几个常用的切点注解，这次使用了@Before和@Around
1.@Before 前置增强（目标方法执行之前，执行注解标注的内容）
2.@AfterReturning 后置增强（目标方法正常执行完毕后，执行）
3.@Around 环绕增强（目标方法执行前后，分别执行一些代码）
4.@AfterThrowing 抛出增强（目标方法发生异常，执行）
5.@After Final增强（不管是抛出异常还是正常退出，该增强都会得到执行。一般用于释放资源，相当于try{}finally{}）。
切Controller打印请求的接口、参数、返回值以及耗时情况。
package com.tfjy.arbackend.aop;
import com.alibaba.fastjson.JSONObject;
import com.tfjy.arbackend.util.FrontResult;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.aspectj.lang.ProceedingJoinPoint;
import org.aspectj.lang.annotation.Around;
import org.aspectj.lang.annotation.Aspect;
import org.aspectj.lang.annotation.Pointcut;
import org.springframework.stereotype.Component;
import org.springframework.web.context.request.RequestContextHolder;
import org.springframework.web.context.request.ServletRequestAttributes;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.util.ArrayList;
import java.util.List;
@Aspect
@Component
public class RestAopConfig {
public static Boolean onOff = false;
private static Log logger = LogFactory.getLog(RestAopConfig.class);
@Pointcut("execution(public * com.tfjy.arbackend.controller..*.*(..))")
public void pointCutRestDef(){
}
//环绕切点
@Around("pointCutRestDef()")
public Object processRst(ProceedingJoinPoint point) throws Throwable{
Object returnValue = null;
final List<Object> params = new ArrayList<>();
//获得请求信息
ServletRequestAttributes sra =(ServletRequestAttributes)RequestContextHolder.getRequestAttributes();
if(sra==null){
return point.proceed();
}
HttpServletRequest request = sra.getRequest();
Object[] args = point.getArgs();
//过滤出HttpServlet
for (int i = 0; i < args.length; i++) {
Object object = args[i];
if (object instanceof HttpServletResponse){
continue;
}
if (object instanceof HttpServletRequest){
continue;
}
params.add(object);
}
logger.info(
"rest method:——>"+point.getSignature().getDeclaringTypeName()+"."+point.getSignature().getName());
String cloneParams = JSONObject.toJSONString(params);
logger.info("rest param:——>"+cloneParams);
long startTime = System.currentTimeMillis();
//去执行方法，这里的异常交给统一捕获异常去处理
returnValue = point.proceed(point.getArgs());
//处理返回值
if (returnValue instanceof FrontResult){
FrontResult frontResult=(FrontResult)returnValue;
logger.info("rest response:——>"+frontResult.toString());
}
long endTime = System.currentTimeMillis();
logger.info("rest"+request.getRequestURI()+"----used time----"+(endTime - startTime));
Boolean boolean1 =true;
if (returnValue != null && !returnValue.equals(boolean1)){
logger.info(JSONObject.toJSONString(returnValue));
}
return returnValue;
}
}
切Service打印日志，URL，请求方式，IP，类名，方法
package com.tfjy.arbackend.aop;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.aspectj.lang.JoinPoint;
import org.aspectj.lang.annotation.Aspect;
import org.aspectj.lang.annotation.Before;
import org.aspectj.lang.annotation.Pointcut;
import org.springframework.stereotype.Component;
import org.springframework.web.context.request.RequestAttributes;
import org.springframework.web.context.request.RequestContextHolder;
import org.springframework.web.context.request.ServletRequestAttributes;
import javax.servlet.http.HttpServletRequest;
import java.util.Arrays;
@Aspect //注解将一个java类定义为切面类
@Component
public class AopGetService {
private static Log logger = LogFactory.getLog(AopGetService.class);
@Pointcut("execution(public * com.tfjy.arbackend.service..*.*(..))")//切入点描述 这个是service包的切入点
public void getServiceJournal() {
}//签名，可以理解成这个切入点的一个名称
//前置切点
@Before("getServiceJournal()")//在切入点开始处切入内容
public void logBeforeService(JoinPoint joinPoint) {
// 接收到请求，记录请求内容
RequestAttributes requestAttributes = RequestContextHolder.getRequestAttributes();
if(requestAttributes==null){
return ;
}
HttpServletRequest request = ((ServletRequestAttributes) requestAttributes).getRequest();
// 记录下请求内容
logger.info("URL : " + request.getRequestURL().toString());
logger.info("HTTP_METHOD : " + request.getMethod());
logger.info("IP : " + request.getRemoteAddr());
//下面这个getSignature().getDeclaringTypeName()是获取包+类名的 然后后面的joinPoint.getSignature.getName()获取了方法名
logger.info("CLASS_METHOD : " + joinPoint.getSignature().getDeclaringTypeName() + "." + joinPoint.getSignature().getName());
logger.info("ARGS : " + Arrays.toString(joinPoint.getArgs()));
}
}总结
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