Spring依赖查找实例

Spring依赖查找实例

<?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
        https://www.springframework.org/schema/beans/spring-beans.xsd">

    <bean id="person" class="com.hayaizo.spring.bean.Person"></bean>

</beans>

创建Person类，让Spring注入

package com.hayaizo.spring.bean;

public class Person {
    private String name;
    private int age;
    public Person(String name, int age) {
        this.name = name;
        this.age = age;
    }

    public Person() {
        this.name = "张三";
        this.age = 18;
    }

    public String getName() {
        return name;
    }
    public void setName(String name) {
        this.name = name;
    }
    public int getAge() {
        return age;
    }
    public void setAge(int age) {
        this.age = age;
    }

    @Override
    public String toString() {
        return "Person{" +
                "name='" + name + '\'' +
                ", age=" + age +
                '}';
    }
}

然后通过BeanFactory来获取

package com.hayaizo.spring;


import com.hayaizo.spring.bean.Person;
import org.springframework.beans.factory.BeanFactory;
import org.springframework.context.support.ClassPathXmlApplicationContext;

public class QuickstartByNameApplication {
    public static void main(String[] args) {
        BeanFactory factory = new ClassPathXmlApplicationContext("quickstart-byname.xml");
        Object person = factory.getBean("person");
        System.out.println((Person)person);
    }
}

原文地址：https://blog.csdn.net/2301_79516932/article/details/142983022

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