切面类

切面类：
RedisCacheAspect.java

/**

• @author: Administrator
  */
  @Component
  @Aspect
  public class RedisCacheAspect {

  @Autowired
  private RedisUtil redisUtil;

  private static final ExpressionParser parser = new SpelExpressionParser();

  /**

  • 插入缓存

  • @param joinPoint

  • @param redisCache
    */
    @Before("@annotation(redisCache)")
    public void insertCache(JoinPoint joinPoint,RedisCache redisCache){
    // 获取参数
    Object[] args = joinPoint.getArgs();

    // 获取参数名字
    MethodSignature methodSignature = (MethodSignature)joinPoint.getSignature();
    String[] parameterNames = methodSignature.getParameterNames();
    // 获取 EvaluationContext
    StandardEvaluationContext evaluationContext = getEvaluationContext(parameterNames, args);
    // 获取 redis 存储 key
    if(!redisCache.batch()){
    String cacheKey = redisCache.cacheKey();
    String cacheValue = redisCache.cacheValue();
    // 解析 redis key
    Expression keyExpression = parser.parseExpression(cacheKey,ParserContext.TEMPLATE_EXPRESSION);
    String key = keyExpression.getValue(evaluationContext, String.class);

     // 解析 值
     Expression valueExpression = parser.parseExpression(cacheValue);
     Object value = valueExpression.getValue(evaluationContext);
     // 存入 缓存
     redisUtil.setKey(key,value);
    

    }else{
    // 获取 迭代对象
    String batchValue = redisCache.cacheValue();
    String itemName = redisCache.itemName();
    String cacheKey = redisCache.cacheKey();
    Iterable value = parser.parseExpression(batchValue).getValue(evaluationContext, Iterable.class);
    // 迭代生成 缓存
    for(Object it: value){
    evaluationContext.setVariable(itemName,it);
    // 解析 key
    String redisCacheKey = parser.parseExpression(cacheKey,ParserContext.TEMPLATE_EXPRESSION).getValue(evaluationContext, String.class);
    redisUtil.setKey(redisCacheKey,it);
    }
    }
    }

  public StandardEvaluationContext getEvaluationContext(String[] parameterNames,Object[] args){
  StandardEvaluationContext context = new StandardEvaluationContext();
  for(int i = 0; i< parameterNames.length ; i++){
  // 设置参数
  context.setVariable(parameterNames[i],args[i]);
  }
  return context;
  }
  }