Springboot 2.6集成redis maven报错
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-redis</artifactId>
</dependency>当加这个配置后，pom.xml的第一行总是报错：
Description Resource Path Location Typeio.lettuce:lettuce-core:jar:6.1.8.RELEASE failed to transfer from https://repo.maven.apache.org/maven2 during a previous attempt. This failure was cached in the local repository and resolution is not reattempted until the update interval of central has elapsed or updates are forced. Original error: Could not transfer artifact io.lettuce:lettuce-core:jar:6.1.8.RELEASE from/to central (https://repo.maven.apache.org/maven2): The operation was cancelled.org.eclipse.aether.transfer.ArtifactTransferException: io.lettuce:lettuce-core:jar:6.1.8.RELEASE failed to transfer from https://repo.maven.apache.org/maven2 during a previous attempt. This failure was cached in the local repository and resolution is not reattempted until the update interval of central has elapsed or updates are forced. Original error: Could not transfer artifact io.lettuce:lettuce-core:jar:6.1.8.RELEASE from/to central (https://repo.maven.apache.org/maven2): The operation was cancelled. at org.eclipse.aether.internal.impl.DefaultUpdateCheckManager.newException(DefaultUpdateCheckManager.java:225) at org.eclipse.aether.internal.impl.DefaultUpdateCheckManager.checkArtifact(DefaultUpdateCheckManager.java:189) at org.eclipse.aether.internal.impl.DefaultArtifactResolver.gatherDownloads(DefaultArtifactResolver.java:574) at org.eclipse.aether.internal.impl.DefaultArtifactResolver.performDownloads(DefaultArtifactResolver.java:484) at org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolve(DefaultArtifactResolver.java:402) at org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolveArtifacts(DefaultArtifactResolver.java:229) at org.eclipse.aether.internal.impl.DefaultRepositorySystem.resolveDependencies(DefaultRepositorySystem.java:340) at org.apache.maven.project.DefaultProjectDependenciesResolver.resolve(DefaultProjectDependenciesResolver.java:191) at org.apache.maven.project.DefaultProjectBuilder.resolveDependencies(DefaultProjectBuilder.java:227) at org.apache.maven.project.DefaultProjectBuilder.build(DefaultProjectBuilder.java:200) at org.apache.maven.project.DefaultProjectBuilder.build(DefaultProjectBuilder.java:124124)
看了意思是获取不到最新包，因为maven之前已经下载过，需要删除m2库里的最新玩意，
找到自己仓库，我的是C:\users\ckw\.m2\repository>,
在这个目录下，打开cmd，执行：
for /r %i in (*.lastUpdated) do del %i
执行这个批处理，
删完后，按下面图，update一把就好了
SpringBoot集成Redis连接不上
问题描述
初学SpringBoot
当进行SpringBoot集成Redis时。测试向redis中添加String类型的数据，key=name , value = zlw。
但出现了一下错误：（Whitelabel Error Page）
看控制台输出发现，大致应该是redis没有连接成功。
Servlet.service() for servlet [dispatcherServlet] in context with path [] threw exception [Request processing failed; nested exception is org.springframework.data.redis.RedisConnectionFailureException: Unable to connect to Redis; nested exception is io.lettuce.core.RedisConnectionException: Unable to connect to 192.168.86.129/<unresolved>:6379] with root cause
上网搜索了好多这个问题的错误，但好像都没有解决，不是自己的错误，但后来回想到，学习linux的时候，想要连接成功必须要关闭linux的防火墙才行。。。
试一试
可以看到防火墙已经关闭了，
哇~有新发现了，虽然页面还是没有变化，但控制台的信息发生了变化。
提示：
WRONGPASS invalid username-password pair or user is disabled.
这应该是我的redis密码有问题。。
原来是我的密码加上了引号
记住：密码要去掉引号！！！
去掉双引号之后再次访问，成功！！
