:9528/#/students/index:1 Access to XMLHttpRequest at 'http://localhost:8080/javaWeb_war_exploded/getAllStudents.action' from origin 'http://localhost:9528' has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource. index.vue?6ced:35 Error: Network Error at createError (webpack-internal:///./node_modules/axios/lib/core/createError.js:16) at XMLHttpRequest.handleError (webpack-internal:///./node_modules/axios/lib/adapters/xhr.js:69) :8080/javaWeb_war_exploded/getAllStudents.action:1 Failed to load resource: net::ERR_FAILED

这是一个关于跨域请求的错误。当一个网站在浏览器中请求另一个域名下的资源时，浏览器会发送一个跨域请求。而出于安全考虑，浏览器会限制跨域请求的访问权限，只有在服务器端配置了相关的跨域访问策略才能正常访问。在这个错误中，服务器端没有配置允许该网站访问的策略，所以浏览器会拒绝访问。需要在服务器端配置相关的策略，或者使用代理等方式来解决。

相关问题

:9528/#/students/index:1 Access to XMLHttpRequest at 'http://localhost:8080/javaWeb_war_exploded/getAllStudents.action' from origin 'http://localhost:9528' has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource. index.vue?6ced:44 Error: Network Error at createError (webpack-internal:///./node_modules/axios/lib/core/createError.js:16) at XMLHttpRequest.handleError (webpack-internal:///./node_modules/axios/lib/adapters/xhr.js:69) :8080/javaWeb_war_exploded/getAllStudents.action:1 Failed to load resource: net::ERR_FAILED

这是一个跨域请求的错误，由于浏览器的安全策略，不同域名之间的请求是被禁止的。要解决这个问题，需要在服务器端设置CORS（跨域资源共享）策略，允许请求的来源。如果你是使用Java Web开发，可以在响应头中添加Access-Control-Allow-Origin字段，将其值设置为请求的源头。例如，如果你的请求源头是http://localhost:9528，响应头应该包含：Access-Control-Allow-Origin: http://localhost:9528。这样浏览器就会允许跨域请求了。