Spring Boot 整合 SardingSphere (精确分表策略)

概要：

• 如果按照application.properties的配置，只能根据某个列进行区分规则，那么可以通过配置类来达到更精确的目的

• 其他代码 参考：https://www.cnblogs.com/yi1036943655/p/15700170.html

application.properties

# 精确分表策略
spring.shardingsphere.sharding.tables.s_user.table-strategy.standard.sharding-column=age
spring.shardingsphere.sharding.tables.s_user.table-strategy.standard.precise-algorithm-class-name=com.sharding.demo.config.TableShardingAlgorithm

TableShardingAlgorithm

package com.sharding.demo.config;

import lombok.extern.slf4j.Slf4j;
import org.apache.shardingsphere.api.sharding.standard.PreciseShardingAlgorithm;
import org.apache.shardingsphere.api.sharding.standard.PreciseShardingValue;

import java.util.Collection;

@Slf4j
public class TableShardingAlgorithm implements PreciseShardingAlgorithm<String> {

    @Override
    public String doSharding(Collection<String> availableTargetNames, PreciseShardingValue<String> preciseShardingValue) {
        try{
            log.info("preciseShardingValue:{},column:{}",preciseShardingValue.getValue(),preciseShardingValue.getColumnName());
            for (String each : availableTargetNames) {
                log.info("each:" + each);
            }
            // 返回 就是最后落实的表
            return "s_user0";
        } catch (Exception e){
            e.printStackTrace();
        }
        throw new IllegalArgumentException();
    }
}