redis 管道 通讯

package com.irwin.redis;
 
import java.util.Arrays;
import java.util.List;
 
import org.junit.Test;
 
import redis.clients.jedis.Jedis;
import redis.clients.jedis.JedisPoolConfig;
import redis.clients.jedis.JedisShardInfo;
import redis.clients.jedis.Pipeline;
import redis.clients.jedis.ShardedJedis;
import redis.clients.jedis.ShardedJedisPipeline;
import redis.clients.jedis.ShardedJedisPool;
import redis.clients.jedis.Transaction;
 
public class RedisConnectKindsTests {
Jedis jedis  = new Jedis("192.168.56.101", 6379);
 
//普通同步方式
    //最简单和基础的调用方式，每次执行命令后都可以返回结果，标记是否成功
@Test
public void testNormal(){
 
long start = System.currentTimeMillis();
    for (int i = 0; i < 5; i++) {
        String result = jedis.set("n" + i, "n" + i);
        System.out.println(result);
    }
    long end = System.currentTimeMillis();
    System.out.println("Simple SET: " + ((end - start)/1000.0) + " seconds");
    jedis.disconnect();
}
 
//事务方式
//保障一个client发起的事务中的命令可以连续的执行，而中间不会插入其他client的命令
//调用jedis.watch(…)方法来监控key，如果调用后key值发生变化，则整个事务会执行失败。
//另外，事务中某个操作失败，并不会回滚其他操作。这一点需要注意。还有，我们可以使用discard()方法来取消事务。
@Test
public void test2Transactions(){
long start = System.currentTimeMillis();
Transaction tx = jedis.multi();
for (int i = 0; i < 10; i++) {
tx.set("t"+i, "t"+i);
}
System.out.println(jedis.watch("t1","t2"));
 
//tx.discard();
List<Object> results = tx.exec();
long end = System.currentTimeMillis();
jedis.disconnect();
}
 
//管道
//要采用异步方式，一次发送多个指令，不同步等待其返回结果
@Test
public void test3Pipelined(){
Pipeline pipeline = jedis.pipelined();
for (int i = 0; i < 10; i++) {
pipeline.set("p"+i, "p"+i);
}
List<Object> results = pipeline.syncAndReturnAll();
for (Object object : results) {
System.out.println(object);
}
jedis.disconnect();
}
 
//管道中调用事务
//Jedis提供的方法而言，是可以做到在管道中使用事务
@Test
public void test4combPipelineTrans() {
Pipeline pipeline = jedis.pipelined();
pipeline.multi();
 
for (int i = 0; i < 10; i++) {
pipeline.set("" + i, "" + i);
}
 
List<Object> results = pipeline.syncAndReturnAll();
jedis.disconnect();
}
 
//分布式直连同步调用
//分布式直接连接，并且是同步调用，每步执行都返回执行结果。类似地，还有异步管道调用
@Test
public void test4ShardNormal(){
List<JedisShardInfo> shards = Arrays.asList(
new JedisShardInfo("192.168.56.101", 6379),
new JedisShardInfo("192.168.56.101", 6179)
);
 
ShardedJedis sharding = new ShardedJedis(shards);
 
for (int i = 0; i < 10; i++) {
String result = sharding.set("sn" + i, "n" + i);
System.out.println(result);
}
sharding.disconnect();
}
 
//分布式直连异步调用
@Test
public void test6shardpipelined() {
List<JedisShardInfo> shards = Arrays.asList(
new JedisShardInfo("192.168.56.101", 6379),
new JedisShardInfo("192.168.56.101", 6179)
);
 
    ShardedJedis sharding = new ShardedJedis(shards);
 
    ShardedJedisPipeline pipeline = sharding.pipelined();
    long start = System.currentTimeMillis();
    for (int i = 0; i < 100000; i++) {
        pipeline.set("sp" + i, "p" + i);
    }
    List<Object> results = pipeline.syncAndReturnAll();
    long end = System.currentTimeMillis();
    System.out.println("Pipelined@Sharing SET: " + ((end - start)/1000.0) + " seconds");
 
    sharding.disconnect();
}
 
//分布式连接池同步调用
//分布式调用代码是运行在线程中，那么上面两个直连调用方式就不合适了，
//因为直连方式是非线程安全的，这个时候，你就必须选择连接池调用
@Test
public void test7shardSimplePool() {
List<JedisShardInfo> shards = Arrays.asList(
new JedisShardInfo("192.168.56.101", 6379),
new JedisShardInfo("192.168.56.101", 6179)
);
 
    ShardedJedisPool pool = new ShardedJedisPool(new JedisPoolConfig(), shards);
 
    ShardedJedis one = pool.getResource();
 
    long start = System.currentTimeMillis();
    for (int i = 0; i < 10; i++) {
        String result = one.set("spn" + i, "n" + i);
        System.out.println(result);
    }
    long end = System.currentTimeMillis();
    pool.returnResource(one);
    System.out.println("Simple@Pool SET: " + ((end - start)/1000.0) + " seconds");
 
    pool.destroy();
}
 
//分布式连接池异步调用
@Test
public void test8shardPipelinedPool() {
List<JedisShardInfo> shards = Arrays.asList(
new JedisShardInfo("192.168.56.101", 6379),
new JedisShardInfo("192.168.56.101", 6179)
);
 
    ShardedJedisPool pool = new ShardedJedisPool(new JedisPoolConfig(), shards);
 
    ShardedJedis one = pool.getResource();
 
    ShardedJedisPipeline pipeline = one.pipelined();
 
    long start = System.currentTimeMillis();
    for (int i = 0; i < 100000; i++) {
        pipeline.set("sppn" + i, "n" + i);
    }
    List<Object> results = pipeline.syncAndReturnAll();
    long end = System.currentTimeMillis();
    pool.returnResource(one);
    System.out.println("Pipelined@Pool SET: " + ((end - start)/1000.0) + " seconds");
    pool.destroy();
}
}