• Eclipse上新建一个简单的maven工程,Artifact Id选择maven-archetype-quickstart;
  • 添加spring-context依赖;
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-context</artifactId>
            <version>3.2.16.RELEASE</version>
        </dependency>
  • resources目录下添加spring的配置文件spring.xml;
  • 开始编写bean及测试代码;

Bean的创建方式

默认构造方法创建bean

首先,写一个杂技师类;

package cn.edu.hdu.sia.chapter2;

public class Juggler implements Performer {
    private int beanBags = 3;

    public Juggler() {
    }

    public Juggler(int beanBags) {
        this.beanBags = beanBags;
    }

    public void perform() throws PerformanceException {
        System.out.println("JUGGLING " + beanBags + " BEANBAGS");
    }
}
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