小鹿线 zb d1 跨域

Posted 2022-11-25 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