springboot aop 自定义注解

枚举类：

/**
 * Created by tzq on 2018/5/21.
 */
public enum MyAnnoEnum {
    SELECT("select","查询"),
    INSERT("insert","添加"),
    UPDATE("update","修改"),
    DELECT("delect","删除");

    private MyAnnoEnum(String code, String name) {
        this.code = code;
        this.name = name;
    }
    public static String getNameByCode(String code) {
        for (MyAnnoEnum enm : MyAnnoEnum.values()) {
            if (enm.getCode() == code) {
                return enm.getName();
            }
        }
        return null;
    }
    private String code;
    private String name;

    public String getCode() {
        return code;
    }

    public void setCode(String code) {
        this.code = code;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }
}

pom.xml

<!--aop-->
<dependency>
　　<groupId>org.springframework.boot</groupId>
　　<artifactId>spring-boot-starter-aop</artifactId>
</dependency>
MyAnno类：自定义注解类

import cn.supercop.idss.enm.MyAnnoEnum;

import java.lang.annotation.*;

/**
 * 自定义注解类
 * Created by tzq on 2018/5/19.
 */
@Target({ElementType.METHOD})
@Retention(RetentionPolicy.RUNTIME)
@Documented
public @interface  MyAnno {

     MyAnnoEnum  value();

}

HtppHandlerMethodAspect : aop 类

import ch.qos.logback.core.net.SyslogOutputStream;
import cn.supercop.idss.config.MyAnno;
import cn.supercop.idss.domain.system.AuditLog;
import cn.supercop.idss.enm.MyAnnoEnum;
import cn.supercop.idss.service.AuditLogService;
import com.alibaba.fastjson.JSON;
import org.apache.commons.lang.StringUtils;
import org.apache.shiro.SecurityUtils;
import org.apache.shiro.subject.Subject;
import org.aspectj.lang.JoinPoint;
import org.aspectj.lang.ProceedingJoinPoint;
import org.aspectj.lang.annotation.Around;
import org.aspectj.lang.annotation.Aspect;
import org.aspectj.lang.annotation.Before;
import org.aspectj.lang.annotation.Pointcut;
import org.aspectj.lang.reflect.MethodSignature;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
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 java.lang.annotation.Annotation;
import java.lang.reflect.Method;
import java.util.*;


@Aspect //定义一个切面
@Component
public class HtppHandlerMethodAspect {

    private Logger log = LoggerFactory.getLogger(HtppHandlerMethodAspect.class);
    private static final String[] IGNORE_URI = {"api/login"};//放行集合不进行aop
    @Autowired
    private AuditLogService auditLogService;

    /**
     * 过滤指定url不aop
     * @return true or false
     */
    public boolean filter_URL(){
        // 接收到请求，记录请求内容
        ServletRequestAttributes attributes = (ServletRequestAttributes) RequestContextHolder.getRequestAttributes();
        HttpServletRequest request = attributes.getRequest();
        boolean flag = false;
        String url = request.getRequestURL().toString();
        log.info(">>>: " + url);
        for (String s : IGNORE_URI) {
            if (url.contains(s)) {
                log.info("访问路径包含在放行集合中");
                flag = true;
                break;
            }
        }
        return  flag ;
    }

    /**
     * 所有的 controller 层进行aop扫描
     * @param joinPoint
     * @throws Exception
     */
    @Before("execution(* cn.supercop.idss.controller..*(..))")
    public void executioncontroller(JoinPoint joinPoint) throws  Exception  {
        System.out.println("****************************controller 开始****************************");
        if(!filter_URL()){
            analysis(joinPoint);
        }
        System.out.println("****************************controller 结束****************************");

