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//pojo--Product基本类
//Shop有参构造方法
//User--List可用基本类用作集合元素
//bean--id--class--scope(prototype/singleton)
//property--value
//property--ref
//constructor-arg
//new Product()----->spring 管理bean
public class Product {
String pname;
int num;
public String getPname() {
return pname;
}
public void setPname(String pname) {
System.out.println(pname);
this.pname = pname;
}
public int getNum() {
return num;
}
public void setNum(int num) {
System.out.println(num);
this.num = num;
}
}
package spring02;
public class Shop {
String shopname;
int productTypeNum;
public Shop(String shopname,int num) {
// TODO Auto-generated constructor stub
System.out.println(shopname);
System.out.println(num);
this.shopname=shopname;
this.productTypeNum=num;
}
}
package spring02;
import java.util.List;
public class User {
String username;
List<String> productls;
List<Product> pls;
public List<Product> getPls() {
return pls;
}
public void setPls(List<Product> pls) {
System.out.println("data2"+pls.get(0).pname);
System.out.println("data2"+pls.get(1).pname);
System.out.println("data2"+pls.get(2).pname);
this.pls = pls;
}
public List<String> getProductls() {
return productls;
}
public void setProductls(List<String> productls) {
System.out.println("data1 "+productls.get(0));
this.productls = productls;
}
public User() {
// TODO Auto-generated constructor stub
System.out.println("user....");
}
public String getUsername() {
return username;
}
public void setUsername(String username) {
this.username = username;
}
}
package spring02;
import org.springframework.context.support.ClassPathXmlApplicationContext;
public class Test {
public static void main(String[] args) {
// TODO Auto-generated method stub
ClassPathXmlApplicationContext cfg=new ClassPathXmlApplicationContext("applicationContext.xml");
Shop shop=(Shop)cfg.getBean("shop");
Shop shop2=(Shop)cfg.getBean("shop");
if(shop==shop2)
System.out.println("yes");
}
}
<?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:context="http://www.springframework.org/schema/context"
xmlns:aop="http://www.springframework.org/schema/aop"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-3.1.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-3.1.xsd
http://www.springframework.org/schema/aop
http://www.springframework.org/schema/aop/spring-aop-3.1.xsd">
<bean id="product" class="spring02.Product">
<property name="pname" value="acer"></property>
<property name="num" value="12" ></property>
</bean>
<bean id="product2" class="spring02.Product">
<property name="pname" value="acer2"></property>
<property name="num" value="12" ></property>
<!-- <property name="user" ref="user" ></property> -->
</bean>
<bean id="product3" class="spring02.Product">
<property name="pname" value="acer3"></property>
<property name="num" value="12" ></property>
<!-- <property name="user" ref="user" ></property> -->
</bean>
<bean id="user" class="spring02.User">
<property name="username" value="joi"></property>
<property name="productls">
<list>
<value>lenvo</value>
<value>acer</value>
<value>xiaomi</value>
<value>huawei</value>
</list>
</property>
<property name="pls">
<list>
<ref bean="product"/>
<ref bean="product2"/>
<ref bean="product3"/>
</list>
</property>
</bean>
<bean id="shop" class="spring02.Shop" scope="prototype">
<constructor-arg index="0" value="ali"></constructor-arg>
<constructor-arg index="1" value="23"></constructor-arg>
</bean>
</beans>