Question

当我使用默认键（例如-

）时，Spring没有缓存我的函数

@PostMapping("getDashboardDataNew")
@Cacheable(value="myDash")
public DashboardDto getHomeDashboardDataNew(@RequestBody DashboardRequest dashboardRequest) {
    LOGGER.info(" Get All the Dashboard Information : ");
    //code
    return dashboardDto;
}

但是当我使用sPEL提供自定义密钥时，它会缓存响应，例如。

@PostMapping("getDashboardDataNew")
@Cacheable(value="myDash", key="#dashboardRequest.level")
public DashboardDto getHomeDashboardDataNew(@RequestBody DashboardRequest dashboardRequest) {
    LOGGER.info(" Get All the Dashboard Information : ");
    //code
    return dashboardDto;
}

请求有效载荷始终为-

{“ fromDate”：null，“ toDate”：null，“ theme”：null，“ activity”：null，“ level”：1，“ levelValue”：null，“ state”：null，“ district”：空}

即使使用eclipse自动生成equals和hashcode之后，spring也不缓存该值。以下是自动生成的代码

@Override
public int hashCode() {
    final int prime = 31;
    int result = 1;
    result = prime * result + ((activity == null) ? 0 : activity.hashCode());
    result = prime * result + ((fromDate == null) ? 0 : fromDate.hashCode());
    result = prime * result + ((level == null) ? 0 : level.hashCode());
    result = prime * result + ((levelValue == null) ? 0 : levelValue.hashCode());
    result = prime * result + ((organizer == null) ? 0 : organizer.hashCode());
    result = prime * result + ((theme == null) ? 0 : theme.hashCode());
    result = prime * result + ((toDate == null) ? 0 : toDate.hashCode());
    return result;
}

@Override
public boolean equals(Object obj) {
    if (this == obj)
        return true;
    if (obj == null)
        return false;
    if (getClass() != obj.getClass())
        return false;
    DashboardRequest other = (DashboardRequest) obj;
    if (activity == null) {
        if (other.activity != null)
            return false;
    } else if (!activity.equals(other.activity))
        return false;
    if (fromDate == null) {
        if (other.fromDate != null)
            return false;
    } else if (!fromDate.equals(other.fromDate))
        return false;
    if (level == null) {
        if (other.level != null)
            return false;
    } else if (!level.equals(other.level))
        return false;
    if (levelValue == null) {
        if (other.levelValue != null)
            return false;
    } else if (!levelValue.equals(other.levelValue))
        return false;
    if (organizer == null) {
        if (other.organizer != null)
            return false;
    } else if (!organizer.equals(other.organizer))
        return false;
    if (theme == null) {
        if (other.theme != null)
            return false;
    } else if (!theme.equals(other.theme))
        return false;
    if (toDate == null) {
        if (other.toDate != null)
            return false;
    } else if (!toDate.equals(other.toDate))
        return false;
    return true;
}

我没有更改请求有效载荷。

Answer 1

默认情况下，当不提供任何键时，Spring缓存依赖于SimpleKeyGenerator，后者依赖于参数的哈希码来生成键。您可以检查此link。

Answer 2

我弄清楚这里出了什么问题。我正在函数内部某处更改请求有效负载的属性之一。

dashboardRequest.setLevel（dashboardRequest.getLevel（）+ 1）;

并且当方法执行使用修改后的对象而不是参数中提供的值后，Spring缓存AOP将值放入缓存中，从而有效地使我的密钥不同于请求有效负载生成的密钥。希望这对某人有帮助。

Spring Cacheable无法使用默认密钥

2 个答案: