Redis Jedis 是一个流行的 Java 库,用于与 Redis 数据库交互。它支持并发请求处理,主要通过以下几种方式实现:
import redis.clients.jedis.Jedis;
import redis.clients.jedis.JedisPool;
import redis.clients.jedis.JedisPoolConfig;
public class JedisExample {
public static void main(String[] args) {
JedisPoolConfig poolConfig = new JedisPoolConfig();
poolConfig.setMaxTotal(100); // 最大连接数
poolConfig.setMaxIdle(50); // 最大空闲连接数
poolConfig.setMinIdle(10); // 最小空闲连接数
JedisPool jedisPool = new JedisPool(poolConfig, "localhost", 6379);
try (Jedis jedis = jedisPool.getResource()) {
jedis.set("key", "value");
System.out.println(jedis.get("key"));
} catch (Exception e) {
e.printStackTrace();
} finally {
jedisPool.close();
}
}
}
pipeline()
方法将命令添加到管道中。以下是一个简单的示例:import redis.clients.jedis.Jedis;
import redis.clients.jedis.JedisPipeline;
import redis.clients.jedis.JedisPool;
import redis.clients.jedis.JedisPoolConfig;
public class JedisExample {
public static void main(String[] args) {
JedisPoolConfig poolConfig = new JedisPoolConfig();
poolConfig.setMaxTotal(100);
poolConfig.setMaxIdle(50);
poolConfig.setMinIdle(10);
JedisPool jedisPool = new JedisPool(poolConfig, "localhost", 6379);
try (Jedis jedis = jedisPool.getResource();
JedisPipeline pipeline = jedis.pipelined()) {
pipeline.set("key1", "value1");
pipeline.set("key2", "value2");
pipeline.set("key3", "value3");
pipeline.sync();
} catch (Exception e) {
e.printStackTrace();
} finally {
jedisPool.close();
}
}
}
watch()
、multi()
和 exec()
方法。以下是一个简单的示例:import redis.clients.jedis.Jedis;
import redis.clients.jedis.Transaction;
import redis.clients.jedis.JedisPool;
import redis.clients.jedis.JedisPoolConfig;
public class JedisExample {
public static void main(String[] args) {
JedisPoolConfig poolConfig = new JedisPoolConfig();
poolConfig.setMaxTotal(100);
poolConfig.setMaxIdle(50);
poolConfig.setMinIdle(10);
JedisPool jedisPool = new JedisPool(poolConfig, "localhost", 6379);
try (Jedis jedis = jedisPool.getResource()) {
jedis.watch("key");
Transaction transaction = jedis.multi();
transaction.set("key", "value");
transaction.set("key2", "value2");
transaction.exec();
} catch (Exception e) {
e.printStackTrace();
} finally {
jedisPool.close();
}
}
}
通过使用连接池、管道和事务,Jedis 能够有效地处理并发请求。在实际应用中,你可以根据具体需求选择合适的方法来优化性能。