Redis的Unable to connect to Redis和java.io.IOException: 远程主机强迫关闭了一个现有的连接问题的解决
学习项目xhr系统用到springboot + vue（https://github.com/lenve/vhr），文档中要求使用到RabbitMQ，但是从我搭建开发环境来看，是否配置RabbitMQ对登录以及系统中相关ui上的操作并不会影响，所有暂时先不管了，一步一步来吧。
1.下载redis。
下载zip版本的，直接解压就可以使用：https://github.com/MicrosoftArchive/redis/releases
2.启动项目。
到这一步，vue和springboot，redis都很顺利的启动成功了,但是我在登陆这个xhr系统的时候后台总是有报错，进入系统后看不到左边的侧边菜单。
出现问题都是与redis有关的。
第一个错。
org.springframework.data.redis.RedisConnectionFailureException: Unable to connect to Redis; nested exception is io.lettuce.core.RedisConnectionException: Unable to connect to 127.0.0.1:6379
at org.springframework.data.redis.connection.lettuce.LettuceConnectionFactory$SharedConnection.getNativeConnection(LettuceConnectionFactory.java:1106) ~[spring-data-redis-2.1.10.RELEASE.jar:2.1.10.RELEASE]
at org.springframework.data.redis.connection.lettuce.LettuceConnectionFactory$SharedConnection.getConnection(LettuceConnectionFactory.java:1085) ~[spring-data-redis-2.1.10.RELEASE.jar:2.1.10.RELEASE]
at org.springframework.data.redis.connection.lettuce.LettuceConnectionFactory.getSharedConnection(LettuceConnectionFactory.java:866) ~[spring-data-redis-2.1.10.RELEASE.jar:2.1.10.RELEASE]
at org.springframework.data.redis.connection.lettuce.LettuceConnectionFactory.getConnection(LettuceConnectionFactory.java:341) ~[spring-data-redis-2.1.10.RELEASE.jar:2.1.10.RELEASE]
at org.springframework.data.redis.cache.DefaultRedisCacheWriter.execute(DefaultRedisCacheWriter.java:238) ~[spring-data-redis-2.1.10.RELEASE.jar:2.1.10.RELEASE]
at org.springframework.data.redis.cache.DefaultRedisCacheWriter.get(DefaultRedisCacheWriter.java:109) ~[spring-data-redis-2.1.10.RELEASE.jar:2.1.10.RELEASE]
at org.springframework.data.redis.cache.RedisCache.lookup(RedisCache.java:82) ~[spring-data-redis-2.1.10.RELEASE.jar:2.1.10.RELEASE]
at org.springframework.cache.support.AbstractValueAdaptingCache.get(AbstractValueAdaptingCache.java:58) ~[spring-context-5.1.9.RELEASE.jar:5.1.9.RELEASE]
at org.springframework.cache.interceptor.AbstractCacheInvoker.doGet(AbstractCacheInvoker.java:73) ~[spring-context-5.1.9.RELEASE.jar:5.1.9.RELEASE]
at org.springframework.cache.interceptor.CacheAspectSupport.findInCaches(CacheAspectSupport.java:554) ~[spring-context-5.1.9.RELEASE.jar:5.1.9.RELEASE]
at org.springframework.cache.interceptor.CacheAspectSupport.findCachedItem(CacheAspectSupport.java:519) ~[spring-context-5.1.9.RELEASE.jar:5.1.9.RELEASE]
at org.springframework.cache.interceptor.CacheAspectSupport.execute(CacheAspectSupport.java:401) ~[spring-context-5.1.9.RELEASE.jar:5.1.9.RELEASE]
at org.springframework.cache.interceptor.CacheAspectSupport.execute(CacheAspectSupport.java:345) ~[spring-context-5.1.9.RELEASE.jar:5.1.9.RELEASE]
at org.springframework.cache.interceptor.CacheInterceptor.invoke(CacheInterceptor.java:61) ~[spring-context-5.1.9.RELEASE.jar:5.1.9.RELEASE]
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186) ~[spring-aop-5.1.9.RELEASE.jar:5.1.9.RELEASE]
at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:688) ~[spring-aop-5.1.9.RELEASE.jar:5.1.9.RELEASE]
at org.javaboy.vhr.service.MenuService$$EnhancerBySpringCGLIB$$f6f4444c.getAllMenusWithRole(<generated>) ~[classes/:na]
at org.javaboy.vhr.config.CustomFilterInvocationSecurityMetadataSource.getAttributes(CustomFilterInvocationSecurityMetadataSource.java:36) ~[classes/:na]
at org.springframework.security.access.intercept.AbstractSecurityInterceptor.beforeInvocation(AbstractSecurityInterceptor.java:197) ~[spring-security-core-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:124) ~[spring-security-web-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:91) ~[spring-security-web-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334) ~[spring-security-web-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:119) ~[spring-security-web-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334) ~[spring-security-web-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at org.springframework.security.web.session.SessionManagementFilter.doFilter(SessionManagementFilter.java:137) ~[spring-security-web-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334) ~[spring-security-web-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at