Spring 空值和特殊字符的注入

╰+哭是因爲堅強的太久メ 2022-12-17 10:56 89阅读 0赞

空值和特殊字符注入

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### 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

public class Book {
        private String bname;
        private String bauthor;
        private String address;
    
        public void setBname(String bname) {
            this.bname = bname;
        }
    
        public void setBauthor(String bauthor) {
            this.bauthor = bauthor;
        }
    
        public void setAddress(String address) {
            this.address = address;
        }
    
        public void testDemo(){
            System.out.println(bname+"    "+bauthor+"    "+address);
        }
    }

### 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

bean5.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.E_空值和特殊字符注入.Book">
            
            <property name="bname" value="围城"/>
            <property name="bauthor" value="钱钟书"/>
    
            
            
    
            
            <property name="address">
                <value><![CDATA[<<南京>>]]></value>
            </property>
    
        </bean>
        
    </beans>

### 三、测试 ###

test05.java

public class test05 {
        public static void main(String[] args) {
            ApplicationContext context =
                    new ClassPathXmlApplicationContext("com/health/IOC/E_空值和特殊字符注入/bean5.xml");
            Book book = context.getBean("book", Book.class);
            book.testDemo();
        }
    }

输出结果：

![2020102314400622.png][]

[2020102314400622.png]: /images/20221122/d434ddb0ef7a4f239ebf90490d37f552.png