springboot项目中使用spring-data-Redis对map序列化时报错

错误信息：

java.lang.ClassCastException: java.lang.Integer cannot be cast to java.lang.String
    at org.springframework.data.redis.serializer.StringRedisSerializer.serialize(StringRedisSerializer.java:35)
    at org.springframework.data.redis.core.AbstractOperations.rawHashValue(AbstractOperations.java:184)
    at org.springframework.data.redis.core.DefaultHashOperations.put(DefaultHashOperations.java:175)
    at com.xxx.service.impl.CacheServiceImpl.setCacheMap(CacheServiceImpl.java:670)
    at com.xxx.service.impl.CacheServiceImpl.setCacheMap(CacheServiceImpl.java:683)
    at com.xxx.ws.StatusSocketClient.onMessage(StatusSocketClient.java:104)
    at sun.reflect.GeneratedMethodAccessor410.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:45005)
    at java.lang.reflect.Method.invoke(Method.java:498)
    at org.apache.tomcat.websocket.pojo.PojoMessageHandlerWholeBase.onMessage(PojoMessageHandlerWholeBase.java:80)
    at org.apache.tomcat.websocket.WsFrameBase.sendMessageText(WsFrameBase.java:394)
    at org.apache.tomcat.websocket.WsFrameBase.processDataText(WsFrameBase.java:495)
    at org.apache.tomcat.websocket.WsFrameBase.processData(WsFrameBase.java:294)
    at org.apache.tomcat.websocket.WsFrameBase.processInputBuffer(WsFrameBase.java:133)
    at org.apache.tomcat.websocket.WsFrameClient.processSocketRead(WsFrameClient.java:95)
    at org.apache.tomcat.websocket.WsFrameClient.resumeProcessing(WsFrameClient.java:209)
    at org.apache.tomcat.websocket.WsFrameClient.access$300(WsFrameClient.java:31)
    at org.apache.tomcat.websocket.WsFrameClient$WsFrameClientCompletionHandler.doResumeProcessing(WsFrameClient.java:186)
    at org.apache.tomcat.websocket.WsFrameClient$WsFrameClientCompletionHandler.completed(WsFrameClient.java:163)
    at org.apache.tomcat.websocket.WsFrameClient$WsFrameClientCompletionHandler.completed(WsFrameClient.java:148)
    at sun.nio.ch.Invoker.invokeUnchecked(Invoker.java:126)
    at sun.nio.ch.Invoker$2.run(Invoker.java:218)
    at sun.nio.ch.AsynchronousChannelGroupImpl$1.run(AsynchronousChannelGroupImpl.java:112)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)

找到redis相关配置：发现hash的键值序列化设置如下

/*hash字符串序列化方法*/
template.setHashKeySerializer(new StringRedisSerializer());
template.setHashValueSerializer(new StringRedisSerializer());

修改后如下

template.setHashValueSerializer(new JdkSerializationRedisSerializer());

参考来源：https://blog.csdn.net/qq_26525215/article/details/69367588