Spring set注入

阳光穿透心脏的1/2处 2022-12-17 10:54 162阅读 0赞

通过set方法进行属性的注入

## ##

### 一、新建类 ###

首先建一个普通类，定义属性，**并生成相应的set方法**

Book.java

/**
     * set方法进行注入
     */
    public class Book {
        private String bname;
        private String bauthor;
    
        public void setBname(String bname) {
            this.bname = bname;
        }
    
        public void setBauthor(String bauthor) {
            this.bauthor = bauthor;
        }
    
        public void testDemo(){
            System.out.println(bname+"    "+bauthor);
        }
    }

## ##

### 二、编写配置文件 ###

在配置文件中配置对象创建并进行属性注入

bean2.xml

<?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">
    
        
        <bean id="book" class="com.health.IOC.B_set注入.Book">
            
            <property name="bname" value="围城"/>
            <property name="bauthor" value="钱钟书"/>
        </bean>
    
    </beans>

## ##

### 三、测试 ###

test02.java

public class test02 {
        public static void main(String[] args) {
            ApplicationContext context =
                    new ClassPathXmlApplicationContext("com/health/IOC/B_set注入/bean2.xml");
            Book book = context.getBean("book",Book.class);
            book.testDemo();
        }
    }

输出结果：

![20201023141758880.png][]

[20201023141758880.png]: /images/20221122/827d157978dc4425b3102f1e73904a0c.png