springboot集合sharding-jdbc做读写分离

最新推荐文章于 2022-08-23 11:35:00 发布

原创最新推荐文章于 2022-08-23 11:35:00 发布 · 140 阅读

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#java #mysql

1.引入pom 文件依赖

<dependency>
    <groupId>io.shardingjdbc</groupId>
    <artifactId>sharding-jdbc-core</artifactId>
    <version>2.0.3</version>
</dependency>

2.添加两个config配置文件

@Data
@ConfigurationProperties(prefix = "sharding.jdbc")
public class ShardingMasterSlaveConfig {

	// 存放本地多个数据源
	private Map<String, HikariDataSource> dataSources = new HashMap<>();

	private MasterSlaveRuleConfiguration masterSlaveRule;
}

@Configuration
@EnableConfigurationProperties(ShardingMasterSlaveConfig.class)
@Log4j2
// 读取ds_master主数据源和读写分离配置
@ConditionalOnProperty({"sharding.jdbc.data-sources.ds_master.jdbc-url",
        "sharding.jdbc.master-slave-rule.master-data-source-name"})
public class ShardingDataSourceConfig {

    @Autowired
    private ShardingMasterSlaveConfig shardingMasterSlaveConfig;

    @Bean
    public DataSource masterSlaveDataSource() throws SQLException {
        final Map<String, DataSource> dataSourceMap = Maps.newHashMap();
        dataSourceMap.putAll(shardingMasterSlaveConfig.getDataSources());
        final Map<String, Object> newHashMap = Maps.newHashMap();
        // 创建 MasterSlave数据源
        DataSource dataSource = MasterSlaveDataSourceFactory.createDataSource(dataSourceMap,
                shardingMasterSlaveConfig.getMasterSlaveRule(), newHashMap);
        log.info("masterSlaveDataSource config complete");
        return dataSource;
    }
}

3.最后配置yml 文件

#shardingjdbc配置
sharding:
  jdbc:
    data-sources:
      ###配置第一个从数据库
      ds_slave_0:
        jdbc-url: jdbc:mysql://192.168.200.97:3308/account_center?useUnicode=true&characterEncoding=utf-8&useSSL=true
        driver-class-name: com.mysql.jdbc.Driver
        username: root
        password: 123456
      ###主数据库配置
      ds_master:
        jdbc-url: jdbc:mysql://192.168.200.97:3307/account_center?useUnicode=true&characterEncoding=utf-8&useSSL=true
        driver-class-name: com.mysql.jdbc.Driver
        username: root
        password: qwerty
    ###配置读写分离
    master-slave-rule:
      ###配置从库选择策略，提供轮询与随机，这里选择用轮询
      load-balance-algorithm-type: round_robin
      ####指定从数据库
      slave-data-source-names: ds_slave_0
      name: ds_ms
      ####指定主数据库
      master-data-source-name: ds_master