redis事务处理

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当前使用的redis版本

#redis-cli  -v
redis-cli 2.6.4

redis 192.168.1.53:6379> multi
OK
redis 192.168.1.53:6379> incr foo
QUEUED
redis 192.168.1.53:6379> set t1 1
QUEUED
redis 192.168.1.53:6379> exec
1) (integer) 2
2) OK

Jedis jedis = new Jedis("192.168.1.53", 6379);
Transaction tx = jedis.multi();
tx.incr( "foo");
tx.set( "t1", "2");
List<Object> result = tx.exec();

if (result == null || result.isEmpty()) {
     System. err.println( "Transaction error...");
     return ;
}

for (Object rt : result) {
     System. out.println(rt.toString());
}

redis 192.168.1.53:6379> multi
OK
redis 192.168.1.53:6379> incr foo
QUEUED
redis 192.168.1.53:6379> set ff 11 22
(error) ERR wrong number of arguments for ‘set‘ command
redis 192.168.1.53:6379> exec
1) (integer) 4

+++++++++++命令+++++++++++

redis 192.168.1.53:6379> multi
OK
redis 192.168.1.53:6379> set a 11
QUEUED
redis 192.168.1.53:6379> lpop a
QUEUED
redis 192.168.1.53:6379> exec
1) OK
2) (error) ERR Operation against a key holding the wrong kind of value

Jedis jedis = new Jedis("192.168.1.53", 6379);
Transaction tx = jedis.multi();
tx.set( "t1", "2");
tx.lpop( "t1");
List<Object> result = tx.exec();

if (result == null || result.isEmpty()) {
    System. err.println( "Transaction error...");
    return ;
}

for (Object rt : result) {
    System. out.println(rt.toString());
}

redis 192.168.1.53:6379> set foo 1
OK
redis 192.168.1.53:6379> multi
OK
redis 192.168.1.53:6379> incr foo
QUEUED
redis 192.168.1.53:6379> discard
OK
redis 192.168.1.53:6379> get foo
"1"

redis 192.168.1.53:6379> watch foo
OK
redis 192.168.1.53:6379> set foo 5
OK
redis 192.168.1.53:6379> multi
OK
redis 192.168.1.53:6379> set foo 9
QUEUED

+++++++++++暂停（执行完第二条命令才执行下面的）+++++++++++

redis 192.168.1.53:6379> exec
(nil)
redis 192.168.1.53:6379> get foo
"8"

+++++++++++第二条命令+++++++++++

redis 192.168.1.53:6379> set foo 8
OK

Jedis jedis = new Jedis("192.168.1.53", 6379);
jedis.watch( "foo");
Transaction tx = jedis.multi();
tx.incr( "foo");

List<Object> result = tx.exec();          //运行时在这边打断点，然后通过命令行改变foo的值
if (result == null || result.isEmpty()) {
    System. err.println( "Transaction error...");
     return;
}
for (Object rt : result) {
     System. out.println(rt.toString());
}

redis事务处理,布布扣,bubuko.com

redis事务处理

标签：style   color   java   使用   os   io   for   ar   

原文地址：http://my.oschina.net/OutOfMemory/blog/300173