Spring项目 AOP+自定义注解方式实现访问量统计功能

应用场景:统计某个接口的调用次数，调用参数。

一：需要引入的依赖

  <!-- aspectj相关jar包 aop 相关 -->
    <dependency>
      <groupId>aopalliance</groupId>
      <artifactId>aopalliance</artifactId>
      <version>1.0</version>
    </dependency>
    <dependency>
      <groupId>org.aspectj</groupId>
      <artifactId>aspectjrt</artifactId>
      <version>1.8.1</version>
    </dependency>
    <dependency>
      <groupId>org.aspectj</groupId>
      <artifactId>aspectjweaver</artifactId>
      <version>1.8.1</version>
    </dependency>

二：在spring-mvc.xml配置文件中开启切面扫描

    <aop:aspectj-autoproxy />

    <aop:config proxy-target-class="true"></aop:config>

 

三：创建自定义注解

import java.lang.annotation.*;

/**
 * controller层日志拦截注解
 *
 */
@Target({ElementType.PARAMETER, ElementType.METHOD})
@Retention(RetentionPolicy.RUNTIME)
@Documented
public @interface ControllerLog {

    String value() default "";
}

四：创建切面类

/**
 * AOP切面统计菜单点击次数
 */
@Aspect
@Component
public class LogAspect {
    //Controller层切入点
    @Pointcut("@annotation(com.niucheng.common.annotation.ControllerLog)")
    private void ControllerAspet(){
    }
    
    /**
     * 前置通知，统计菜单点击率
     * @param joinPoint
     */
    @Before("ControllerAspet()")
    private void doBefore(JoinPoint joinPoint){
        HttpServletRequest request = ((ServletRequestAttributes) RequestContextHolder.getRequestAttributes()).getRequest();
        //请求url
        System.out.println("------------url:"+request.getRequestURI());
        //调用的方法
        System.out.println("------------method:"+joinPoint.getTarget().getClass().getName() + "." + joinPoint.getSignature().getName() + "()");

        //请求的参数
        Map<String, String[]> properties = request.getParameterMap();
        Map<Object, Object> returnMap = new HashMap<Object, Object>();
        Iterator<Map.Entry<String, String[]>> entries = properties.entrySet().iterator();
        Map.Entry entry;
        String name = "";
        String value = "";

        while (entries.hasNext()) {
            entry = (Map.Entry) entries.next();
            name = (String) entry.getKey();
            Object valueObj = entry.getValue();
            if (null == valueObj) {
                value = "";
            } else if (valueObj instanceof String[]) {
                String[] values = (String[]) valueObj;
                for (int i = 0; i < values.length; i++) {
                    value = values[i] + ",";
                }
                value = value.substring(0, value.length() - 1);
            } else {
                value = valueObj.toString();
            }
            returnMap.put(name, value);
        }
        System.out.println("------------param:"+returnMap.toString());
        
    }

}

五：测试

在Controller层加上@ControllerLog()注解

    @ControllerLog()
    @RequestMapping("/cheng")
    public void test(){
        System.out.println("------");
    }

输出结果：