Redis Jedis 是一個流行的 Java 庫,用于與 Redis 數據庫交互。它支持并發請求處理,主要通過以下幾種方式實現:
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); // 最大連接數
poolConfig.setMaxIdle(50); // 最大空閑連接數
poolConfig.setMinIdle(10); // 最小空閑連接數
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()
方法將命令添加到管道中。以下是一個簡單的示例: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。以下是一個簡單的示例: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();
}
}
}
通過使用連接池、管道和事務,Jedis 能夠有效地處理并發請求。在實際應用中,你可以根據具體需求選擇合適的方法來優化性能。