org.springframework.security.web.authentication.AnonymousAuthenticationFilter.doFilter(AnonymousAuthenticationFilter.java:111) ~[spring-security-web-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334) ~[spring-security-web-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter.doFilter(SecurityContextHolderAwareRequestFilter.java:170) ~[spring-security-web-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334) ~[spring-security-web-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at org.springframework.security.web.savedrequest.RequestCacheAwareFilter.doFilter(RequestCacheAwareFilter.java:63) ~[spring-security-web-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334) ~[spring-security-web-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at org.springframework.security.web.session.ConcurrentSessionFilter.doFilter(ConcurrentSessionFilter.java:155) ~[spring-security-web-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334) ~[spring-security-web-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at org.springframework.security.web.authentication.AbstractAuthenticationProcessingFilter.doFilter(AbstractAuthenticationProcessingFilter.java:200) ~[spring-security-web-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334) ~[spring-security-web-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at org.springframework.security.web.authentication.logout.LogoutFilter.doFilter(LogoutFilter.java:116) ~[spring-security-web-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334) ~[spring-security-web-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at org.springframework.security.web.header.HeaderWriterFilter.doFilterInternal(HeaderWriterFilter.java:74) ~[spring-security-web-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:118) ~[spring-web-5.1.9.RELEASE.jar:5.1.9.RELEASE]
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334) ~[spring-security-web-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:105) ~[spring-security-web-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334) ~[spring-security-web-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at org.springframework.security.web.context.request.async.WebAsyncManagerIntegrationFilter.doFilterInternal(WebAsyncManagerIntegrationFilter.java:56) ~[spring-security-web-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:118) ~[spring-web-5.1.9.RELEASE.jar:5.1.9.RELEASE]
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334) ~[spring-security-web-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at org.springframework.security.web.FilterChainProxy.doFilterInternal(FilterChainProxy.java:215) ~[spring-security-web-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:178) ~[spring-security-web-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:357) ~[spring-web-5.1.9.RELEASE.jar:5.1.9.RELEASE]
at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:270) ~[spring-web-5.1.9.RELEASE.jar:5.1.9.RELEASE]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-9.0.24.jar:9.0.24]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-9.0.24.jar:9.0.24]
at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:99) ~[spring-web-5.1.9.RELEASE.jar:5.1.9.RELEASE]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:118) ~[spring-web-5.1.9.RELEASE.jar:5.1.9.RELEASE]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-9.0.24.jar:9.0.24]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-9.0.24.jar:9.0.24]
at org.springframework.web.filter.FormContentFilter.doFilterInternal(FormContentFilter.java:92) ~[spring-web-5.1.9.RELEASE.jar:5.1.9.RELEASE]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:118) ~[spring-web-5.1.9.RELEASE.jar:5.1.9.RELEASE]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-9.0.24.jar:9.0.24]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-9.0.24.jar:9.0.24]
at org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java:93) ~[spring-web-5.1.9.RELEASE.jar:5.1.9.RELEASE]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:118) ~[spring-web-5.1.9.RELEASE.jar:5.1.9.RELEASE]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-9.0.24.jar:9.0.24]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-9.0.24.jar:9.0.24]
