Spring使用P命名空间实现注入数值信息-----Spring框架

小咪咪 2024-03-23 18:17 113阅读 0赞

>     <?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">
>         
>     
>         <bean id="Dog" class="com.powernode.spring6.Bean.Dog" p:age="3" p:name="小花" p:birth-ref="Date"/>
>         <bean id="Date" class="java.util.Date"/>
>     </beans>
> 
>     <?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">
>         
>     
>         <bean id="Dog" class="com.powernode.spring6.Bean.Dog" p:age="3" p:name="小花" p:birth-ref="Date"/>
>         <bean id="Date" class="java.util.Date"/>
>     </beans>

>     package com.powernode.spring6.Bean;
>     
>     import java.util.Date;
>     
>     public class Dog
>     {
>         private String name;
>         private int age;
>         private Date birth;
>     
>         @Override
>         public String toString() {
>             return "Dog{" +
>                     "name='" + name + '\'' +
>                     ", age=" + age +
>                     ", birth=" + birth +
>                     '}';
>         }
>     
>         //p空间注入底层还是set注入,只不过p命名空间注入可以让spring配置变得更简单,一旦set方法不存在就会报错了
>         public void setName(String name) {
>             this.name = name;
>         }
>     
>         public void setAge(int age) {
>             this.age = age;
>         }
>     
>         public void setBirth(Date birth) {
>             this.birth = birth;
>         }
>     }
> 
>     package com.powernode.spring6.Bean;
>     
>     import java.util.Date;
>     
>     public class Dog
>     {
>         private String name;
>         private int age;
>         private Date birth;
>     
>         @Override
>         public String toString() {
>             return "Dog{" +
>                     "name='" + name + '\'' +
>                     ", age=" + age +
>                     ", birth=" + birth +
>                     '}';
>         }
>     
>         //p空间注入底层还是set注入,只不过p命名空间注入可以让spring配置变得更简单,一旦set方法不存在就会报错了
>         public void setName(String name) {
>             this.name = name;
>         }
>     
>         public void setAge(int age) {
>             this.age = age;
>         }
>     
>         public void setBirth(Date birth) {
>             this.birth = birth;
>         }
>     }

>     @Test
>         public void TestSpecial()
>         {
>             ApplicationContext applicationContext = new ClassPathXmlApplicationContext("set-di.xml");
>             MathBean MathBean = applicationContext.getBean("MathBean",MathBean.class);
>             System.out.println(MathBean);
>             applicationContext = new ClassPathXmlApplicationContext("Spring-p.xml");
>             System.out.println(applicationContext.getBean("Dog",Dog.class));
>         }
> 
>     @Test
>     public void TestSpecial()
>     {
>         ApplicationContext applicationContext = new ClassPathXmlApplicationContext("set-di.xml");
>         MathBean MathBean = applicationContext.getBean("MathBean",MathBean.class);
>         System.out.println(MathBean);
>         applicationContext = new ClassPathXmlApplicationContext("Spring-p.xml");
>         System.out.println(applicationContext.getBean("Dog",Dog.class));
>     }