spring学习笔记 星球日one - xml方式配置bean

 

 

ide: idea

lib包的导入：http://webcache.googleusercontent.com/search?q=cache:http://zyjustin9.iteye.com/blog/2172445

 

applicationContext.xml 文件：

如果是java project项目，那么要放在src目录下，同时，需要用 <aop: 来导入p

idea会自动检测此文件，根据上方提示加入spring配置即可

 

 

xml 方式 配置 bean：

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

    <bean id="category" class="com.how2java.pojo.Category" aop:id="10" aop:name="kinome"></bean>
    <!-- Product 注入 Category对象 -->
    <bean id="product" class="com.how2java.pojo.Product" aop:name="kinome_product" aop:category-ref="category"></bean>

</beans>

 

package com.how2java.pojo.test;

import com.how2java.pojo.Category;
import com.how2java.pojo.Product;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;

public class TestSpring {

    public static void main(String[] args) {

        ApplicationContext ctx = new ClassPathXmlApplicationContext("applicationContext.xml");
//        Category category = ctx.getBean(Category.class);
//        Category category = (Category) ctx.getBean("category");
//        System.out.println(category.getId()+" "+category.getName());

        Product product = (Product) ctx.getBean("product");
        System.out.println(product.getName()+" "+product.getCategory().getId()+" "+product.getCategory().getName());

    }


}

 

package com.how2java.pojo;

public class Product {

    private int id;
    private String name;
    private Category category;
    public int getId() {
        return id;
    }
    public void setId(int id) {
        this.id = id;
    }
    public String getName() {
        return name;
    }
    public void setName(String name) {
        this.name = name;
    }
    public Category getCategory() {
        return category;
    }
    public void setCategory(Category category) {
        this.category = category;
    }
}

 

package com.how2java.pojo;

public class Category {
    private int id;
    private String name;

    public int getId() {
        return id;
    }

    public void setId(int id) {
        this.id = id;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }
}