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有沒有辦法檢查在運行Spring啓動應用程序時是否加載了@Configuration組件? 我有一些 '空指針' 的問題時,我使用這個程序:在SpringBoot中檢查Redis @Configuration
主要類
@ComponentScan(basePackages = "com.pack")
@EnableAutoConfiguration
public class App {
public static void main(String[] args) {
SpringApplication.run(App.class, args);
}
}
配置類
package com.pack.config;
@Configuration
public class DataBaseConfig {
@Bean
JedisConnectionFactory jedisConnFactory() {
return new JedisConnectionFactory();
}
@Bean
public StringRedisSerializer stringRedisSerializer() {
StringRedisSerializer stringRedisSerializer = new StringRedisSerializer();
return stringRedisSerializer;
}
@Bean(name = "redisTemplate")
public RedisTemplate<String, Object> redisTemplate() {
RedisTemplate<String, Object> redisTemplate = new RedisTemplate();
redisTemplate.setConnectionFactory(jedisConnFactory());
redisTemplate.setKeySerializer(stringRedisSerializer());
return redisTemplate;
}
}
,當我嘗試使用RedisTemplate:
public class ServiceDummy {
@Autowired
RedisTemplate<String, Object> redisTemplate;
public void save(String data){
redisTemplate.opsForValue().set("1234", data);
}
}
即時獲得nullPointer。
您的'ServiceDummy'類是否標有'@ Component'?也許自動裝配不會選擇它。 – Todd