Spring Data Redis(Repositories-Keyspaces)

最新推荐文章于 2022-12-27 19:59:02 发布

翻译最新推荐文章于 2022-12-27 19:59:02 发布 · 2.4k 阅读

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#spring #redis #spring-data-redis

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本文介绍如何使用Spring Data Redis配置Keyspaces，通过自定义配置类或注解来设置RedisHash的真实key前缀，以实现更灵活的数据组织方式。

Keyspaces

Keyspaces 定义了前缀，这些前缀被用来创建Redis Hash的真正key。默认情况下前缀被设定为getClass().getName()。这个默认值可以被修改，通过在整体的根层上添加@RedisHash注解，或编写一个配置类。然而，加注解的keyspace 会覆盖任何其他配置。

Example 11. Keyspace Setup via @EnableRedisRepositories

@Configuration
@EnableRedisRepositories(keyspaceConfiguration = MyKeyspaceConfiguration.class)
public class ApplicationConfig {

  //... RedisConnectionFactory and RedisTemplate Bean definitions omitted

  public static class MyKeyspaceConfiguration extends KeyspaceConfiguration {

    @Override
    protected Iterable<KeyspaceSettings> initialConfiguration() {
      return Collections.singleton(new KeyspaceSettings(Person.class, "persons"));
    }
  }
}

Example 12. Programmatic Keyspace setup

@Configuration
@EnableRedisRepositories
public class ApplicationConfig {

  //... RedisConnectionFactory and RedisTemplate Bean definitions omitted

  @Bean
  public RedisMappingContext keyValueMappingContext() {
    return new RedisMappingContext(
      new MappingConfiguration(
        new MyKeyspaceConfiguration(), new IndexConfiguration()));
  }

  public static class MyKeyspaceConfiguration extends KeyspaceConfiguration {

    @Override
    protected Iterable<KeyspaceSettings> initialConfiguration() {
      return Collections.singleton(new KeyspaceSettings(Person.class, "persons"));
    }
  }
}