2.31 使用

1. 创建项目

2. pom.xml

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>

    <groupId>com.zsk</groupId>
    <artifactId>spring-context-test</artifactId>
    <version>1.0-SNAPSHOT</version>

    <dependencies>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-context</artifactId>
            <version>4.3.24.RELEASE</version>
        </dependency>
    </dependencies>
</project>

3. 代码

• AopConfig

@Configuration
public class AopConfig
{
    @Bean
    public Calc calc()
    {
        return new Calc();
    }
}

• Calc

public class Calc
{
    public int div(int i, int i1)
    {
        return i / i1;
    }
}

• Main

public class Main
{
    public static void main(String[] args)
    {
        //创建ApplicationContext
        AnnotationConfigApplicationContext applicationContext = new AnnotationConfigApplicationContext(AopConfig.class);
        //从ApplicationContext中获取Calc的bean
        Calc calc = applicationContext.getBean(Calc.class);
        //调用div方法
        System.out.println(calc.div(10,10));

    }
}