时间配置Java中Redis设置过期时间的使用方法（redisjava过期）

MySQL, Redis and Timeouts

For a software to stay running, it needs to be able to access and interact with its databases. Among these databases, MySQL and Redis are the most popular, due to their good performance, scalability and availability.

However, when dealing with a real-time environment, both MySQL and Redis require an extra step. In these cases, it is necessary to set proper timeouts to ensure that the software behaves as planned.

Timeouts are essential for improving performance and the user experience, as they limit the amount of time a user must wait for a response from a database. They also prevent applications from entering in a non-responsive state, which could potentially crash the system.

In Java, configuring the timeouts for MySQL and Redis is the same. We do this by setting the ‘maxWait’ or ‘maxWaitMillis’ option in the connection pool configuration.

For example, in order to set a MySQL connection timeout of 1000 milliseconds, we can set the ‘maxWait’ option as shown below:

String url = “jdbc:mysql://127.0.0.1/my_db”;

BasicDataSource dataSource = new BasicDataSource();

dataSource.setUrl(url);

dataSource.setMaxWait(1000);

Likewise, for configuring Redis, we can set the ‘maxWaitMillis’ option as shown:

JedisPoolConfig poolConfig = new JedisPoolConfig();

poolConfig.setMaxWaitMillis(1000);

JedisPool jedisPool = new JedisPool(poolConfig, “127.0.0.1”);

Finally, when configuring the timeouts, it is important to consider the software’s specific needs. Configuring high timeouts is not always better, as a low timeout provides tension that encourages the user to take action quickly.

In conclusion, setting timeouts in MySQL and Redis is necessary to ensure the proper functioning of a real-time software. This can be easily done in Java by setting the ‘maxWait’ or ‘maxWaitMillis’ option in the connection pool configuration. It is important to consider the specific needs of the software when configuring the timeouts.