Redis客户端开发包：Jedis学习-高级应用

事务

Jedis中事务的写法是将redis操作写在事物代码块中，如下所示，multi与exec之间为具体的事务。

jedis.watch (key1, key2, ...);
Transaction t = jedis.multi();
t.set("foo", "bar");
t.exec();

另外，在事务内部，是不能通过Jedis对象去获取值的，不过可以通过Transaction对象去获取，如下写法：

package cn.edu.hdu.jedisdemo;

import java.util.Set;

import redis.clients.jedis.Jedis;
import redis.clients.jedis.JedisPool;
import redis.clients.jedis.JedisPoolConfig;
import redis.clients.jedis.Response;
import redis.clients.jedis.Transaction;

public class App {
    public static void main(String[] args) {
        JedisPool pool = new JedisPool(new JedisPoolConfig(), "localhost");
        // / Jedis implements Closable. Hence, the jedis instance will be
        // auto-closed after the last statement.
        try (Jedis jedis = pool.getResource()) {
            // / ... do stuff here ... for example

            Transaction t = jedis.multi();
            t.set("fool", "bar");
            //jedis.get("fool");//报错，Cannot use Jedis when in Multi. Please use Transation or reset jedis state.
            Response result1 = t.get("fool");

            t.zadd("foo", 1, "barowitch");
            t.zadd("foo", 0, "barinsky");
            t.zadd("foo", 0, "barikoviev");
            Response> sose = t.zrange("foo", 0, -1); 
            t.exec(); // dont forget it

            String foolbar = result1.get(); // use Response.get() to retrieve things from a Response
            int soseSize = sose.get().size(); // on sose.get() you can directly call Set methods!

            // List