案例
- 建立复杂的数据类型
Student类
public class Student {
private String name;
private Address address;
private List<String> books;
private Map<String,String> card;
private Properties info;
private String winner;
private boolean isMale;
// 注意加上相应的set方法，和toString
}
address类
public class Address {
private String province;
// 注意加上相应的set方法，和toString
}
- 建立beans.xml的spring配置文件
<?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
http://www.springframework.org/schema/beans/spring-beans.xsd">
<!--几种不同的数据类型set注入的方式-->
<bean id="address" class="com.mao.pojo.Address">
<property name="province">
<value>北京</value>
</property>
</bean>
<bean id="student" class="com.mao.pojo.Student" name="stu">
<property name="name" value="猫猫"/>
<property name="address" ref="address"/>
<property name="books">
<array value-type="java.lang.String">
<value>java一点通</value>
<value>c语言程序设计</value>
<value>python程序设计</value>
<value>网络安全和攻防</value>
</array>
</property>
<property name="card">
<map>
<entry key="card_id" value="123123123"/>
<entry key="name" value="ccard"/>
</map>
</property>
<property name="info">
<props>
<prop key="name">Mao</prop>
<prop key="sex">male</prop>
<prop key="goals">89</prop>
</props>
</property>
<property name="male" value="false"/>
<property name="winner">
<null/>
</property>
</bean>
</beans>
- 测试
@Test
public void test(){
ApplicationContext context = new ClassPathXmlApplicationContext("studentbean.xml");
Student student = (Student) context.getBean("student");
System.out.println(student);
/*
Student{
name='猫猫',
address=Address{
province='北京'
},
books=[java一点通, c语言程序设计, python程序设计, 网络安全和攻防],
card={card_id=123123123, name=ccard},
info={sex=male, name=Mao, goals=89},
winner='null', isMale=false
}
*/
}