Vue 2.0 跨域解决方案

1、在使用vue开发的时候经常要涉及到跨域的问题，其实在vue cli中是有我们设置跨域请求的文件的。2、当跨域无法请求的时候我们可以修改工程下config文件夹下的index.js中的dev:{}部分。dev: {

env: require('./dev.env'),
port: 8080,
autoOpenBrowser: false,
assetsSubDirectory: 'static',
assetsPublicPath: '/',
proxyTable: {
'/api': {
target: 'http://api.douban.com/v2',
changeOrigin: true,
pathRewrite: {
'^/api': ''
}
}
},
// 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
}将target设置为我们需要访问的域名。3、然后在main.js中设置全局属性：Vue.prototype.HOST = '/api'4、至此，我们就可以在全局使用这个域名了，如下：var url = this.HOST + '/movie/in_theaters'
this.$http.get(url).then(res => {
this.movieList = res.data.subjects;
},res => {
console.info('调用失败');
});