Spring5框架概述

概述

入门案例

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd">

<!--配置User对象的创建-->
    <bean id="user" class="com.example.spring5.User"></bean>
</beans>

public class User {
    
    
    public void add() {
    
    
        System.out.println("add......");
    }
}


import com.example.spring5.User;
import org.junit.Test;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;


public class TestSpring5 {
    
    
    @Test
    public void testAdd() {
    
    
        //1. 加载spring的配置文件
        ApplicationContext context = new ClassPathXmlApplicationContext("bean1.xml");


        //2. 获取配置创建的文件
        User user = context.getBean("user", User.class);

        System.out.println(user);
        user.add();
    }
}