This project was bootstrapped with Create React App. Below you will find some information on how to perform common tasks. You can find the most recent version of this guide here. Updating to New Releases Create React App is divided into two packages:…
1. 首先复习一下跨域的几种主要方式: a. jsonp b. cors c. 代理服务(开发环境下常用) 2. 代理服务器:可实现转发请求.即浏览器在3000端口发出请求,通过代理转发,将请求发送给5000端口的服务:5000端口的服务处理后,将响应返回为3000端口. create-react-app脚手架的开发环境自带代理服务器,只需手动配置以下代理转发的地址端口.在package.json文件中添加: "proxy": "http://localhost:5000&q…
create-react-app version 2.0 added a lot of new features. One of the new features is upgrading to Babel Version 7, which enables the Short Syntax of React Fragments. Fragments have been a feature of React since version 16.2, but the Short Syntax hasn…
create-react-app version 2.0 added a lot of new features. One of the new features is added the svgr webpack loader to wrap SVGs in React components as a named export. This let’s you either grab the filename from the default export or grab a wrapped S…
{ test: cssRegex, exclude: cssModuleRegex, use: getStyleLoaders({ importLoaders: 1, sourceMap: isEnvProduction && shouldUseSourceMap, modules:false }), // Don't consider CSS imports dead code even if the // containing package claims to have no sid…
1.创建Api项目 我用的是VS2019 Core3.1 .打开Vs2019 创建Asp.Net Core Web应用程序命名CoreWebApi 创建选择API 在Controller文件夹下面添加一个Api控制器 FileUp,修改Api的路由 [Route("api/[controller]/[action]")] 这样就可以访问到具体的某一个了 写一个测试 api using System; using System.Collections.Generic; using S…
1.CORS中间件处理跨源请求.以下代码为具有指定源的整个应用程序启用CORS: public void Configure(IApplicationBuilder app, IHostingEnvironment env) { if (env.IsDevelopment()) { app.UseDeveloperExceptionPage(); } else { // The default HSTS value is 30 days. You may want to change this…