文章内容
在spring boot中使用spring-boot-starter-aop对自定义注解的支持，本质上是spring aop对自定义注解的支持。
spring-boot-starter-aop自定义注解步骤如下：
1、编写自定义注解类
1 2 3 4 5 | @Documented@Target({ElementType.PARAMETER, ElementType.METHOD})@Retention(RetentionPolicy.RUNTIME)public @interface ULog {} |
2、编写注解类切面
01 02 03 04 05 06 07 08 09 10 11 12 13 14 | @Aspect@Componentpublic class HLogAspect { @Pointcut("@annotation(com.yql.service.ULog)") public void annotationPointCut() { } @Before("annotationPointCut()") public void before(JoinPoint joinPoint){ MethodSignature sign = (MethodSignature)joinPoint.getSignature(); Method method = sign.getMethod(); System.out.print("接受方法："+method.getName()+" 前置日志"); }} |
3、在spring boot的Application启动类中使用@EnableAspectJAutoProxy注解，添加对Aspectj支持
1 2 3 4 5 6 7 8 9 | @SpringBootApplication//开启spring对Aspectj的支持@EnableAspectJAutoProxypublic class AopApplication { public static void main(String[] args) { SpringApplication.run(AopApplication.class, args); }} |
4、调用自定义注解
1 2 3 4 5 6 7 8 9 | @RestControllerpublic class TestController { @RequestMapping(value="/") @ULog public String test(){ return "hello world"; }} |
5、pom文件需要添加一下依赖
01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 | <dependencies> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-test</artifactId> <scope>test</scope> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-aop</artifactId> </dependency></dependencies> |