annotationWire.xml （一定記得配置context:annotation-config/）

<?xml version='1.0' encoding='UTF-8'?><beans xmlns='http://www.springframework.org/schema/beans' xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance' xmlns:context='http://www.springframework.org/schema/context' xmlns:p='http://www.springframework.org/schema/p' xsi:schemaLocation='http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/context https://www.springframework.org/schema/context/spring-context.xsd'> <context:annotation-config/> <bean p:order='202020124546' /> <bean /></beans>

User類

package com.annotationWire.pojo;import lombok.Data;import org.springframework.beans.factory.annotation.Autowired;@Datapublic class User { private String name; @Autowired private Order order;}

Order類

package com.annotationWire.pojo;import lombok.Data;@Datapublic class Order { private String order;}

測(cè)試類

package com.annotationWire;import com.annotationWire.pojo.User;import org.junit.Test;import org.springframework.context.ApplicationContext;import org.springframework.context.support.ClassPathXmlApplicationContext;public class TestAnnotation { @Test public void test(){ApplicationContext applicationContext = new ClassPathXmlApplicationContext('annotationWire.xml');User student = applicationContext.getBean(User.class);System.out.println(student); }}java配置spring，無(wú)法@Autowired自動(dòng)注入bean的問(wèn)題

要在配置類上加上@ComponentScan

同時(shí)在RootConfigure和ServletConfig兩個(gè)類上scan的對(duì)象是不同的

ServletConfig是用來(lái)注冊(cè)DispatcherServlet的，它只是用來(lái)掃描controller層的

RootConfigure用來(lái)注冊(cè)ContextLoaderListener，他掃描的范圍是除了controller以外的bean，例如dao，service，bean實(shí)體。

以上為個(gè)人經(jīng)驗(yàn)，希望能給大家一個(gè)參考，也希望大家多多支持好吧啦網(wǎng)。