vue中如何配置proxy代理

<template>
  <div id="app">
    <h1>hello Vue cli</h1>
    <HelloWorld></HelloWorld>
  </div>
</template><script>
/* @ => src */
// import HelloWorld from "./components/HelloWorld.vue";
import HelloWorld from "@/components/HelloWorld.vue";
/* 1. 引入 axios 请求库 */
import axios from "axios";
/* 组件的配置项 */
export default {
  created() {
    // axios
    //   .get("song/url?id=504835560")
    //   .then((res) => {
    //     console.log(res);
    //   });
    axios
      .get("/song/url?id=504835560")
      .then((res) => {
        console.log(res);
      });
    axios.get("/api/s/getHotProducts").then(res=>{
      console.log(res);
    })
    
  },
  name: "App",
  components: {
     HelloWorld
  },
};
</script><style>
#app {
  font-family: Avenir, Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-align: center;
  color: #2c3e50;
  margin-top: 60px;
}
</style>

module.exports = {
  lintOnSave: false,
  devServer: {
    proxy: "https://apimusic.linweiqin.com/"
  }
};

module.exports = {
  lintOnSave: false,
  //   devServer: {
  //     proxy: "https://apimusic.linweiqin.com/"
  //   }
  devServer: {
    proxy: {
      "/song": {
        target: "https://apimusic.linweiqin.com/",
        // changeOrigin: true,
      },
      "/api": {
        target: "http://s.linweiqin.com/",
      },
    },
  },
};

module.exports = {
    publicPath: "/",
    devServer: {
        proxy: {
            "/api": {
                // 代理名称   凡是使用/api开头的地址都是用此代理
                target: "http://1.2.3.4:5000/", // 需要代理访问的api地址
                changeOrigin: true, // 允许跨域请求
                pathRewrite: {
                    // 重写路径，替换请求地址中的指定路径
                    "^/api": "/", // 将请求地址中的/api替换为空，也就是请求地址中不会包含/api/
                },
            },
        },
    },
};