springboot中将非service类交给spring托管
使用一个util类 SpringUtil ,这个类放在和springboot启动类同包下。
import org.springframework.beans.BeansException;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationContextAware;
import org.springframework.stereotype.Component;
/**
* 普通类调用Spring bean对象:
* 说明:
* 1、此类需要放到App.java同包或者子包下才能被扫描,否则失效。
* @author Administrator
*/
@Component
public class SpringUtil implements ApplicationContextAware{
private static ApplicationContext applicationContext = null;
@Override
public void setApplicationContext(ApplicationContext applicationContext) throws BeansException {
if(SpringUtil.applicationContext == null){
SpringUtil.applicationContext = applicationContext;
}
System.out.println("---------------------------------------------------------------------");
System.out.println("---------------------------------------------------------------------");
System.out.println("---------------com.example.order.util.SpringUtil------------------------------------------------------");
System.out.println("========ApplicationContext配置成功,在普通类可以通过调用SpringUtils.getAppContext()获取applicationContext对象,applicationContext="+SpringUtil.applicationContext+"========");
System.out.println("---------------------------------------------------------------------");
}
//获取applicationContext
public static ApplicationContext getApplicationContext() {
return applicationContext;
}
//通过name获取 Bean.
public static Object getBean(String name){
return getApplicationContext().getBean(name);
}
//通过class获取Bean.
public static <T> T getBean(Class<T> clazz){
return getApplicationContext().getBean(clazz);
}
//通过name,以及Clazz返回指定的Bean
public static <T> T getBean(String name,Class<T> clazz){
return getApplicationContext().getBean(name, clazz);
}
}
Util类创建成功之后,
在自己的类中使用
ProgramTypeService programTypeService = (ProgramTypeService) SpringUtil.getBean("programTypeService");
即可调用
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