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Spring注解@After,@Around,@Before的执行顺序？( 二 )

spring


2018-11-23 16:31:59.796 [http-nio-8888-exec-9] INFO c.l.blog.config.LogApsect - 请求参数：[]
2018-11-23 16:31:59.796 [http-nio-8888-exec-9] INFO c.l.blog.config.LogApsect - ------------------------------------------------------
方法执行-----------
2018-11-23 16:31:59.806 [http-nio-8888-exec-9] DEBUG c.l.b.m.A.selectPrimaryKey - ==> Preparing: select * from article_detail where id = ?
2018-11-23 16:31:59.806 [http-nio-8888-exec-9] DEBUG c.l.b.m.A.selectPrimaryKey - ==> Preparing: select * from article_detail where id = ?
2018-11-23 16:31:59.806 [http-nio-8888-exec-9] DEBUG c.l.b.m.A.selectPrimaryKey - ==> Parameters: 1(Long)
2018-11-23 16:31:59.806 [http-nio-8888-exec-9] DEBUG c.l.b.m.A.selectPrimaryKey - ==> Parameters: 1(Long)
2018-11-23 16:31:59.814 [http-nio-8888-exec-9] DEBUG c.l.b.m.A.selectPrimaryKey - <== Total: 1
2018-11-23 16:31:59.814 [http-nio-8888-exec-9] DEBUG c.l.b.m.A.selectPrimaryKey - <== Total: 1
方法之后执行...after.
方法执行完执行...afterRunning
2018-11-23 16:31:59.824 [http-nio-8888-exec-9] INFO c.l.blog.config.LogApsect - 耗时（毫秒）：27
2018-11-23 16:31:59.824 [http-nio-8888-exec-9] INFO c.l.blog.config.LogApsect - 返回数据：com.lmx.blog.common.Response@8675ce5
2018-11-23 16:31:59.824 [http-nio-8888-exec-9] INFO c.l.blog.config.LogApsect - ==========================================>
可以看到，因为没有匹配@Around的规则，所以没有进行环绕通知 。（PS：我定义的环绕通知意思是要符合是 controller 包下的方法并且方法必须带有参数，而上述方法没有参数，所以只走了@before和@after方法，不符合@Around的匹配逻辑）
我们再试一下另一个带有参数的方法
@RedisCache(type = Response.class)
@RequestMapping("/sendEmail")
public Response sendEmailToAuthor(String content){
System.out.println("测试执行次数");
return Response.ok(true);
以下是该部分代码的console打印
name:第二封邮件呢
方法环绕start...around
方法执行前执行......before
2018-11-23 16:34:55.347 [http-nio-8888-exec-2] INFO c.l.blog.config.LogApsect - <=====================================================
2018-11-23 16:34:55.347 [http-nio-8888-exec-2] INFO c.l.blog.config.LogApsect - 请求来源： =》0:0:0:0:0:0:0:1
2018-11-23 16:34:55.347 [http-nio-8888-exec-2] INFO c.l.blog.config.LogApsect - 请求URL：http://localhost:8888/user/sendEmail
2018-11-23 16:34:55.348 [http-nio-8888-exec-2] INFO c.l.blog.config.LogApsect - 请求方式：GET
2018-11-23 16:34:55.348 [http-nio-8888-exec-2] INFO c.l.blog.config.LogApsect - 响应方法：com.lmx.blog.controller.UserController.sendEmailToAuthor
2018-11-23 16:34:55.348 [http-nio-8888-exec-2] INFO c.l.blog.config.LogApsect - 请求参数：[第二封邮件呢]
2018-11-23 16:34:55.348 [http-nio-8888-exec-2] INFO c.l.blog.config.LogApsect - ------------------------------------------------------
测试执行次数
com.lmx.blog.common.Response@6d17f2fdaop String
方法环绕end...around
方法执行前执行......before
2018-11-23 16:34:55.349 [http-nio-8888-exec-2] INFO c.l.blog.config.LogApsect - <=====================================================
2018-11-23 16:34:55.349 [http-nio-8888-exec-2] INFO c.l.blog.config.LogApsect - 请求来源： =》0:0:0:0:0:0:0:1
2018-11-23 16:34:55.349 [http-nio-8888-exec-2] INFO c.l.blog.config.LogApsect - 请求URL：http://localhost:8888/user/sendEmail
2018-11-23 16:34:55.349 [http-nio-8888-exec-2] INFO c.l.blog.config.LogApsect - 请求方式：GET
2018-11-23 16:34:55.349 [http-nio-8888-exec-2] INFO c.l.blog.config.LogApsect - 响应方法：com.lmx.blog.controller.UserController.sendEmailToAuthor
2018-11-23 16:34:55.349 [http-nio-8888-exec-2] INFO c.l.blog.config.LogApsect - 请求参数：[第二封邮件呢]
2018-11-23 16:34:55.350 [http-nio-8888-exec-2] INFO c.l.blog.config.LogApsect - ------------------------------------------------------
测试执行次数
方法之后执行...after.
方法执行完执行...afterRunning
2018-11-23 16:34:55.350 [http-nio-8888-exec-2] INFO c.l.blog.config.LogApsect - 耗时（毫秒）：0
2018-11-23 16:34:55.350 [http-nio-8888-exec-2] INFO c.l.blog.config.LogApsect - 返回数据：com.lmx.blog.common.Response@79f85428
2018-11-23 16:34:55.350 [http-nio-8888-exec-2] INFO c.l.blog.config.LogApsect - ==========================================>
显而易见，该方法符合@Around环绕通知的匹配规则，所以进入了@Around的逻辑，但是发现了问题，所有的方法都被执行了2次，不管是切面层还是方法层 。（有人估计要问我不是用的自定义注解


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