SpringBoot开发教程之AOP日志处理

<dependency>

     <groupId>org.aspectj</groupId>

     <artifactId>aspectjweaver</artifactId>

     <version> 1.9 . 4 </version>

</dependency>

<dependency>

     <groupId>org.springframework.boot</groupId>

     <artifactId>spring-boot-starter-aop</artifactId>

     <scope>test</scope>

</dependency>

@Pointcut ( "execution(* com.blog.Controller..*.*(..))" )

public void log(){}

@Before ( "log()" )

public void doBefore(JoinPoint joinPoint){

     System.out.println( "在进入controller之前处理流-------------" );

}

@After ( "log()" )

public void doAfter(){

     System.out.println( "在进入controller之后处理流-------------" );

}

//在切入点return内容之后切入内容（可以用来对处理返回值做一些加工处理）

@AfterReturning (returning = "result" ,pointcut= "log()" )

public void doAfterReturning(Object result){

     logger.info( "Return ------ {}" ,result );

}

//通过上下文来获取请求里面的信息

ServletRequestAttributes attributes = (ServletRequestAttributes) RequestContextHolder.getRequestAttributes();

HttpServletRequest request = attributes.getRequest();

//获取封装了署名信息的对象,在该对象中可以获取到目标方法名,所属类的Class等信息(反射)

String classMethod = joinPoint.getSignature().getDeclaringTypeName()+ "," +joinPoint.getSignature().getName();

// 1. 获取URL

String url = request.getRequestURL().toString();

//2. 获取ip地址

String addr = request.getRemoteAddr();

/*创建一个类RequestData，来保存相关信息*/

RequestData requestData = new RequestData(

     url, addr, classMethod, joinPoint.getArgs()

);

//在控制台打印出来

logger.info( "RequestData------{}" ,requestData);