepHisDatabaseEventHandler)手动注册，如果不需要容器管理，可以直接通过autoScanHandler()自动扫描添加
@Component
public class DatabaseEventListener {
private static Logger logger = LoggerFactory.getLogger(DatabaseEventListener.class);
@Autowired
private RedissonClient redissonClient;
@Value("#{env.databaseEventServerUrl}")
private String serverUrl;
@Value("#{env.appName}")
private String appName;
//将第3步里的service注入
@Autowired
private ProjRepHisDatabaseEventHandler projRepHisDatabaseEventHandler;
@PostConstruct
public void start() {
//初始化订阅的实现
DataSubscriber dataSubscriber = new DataSubscriberRedisImpl(redissonClient);
new BinLogDistributorClient(appName, dataSubscriber)
//在binlog中注册handler
.setQueueType(ClientInfo.QUEUE_TYPE_REDIS)
.registerHandler(projRepHisDatabaseEventHandler)
.setServerUrl(serverUrl).autoRegisterClient().start();
}
}
2.2.2 rabbitmq客户端
2.2.2.1 引入依赖包
<dependency>
<groupId>cn.keking.project</groupId>
<artifactId>bin-log-distributor-client-rabbitmq</artifactId>
<version>${version}</version>
</dependency>
2.2.2.2 添加客户端配置
#自动注册客户端(2.1中服务端的地址)
databaseEventServerUrl=http://localhost:8885/client/addAll
#本应用命名
appName=lbt-service-ext-rabbit
# redis地址(rabbitmq实现也要使用redis作为分布式锁)
spring.redisson.address=redis://192.168.1.204:6379
# RabbitMQ配置
spring.rabbit.host=192.168.1.204
spring.rabbit.port=5672
spring.rabbit.username=aa
spring.rabbit.password=aa
spring.rabbit.virtualHost=/binlog
spring.rabbit.apiUrl=http://192.168.1.204:15672/api/
2.2.2.3 写handler，实现 DatabaseEventHandler 接口，并加上注解 @HandleDatabaseEven
/**
* LockLevel为保持顺序的级别,None为默认
* TABLE -> 同表按顺序执行
* COLUMN -> 某列值一致的按顺序执行
* NONE -> 无序
*/
@Service
@HandleDatabaseEvent(database = "Rana_G", table = "PTP_PROJ_REP_HIS", events = {DatabaseEvent.UPDATE_ROWS, DatabaseEvent.DELETE_ROWS},lockLevel = LockLevel.TABLE)
public class ProjRepHisDatabaseEventHandler implements DatabaseEventHandler {
private static final Logger logger = LoggerFactory.getLogger(ProjRepHisDatabaseEventHandler.class);
@Override
public void handle(EventBaseDTO eventBaseDTO) {
logger.info(JSON.toJSONString(eventBaseDTO));
// todo 在这里写相关逻辑
}
}
2.2.2.4 启动监听，当2里的handler是由容器管理时需要通过registerHandler(projRepHisDatabaseEventHandler)手动注册，如果不需要容器管理，可以直接通过autoScanHandler()自动扫描添加
@Component
public class DatabaseEventListener {
private static Logger logger = LoggerFactory.getLogger(DatabaseEventListener.class);
@Autowired
private RedissonClient redissonClient;
@Value("#{env.databaseEventServerUrl}")
private String serverUrl;
@Value("#{env.appName}")
private String appName;
//将第3步里的service注入
@Autowired
private ProjRepHisDatabaseEventHandler projRepHisDatabaseEventHandler;
//org.springframework.amqp.rabbit.connection.ConnectionFactory 自行创建spring bean
@Autowired
private ConnectionFactory connectionFactory;
//com.rabbitmq.http.client.Client 自行创建spring bean
@Autowired
private Client rabbitHttpClient;
@PostConstruct
public void start() {
//初始化订阅的实现
DataSubscriber dataSubscriber = new DataSubscriberRabbitMQImpl(connectionFactory, rabbitHttpClient, redissonClient);
new BinLogDistributorClient(appName, dataSubscriber)
//默认为redis实现，使用mq实现这里一定要指定QueueType
.setQueueType(ClientInfo.QUEUE_TYPE_RABBIT)
.registerHandler(projRepHisDatabaseEventHandler)
.setServerUrl(serverUrl).autoRegisterClient().start();
}
}
2.3 前端管理模块
前端管理服务模块是基于vue的管理各个应用监听状况的管理界面
