跨域问题(....as been blocked by CORS policy）
前端报错信息 前端 跨越报错的缘由 跨越流程 跨域会发送2次请求，java 是预检请求， （OPTIONS 方式发送） 是发送真实请求 跨越解决 方式一： react 方式二： web 代码示例：spring 本人是给网关添加一个过滤器，解决全部的跨域问题（也能够给具体某个服务添加跨域）跨域 @Configuration
public class CorsConfig {
// Spri
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- 1. vue ‘been blocked by CORS policy’跨域问题
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