EhCache找不到序列化器 [英] EhCache No serializer found

问题描述

我通过以下方式初始化缓存：

I am initializing my cache in the following way:

CacheManager cacheManager;

cacheManager = CacheManagerBuilder.newCacheManagerBuilder().build();
cacheManager.init();

Cache<String, SmsMessageDto> myCache = cacheManager.createCache("myCache", CacheConfigurationBuilder.newCacheConfigurationBuilder(String.class, SmsMessageDto.class)
    .withExpiry(Expirations.timeToLiveExpiration(new Duration(cacheDuration, TimeUnit.MINUTES)))
    .build());

这会给我以下警告：

org.ehcache.core.EhcacheManager - Could not create serializers for myCache
org.ehcache.spi.serialization.UnsupportedTypeException: No serializer found for type 'com.example.dto.SmsMessageDto'
    at org.ehcache.impl.internal.spi.serialization.DefaultSerializationProvider$AbstractProvider.getClassFor(DefaultSerializationProvider.java:271) ~[ehcache-3.0.0.rc1.jar:3.0.0.rc1]
    at org.ehcache.impl.internal.spi.serialization.DefaultSerializationProvider$TransientProvider.createSerializer(DefaultSerializationProvider.java:149) ~[ehcache-3.0.0.rc1.jar:3.0.0.rc1]
    at org.ehcache.impl.internal.spi.serialization.DefaultSerializationProvider$AbstractProvider.createValueSerializer(DefaultSerializationProvider.java:239) ~[ehcache-3.0.0.rc1.jar:3.0.0.rc1]
    at org.ehcache.impl.internal.spi.serialization.DefaultSerializationProvider.createValueSerializer(DefaultSerializationProvider.java:96) ~[ehcache-3.0.0.rc1.jar:3.0.0.rc1]
    at org.ehcache.core.EhcacheManager.getStore(EhcacheManager.java:455) [ehcache-3.0.0.rc1.jar:3.0.0.rc1]
    at org.ehcache.core.EhcacheManager.createNewEhcache(EhcacheManager.java:308) [ehcache-3.0.0.rc1.jar:3.0.0.rc1]
    at org.ehcache.core.EhcacheManager.createCache(EhcacheManager.java:261) [ehcache-3.0.0.rc1.jar:3.0.0.rc1]
    at org.ehcache.core.EhcacheManager.createCache(EhcacheManager.java:240) [ehcache-3.0.0.rc1.jar:3.0.0.rc1]
    at at.xcard.helper.SmsFailedCache.init(SmsFailedCache.java:45) [classes/:na]
    at at.xcard.SmsWorker.<init>(SmsWorker.java:49) [classes/:na]
    at at.xcard.Main.main(Main.java:36) [classes/:na]
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_25]
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_25]
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_25]
    at java.lang.reflect.Method.invoke(Method.java:483) ~[na:1.8.0_25]
    at com.intellij.rt.execution.application.AppMain.main(AppMain.java:147) [idea_rt.jar:na]

问题：如何说服EhCache使用com.example.dto.SmsMessageDto对象的toString方法？

QUESTION: how can I convince EhCache to use my toString method of the com.example.dto.SmsMessageDto object?

推荐答案

总之，这是不可能的。您必须在类SmsMessageDto中实现Serializable接口。它将为您的Serializable类创建一个序列化程序，并且异常不会再次显示。该答案基于以下链接 http://www.ehcache.org/documentation /3.1/serializers-copiers.html 部分捆绑的实现

In short it is not possible. You have to implement Serializable interface in your class SmsMessageDto. It will create a serializer for your Serializable class and the Exception will not display again. This answer was based in the following link http://www.ehcache.org/documentation/3.1/serializers-copiers.html section "Bundled implementations"

来自文档：
默认情况下，缓存管理器已预先配置带有经过特殊优化的序列化程序，该序列化程序可以按以下顺序处理以下类型：

From the documentation: "By default, cache managers are pre-configured with specially optimized Serializer that can handle the following types, in the following order:

java.io.Serializable

java.io.Serializable

java.lang.Long

java.lang.Long

java.lang.Integer

java.lang.Integer

java.lang.Float

java.lang.Float

java.lang.Double

java.lang.Double

java.lang.Character

java.lang.Character

java.lang.String

java.lang.String

byte []

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