Spring中AOP实例详解需要增强的服务假如有以下service,他的功能很简单,打印输入的参数并返回参数。 @Service public class SimpleService { public String getName(String name) { System.out.println(get name is: + name); return name; } }定义切面和切点 @Component @Aspect public class L ogAspect { // 定义切点 @Pointcut(within(com.ydoing.service..*)) // @Pointcut(execution(* com.ydoing.service.*.*(..))) public void pointCut() { } }Before增强处理 // 定义Before增强处理 // 在目标方法调用之前执行增强处理 @Before(pointCut()) public void before(JoinPoint jp) { // 获取连接点传入参数 // Object args = jp.getArgs(); System.out.println(Before增强处理--execute before target method call); }--------------------------------------------------------------------------------测试输出: Before增强处理--execute before target method call get name is: BobAfterReturning增强 // 在目标方法调用之后执行增强处理 @AfterReturning(pointcut = pointCut(), returning = ret) public void afterReturning(JoinPoint jp, Object ret) { System.out.println(AfterReturnin增强处理--execute after target method call, return value is : + ret); }--------------------------------------------------------------------------------测试输出: get name is: Bob AfterReturnin增强处理--execute after target method call, return value is :BobAround增强 @Around(pointCut()) public void around(ProceedingJoinPoint jp) { System.out.println(Around增强--around start...); Object[] args = jp.getArgs(); // 修改目标方法传入的参数 args[0] = around_add_ + args[0]; try { System.out.println(修改传入参数后执行输出:); jp.proceed(args); } catch (Throwable e) { // TODO Auto-generated catch block e.printStackTrace(); } System.out.println(Around增强--around end); }--------------------------------------------------------------------------------输出: Around增强--around start... 修改传入参数后执行输出: get name is: around_add_Bob Around增强--around endAfter增强 // 无论是否发生异常都会 处理 @After(pointCut()) public void after() { System.out.println(After增强--always do no matter what happen); }--------------------------------------------------------------------------------输出: get name is: Bob After增强--always do no matter what happen AfterThrowing增强 @AfterThrowing(pointcut = pointCut(), throwing = ex) public void afterThrowing(JoinPoint jp, Throwable ex) { System.out.println(error is: + ex); }这里没抛异常,就没有输出了测试代码如下 @Configuration @EnableAspectJAutoProxy @ComponentScan(basePackages = com.ydoing.service,com.ydoing.aspect) public class AppConfig { public static void main(String[] args) { @SuppressWarnings(resource) ApplicationContext ctx = new AnnotationConfigApplicationContext(AppConfig.class); SimpleService service = ctx.getBean(SimpleService.class); service.getName(Bob); } }Spring AOP进行日志记录 http://www.linuxidc.com/Linux/2015-11/124731.htm使用Spring AOP进行性能监控 http://www.linuxidc.com/Linux/2012-07/64681.htm利用Spring AOP 更新Memcached 缓存策略的实现 http://www.linuxidc.com/Linux/2012-03/56503.htmSpring AOP的两种代理 http://www.linuxidc.com/Linux/2015-11/125017.htmSpring AOP的注解实例 http://www.linuxidc.com/Linux/2015-11/125018.htm本文永久更新链接地址:http://www.linuxidc.com/Linux/2015-12/125933.htm