sharding-jdbc分库分表

1、读写分离

server.port=8084

mybatis.config-location=classpath:META-INF/mybatis-config.xml

#数据源名称集合，对应下面数据源配置的名称
spring.shardingsphere.datasource.names=master,slave

# 主数据源
spring.shardingsphere.datasource.master.type=com.alibaba.druid.pool.DruidDataSource
spring.shardingsphere.datasource.master.driver-class-name=com.mysql.jdbc.Driver
spring.shardingsphere.datasource.master.url=jdbc:mysql://localhost:3306/ds_0?characterEncoding=utf-8
spring.shardingsphere.datasource.master.username=root
spring.shardingsphere.datasource.master.password=1234

# 从数据源
spring.shardingsphere.datasource.slave.type=com.alibaba.druid.pool.DruidDataSource
spring.shardingsphere.datasource.slave.driver-class-name=com.mysql.jdbc.Driver
spring.shardingsphere.datasource.slave.url=jdbc:mysql://localhost:3306/ds_1?characterEncoding=utf-8
spring.shardingsphere.datasource.slave.username=root
spring.shardingsphere.datasource.slave.password=1234

# 读写分离配置
spring.shardingsphere.masterslave.load-balance-algorithm-type=round_robin
#最终的数据源名称
spring.shardingsphere.masterslave.name=dataSource
#主库数据源名称
spring.shardingsphere.masterslave.master-data-source-name=master
#从库数据源名称列表，多个逗号分隔
spring.shardingsphere.masterslave.slave-data-source-names=slave

# 显示SQL
spring.shardingsphere.props.sql.show=true

2、分库

server.port=8084

mybatis.config-location=classpath:META-INF/mybatis-config.xml

spring.shardingsphere.datasource.names=ds0,ds1

# 数据源
spring.shardingsphere.datasource.ds0.type=com.alibaba.druid.pool.DruidDataSource
spring.shardingsphere.datasource.ds0.driver-class-name=com.mysql.jdbc.Driver
spring.shardingsphere.datasource.ds0.url=jdbc:mysql://localhost:3306/ds_0?characterEncoding=utf-8
spring.shardingsphere.datasource.ds0.username=root
spring.shardingsphere.datasource.ds0.password=1234

spring.shardingsphere.datasource.ds1.type=com.alibaba.druid.pool.DruidDataSource
spring.shardingsphere.datasource.ds1.driver-class-name=com.mysql.jdbc.Driver
spring.shardingsphere.datasource.ds1.url=jdbc:mysql://localhost:3306/ds_1?characterEncoding=utf-8
spring.shardingsphere.datasource.ds1.username=root
spring.shardingsphere.datasource.ds1.password=1234

# 绑定loudong表所在节点
spring.shardingsphere.sharding.tables.loudong.actual-data-nodes=ds1.loudong

# 绑定user表所在节点
spring.shardingsphere.sharding.tables.user.actual-data-nodes=ds0.user
spring.shardingsphere.sharding.tables.user.key-generator.column=id
spring.shardingsphere.sharding.tables.user.key-generator.type=SNOWFLAKE

3、分表

server.port=8084

mybatis.config-location=classpath:META-INF/mybatis-config.xml

spring.shardingsphere.datasource.names=master

# 数据源
spring.shardingsphere.datasource.master.type=com.alibaba.druid.pool.DruidDataSource
spring.shardingsphere.datasource.master.driver-class-name=com.mysql.jdbc.Driver
spring.shardingsphere.datasource.master.url=jdbc:mysql://localhost:3306/ds_0?characterEncoding=utf-8
spring.shardingsphere.datasource.master.username=root
spring.shardingsphere.datasource.master.password=1234

# 分表配置，配置分表信息，这边用的inline表达式，翻译过来就是master.user_0,master.user_1,master.user_2,master.user_3
spring.shardingsphere.sharding.tables.user.actual-data-nodes=master.user_${0..3}

# 自定义分表算法
#spring.shardingsphere.sharding.tables.user.table-strategy.standard.sharding-column=id
#spring.shardingsphere.sharding.tables.user.table-strategy.standard.precise-algorithm-class-name=com.cxytiandi.sharding.algorithm.MyPreciseShardingAlgorithm

# inline 表达式
#分表的字段，这边用id分表
spring.shardingsphere.sharding.tables.user.table-strategy.inline.sharding-column=id
#分表算法表达式，需符合groovy语法，配置的表达式就是用id进行取模分片
spring.shardingsphere.sharding.tables.user.table-strategy.inline.algorithm-expression=user_${id.longValue() % 4}

4、分表、读写分离

server.port=8084

mybatis.config-location=classpath:META-INF/mybatis-config.xml

spring.shardingsphere.datasource.names=master,slave

# 主数据源
spring.shardingsphere.datasource.master.type=com.alibaba.druid.pool.DruidDataSource
spring.shardingsphere.datasource.master.driver-class-name=com.mysql.jdbc.Driver
spring.shardingsphere.datasource.master.url=jdbc:mysql://localhost:3306/ds_0?characterEncoding=utf-8
spring.shardingsphere.datasource.master.username=root
spring.shardingsphere.datasource.master.password=123456

