案例一:注入基本数据类型属性
(1)创建类,定义属性和对应的set方法
//1.创建类
public class Book {
//2.定义属性
private String bname;
private String bauthor;
//3.提供属性的set方法
public void setBname(String bname) {
this.bname = bname;
}
public void setBauthor(String bauthor) {
this.bauthor = bauthor;
}
@Override
public String toString() {
return "Book{" +
"bname='" + bname + '\'' +
", bauthor='" + bauthor + '\'' +
'}';
}
}
(2)在spring配置文件中先配置对象创建,再配置属性注入
<?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:p="http://www.springframework.org/schema/p"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans.xsd">
<!-- 1.配置对象创建 -->
<bean id="book" class="com.orz.spring.test1.Book">
<!-- 2.属性注入 -->
<!-- 使用property完成属性注入
name:类里面的属性名称
value:向属性注入的值
-->
<property name="bauthor" value="金庸"></property>
<property name="bname" value="射雕英雄传"></property>
</bean>
</beans>
(3)测试
@Test
public void test1()
{
//1.加载spring配置文件
ApplicationContext context=new ClassPathXmlApplicationContext("bean1.xml");
//2.获取配置文件的创建对象
Book book = context.getBean("book", Book.class);
//3
System.out.println(book);
}
(4)结果
Book{bname='射雕英雄传', bauthor='金庸'}