小鹿线 zb d1 跨域

Posted 2021-07-22 Kooklen_xh

router.get('/api/zhangsan',function (req,res,next){
  res.json({
    code:0,
    a:1
  })
})```

```javascript
<script>
import axios from 'axios'
export default {
created(){
  axios({
    url:'http://http://localhost:3000/api/zhangsan'
  }).then(res=>{
    console.log(res);
  })
}}
</script>

odule.exports = {
    devServer: {
        proxy: {
            '/api': {
                target: 'http://localhost:3000/',
                ws: true,
                changeOrigin: true
            },
            '/foo': {
                target: '<other_url>'
            }
        }
    }
}```

```javascript
router.all('*', function (req, res, next) {
  res.header('Access-Control-Allow-Origin', '*');
  //Access-Control-Allow-Headers ,可根据浏览器的F12查看,把对应的粘贴在这里就行
  res.header('Access-Control-Allow-Headers', 'Content-Type');
  res.header('Access-Control-Allow-Methods', '*');
  res.header('Content-Type', 'application/json;charset=utf-8');
  next();
});

两种方法解决跨域问题