DependsOn注解可以让我们在某个bean依赖另外一个bean的时候先加载另外一个bean，如下在控制台可以看到b类先被注入
package com.testGetBean;import org.slf4j.Logger;import org.slf4j.LoggerFactory;import org.springframework.context.annotation.DependsOn;import org.springframework.stereotype.Component;@Component@DependsOn("b")public class A { private Logger logger = LoggerFactory.getLogger(getClass()); public A() {
System.out.println("A");
logger.info("我是A我被实例化啦");
} public void display() {
System.out.println("A dispaly");
}
}package com.testGetBean;import org.slf4j.Logger;import org.slf4j.LoggerFactory;import org.springframework.stereotype.Component;@Componentpublic class B { private Logger logger = LoggerFactory.getLogger(getClass()); public B() {
System.out.println("B");
logger.info("我是B我被实例化啦");
} public void display() {
System.out.println("b dispaly");
}
}