Cannot resolve method 'select' in 'RedisTemplate' 怎么回事呢
时间: 2023-08-07 15:04:01 浏览: 148
如果RedisTemplate中没有select方法,可能是因为你使用的是Spring Boot 2.x版本,而select方法在2.x版本中已经被废弃了。在2.x版本中,可以通过设置RedisTemplate的database属性来选择要操作的库,例如:
```
redisTemplate.setKeySerializer(new StringRedisSerializer());
redisTemplate.setValueSerializer(new StringRedisSerializer());
redisTemplate.setConnectionFactory(jedisConnectionFactory);
redisTemplate.setDatabase(0); // 选择第0个库
redisTemplate.opsForValue().set("key1", "value1");
```
这段代码会在第0个库中设置key1的值为value1。如果要操作其他库,只需修改database属性即可。
相关问题
Cannot resolve method 'setDatabase' in 'RedisTemplate'
如果RedisTemplate中也没有setDatabase方法,可能是因为你使用的是较早的版本,可以尝试使用以下的方式来选择要操作的库:
```
redisTemplate.setKeySerializer(new StringRedisSerializer());
redisTemplate.setValueSerializer(new StringRedisSerializer());
redisTemplate.setConnectionFactory(jedisConnectionFactory);
redisTemplate.setEnableTransactionSupport(true);
redisTemplate.afterPropertiesSet();
redisTemplate.getConnectionFactory().getConnection().select(0); // 选择第0个库
redisTemplate.opsForValue().set("key1", "value1");
```
这段代码会在第0个库中设置key1的值为value1。如果要操作其他库,只需修改select方法中的参数即可。注意,这种方式需要手动获取连接并调用select方法,相对较为繁琐。如果可以升级到更高版本的Spring Boot,建议使用setDatabase方法来选择要操作的库。
cannot resolve method error in logger
The "cannot resolve method" error in a logger indicates that the method being called does not exist in the logger's class or in any of its superclasses. This error can occur if you are using an outdated version of the logger or if you have misspelled the method name.
To resolve this error, make sure that you are using the correct version of the logger and that you have spelled the method name correctly. You can also check the logger's documentation or source code to ensure that the method you are trying to call actually exists.