javaredis看门狗死锁代码
时间: 2023-10-12 13:21:33 浏览: 94
以下是一个简单的Java Redis看门狗死锁代码示例:
```
import redis.clients.jedis.Jedis;
import redis.clients.jedis.JedisPool;
import redis.clients.jedis.exceptions.JedisConnectionException;
public class RedisWatchDog {
private JedisPool jedisPool;
private Thread watchDogThread;
public RedisWatchDog(String host, int port) {
jedisPool = new JedisPool(host, port);
}
public void startWatchDog() {
watchDogThread = new Thread(() -> {
Jedis jedis = null;
try {
jedis = jedisPool.getResource();
while (true) {
jedis.set("watchdog", "1", "NX", "EX", 10);
Thread.sleep(5000);
}
} catch (InterruptedException e) {
Thread.currentThread().interrupt();
} catch (JedisConnectionException e) {
if (jedis != null) {
jedis.close();
}
jedis = null;
} finally {
if (jedis != null) {
jedis.close();
}
}
});
watchDogThread.start();
}
public void stopWatchDog() throws InterruptedException {
if (watchDogThread != null) {
watchDogThread.interrupt();
watchDogThread.join();
}
}
}
```
在此示例中,我们创建了一个RedisWatchDog类,该类使用Jedis库与Redis服务器通信并设置一个名为“watchdog”的键。该类还启动了一个名为“watchDogThread”的线程,该线程每5秒钟将此键设置为“1”。如果Redis连接失败,则线程将关闭当前连接并等待重新连接。此方法可确保在不断地进行Redis操作时,不会发生死锁。
要使用此类,只需执行以下操作:
```
RedisWatchDog redisWatchDog = new RedisWatchDog("localhost", 6379);
redisWatchDog.startWatchDog();
// Perform Redis operations here
redisWatchDog.stopWatchDog();
```
首先,我们创建一个RedisWatchDog实例,并使用Redis服务器的主机名和端口号进行初始化。然后,我们使用startWatchDog()方法启动看门狗线程,并在其中执行Redis操作。最后,我们使用stopWatchDog()方法停止看门狗线程。
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