ck-jesse / l2cache Goto Github PK

我正在使用您的仓库，目前发现它提供了二级缓存和缓存过期时间的支持，这对于许多应用场景来说是非常有用的。

在高并发和实时性要求较高的应用中，支持缓存双删可以提供更好的数据一致性，而不依赖于固定的过期时间。并且也可以与缓存过期时间结合使用，以满足不同的需求。

我想了解您是否考虑过在未来的版本中支持缓存双删策略，或者是否可以提供一些关于如何自行实现此策略的指导？任何关于此问题的建议或信息都将对我非常有帮助。

请问批量删除缓存是怎么操作的,假如我只更新了商品表的一个字段,但别的缓存的key是商品名和简介,没有商品id,这种能够删除吗,如果能的话,代码是怎么实现的

本来以为是框架自带的，原来是接入了jd的hotkey.哈哈哈

首先，我衷心感谢每一位继续关心和使用 L2Cache 的人。为了更好地倾听用户的声音，吸引更多的人使用和参与，我们期待您提交评论，包括：

• 您的公司、学校或组织
• 您所在的城市和国家
• 您的联系方式：微博、电子邮件、微信（至少一个）
• 您使用l2cache用于哪些业务场景
• 您可以参考以下示例来提供您的信息

公司：xxx
网址：https://github.com/ck-jesse/l2cache
地点：**广州
联系方式：[email protected]
场景：电商平台首页、商品详情页缓存

org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'configurationPropertiesBeans' defined in class path resource [org/springframework/cloud/autoconfigure/ConfigurationPropertiesRebinderAutoConfiguration.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.cloud.context.properties.ConfigurationPropertiesBeans]: Factory method 'configurationPropertiesBeans' threw exception; nested exception is java.lang.NoClassDefFoundError: org/springframework/boot/context/properties/ConfigurationBeanFactoryMetadata
at org.springframework.beans.factory.support.ConstructorResolver.instantiate(ConstructorResolver.java:658) ~[spring-beans-5.3.24.jar:5.3.24]
at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:486) ~[spring-beans-5.3.24.jar:5.3.24]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1352) ~[spring-beans-5.3.24.jar:5.3.24]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1195) ~[spring-beans-5.3.24.jar:5.3.24]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:582) ~[spring-beans-5.3.24.jar:5.3.24]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:542) ~[spring-beans-5.3.24.jar:5.3.24]
at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:335) ~[spring-beans-5.3.24.jar:5.3.24]
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234) ~[spring-beans-5.3.24.jar:5.3.24]
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:333) ~[spring-beans-5.3.24.jar:5.3.24]
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:213) ~[spring-beans-5.3.24.jar:5.3.24]
at org.springframework.context.support.PostProcessorRegistrationDelegate.registerBeanPostProcessors(PostProcessorRegistrationDelegate.java:270) ~[spring-context-5.3.24.jar:5.3.24]
at org.springframework.context.support.AbstractApplicationContext.registerBeanPostProcessors(AbstractApplicationContext.java:762) ~[spring-context-5.3.24.jar:5.3.24]
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:567) ~[spring-context-5.3.24.jar:5.3.24]
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:731) [spring-boot-2.7.6.jar:2.7.6]
at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:408) [spring-boot-2.7.6.jar:2.7.6]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:307) [spring-boot-2.7.6.jar:2.7.6]
at org.springframework.boot.builder.SpringApplicationBuilder.run(SpringApplicationBuilder.java:164) ~[spring-boot-2.7.6.jar:2.7.6]
at org.springframework.cloud.bootstrap.BootstrapApplicationListener.bootstrapServiceContext(BootstrapApplicationListener.java:191) ~[spring-cloud-context-2.1.0.RELEASE.jar:2.1.0.RELEASE]
at org.springframework.cloud.bootstrap.BootstrapApplicationListener.onApplicationEvent(BootstrapApplicationListener.java:105) ~[spring-cloud-context-2.1.0.RELEASE.jar:2.1.0.RELEASE]
at org.springframework.cloud.bootstrap.BootstrapApplicationListener.onApplicationEvent(BootstrapApplicationListener.java:71) ~[spring-cloud-context-2.1.0.RELEASE.jar:2.1.0.RELEASE]
at org.springframework.context.event.SimpleApplicationEventMulticaster.doInvokeListener(SimpleApplicationEventMulticaster.java:176) ~[spring-context-5.3.24.jar:5.3.24]
at org.springframework.context.event.SimpleApplicationEventMulticaster.invokeListener(SimpleApplicationEventMulticaster.java:169) ~[spring-context-5.3.24.jar:5.3.24]
at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:143) ~[spring-context-5.3.24.jar:5.3.24]
at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:131) ~[spring-context-5.3.24.jar:5.3.24]
at org.springframework.boot.context.event.EventPublishingRunListener.environmentPrepared(EventPublishingRunListener.java:85) ~[spring-boot-2.7.6.jar:2.7.6]
at org.springframework.boot.SpringApplicationRunListeners.lambda$environmentPrepared$2(SpringApplicationRunListeners.java:66) ~[spring-boot-2.7.6.jar:2.7.6]
at java.util.ArrayList.forEach(ArrayList.java:1259) ~[na:1.8.0_352]
at org.springframework.boot.SpringApplicationRunListeners.doWithListeners(SpringApplicationRunListeners.java:120) ~[spring-boot-2.7.6.jar:2.7.6]
at org.springframework.boot.SpringApplicationRunListeners.doWithListeners(SpringApplicationRunListeners.java:114) ~[spring-boot-2.7.6.jar:2.7.6]
at org.springframework.boot.SpringApplicationRunListeners.environmentPrepared(SpringApplicationRunListeners.java:65) ~[spring-boot-2.7.6.jar:2.7.6]
at org.springframework.boot.SpringApplication.prepareEnvironment(SpringApplication.java:343) [spring-boot-2.7.6.jar:2.7.6]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:301) [spring-boot-2.7.6.jar:2.7.6]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1303) [spring-boot-2.7.6.jar:2.7.6]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1292) [spring-boot-2.7.6.jar:2.7.6]
at cn.zhaown.todolist2.Todolist2Application.main(Todolist2Application.java:15) [classes/:na]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_352]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_352]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_352]
at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_352]
at org.springframework.boot.devtools.restart.RestartLauncher.run(RestartLauncher.java:49) [spring-boot-devtools-2.7.6.jar:2.7.6]
Caused by: org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.cloud.context.properties.ConfigurationPropertiesBeans]: Factory method 'configurationPropertiesBeans' threw exception; nested exception is java.lang.NoClassDefFoundError: org/springframework/boot/context/properties/ConfigurationBeanFactoryMetadata
at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:185) ~[spring-beans-5.3.24.jar:5.3.24]
at org.springframework.beans.factory.support.ConstructorResolver.instantiate(ConstructorResolver.java:653) ~[spring-beans-5.3.24.jar:5.3.24]
... 39 common frames omitted
Caused by: java.lang.NoClassDefFoundError: org/springframework/boot/context/properties/ConfigurationBeanFactoryMetadata
at org.springframework.cloud.autoconfigure.ConfigurationPropertiesRebinderAutoConfiguration.configurationPropertiesBeans(ConfigurationPropertiesRebinderAutoConfiguration.java:51) ~[spring-cloud-context-2.1.0.RELEASE.jar:2.1.0.RELEASE]
at org.springframework.cloud.autoconfigure.ConfigurationPropertiesRebinderAutoConfiguration$$EnhancerBySpringCGLIB$$9b4c5e86.CGLIB$configurationPropertiesBeans$1() ~[spring-cloud-context-2.1.0.RELEASE.jar:2.1.0.RELEASE]
at org.springframework.cloud.autoconfigure.ConfigurationPropertiesRebinderAutoConfiguration$$EnhancerBySpringCGLIB$$9b4c5e86$$FastClassBySpringCGLIB$$d19c4827.invoke() ~[spring-cloud-context-2.1.0.RELEASE.jar:2.1.0.RELEASE]
at org.springframework.cglib.proxy.MethodProxy.invokeSuper(MethodProxy.java:244) ~[spring-core-5.3.24.jar:5.3.24]
at org.springframework.context.annotation.ConfigurationClassEnhancer$BeanMethodInterceptor.intercept(ConfigurationClassEnhancer.java:331) ~[spring-context-5.3.24.jar:5.3.24]
at org.springframework.cloud.autoconfigure.ConfigurationPropertiesRebinderAutoConfiguration$$EnhancerBySpringCGLIB$$9b4c5e86.configurationPropertiesBeans() ~[spring-cloud-context-2.1.0.RELEASE.jar:2.1.0.RELEASE]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_352]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_352]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_352]
at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_352]
at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:154) ~[spring-beans-5.3.24.jar:5.3.24]
... 40 common frames omitted
Caused by: java.lang.ClassNotFoundException: org.springframework.boot.context.properties.ConfigurationBeanFactoryMetadata
at java.net.URLClassLoader.findClass(URLClassLoader.java:387) ~[na:1.8.0_352]
at java.lang.ClassLoader.loadClass(ClassLoader.java:418) ~[na:1.8.0_352]
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:352) ~[na:1.8.0_352]
at java.lang.ClassLoader.loadClass(ClassLoader.java:351) ~[na:1.8.0_352]
... 51 common frames omitted

