文章目录
自定义注解BussLogBussLogAspect前言：使用注解方式实现日志管理，可以使我们的程序变的清晰、简单，不和很多业务代码混在一起。
实现思路大致分为四点
设计日志表和日志类，编写日志Dao和Service以及实现自定义注解，注解中加入几个属性，属性可以标识操作的类型(方法是做什么的)编写切面，切点表达式使用上面的注解直接定位到使用注解的方法，编写通知，通过定位到方法，获取上面的注解以及注解的属性，然后从session中直接获取或者从数据库获取当前登录用户的信息，最后根据业务处理一些日志信息之后调用日志Service存储日志
设计日志表和日志类此步骤将省略可以根据自己的实际情况设计
自定义注解
BussLog
package com.sl.annotation;import java.lang.annotation.ElementType;import java.lang.annotation.Retention;import java.lang.annotation.RetentionPolicy;import java.lang.annotation.Target;/*** @author shuliangzhao* @Title: BussLog* @ProjectName spring-boot-learn* @Description: TODO* @date /10/14 20:06*/@Target({ElementType.METHOD})@Retention(RetentionPolicy.RUNTIME)public @interface BussLog {/*** 业务的名称*/String value() default "";/*** 是否将当前日志记录到数据库中*/boolean save() default true;}
BussLogAspect
package com.sl.aop;import com.alibaba.fastjson.JSON;import com.sl.annotation.BussLog;import org.aspectj.lang.JoinPoint;import org.aspectj.lang.ProceedingJoinPoint;import org.aspectj.lang.Signature;import org.aspectj.lang.annotation.Around;import org.aspectj.lang.annotation.Aspect;import org.aspectj.lang.annotation.Pointcut;import org.aspectj.lang.reflect.MethodSignature;import org.slf4j.Logger;import org.slf4j.LoggerFactory;import org.springframework.context.annotation.EnableAspectJAutoProxy;import org.ponent;import java.lang.reflect.Method;import java.util.LinkedList;import java.util.List;import java.util.regex.Matcher;import java.util.regex.Pattern;/*** @author shuliangzhao* @Title: BussLogAspect* @ProjectName spring-boot-learn* @Description: TODO* @date /10/14 20:08*/@Aspect@Component@EnableAspectJAutoProxypublic class BussLogAspect {private static final Logger log = LoggerFactory.getLogger(BussLogAspect.class);@Pointcut(value = "@annotation(com.sl.annotation.BussLog)")public void pointcut() {}@Around("pointcut()")public Object writeLog(ProceedingJoinPoint point) throws Throwable {//先执行业务Object result = point.proceed();try {handle(point);} catch (Exception e) {log.error("日志记录出错!", e);}return result;}private void handle(ProceedingJoinPoint point) throws Exception {Method currentMethod = getMethod(point);//获取操作名称BussLog annotation = currentMethod.getAnnotation(BussLog.class);boolean save = annotation.save();String bussinessName = parseParams(point.getArgs(), annotation.value());log.info("{} | {} - {} {} - {}", bussinessName);if (!save) {return;}}private Method getMethod(JoinPoint point) throws NoSuchMethodException {Signature sig = point.getSignature();MethodSignature msig = (MethodSignature) sig;Object target = point.getTarget();return target.getClass().getMethod(msig.getName(), msig.getParameterTypes());}public String parseParams(Object[] params, String bussinessName) {if (bussinessName.contains("{") && bussinessName.contains("}")) {List<String> result = match(bussinessName, "(?<=\\{)(\\d+)");for (String s : result) {int index = Integer.parseInt(s);bussinessName = bussinessName.replaceAll("\\{" + index + "}", JSON.toJSONString(params[index - 1]));}}return bussinessName;}private static List<String> match(String str, String regex) {if (null == str) {return null;}Pattern pattern = pile(regex);Matcher matcher = pattern.matcher(str);List<String> list = new LinkedList<>();while (matcher.find()) {list.add(matcher.group());}return list;}}
