Spring的核心思想

Spring的核心思想是IOC和AOP.

IOC:控制反转,核心:对象的创建交给配置文件来管理.

public class TestClass(){
  public void getTest(){
system.out.print(".....TestClass.......")
}
}

   配置文件:

<beans>
   <bean id="testClass" class="com.TestClass">
   </bean>
</beans>

 测试:

 public class mainClass(){
 ApplicationContext context=new XmlClassPathApplicationContext("applicationContext.xml")//配置文件默认在classPath下;
TestClass test=(TestClass) context.getBean("testClass");
 test.getTest();
}

结果:

.....TestClass.......