本来以为这个是用来避免缓存穿透的，但好像没有起到相应的作用？

假设提供了一个TenantContextHolder.getTenantId()工具，在什么位置使用比较合适呢

1、扩展多租户机制后，keys需要进行删选，特别的是 clear 方法，会清空所有的数据，所以需要添加，遍历 keys的能力，让第三方自行扩展过滤。oschina j2cache也有keys接口输出
2、redis 使用 spring data redis的 connectionFactory 就可以了，不要自己再去新建。既然是基于SpringBoot 就应该充分利用SpringBoot自身的能力和资源

还在维护吗？更新频率有点低呀

目前项目使用2.7.5版本的springboot
启动报错
Caused by: java.lang.ClassNotFoundException: org.springframework.boot.context.properties.ConfigurationBeanFactoryMetadata
at java.net.URLClassLoader.findClass(URLClassLoader.java:387)
at java.lang.ClassLoader.loadClass(ClassLoader.java:418)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:355)
at java.lang.ClassLoader.loadClass(ClassLoader.java:351)

cn.weeget.hotkey:weeget-infinite-hotkey-client 公网缺包

私服貌似已经down了，该包下载不了

看到了有redis广播功能，建议提醒一下使用者关注 client-output-buffer-limit pubsub参数的配置。防止丢消息

public void run(Timeout timeout) throws Exception {
if (future != null
&& (future.cancel(false) || !future.isSuccess())) {
ctx.channel().close();
if (future.cause() != null) {
log.error("Unable to send PING command over channel: " + ctx.channel(), future.cause());
}
log.debug("channel: {} closed due to PING response timeout set in {} ms", ctx.channel(), config.getPingConnectionInterval());
} else {
sendPing(ctx);
}
}
}, config.getPingConnectionInterval(), TimeUnit.MILLISECONDS);
在这段代码中 。如果ping成功了后面会再次走else方法ping redis .如果ping失败了则会关闭session并且 5秒重连机制。请问下这个是设定如此还是代码bug。频繁ping会不会增加服务器的性能消耗

jar 包下载不了