spring的基于XML方式的属性注入

1.1构造方法注入普通值---------<constructor-arg>标签的使用

首先新建一个类

package spring.day1.demo3;

public class car {

    private String name;
    private double price;

    public car(String name, Double price) {
        this.name = name;
        this.price = price;
    }

    @Override
    public String toString() {
        return "car [name=" + name + ", price=" + price + "]";
    }

}

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