基於xml的IOC環境搭建

##引入spring的maven依賴

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>

    <groupId>cn.mulinhu.com</groupId>
    <artifactId>cn.mulinhu.com</artifactId>
    <version>1.0-SNAPSHOT</version>

    <dependencies>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-context</artifactId>
            <version>5.2.3.RELEASE</version>
        </dependency>
    </dependencies>
</project>

依賴引入後，maven會自動幫我們下載相關的jar包

創建一個測試bean

package domain;

public class TestBean {
    private String name;
    public TestBean(){

    }
    public TestBean(String name) {
        this.name = name;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }
}

配置xml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">
    <bean id="testBean" class="domain.TestBean">
        <property name="name" value="他山之石"/>
    </bean>
</beans>

import domain.TestBean;
import org.apache.commons.logging.Log;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;

public class App {
    public static void main(String[] args) {

        ApplicationContext context=new ClassPathXmlApplicationContext("domain/testBean.xml");
       TestBean testBean=(TestBean)context.getBean("testBean");
        System.out.println(testBean.getName());
       ((ClassPathXmlApplicationContext)context).close();
    }
}