Spring学习笔记2——创建Product对象，并在其中注入一个Category对象

第一步：创建Product类。在Product类中有对Category对象的set和get方法

package com.spring.cate;

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;
    }
}

第二步：在创建Product的时候注入一个Category对象

注意，这里要使用ref来注入另一个对象

<?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/aop"
    xmlns:tx="http://www.springframework.org/schema/tx"
    xmlns:context="http://www.springframework.org/schema/context"
    xsi:schemaLocation="
   http://www.springframework.org/schema/beans
   http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
   http://www.springframework.org/schema/aop
   http://www.springframework.org/schema/aop/spring-aop-3.0.xsd
   http://www.springframework.org/schema/tx
   http://www.springframework.org/schema/tx/spring-tx-3.0.xsd
   http://www.springframework.org/schema/context     
   http://www.springframework.org/schema/context/spring-context-3.0.xsd">

  <context:annotation-config/>
    <bean name="category" class="com.spring.cate.Category">
        <property name="name" value="category 3333" />
    </bean>
    <bean name="product" class="com.spring.cate.Product">
        <property name="name" value="product 3333" />
        <property name="category" ref="category" />
    </bean>

   <!--<context:component-scan base-package="com.spring.cate"/>-->
</beans>

第三步：测试

package com.spring.test;

import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;

import com.spring.cate.Product;

public class TestSpring {

    public static void main(String[] args) {
        // TODO Auto-generated method stub
        ApplicationContext context = new ClassPathXmlApplicationContext(new String[] { "applicationContext.xml" });
        Product p = (Product) context.getBean("product");
        System.out.println(p.getName());
        System.out.println(p.getCategory().getName());
    }

}