最近項目為了提高程序效率,把日志之類的附帶操作寫在線程中,但是在使用過程中卻發現在service層無法使用注解自動注入ThreadPoolTaskExecutor線程類,后來查了資料,說是為了線程安全,是不允許自動注入,下面提供一種方法可以在service層使用ThreadPoolTaskExecutor
1.創建工具類SpringBeanUtil
package com.glens.eap.platform.util; import org.springframework.beans.BeansException; import org.springframework.context.ApplicationContext; import org.springframework.context.ApplicationContextAware; import org.springframework.stereotype.Component; @Component public class SpringBeanUtil implements ApplicationContextAware { private static ApplicationContext applicationContext = null; @Override public void setApplicationContext(ApplicationContext applicationContext) throws BeansException { // TODO Auto-generated method stub SpringBeanUtil.applicationContext = applicationContext; } /** * 從靜態變量applicationContext中得到Bean, 自動轉型為所賦值對象的類型. */ @SuppressWarnings("unchecked") public static <T> T getBean(String name) { if (name == null || applicationContext == null) return null; return (T) applicationContext.getBean(name); } /** * 從靜態變量applicationContext中得到Bean, 自動轉型為所賦值對象的類型. */ public static <T> T getBean(Class<T> clazz) { return applicationContext.getBean(clazz); } }
2.在你需要使用類中寫入
ThreadPoolTaskExecutor threadPoolTaskExecutor = (ThreadPoolTaskExecutor) SpringBeanUtil.getBean("threadPoolTaskExecutor");
3.這樣就可以使用ThreadPoolTaskExecutor這個類了