    }

    /**
     * 所有的mapper层进行aop扫描，
     * @param joinPoint
     * @throws Exception

    @Before("execution(* cn.supercop.idss.mapper..*(..)) ")
    public void executemapper(JoinPoint joinPoint) throws  Exception  {
        System.out.println("****************************mapper 开始****************************");
        if(!"cn.supercop.idss.mapper.AuditLogMapper.insert".equals(joinPoint.getSignature().getDeclaringTypeName() + "." + joinPoint.getSignature().getName()))
        analysis(joinPoint);
        System.out.println("****************************mapper 结束****************************");
    }
     */
    public void analysis(JoinPoint joinPoint) throws  Exception  {
        // 接收到请求，记录请求内容
        ServletRequestAttributes attributes = (ServletRequestAttributes) RequestContextHolder.getRequestAttributes();
        HttpServletRequest request = attributes.getRequest();
        // 记录下请求内容
        System.out.println("URL : " + request.getRequestURL().toString());//请求路径
        System.out.println("HTTP_METHOD : " + request.getMethod());//请求方法类型
        System.out.println("IP : " + request.getRemoteAddr());//
        //aop 切点的方法
        System.out.println("CLASS_METHOD : " + joinPoint.getSignature().getDeclaringTypeName() + "." + joinPoint.getSignature().getName());
        System.out.println("ARGS : " + Arrays.toString(joinPoint.getArgs()));
        //获取目标方法的参数信息
        Object[] obj = joinPoint.getArgs();
        for (Object o : obj) {
            System.out.println(o);
        }


        Enumeration<String> enumeration = request.getParameterNames();
        Map<String, String> parameterMap = new HashMap();
        while (enumeration.hasMoreElements()) {
            String parameter = enumeration.nextElement();
            parameterMap.put(parameter, request.getParameter(parameter));
        }
        String str = JSON.toJSONString(parameterMap);
        if (obj.length > 0) {
            System.out.println("请求的参数信息为：" + str);
        }
        String action = "缺少类型";//动作
        //取自定义注解
        Method method=((MethodSignature)joinPoint.getSignature()).getMethod();
        Method realMethod = joinPoint.getTarget().getClass().getDeclaredMethod(joinPoint.getSignature().getName(),
                method.getParameterTypes());
        Annotation an = method.getAnnotation(MyAnno.class);
        if(an instanceof MyAnno){
            MyAnno myAnno = (MyAnno) an;
            action = myAnno.value().getName();
            System.out.println("value: " + myAnno.value().getName());
        }
        //取用户名
        Subject subject = SecurityUtils.getSubject();
        String username = subject.getPrincipal().toString();
        if(MyAnnoEnum.SELECT.getName() != action){
            AuditLog auditLog = new AuditLog();
            auditLog.setOccurredTime(new Date());//发生时间
            auditLog.setAction(action);//动作
            auditLog.setObjectName(joinPoint.getSignature().getDeclaringTypeName() + "." + joinPoint.getSignature().getName());//操作对像名称
            auditLog.setDescription(str);//描述
            auditLog.setSource(request.getRequestURL().toString());// '源头';
            auditLog.setClientIp(this.getRemortIP(request));//客户端IP
            auditLog.setUserId(new Long(1));//用户ID
            auditLog.setUserType("内部");//用户类型
            auditLog.setStatus((short) 1);//执行状态
            auditLog.setCreatedBy(username);//创建人
            auditLog.setModifiedBy(username);//创建人
            auditLogService.addAuditLog(auditLog);
        }


    }

    public String getRemortIP(HttpServletRequest request) {
        String ip = request.getHeader("x-forwarded-for");
        if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
            ip = request.getHeader("Proxy-Client-IP");
        }
        if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
            ip = request.getHeader("WL-Proxy-Client-IP");
        }
        if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
            ip = request.getHeader("HTTP_CLIENT_IP");
        }
        if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
            ip = request.getHeader("HTTP_X_FORWARDED_FOR");
        }
        if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
            ip = request.getRemoteAddr();
        }
        return ip;
    }

}

主要注解的类：

如Controller：

　　/**
     * 查询蓝牙访问列表
     */
    @MyAnno(MyAnnoEnum.SELECT)
    @RequestMapping("/selectBluetoothAccess")
    @ResponseBody
    public Result<Object> selectBluetoothAccess(BluetoothAccess bluetoothAccess) {

如mapper or Dao ：

public interface WifiAccessMapper {
    Long count(@Param("personId") String personId);
    //查询
    @MyAnno(MyAnnoEnum.SELECT)
    List<WifiAccess> select (WifiAccess wifiAccess);
}

总结：

自定义一个注解，注解引用一个枚举来约束注解后的值，定义来insert/update/select/deltet， 定义在dao层或者Controller层都可以实现，可根据业务需要实现，

在aop   HtppHandlerMethodAspect类，根据execution表达式来切，在类中定义来一个常量数组，来过滤一些一个表达式中需要过滤的信息，analysis方法解析参数；

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原文地址：https://www.cnblogs.com/mytzq/p/9071733.html