配置文件展示

shardingsphere:
  props:
    sql-show: false
  datasource:
    names:datacenter1,datacenter2,datacenter3
  rules:
    sharding:
      tables:
           shape:
             actual-data-nodes: datacenter$->{1..3}.shape$->{0..7}
               key-generate-strategy:
                column: id
                key-generator-name: snowflake
           table-strategy:
             hint:
                sharding-algorithm-name: myTest       
        sharding-algorithms:
        myTest:
          type: CLASS_BASE
          props:
              strategy: hint
              algorithmClassName: com.config.CustomDataSourceSelector

 com.config.CustomDataSourceSelector如下所示

public class CustomDataSourceSelector  implements HintShardingAlgorithm<Integer> {
    @Override
    public Collection<String> doSharding(Collection<String> availableTargetNames, HintShardingValue<Integer> shardingValue) {
        Collection<Integer> values = shardingValue.getValues();
        Collection<String> dbs= Lists.newArrayList();
        for(Integer one: values){
            availableTargetNames.forEach(db->{
                if(db.endsWith(one.toString())){
                    dbs.add(db);
                }
            });
        }
        return dbs;
    }

    @Override
    public Properties getProps() {
        return null;
    }

    @Override
    public void init(Properties properties) {

    }
}

 测试类：

@Test
public void test() {
    //创建HintManager示例
    HintManager hintManager = HintManager.getInstance();
 
    //配置分表路由
    //hintManager.addTableShardingValue("shape", 1);
    //配置分库路由
    hintManager.addDatabaseShardingValue("datacenter", 0);

   // sql查询数据库
    //关闭强制路由
    hintManager.close();
}

结果这里的sql查询并没有走datacenter0。经过排查

解决方式：

hintManager.addDatabaseShardingValue("shape", 0);

hintManager.addDatabaseShardingValue("shape", 0); 这里的还是得用逻辑表名才可以。