HTTP 404 错误：POST http://localhost:8080/api/logn/logout 无法访问 - 解决方案

"POST http://localhost:8080/api/logn/logout 404 (Not Found)\nindex.js?t=1692069274278:42 \n{data: '', status: 404, statusText: 'Not Found', headers: AxiosHeaders, config: {…}, …}\nconfig: {transitional: {…}, adapter: Array(2), transformRequest: Array(1), transformResponse: Array(1), timeout: 30000, …}\ndata: ""\nheaders: AxiosHeaders {access-control-allow-origin: '*', connection: 'close', content-length: '0', date: 'Tue, 15 Aug 2023 03:14:42 GMT', server: 'nginx/1.18.0'}\nrequest: XMLHttpRequest {onreadystatechange: null, readyState: 4, timeout: 30000, withCredentials: false, upload: XMLHttpRequestUpload, …}\nstatus: 404\nstatusText: "Not Found"\n[[Prototype]]: Object\n"这个错误意味着在发送HTTP POST请求到http://localhost:8080/api/logn/logout时，服务器返回了404错误（Not Found）。这意味着请求的资源或路径不存在。可能有几个原因导致这个错误：\n1. 请求的URL路径错误，确保路径正确。\n2. 服务器上没有相应的路由或API来处理该请求，确保服务器端代码正确配置了对应的路由或API。\n3. 服务器未启动或未监听8080端口，确保服务器在运行并监听正确的端口。\n请根据具体情况检查并解决上述问题。