88e030b7
 王彪总
init project
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package com.java110.db;
import org.springframework.beans.BeansException;
import org.springframework.beans.factory.config.BeanPostProcessor;
import org.springframework.stereotype.Component;
import java.util.Map;
import java.util.Objects;
import java.util.concurrent.ConcurrentHashMap;
/**
* 此类主要用于调优，使用 打印bean的加载时间
*/
@Component
public class BeanInitCostTimeBeanPostProcessor implements BeanPostProcessor {
private static Map<String, Long> startTime = new ConcurrentHashMap<>();
@Override
public Object postProcessBeforeInitialization(Object bean, String beanName) throws BeansException {
startTime.put(beanName, System.currentTimeMillis());
return bean;
}
@Override
public Object postProcessAfterInitialization(Object bean, String beanName) throws BeansException {
if (Objects.nonNull(startTime.get(beanName))) {
long time = System.currentTimeMillis() - startTime.get(beanName);
if(time>1000) {
System.out.println("beanName=" + beanName + ",costTime=" + time);
}
}
return bean;
}
}
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