在vue.js开发环境中,8080便是端口号,这也是使用Vue脚手架创建的项目运行时的默认的端口。那么怎么修改默认端口?
1、Vue 2.x
config文件夹中有一个index.js其中部分内容如下,port即为端口号,在这里更改即可。
module.exports = { dev: { env: require('./dev.env'), port: 8080, // 端口号 assetsSubDirectory: 'static', assetsPublicPath: '/', proxyTable: {}, // CSS Sourcemaps off by default because relative paths are "buggy" // with this option, according to the CSS-Loader README // (https://github.com/webpack/css-loader#sourcemaps) // In our experience, they generally work as expected, // just be aware of this issue when enabling this option. cssSourceMap: false, } };
2、Vue 3.x
Vue 3.x中修改端口号则需要在项目根目录下创建一个vue.config.js,内容如下。
module.exports = { devServer: { port: 8080, // 端口号 } };
起因
Access to XMLHttpRequest at 'http://localhost:8080/sockjs-node/info?t=1565711501046' from origin 'http://192.168.0.104:8080' has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource.
localhost:8080/sockjs-node/info?t=1565711501046:1 Failed to load resource: net::ERR_FAILED
开了两个项目,一个是Vue2.x,另一个是Vue3.x,看来一下两个的端口号都是8080,冲突了。
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