在src目录中创建 setupProxy.js文件
添加如下配置

const createProxyMiddleware = require('http-proxy-middleware')

module.exports = function (app) {
    app.use(
        createProxyMiddleware('/api', {
            target: 'http://localhost:5000',
            changeOrigin: true,
            pathRewrite: {
                '^/api': ''
            }
        })
    )
}