Spring Boot的AOP自定义注解，且解析参数

柔情只为你懂 2022-03-17 07:16 184阅读 0赞

定义注解类：

import java.lang.annotation.ElementType;
    import java.lang.annotation.Retention;
    import java.lang.annotation.RetentionPolicy;
    import java.lang.annotation.Target;
    
    @Target(ElementType.METHOD)
    @Retention(RetentionPolicy.RUNTIME)
    public @interface AspectSysLog {
    
    	String record() default "";
    }

注入类：

import java.lang.reflect.Method;
    import java.util.HashMap;
    import java.util.Map;
    
    import javax.annotation.Resource;
    
    import org.aspectj.lang.JoinPoint;
    import org.aspectj.lang.annotation.After;
    import org.aspectj.lang.annotation.Aspect;
    import org.aspectj.lang.annotation.Before;
    import org.aspectj.lang.annotation.Pointcut;
    import org.slf4j.Logger;
    import org.slf4j.LoggerFactory;
    import org.springframework.beans.factory.annotation.Autowired;
    import org.springframework.stereotype.Component;
    
    import com.alibaba.fastjson.JSON;
    import com.using.common.core.bean.ErrorEnum;
    import com.using.common.core.exception.BusinessException;
    import com.using.judge.auth.entity.extra.ExtraUsers;
    import com.using.judge.web.client.common.entity.table.BusinessLog;
    import com.using.judge.web.client.common.entity.vo.AspectSysLog;
    import com.using.judge.web.client.mapper.BusinessLogMapper;
    import com.using.judge.web.client.service.UserService;
    import com.using.judge.web.client.utils.SnowflakeIdWorker;
    
    import javassist.ClassClassPath;
    import javassist.ClassPool;
    import javassist.CtClass;
    import javassist.CtMethod;
    import javassist.Modifier;
    import javassist.NotFoundException;
    import javassist.bytecode.CodeAttribute;
    import javassist.bytecode.LocalVariableAttribute;
    import javassist.bytecode.MethodInfo;
    
    @Aspect
    @Component
    public class SysLogAspect {
    
    	final static Logger log = LoggerFactory.getLogger(SysLogAspect.class);
    
    	@Resource
    	private UserService userService;
    	@Autowired
    	private BusinessLogMapper businessLogMapper;
    	
        ThreadLocal<Long> beginTime = new ThreadLocal<>();
    
        @Pointcut("@annotation(analysisActuator)")
        public void serviceStatistics(AspectSysLog analysisActuator) {
        }
    
        @Before("serviceStatistics(analysisActuator)")
        public void doBefore(JoinPoint joinPoint, AspectSysLog analysisActuator) {
            // 记录请求到达时间
            beginTime.set(System.currentTimeMillis());
            log.info("cy666 note:{}", analysisActuator.record());
        }
    
        @After("serviceStatistics(analysisActuator)")
        public void doAfter(JoinPoint joinPoint,AspectSysLog analysisActuator) throws ClassNotFoundException, NotFoundException, BusinessException {
        	//类名
            String targetName = joinPoint.getTarget().getClass().getName();
            //方法名
            String methodName = joinPoint.getSignature().getName();
            //参数
            Object[] arguments = joinPoint.getArgs();
            Class targetClass = Class.forName(targetName);
            Method[] methods = targetClass.getMethods();
            Map<String, Object> resultMap = getFieldsName(this.getClass(),targetClass.getName(),methodName,arguments);
            log.info("cy666 statistic time:{}, note:{}", System.currentTimeMillis() - beginTime.get(), analysisActuator.record());
            
            BusinessLog businessLog = new BusinessLog();
    	    SnowflakeIdWorker snowflakeIdWorker = new SnowflakeIdWorker(1, 1);
    	    businessLog.setId(String.valueOf(snowflakeIdWorker.nextId()));
    	    businessLog.setMethodName(targetClass.getName()+"."+methodName);
    	    businessLog.setParameter(JSON.toJSONString(resultMap));
    	    ExtraUsers currentUser = userService.findCurrentUser();
    		if (currentUser != null) {
    			businessLog.setOperationUser(currentUser.getName());
    		}else {
    			Map tmpMap = JSON.parseObject(JSON.toJSONString(resultMap.get("map")), Map.class); 
    			businessLog.setOperationUser(tmpMap.containsKey("token")?tmpMap.get("token").toString():"");
    		}
    	    businessLog.setMethodTime(System.currentTimeMillis()-beginTime.get());
    	    businessLog.setOperationRecord(analysisActuator.record());
    	    businessLogMapper.insertSelective(businessLog);
    		beginTime.set(System.currentTimeMillis());
        }
        private Map<String, Object> getFieldsName(Class cls, String clazzName, String methodName, Object[] args) throws NotFoundException {
            Map<String, Object> map = new HashMap<String, Object>();
    
            ClassPool pool = ClassPool.getDefault();
            ClassClassPath classPath = new ClassClassPath(cls);
            pool.insertClassPath(classPath);
    
            CtClass cc = pool.get(clazzName);
            CtMethod cm = cc.getDeclaredMethod(methodName);
            MethodInfo methodInfo = cm.getMethodInfo();
            CodeAttribute codeAttribute = methodInfo.getCodeAttribute();
            LocalVariableAttribute attr = (LocalVariableAttribute) codeAttribute.getAttribute(LocalVariableAttribute.tag);
            if (attr == null) {
            }
            int pos = Modifier.isStatic(cm.getModifiers()) ? 0 : 1;
            for (int i = 0; i < cm.getParameterTypes().length; i++) {
                map.put(attr.variableName(i + pos), args[i]);
            }
            return map;
        }
    }

使用：

@AspectSysLog(record = "查询学生详细信息")
    	@PostMapping(value="/testRequest")
    	public JsonResult<PageResult> testRequest(@RequestParam(value="userid",required=false) Integer userid){
    		return null;
    	}

使用maven的jar：

<dependency>  
            <groupId>org.springframework.boot</groupId>  
            <artifactId>spring-boot-starter-aop</artifactId>  
        </dependency>