前言

本文中提到的解决方案，源码地址在：perfect-ssm，希望可以帮你解决问题。

问题描述

在Spring与Redis整合过程中，出现了如下报错：



    org.springframework.data.redis.serializer.SerializationException: Cannot serialize; nested exception is                 org.springframework.core.serializer.support.SerializationFailedException: Failed to serialize object using DefaultSerializer; nested         exception is java.io.NotSerializableException: com.ssm.promotion.core.entity.Article

	at org.springframework.data.redis.serializer.JdkSerializationRedisSerializer.serialize(JdkSerializationRedisSerializer.java:92)

	at org.springframework.data.redis.cache.RedisCache$CacheValueAccessor.convertToBytesIfNecessary(RedisCache.java:375)

	at org.springframework.data.redis.cache.RedisCache$BinaryRedisCacheElement.<init>(RedisCache.java:408)

	at org.springframework.data.redis.cache.RedisCache.put(RedisCache.java:173)

	at org.springframework.data.redis.cache.RedisCache.put(RedisCache.java:157)

	at com.ssm.promotion.core.redis.RedisUtil.put(RedisUtil.java:31)

	at test.RedisTest.redisPutListArticleTest(RedisTest.java:77)

	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)

	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)

	at java.lang.reflect.Method.invoke(Method.java:498)

	at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:44)

	at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)

	at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41)

	at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:20)

	at org.springframework.test.context.junit4.statements.RunBeforeTestMethodCallbacks.evaluate(RunBeforeTestMethodCallbacks.java:75)

	at org.springframework.test.context.junit4.statements.RunAfterTestMethodCallbacks.evaluate(RunAfterTestMethodCallbacks.java:86)

	at org.springframework.test.context.junit4.statements.SpringRepeat.evaluate(SpringRepeat.java:84)

	at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:263)

	at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:254)

	at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:89)

	at org.junit.runners.ParentRunner$3.run(ParentRunner.java:231)

	at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:60)

	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:229)

	at org.junit.runners.ParentRunner.access$000(ParentRunner.java:50)

	at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:222)

	at org.springframework.test.context.junit4.statements.RunBeforeTestClassCallbacks.evaluate(RunBeforeTestClassCallbacks.java:61)

	at org.springframework.test.context.junit4.statements.RunAfterTestClassCallbacks.evaluate(RunAfterTestClassCallbacks.java:70)

	at org.junit.runners.ParentRunner.run(ParentRunner.java:292)

	at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.run(SpringJUnit4ClassRunner.java:193)

	at org.junit.runner.JUnitCore.run(JUnitCore.java:157)

	at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:68)

	at com.intellij.rt.execution.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:47)

	at com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:242)

	at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:70)

Caused by: org.springframework.core.serializer.support.SerializationFailedException: Failed to serialize object using DefaultSerializer; nested exception is java.io.NotSerializableException: com.ssm.promotion.core.entity.Article

	at org.springframework.core.serializer.support.SerializingConverter.convert(SerializingConverter.java:68)

	at org.springframework.core.serializer.support.SerializingConverter.convert(SerializingConverter.java:35)

	at org.springframework.data.redis.serializer.JdkSerializationRedisSerializer.serialize(JdkSerializationRedisSerializer.java:90)

	... 34 more

Caused by: java.io.NotSerializableException: com.ssm.promotion.core.entity.Article

	at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1184)

	at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:348)

	at java.util.ArrayList.writeObject(ArrayList.java:762)

	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)

	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)

	at java.lang.reflect.Method.invoke(Method.java:498)

	at java.io.ObjectStreamClass.invokeWriteObject(ObjectStreamClass.java:1028)

	at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1496)

	at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1432)

	at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1178)

	at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:348)

	at org.springframework.core.serializer.DefaultSerializer.serialize(DefaultSerializer.java:46)

	at org.springframework.core.serializer.support.SerializingConverter.convert(SerializingConverter.java:63)

	... 36 more

解决方案

通过异常栈可以得出有效信息：

Caused by: java.io.NotSerializableException: com.ssm.promotion.core.entity.Article

NotSerializable即为不可序列化的对象，对象Article不可序列化因此出现了此问题。

要缓存的JavaBean必须实现Serializable接口，因为Spring会将对象先序列化再存入 Redis

针对于此异常，修改对应的JavaBean对象即可，实现Serializable：

public class Article implements Serializable

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