AOP注解日志

约定不等于承诺〃 2023-07-03 04:46 2阅读 0赞

## AOP日志 ##

#### 1，导入Aspect的依赖包 ####

<dependency>
                <groupId>org.aspectj</groupId>
                <artifactId>aspectjweaver</artifactId>
            </dependency>
            <dependency>
                <groupId>org.aspectj</groupId>
                <artifactId>aspectjrt</artifactId>
            </dependency>

#### 2，因为都是基于springboot的项目，所以不再xml里面配置aop，此时需要些aop自定义注解 ####

//作用于方法
    	@Target(ElementType.METHOD)
    	@Retention(RetentionPolicy.RUNTIME)
    	public @interface LogAnnotation{
        
          		String operationName();
          		String operationType();
    	}

#### 3，需要在哪个方法上面开启AOP日志，就打上自定义的LogAnnotation注解，如： ####

//便于在具体处理日志的时候拿出来
     @LogAnnotation(operationType = "/login",operationName = "用户登录")
            @RequestMapping("/login")
            public String login(String username,String password){
        
                Subject subject = SecurityUtils.getSubject();
                if (!subject.isAuthenticated()) {
        
                    UsernamePasswordToken token = new UsernamePasswordToken(username, password);
                    subject.login(token);
                }
                return "success";
            }

#### 4，在具体的类里面开启AOP日志 ####

public class LogAspect {
        
    
        @Pointcut("execution(* persion.david..controller.*.*(..))")
        public void pointCut() {
        
    
        }
    
       // @Before("pointCut()")
        public void before(JoinPoint joinPoint) throws Exception {
        
            //我想要先知道用户在做什么
            //获取正在被拦截的方法
            String name = joinPoint.getTarget().getClass().getName();
            String name1 = joinPoint.getSignature().getName();
            // System.out.println(joinPoint.getSignature().toString());
            Object[] args = joinPoint.getArgs();
            //System.out.println("name:====>" + name + "---------->name1:--->" + name1 + "=-=-=-=-=-=args:==>" + Arrays.toString(args));
            //找方法上面的注解
            Class<?> clazz = Class.forName(name);
    
    
            // Method method = clazz.getMethod(name1,);
            Method[] methods = clazz.getMethods();
    
            for (Method method : methods) {
        
                // System.out.println(method.toString());
                if (method.getName().equalsIgnoreCase(name1)) {
        //当前遍历到的方法和正在使用的方法是一样的
    
                    LogAnnotation logAnnotation = method.getAnnotation(LogAnnotation.class);
                    //获取注解的值
                    if (logAnnotation != null) {
        
                        String operationName = logAnnotation.operationName();
                        String operationType = logAnnotation.operationType();
                        //System.out.println("operationName:===?" + operationName + "     --->operationType:==>" + operationType);
                        SysAdmin sysAdmin = (SysAdmin) SecurityUtils.getSubject().getSession().getAttribute("user");
                        System.out.println(operationName + "被执行了(" + operationType + "),参数是:" + Arrays.toString(args) + (sysAdmin == null ? "" : "执行的用户是:==>" + sysAdmin.getName()));
                    }
                }
    
    
            }
    
        }
    
        /**
         * 约定优于编码,这个时候我们发现我们的controller因为返回值类型五花八门,导致我们在这里很难判断到底是成功还是失败,所以我们应该将返回值约定为统一类型, 比如resultbean类型,然后根据我们在里面约定的错误码,来决定显示成功还是失败
         * @param joinPoint
         * @param o
         * @throws Exception
         */
        @AfterReturning(value = "pointCut()", returning = "o")
        public void after(JoinPoint joinPoint, Object o) throws Exception {
        
            //我想要先知道用户在做什么
            //获取正在被拦截的方法
            String name = joinPoint.getTarget().getClass().getName();
            String name1 = joinPoint.getSignature().getName();
            // System.out.println(joinPoint.getSignature().toString());
            Object[] args = joinPoint.getArgs();
            //System.out.println("name:====>" + name + "---------->name1:--->" + name1 + "=-=-=-=-=-=args:==>" + Arrays.toString(args));
            //找方法上面的注解
            Class<?> clazz = Class.forName(name);
    
    
            // Method method = clazz.getMethod(name1,);
            Method[] methods = clazz.getMethods();
    
            for (Method method : methods) {
        
                // System.out.println(method.toString());
                if (method.getName().equalsIgnoreCase(name1)) {
        //当前遍历到的方法和正在使用的方法是一样的
    
                    LogAnnotation logAnnotation = method.getAnnotation(LogAnnotation.class);
                    //获取注解的值
                    if (logAnnotation != null) {
        
                        String operationName = logAnnotation.operationName();
                        String operationType = logAnnotation.operationType();
                        //System.out.println("operationName:===?" + operationName + "     --->operationType:==>" + operationType);
                        SysAdmin sysAdmin = (SysAdmin) SecurityUtils.getSubject().getSession().getAttribute("user");
                        System.out.println(operationName + "被执行了(" + operationType + "),参数是:" + Arrays.toString(args) + (sysAdmin == null ? "" : "执行的用户是:==>" + sysAdmin.getName()));
                    }
                }
    
            }
        }
    
        @AfterThrowing(pointcut = "pointCut()",throwing = "t")
        public void  afterThrowing(JoinPoint joinPoint,Throwable t) throws Exception {
        
            //我想要先知道用户在做什么
            //获取正在被拦截的方法
            String name = joinPoint.getTarget().getClass().getName();
            String name1 = joinPoint.getSignature().getName();
            // System.out.println(joinPoint.getSignature().toString());
            Object[] args = joinPoint.getArgs();
            //System.out.println("name:====>" + name + "---------->name1:--->" + name1 + "=-=-=-=-=-=args:==>" + Arrays.toString(args));
            //找方法上面的注解
            Class<?> clazz = Class.forName(name);
    
    
            // Method method = clazz.getMethod(name1,);
            Method[] methods = clazz.getMethods();
    
            for (Method method : methods) {
        
                // System.out.println(method.toString());
                if (method.getName().equalsIgnoreCase(name1)) {
        //当前遍历到的方法和正在使用的方法是一样的
    
                    LogAnnotation logAnnotation = method.getAnnotation(LogAnnotation.class);
                    //获取注解的值
                    if (logAnnotation != null) {
        
                        String operationName = logAnnotation.operationName();
                        String operationType = logAnnotation.operationType();
                        //System.out.println("operationName:===?" + operationName + "     --->operationType:==>" + operationType);
                        SysAdmin sysAdmin = (SysAdmin) SecurityUtils.getSubject().getSession().getAttribute("user");
                        System.out.println(operationName + "被执行了(" + operationType + "),参数是:" + Arrays.toString(args) + (sysAdmin == null ? "" : "执行的用户是:==>" + sysAdmin.getName())+"结果失败了");
                        //在这里可以实现自己的业务逻辑，进行日志操作入库
    
                    }
                }
    
            }
        }
    }