使用redis，验证图片无法加载

来源：11-6 单点登录功能开发

慕前端7951612

2020-12-03

服务台报的错误是：
Servlet.service() for servlet [dispatcherServlet] in context with path [/system] 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 47.100.55.40:6379] with root cause
io.netty.channel.ConnectTimeoutException: connection timed out: /47.100.55.40:6379

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