Vue3跨域解决方案实例详解

vue项目配置代理

vue.config.js

const { defineConfig } = require('@vue/cli-service')
module.exports = defineConfig({
  transpileDependencies: true,
  devServer:{
    proxy:{
        '/api':{
            target: 'http://xx.xx.xxx.xx',
            changeOrigin:true,
            pathRewrite: {
                '^/api': ''
            }
        }
    }
 
}
})

如果是用vue3+ts则在vue.config.ts中添加以下代码：

  server: {
// 跨域的写法
    proxy: {
      '/api': {
        target: 'http://nvzu.xxx.cn/', // 实际请求地址
        changeOrigin: true,
        rewrite: (path) => path.replace(/^\/api/, ""),
      },
    },
  },
// 不跨域的写法
/*   server: {
    host: '192.168.1.195'
    // 0.0.0.0
  }, */

axios.js

"use strict";
 
import axios from "axios";
 
// Full config:  https://github.com/axios/axios#request-config
axios.defaults.baseURL = '/api' || '';
// axios.defaults.headers.common['Authorization'] = AUTH_TOKEN;
// axios.defaults.headers.post['Content-Type'] = 'application/x-www-form-urlencoded';
 
let config = {
// 这里的api就是获取configJS中的地址
  baseURL: '/api'
  // timeout: 60 * 1000, // Timeout
  // withCredentials: true, // Check cross-site Access-Control
};
 
const _axios = axios.create(config);
 
_axios.interceptors.request.use(
  function(config) {
    // Do something before request is sent
    return config;
  },
  function(error) {
    // Do something with request error
    return Promise.reject(error);
  }
);
 
// Add a response interceptor
_axios.interceptors.response.use(
  function(response) {
    // Do something with response data
    return response;
  },
  function(error) {
    // Do something with response error
    return Promise.reject(error);
  }
);
export default{
  install:function(app){
    app.config.globalProperties.axios = _axios;
    app.config.globalProperties.$translate = (key) =>{
      return key
    }
  }
}
/* Plugin.install = function(Vue) {
  Vue.axios = _axios;
  window.axios = _axios;
  Object.defineProperties(Vue.prototype, {
    axios: {
      get() {
        return _axios;
      }
    },
    $axios: {
      get() {
        return _axios;
      }
    },
  });
};
Vue.use(Plugin)
export default Plugin; */

页面使用proxy.axios.get/post进行获取跨域接口

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