replace-method

replace-method

定义bean

// 定义原有实体和方法
public class RunMan {

    public void say(){
        System.out.println("i am rum man");
    }
}

// 定义替代方法
public class RunReplacer implements MethodReplacer {
    @Override
    public Object reimplement(Object o, Method method, Object[] objects) throws Throwable {
        System.out.println(o.getClass().getName());
        System.out.println(method.getName());
        System.out.println("i am replacer");
        return null;
    }
}

定义xml

<bean id="runMan" class="org.dhcao.relax.spring.replace.RunMan">
    <replaced-method name="say" replacer="replacer">
    </replaced-method>
  </bean>

  <bean id="replacer" class="org.dhcao.relax.spring.replace.RunReplacer"></bean>

测试代码

public class Main {
    public static ApplicationContext context = null;
    public static void main(String[] args) {
        context = new ClassPathXmlApplicationContext("spring-context.xml");
        replace();
    }

    public static void replace(){
        RunMan run = (RunMan) context.getBean("runMan");
        run.say();
    }
}

测试结果

org.dhcao.relax.spring.replace.RunMan&&EnhancerBySpringCGLIB&&475def3a
say
i am replacer