springConfig.xml
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<?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"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-3.0.xsd">
<context:annotation-config/>
<bean id = "user" class="com.spring.demo.User"></bean>
<bean id = "helloBean" class="com.spring.demo.Test" >
</bean>
</beans>
Test.java
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package com.spring.demo;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Qualifier;
public class Test {
private User user;
public User getUser() {
return user;
}
@Autowired
public void setUser(User user) {
this.user = user;
}
@Override
public String toString() {
String str = user+"";
return str;
}
}
main函数
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public static void main(String[] args) throws InstantiationException, IllegalAccessException, ClassNotFoundException {
Resource res = new ClassPathResource("com/spring/demo/springConfig.xml");
BeanFactory factory = new XmlBeanFactory(res);
Test hello = (Test) factory.getBean("helloBean");
System.out.println(hello.toString());
}
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就这样 为什么 user 这个对象是个 null 啊
刚学习 spring 遇到这个问题 怎么也想不通 求大哥大姐 们帮忙 解答一下