# 从数据源
spring.shardingsphere.datasource.slave.type=com.alibaba.druid.pool.DruidDataSource
spring.shardingsphere.datasource.slave.driver-class-name=com.mysql.jdbc.Driver
spring.shardingsphere.datasource.slave.url=jdbc:mysql://localhost:3306/ds_1?characterEncoding=utf-8
spring.shardingsphere.datasource.slave.username=root
spring.shardingsphere.datasource.slave.password=123456

# 分表配置
spring.shardingsphere.sharding.tables.user.actual-data-nodes=ds0.user_${0..3}
spring.shardingsphere.sharding.tables.user.table-strategy.inline.sharding-column=id
spring.shardingsphere.sharding.tables.user.table-strategy.inline.algorithm-expression=user_${id.longValue() % 4}

# 读写分离配置
spring.shardingsphere.sharding.master-slave-rules.ds0.master-data-source-name=master
spring.shardingsphere.sharding.master-slave-rules.ds0.slave-data-source-names=slave

# 显示SQL
spring.shardingsphere.props.sql.show=true

5、分库、读写分离

server.port=8084

mybatis.config-location=classpath:META-INF/mybatis-config.xml

spring.shardingsphere.datasource.names=ds0,ds0slave,ds1,ds1slave

# 数据源
spring.shardingsphere.datasource.ds0.type=com.alibaba.druid.pool.DruidDataSource
spring.shardingsphere.datasource.ds0.driver-class-name=com.mysql.jdbc.Driver
spring.shardingsphere.datasource.ds0.url=jdbc:mysql://localhost:3306/ds_0?characterEncoding=utf-8
spring.shardingsphere.datasource.ds0.username=root
spring.shardingsphere.datasource.ds0.password=1234

spring.shardingsphere.datasource.ds0slave.type=com.alibaba.druid.pool.DruidDataSource
spring.shardingsphere.datasource.ds0slave.driver-class-name=com.mysql.jdbc.Driver
spring.shardingsphere.datasource.ds0slave.url=jdbc:mysql://localhost:3306/ds0slave?characterEncoding=utf-8
spring.shardingsphere.datasource.ds0slave.username=root
spring.shardingsphere.datasource.ds0slave.password=1234

spring.shardingsphere.datasource.ds1.type=com.alibaba.druid.pool.DruidDataSource
spring.shardingsphere.datasource.ds1.driver-class-name=com.mysql.jdbc.Driver
spring.shardingsphere.datasource.ds1.url=jdbc:mysql://localhost:3306/ds_1?characterEncoding=utf-8
spring.shardingsphere.datasource.ds1.username=root
spring.shardingsphere.datasource.ds1.password=1234

spring.shardingsphere.datasource.ds1slave.type=com.alibaba.druid.pool.DruidDataSource
spring.shardingsphere.datasource.ds1slave.driver-class-name=com.mysql.jdbc.Driver
spring.shardingsphere.datasource.ds1slave.url=jdbc:mysql://localhost:3306/ds1slave?characterEncoding=utf-8
spring.shardingsphere.datasource.ds1slave.username=root
spring.shardingsphere.datasource.ds1slave.password=1234

# 绑定loudong表所在节点
spring.shardingsphere.sharding.tables.loudong.actual-data-nodes=ds1.loudong

# 绑定user表所在节点
spring.shardingsphere.sharding.tables.user.actual-data-nodes=ds0.user
spring.shardingsphere.sharding.tables.user.key-generator.column=id
spring.shardingsphere.sharding.tables.user.key-generator.type=SNOWFLAKE

# 读写分离
spring.shardingsphere.sharding.master-slave-rules.ds0.master-data-source-name=ds0
spring.shardingsphere.sharding.master-slave-rules.ds0.slave-data-source-names=ds0slave

spring.shardingsphere.sharding.master-slave-rules.ds1.master-data-source-name=ds1
spring.shardingsphere.sharding.master-slave-rules.ds1.slave-data-source-names=ds1slave

6、分库分表

server.port=8084

mybatis.config-location=classpath:META-INF/mybatis-config.xml

spring.shardingsphere.datasource.names=ds0,ds1

# 数据源
spring.shardingsphere.datasource.ds0.type=com.alibaba.druid.pool.DruidDataSource
spring.shardingsphere.datasource.ds0.driver-class-name=com.mysql.jdbc.Driver
spring.shardingsphere.datasource.ds0.url=jdbc:mysql://localhost:3306/ds_0?characterEncoding=utf-8
spring.shardingsphere.datasource.ds0.username=root
spring.shardingsphere.datasource.ds0.password=1234

spring.shardingsphere.datasource.ds1.type=com.alibaba.druid.pool.DruidDataSource
spring.shardingsphere.datasource.ds1.driver-class-name=com.mysql.jdbc.Driver
spring.shardingsphere.datasource.ds1.url=jdbc:mysql://localhost:3306/ds_1?characterEncoding=utf-8
spring.shardingsphere.datasource.ds1.username=root
spring.shardingsphere.datasource.ds1.password=1234

