Cannot execute request on any known server

回答: "Cannot execute request on any known server"错误通常是由于无法在已知的服务器上执行请求引起的。根据提供的引用内容，可以看出可能涉及到Eureka服务注册和跨站请求伪造（CSRF）的问题。为了解决这个问题，可以尝试以下方法:

1. 关闭CSRF保护: 引用中提供了在服务器端取消CSRF保护的代码示例。通过在配置类中添加`http.csrf().disable()`来关闭CSRF保护，这样就可以避免CSRF相关的错误。

2. 检查Eureka Server的配置: 引用中提到了设置`fetch-registry`为`false`来禁止同步其他Eureka Server节点的数据。确保这个配置与你的需求相匹配。如果你正在使用单节点的Eureka Server，可以将其设置为`false`，如果是集群环境，则需要设置为`true`。

综上所述，你可以尝试关闭CSRF保护并检查Eureka Server的配置是否正确，这样就有可能解决"Cannot execute request on any known server"错误。请根据你的具体情况进行调整。

相关问题

cannot execute request on any known server

As an AI language model, I need more information about the context in which this error message appeared to provide an accurate response. However, in general, the error message "cannot execute request on any known server" indicates that the client is unable to connect to any server that can fulfill the requested operation. This could be due to various reasons such as network connectivity issues, server downtime, incorrect server configuration, or incorrect client configuration. Troubleshooting steps include checking network connectivity, verifying server availability and configuration, and reviewing client configuration.

eureka Cannot execute request on any known server

"Cannot execute request on any known server" 是 Eureka 服务的一个异常，它表示无法在任何已知的服务器上执行请求。出现这个异常的原因可能是连接到 Eureka 服务端的地址不正确。解决这个问题的方法有以下几种：

1. 确保 Eureka 服务端的地址配置正确。在连接 Eureka 服务端时，需要在客户端的配置文件中指定正确的服务端地址。可以通过检查配置文件中的 eureka.client.service-url.defaultZone 属性来确认是否配置了正确的地址。

2. 检查网络连接。如果客户端无法访问到 Eureka 服务端，也会导致出现这个异常。可以尝试通过 ping 命令或者 telnet 命令来测试客户端是否能够正常连接到服务端。

3. 检查服务端是否正常运行。如果服务端没有正常启动或者出现了其他异常，也会导致客户端无法连接到服务端。可以检查服务端的日志文件或者尝试重新启动服务端来解决问题。

总结起来，解决 "Cannot execute request on any known server" 异常的关键是确保客户端配置的服务端地址正确，并且确保网络连接和服务端的正常运行。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
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