SpringBoot整合ShardingJDBC按时间分表及自动建表
@Configuration
public class ShardingJdbcConfig {
@Bean
public DataSource dataSource() {
// 配置数据源
ShardingDataSource dataSource = ShardingDataSourceFactory.createDataSource(
createDataSourceMap(),
createShardingRule(),
new Properties()
);
return dataSource;
}
private Map<String, DataSource> createDataSourceMap() {
// 创建数据源映射
Map<String, DataSource> result = new HashMap<>();
result.put("ds_0", createDataSource("ds_0"));
// 可以添加更多数据源
return result;
}
private DataSource createDataSource(String dataSourceName) {
// 创建真实的数据源,例如HikariCP
HikariDataSource dataSource = new HikariDataSource();
// 设置数据源属性,例如URL、用户名、密码等
dataSource.setJdbcUrl("jdbc:mysql://localhost:3306/" + dataSourceName);
// ...其他配置
return dataSource;
}
private ShardingRule createShardingRule() {
// 配置分表规则
TableRuleConfiguration tableRuleConfig = new TableRuleConfiguration("t_order", "ds_0.t_order_${date_day}");
tableRuleConfig.setDatabaseShardingStrategyConfig(new InlineShardingStrategyConfiguration("order_id", "ds_${order_id % 2}"));
tableRuleConfig.setTableShardingStrategyConfig(new InlineShardingStrategyConfiguration("order_id", "t_order_${date_day}"));
// 创建分库分表规则
ShardingRuleConfiguration shardingRuleConfig = new ShardingRuleConfiguration();
shardingRuleConfig.getTableRuleConfigs().add(tableRuleConfig);
// 可以添加更多的分表配置
// 添加分库策略
shardingRuleConfig.getBindingTableGroups().add("t_order,t_order_item");
// 添加时间范围策略
shardingRuleConfig.getAllTables().get("t_order_${date_day}").setActualDataNodes("ds_${0..1}.t_order_${date_day}");
// 自动创建表配置
Properties properties = new Properties();
properties.setProperty("sql.show", "true");
// ...其他配置
// 返回ShardingRule实例
return new ShardingRule(shardingRuleConfig, createDataSourceMap().values(), properties);
}
}
这个配置类展示了如何在SpringBoot应用中配置ShardingJDBC来实现按照时间和用户ID进行分表,并且如何配置数据源和自动创建表。这个例子中使用了ShardingJdbcFactory来创建ShardingDataSource,并且展示了如何配置分
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