SpringBoot使用shardingsphere实现分表
在Spring Boot项目中使用ShardingSphere实现数据分表,你需要做以下几个步骤:
- 添加ShardingSphere和数据库驱动的依赖到你的
pom.xml
或build.gradle
文件中。 - 配置数据源和ShardingSphere的配置。
- 启动你的Spring Boot应用并测试分表功能。
以下是一个简单的例子:
pom.xml依赖
<dependencies>
<!-- ShardingSphere 依赖 -->
<dependency>
<groupId>org.apache.shardingsphere</groupId>
<artifactId>shardingsphere-jdbc-core-spring-boot-starter</artifactId>
<version>您的ShardingSphere版本</version>
</dependency>
<!-- 数据库驱动,以MySQL为例 -->
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>您的数据库驱动版本</version>
</dependency>
</dependencies>
application.yml配置
spring:
shardingsphere:
datasource:
names: ds0,ds1
ds0:
url: jdbc:mysql://localhost:3306/actual_database_0?useSSL=false
username: root
password:
type: com.zaxxer.hikari.HikariDataSource
ds1:
url: jdbc:mysql://localhost:3306/actual_database_1?useSSL=false
username: root
password:
type: com.zaxxer.hikari.HikariDataSource
sharding:
tables:
t_order:
actualDataNodes: ds${0..1}.t_order_${0..1}
databaseStrategy:
standard:
shardingColumn: user_id
shardingAlgorithmName: tableShardingAlgorithm
tableStrategy:
standard:
shardingColumn: order_id
shardingAlgorithmName: tableShardingAlgorithm
shardingAlgorithms:
tableShardingAlgorithm:
type: INLINE
props:
algorithm-expression: t_order_${user_id % 2}
props:
sql:
show: true
Java配置
@Configuration
public class ShardingSphereConfig {
@Bean
public DataSource dataSource() {
return ShardingSphereDataSourceFactory.createDataSource(createDataSourceMap(), createShardingRuleConfig(), new Properties());
}
private Map<String, DataSource> createDataSourceMap() {
// 配置数据源
Map<String, DataSource> result = new HashMap<>();
result.put("ds0", ...);
result.put("ds1", ...);
return result;
}
private ShardingRuleConfiguration createShardingRuleConfig() {
// 配置分表规则
ShardingRuleConfiguration result
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