# 分表配置
spring.shardingsphere.sharding.tables.user.actual-data-nodes=ds$->{0..1}.user_$->{0..2}
spring.shardingsphere.sharding.tables.user.table-strategy.inline.sharding-column=id
spring.shardingsphere.sharding.tables.user.table-strategy.inline.algorithm-expression=user_$->{id % 3}
spring.shardingsphere.sharding.tables.user.key-generator.column=id
spring.shardingsphere.sharding.tables.user.key-generator.type=SNOWFLAKE

# 分库配置
spring.shardingsphere.sharding.default-database-strategy.inline.sharding-column=id
spring.shardingsphere.sharding.default-database-strategy.inline.algorithm-expression=ds$->{id % 2}

# 不分库分表的数据源指定
#spring.shardingsphere.sharding.default-data-source-name=ds0

# 广播表，每个节点复制一份，适用于配置类的数据
#spring.shardingsphere.sharding.broadcast-tables=loudong

7、分库分表、读写分离

server.port=8084

mybatis.config-location=classpath:META-INF/mybatis-config.xml

spring.shardingsphere.datasource.names=master0,master0slave,master1,master1slave

# 数据源
spring.shardingsphere.datasource.master0.type=com.alibaba.druid.pool.DruidDataSource
spring.shardingsphere.datasource.master0.driver-class-name=com.mysql.jdbc.Driver
spring.shardingsphere.datasource.master0.url=jdbc:mysql://localhost:3306/ds_0?characterEncoding=utf-8
spring.shardingsphere.datasource.master0.username=root
spring.shardingsphere.datasource.master0.password=1234

spring.shardingsphere.datasource.master0slave.type=com.alibaba.druid.pool.DruidDataSource
spring.shardingsphere.datasource.master0slave.driver-class-name=com.mysql.jdbc.Driver
spring.shardingsphere.datasource.master0slave.url=jdbc:mysql://localhost:3306/ds0slave?characterEncoding=utf-8
spring.shardingsphere.datasource.master0slave.username=root
spring.shardingsphere.datasource.master0slave.password=1234

spring.shardingsphere.datasource.master1.type=com.alibaba.druid.pool.DruidDataSource
spring.shardingsphere.datasource.master1.driver-class-name=com.mysql.jdbc.Driver
spring.shardingsphere.datasource.master1.url=jdbc:mysql://localhost:3306/ds_1?characterEncoding=utf-8
spring.shardingsphere.datasource.master1.username=root
spring.shardingsphere.datasource.master1.password=1234

spring.shardingsphere.datasource.master1slave.type=com.alibaba.druid.pool.DruidDataSource
spring.shardingsphere.datasource.master1slave.driver-class-name=com.mysql.jdbc.Driver
spring.shardingsphere.datasource.master1slave.url=jdbc:mysql://localhost:3306/ds1slave?characterEncoding=utf-8
spring.shardingsphere.datasource.master1slave.username=root
spring.shardingsphere.datasource.master1slave.password=1234

# 分表配置
spring.shardingsphere.sharding.tables.user.actual-data-nodes=ds$->{0..1}.user_$->{0..2}
spring.shardingsphere.sharding.tables.user.table-strategy.inline.sharding-column=id
spring.shardingsphere.sharding.tables.user.table-strategy.inline.algorithm-expression=user_$->{id % 3}
spring.shardingsphere.sharding.tables.user.key-generator.column=id
spring.shardingsphere.sharding.tables.user.key-generator.type=SNOWFLAKE

# 分库配置
spring.shardingsphere.sharding.default-database-strategy.inline.sharding-column=id
spring.shardingsphere.sharding.default-database-strategy.inline.algorithm-expression=ds$->{id % 2}

# 不分库分表的数据源指定
#spring.shardingsphere.sharding.default-data-source-name=ds0

# 广播表，每个节点复制一份，适用于配置类的数据
#spring.shardingsphere.sharding.broadcast-tables=loudong

# 读写分离
spring.shardingsphere.sharding.master-slave-rules.ds0.master-data-source-name=master0
spring.shardingsphere.sharding.master-slave-rules.ds0.slave-data-source-names=master0slave

spring.shardingsphere.sharding.master-slave-rules.ds1.master-data-source-name=master1
spring.shardingsphere.sharding.master-slave-rules.ds1.slave-data-source-names=master1slave

来源：https://my.oschina.net/u/3769440/blog/3133235

标签

Sharding-JDBC