ERR EXEC without MULTI - Jedis

Question

我正在学习jedis，我无法准确找出这段代码中的问题。任何人都可以帮助我。异常发生在声明tx.exec（）

public class JedisFactory { 

public static void main (String [] args){ 
    JedisPool pool = new JedisPool(new JedisPoolConfig(), "127.0.0.1", 6379); 
    Jedis jedis = pool.getResource(); 

    Pipeline pipeline = jedis.pipelined(); 
    for(int i=0; i < 1000 ; i++){ 
     pipeline.hincrBy("Id", i+"", i); 
    } 
    pipeline.exec();   
    pool.returnResource(jedis); 

    jedis = pool.getResource(); 
    Transaction tx = jedis.multi(); 
    Response<Map<String,String>> map = tx.hgetAll("Id"); 
    tx.hincrBy("Id","2", 1); 
    **tx.exec();** 
    //Map<String,String> map1 = jedis.hgetAll("Id"); 

    pool.returnResource(jedis); 
    pool.destroy(); 
} 
} 
Exception in thread "main" redis.clients.jedis.exceptions.JedisDataException: ERR EXEC without MULTI 
    at redis.clients.jedis.Protocol.processError(Protocol.java:54) 
    at redis.clients.jedis.Protocol.process(Protocol.java:61) 
    at redis.clients.jedis.Protocol.read(Protocol.java:122) 
    at redis.clients.jedis.Connection.getAll(Connection.java:207) 
    at redis.clients.jedis.BinaryTransaction.exec(BinaryTransaction.java:23) 
    at com.work.JedisFactory.main(JedisFactory.java:30) 

Answer 1

在for循环之前添加pipeline.multi（）解决了问题。但修复之前在其他一些行中抛出的异常。

Answer 2

我想你应该使用pipeline.execute（）而不是pipeline.exec（），至少我是这样使用它，并且没问题。