引言：spring的面向切面一直没有着手真正自己做过，接下来小刘使用Aspect 实现注解日志。
1.aspect配置
<!-- Spring AOP 切面 模块 --><!-- https://mvnrepository.com/artifact/org.springframework/spring-aop --><dependency><groupId>org.springframework</groupId><artifactId>spring-aop</artifactId><version>5.0.8.RELEASE</version></dependency><dependency><groupId>org.aspectj</groupId><artifactId>aspectjrt</artifactId><version>1.9.2</version></dependency><dependency><groupId>org.aspectj</groupId><artifactId>aspectjweaver</artifactId><version>1.9.2</version></dependency><!--2.spring开启切面配置
<!--启动aop的注解--><aop:aspectj-autoproxy proxy-target-class="true" />其他配置不再赘述；
3.自定义注解类：SysLog
@Target(ElementType.METHOD)
@Retention(RetentionPolicy.RUNTIME)
@Documented
public @interface SysLog {String INSERT="增加";String DELETE="删除";String UPDATE="更改";String SELECT="查询";String OTHER="其他情况";String value() default "";String type() default "";}4.自定义日志实体类
private static final long serialVersionUID = 1L;private Integer id;private String type;//增删改查private Integer userId;private String username;private String requestMsg;//请求信息private String requestClass;//请求类private String method;//请求方法private String ip;//请求ipprivate String desp;//日志描述private String startTime;//请求时间private String timeConsuming;//耗时public SysLog(){}实体类其他方法以及mybatis保存不再赘述
5.日志切面类
@Aspect
@Component
public class SysLogAspect {@AutowiredHttpServletRequest request;@AutowiredSysLogDao sysLogDao;/*** 切入点*/@Pointcut("@annotation(com.annotation.SysLog)")public void pointCut() {}/*** 环绕通知** @param joinPoint* @return* @throws Throwable*/@Around("pointCut()")public Object around(ProceedingJoinPoint joinPoint) throws Throwable {long beginTime = System.currentTimeMillis();Object result = joinPoint.proceed();long time = System.currentTimeMillis() - beginTime;com.pojo.SysLog log=new com.pojo.SysLog();SimpleDateFormat dateformat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");log.setStartTime(dateformat.format(beginTime));long l = time / 1000;log.setTimeConsuming(String.valueOf(l)+"s");saveSysLog(joinPoint, log);return result;}/*** 保存日志** @param joinPoint*/private void saveSysLog(ProceedingJoinPoint joinPoint, com.pojo.SysLog logClass) throws UnknownHostException {System.out.println("--------------------------切面日志");MethodSignature signature = (MethodSignature) joinPoint.getSignature();Method method = signature.getMethod();SysLog log = method.getAnnotation(SysLog.class);if (log.type()!=null){logClass.setType(log.type());}else {logClass.setType("其他类型");}logClass.setDesp(log.value());logClass.setRequestClass(joinPoint.getTarget().getClass().getName());logClass.setMethod(signature.getName());
// // 请求的参数
// Object[] args = joinPoint.getArgs();
// if (args != null && args.length != 0 && args[0] != null) {
// System.out.println(args[0].toString());
// }Map<String,Object> reqMap=new HashMap<>();Map<String, String[]> parameterMap = request.getParameterMap();for (Map.Entry<String, String[]> entry : parameterMap.entrySet()) {reqMap.put(entry.getKey(),entry.getValue()[0]);//这里暂不考虑同名的请求参数}
// String s = IPUtils.getIpAddress(request);String addr = Utils.getIpAddr(request);reqMap.put("ip",InetAddress.getByName(request.getServerName()).getHostAddress());//获取服务器IP地址reqMap.put("req_ip",addr);reqMap.put("url",request.getRequestURL());//url全路径reqMap.put("uri",request.getRequestURI());//相对路径logClass.setIp(InetAddress.getByName(request.getServerName()).getHostAddress());ObjectMapper objJson = new ObjectMapper();try {String asString = objJson.writeValueAsString(reqMap);logClass.setRequestMsg(asString);} catch (JsonProcessingException e) {e.printStackTrace();}SysUser o = (SysUser) request.getSession().getAttribute("sysUser");if (o!=null){logClass.setUsername(o.getUsername());logClass.setUserId(o.getId());}sysLogDao.insertSelective(logClass);System.out.println("----------------------系统保存日志--------------------------------");System.out.println(logClass);}用法如下：控制层配置注解
/*** 初始化菜单* @return*/@SysLog(value = "登录首页",type = SysLog.SELECT)@RequestMapping(value = "/initMenu")@ResponseBody效果图如下：
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