at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:200) ~[spring-web-5.1.9.RELEASE.jar:5.1.9.RELEASE]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:118) ~[spring-web-5.1.9.RELEASE.jar:5.1.9.RELEASE]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-9.0.24.jar:9.0.24]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-9.0.24.jar:9.0.24]
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:202) ~[tomcat-embed-core-9.0.24.jar:9.0.24]
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96) [tomcat-embed-core-9.0.24.jar:9.0.24]
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:526) [tomcat-embed-core-9.0.24.jar:9.0.24]
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:139) [tomcat-embed-core-9.0.24.jar:9.0.24]
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92) [tomcat-embed-core-9.0.24.jar:9.0.24]
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:74) [tomcat-embed-core-9.0.24.jar:9.0.24]
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343) [tomcat-embed-core-9.0.24.jar:9.0.24]
at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:408) [tomcat-embed-core-9.0.24.jar:9.0.24]
at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66) [tomcat-embed-core-9.0.24.jar:9.0.24]
at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:860) [tomcat-embed-core-9.0.24.jar:9.0.24]
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1587) [tomcat-embed-core-9.0.24.jar:9.0.24]
at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) [tomcat-embed-core-9.0.24.jar:9.0.24]
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) [na:1.8.0_65]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) [na:1.8.0_65]
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) [tomcat-embed-core-9.0.24.jar:9.0.24]
at java.lang.Thread.run(Thread.java:745) [na:1.8.0_65]
修改的方式：修改配置文件host: 127.0.0.1使用实际的ip,如：183.52.36.13
我这种修改方法导致后台一直报下面这种【java.io.IOException: 远程主机强迫关闭了一个现有的连接。】错，坑呀。。。。。。
java.io.IOException: 远程主机强迫关闭了一个现有的连接。
at sun.nio.ch.SocketDispatcher.read0(Native Method) ~[na:1.8.0_65]
at sun.nio.ch.SocketDispatcher.read(SocketDispatcher.java:43) ~[na:1.8.0_65]
at sun.nio.ch.IOUtil.readIntoNativeBuffer(IOUtil.java:223) ~[na:1.8.0_65]
at sun.nio.ch.IOUtil.read(IOUtil.java:192) ~[na:1.8.0_65]
at sun.nio.ch.SocketChannelImpl.read(SocketChannelImpl.java:380) ~[na:1.8.0_65]
at io.netty.buffer.PooledByteBuf.setBytes(PooledByteBuf.java:247) ~[netty-buffer-4.1.39.Final.jar:4.1.39.Final]
at io.netty.buffer.AbstractByteBuf.writeBytes(AbstractByteBuf.java:1140) ~[netty-buffer-4.1.39.Final.jar:4.1.39.Final]
at io.netty.channel.socket.nio.NioSocketChannel.doReadBytes(NioSocketChannel.java:347) ~[netty-transport-4.1.39.Final.jar:4.1.39.Final]
at io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:148) ~[netty-transport-4.1.39.Final.jar:4.1.39.Final]
at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:697) [netty-transport-4.1.39.Final.jar:4.1.39.Final]
at io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:632) [netty-transport-4.1.39.Final.jar:4.1.39.Final]
at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:549) [netty-transport-4.1.39.Final.jar:4.1.39.Final]
at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:511) [netty-transport-4.1.39.Final.jar:4.1.39.Final]
at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:918) [netty-common-4.1.39.Final.jar:4.1.39.Final]
at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74) [netty-common-4.1.39.Final.jar:4.1.39.Final]
at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) [netty-common-4.1.39.Final.jar:4.1.39.Final]
at java.lang.Thread.run(Thread.java:745) [na:1.8.0_65]
后面尝试过很多改法，主要是修改redis配置文件redis.windows.conf，主要修改这几个配置tcp-keepalive，timeout，bind，protected-mode
最终修改成了这样，
tcp-keepalive 20
#bind 127.0.0.1
timeout 0
protected-mode yes
注释了配置bind 127.0.0.1，修改了tcp-keepalive的值为20,timeout和protected-mode值没有修改，保持为默认，我从网上看到有人说有默认值不一样的，所有现在都贴出来。
最后我把项目中配置redis的host改为了127.0.0.1.（不然后台就会一直报这个错：远程主机强迫关闭了一个现有的连接。）
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