基本知识点如下:
除了ioc基本的六个包,再引入aop开发的包
<!-- ========================引入spring关于注解开发的context约束======================== --> <?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:context="http://www.springframework.org/schema/context" xsi:schemalocation=" http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd"> </beans>
package spring.day2.demo1; public interface userdao { public void save(); }
package spring.day2.demo1; public class userdaoimp1 implements userdao { @override public void save() { system.out.println("userdao的save方法已经执行......."); } }
package spring.day2.demo1; import org.junit.test; /* * ioc注解开发入门 */ public class springdemo1 { @test /* * 传统方式 */ public void demo1() { userdao userdao = new userdaoimp1(); userdao.save(); } }
@test /* * ioc的注解方式 */ public void demo2() { applicationcontext applicationcontext = new classpathxmlapplicationcontext("applicationcontext3.xml"); userdao bean = (userdao) applicationcontext.getbean("userdao"); bean.save(); }
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