在Java中，需要每120分钟刷新一次的`assetoken`，并且你想使用Redis作为缓存来存储和管理这个令牌
import redis.clients.jedis.Jedis;
import java.util.concurrent.Executors;
import java.util.concurrent.ScheduledExecutorService;
import java.util.concurrent.TimeUnit;
public class AssetokenManager {
private static final String REDIS_HOST = "localhost";
private static final int REDIS_PORT = 6379;
private static final String ASSETOKEN_KEY = "assetoken";
private static final long TOKEN_EXPIRATION_TIME_MINUTES = 120;
private static final long TOKEN_REFRESH_INTERVAL_MINUTES = TOKEN_EXPIRATION_TIME_MINUTES - 10; // 提前10分钟刷新
private Jedis jedis;
private ScheduledExecutorService scheduler;
public AssetokenManager() {
this.jedis = new Jedis(REDIS_HOST, REDIS_PORT);
this.scheduler = Executors.newScheduledThreadPool(1);
// 初始化assetoken（这里应该是从某个服务获取实际的token）
String initialToken = "initial_token_value";
storeAssetoken(initialToken);
// 安排定时任务刷新token
scheduler.scheduleAtFixedRate(this::refreshAssetoken,
TOKEN_REFRESH_INTERVAL_MINUTES,
TOKEN_REFRESH_INTERVAL_MINUTES,
TimeUnit.MINUTES);
}
// 存储assetoken到Redis，并设置过期时间
private void storeAssetoken(String token) {
jedis.setex(ASSETOKEN_KEY, (int) TimeUnit.MINUTES.toSeconds(TOKEN_EXPIRATION_TIME_MINUTES), token);
}
// 刷新assetoken（这里模拟重新获取token）
private void refreshAssetoken() {
// 在实际应用中，这里应该是调用某个API或服务来获取新的token
String newToken = "new_token_value_" + System.currentTimeMillis();
storeAssetoken(newToken);
System.out.println("Assetoken refreshed: " + newToken);
}
// 关闭资源
public void shutdown() {
scheduler.shutdown();
jedis.close();
}
public static void main(String[] args) {
AssetokenManager manager = new AssetokenManager();
// 为了演示，让主线程等待一段时间，然后关闭资源
try {
Thread.sleep(TimeUnit.MINUTES.toMillis(TOKEN_EXPIRATION_TIME_MINUTES * 3)); // 比如等待3个小时
} catch (InterruptedException e) {
Thread.currentThread().interrupt();
}
manager.shutdown();
}
}