spring-data-redis高级使用
1 StringRedisTemplate 继承 RedisTemplate
public class StringRedisTemplate extends RedisTemplate {
/**
* Constructs a new StringRedisTemplate instance. {@link #setConnectionFactory(RedisConnectionFactory)}
* and {@link #afterPropertiesSet()} still need to be called.
*/
public StringRedisTemplate() {
RedisSerializer stringSerializer = new StringRedisSerializer();
setKeySerializer(stringSerializer);
setValueSerializer(stringSerializer);
setHashKeySerializer(stringSerializer);
setHashValueSerializer(stringSerializer);
}
2 RedisTemplate
public void delete(K key) {
final byte[] rawKey = rawKey(key);
execute(new RedisCallback
3 RedisConnection继承RedisCommands
public interface RedisConnection extends RedisCommands {
.........
}
4 RedisCommands继承所有命令，拥有所有的redis操作命令
public interface RedisCommands extends RedisKeyCommands, RedisStringCommands, RedisListCommands, RedisSetCommands,
RedisZSetCommands, RedisHashCommands, RedisTxCommands, RedisPubSubCommands, RedisConnectionCommands,
RedisServerCommands, RedisScriptingCommands, RedisGeoCommands, HyperLogLogCommands {
/**
* 'Native' or 'raw' execution of the given command along-side the given arguments. The command is executed as is,
* with as little 'interpretation' as possible - it is up to the caller to take care of any processing of arguments or
* the result.
*
* @param command Command to execute
* @param args Possible command arguments (may be null)
* @return execution result.
*/
Object execute(String command, byte[]... args);
}
那么只要拥有RedisConnection就能执行redis客户端的所有命令。
5 编写RedisServiceExtend
/**
* @Title: RedisServiceExtend
* @Description: redis 扩展
* @author chy
* @date 2018/5/8 8:27
*/
@Repository
public class RedisServiceExtend {
private static String redisCode = "utf-8";
@Autowired
RedisTemplate redisTemplate;
public RedisTemplate getRedisTemplate() {
return redisTemplate;
}
public void setRedisTemplate(RedisTemplate redisTemplate) {
this.redisTemplate = redisTemplate;
}
/**
* 统计bit位为1的总数
* @param key
*/
public long bitCount(final String key) {
return redisTemplate.execute(new RedisCallback() {
@Override
public Long doInRedis(RedisConnection connection) throws DataAccessException {
long result = 0;
result = connection.bitCount(key.getBytes());
return result;
}
});
}
/**
* 批处理命令
* @param callback
* @return
*/
public List
5 编写测试用例
/**
* @Title: DemoRedisTransactionTest
* @Description: redis 事物测试
* @author chy
* @date 2018/8/1 14:46
*/
@RunWith(SpringRunner.class)
@SpringBootTest
public class DemoRedisTransactionTest {
@Autowired
RedisServiceExtend redisServiceExtend;
/**
* 测试 事物
* @return
*/
@Test
public void multi() {
List
RedisConnection 是不是很强大可以实现redis的任意命令