package com.carloan.common.web.annotation; import java.lang.annotation.*; /**
* 自定义redis缓存注解、只要在service上添加该注解。数据第一次访问都会加载到redis里
*
*
*
* @author 周志伟
*
*
*/
@Target(ElementType.METHOD)
@Retention(RetentionPolicy.RUNTIME)
@Documented
public @interface RedisCache {
/**
* SYS 系统级别
* INFO 业务级别
* @return
*/
String type() default "SYS";
}
package com.carloan.common.web.aspect; import com.carloan.common.redisTemplate.service.RedisUtils;
import com.carloan.common.utils.SpringUtil;
import com.carloan.common.web.annotation.RedisCache;
import org.apache.commons.lang3.StringUtils;
import org.aspectj.lang.ProceedingJoinPoint;
import org.aspectj.lang.Signature;
import org.aspectj.lang.annotation.Around;
import org.aspectj.lang.annotation.Aspect;
import org.aspectj.lang.reflect.MethodSignature;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.stereotype.Component; import java.lang.reflect.Method; /**
* @author 周志伟
* @projectname 项目名称: ${project_name}
* @classname: RedisAspect
* @description:
*
* 定义redis缓存AOP
*
* @date 2018/7/18:16:44
*/
@Component
@Aspect
public class RedisAspect {
Logger logger = LoggerFactory.getLogger(RedisAspect.class); @Around("@annotation(redisCache)")
public Object doValid(ProceedingJoinPoint joinPoint, RedisCache redisCache) throws Throwable {
RedisUtils redisUtils=(RedisUtils) SpringUtil.getObject("com.carloan.common.redisTemplate.service.RedisUtils");
Object object=null;
String key=this.getKey(redisCache.type(),joinPoint);
try {
if (!redisUtils.exists(key)) {
object = joinPoint.proceed();
redisUtils.set(key, object);
logger.info("插入redis缓存OK---方法名称{},redis--key{}",joinPoint.getSignature().getName(),key);
} else {
object = redisUtils.get(key);
logger.info("获取redis缓存OK---方法名称{},redis--key{}",joinPoint.getSignature().getName(),key);
}
}catch (Exception e){
object = joinPoint.proceed();
logger.info("执行异常-RedisAspect---方法名称{0},redis--key{}",joinPoint.getSignature().getName(),key);
e.printStackTrace();
}
return object ;
} public String getKey(String type,ProceedingJoinPoint point) throws NoSuchMethodException {
StringBuffer sb = new StringBuffer();
Object[] arguments = point.getArgs();
Signature sig = point.getSignature();
MethodSignature msig = null;
msig = (MethodSignature) sig;
Object target = point.getTarget();
Method currentMethod = target.getClass().getMethod(msig.getName(), msig.getParameterTypes());
String methodName = currentMethod.getName();
String className = point.getTarget().getClass().getName();
sb.append(type).append(":").append(className).append(":").append(methodName);
if (arguments != null && arguments.length != 0) {
for (Object a : arguments) {
sb.append(":").append(StringUtils.substringBefore(a.toString(),"@"));
}
}
return sb.toString();
} }
调用