nodejs实现文件上传

在使用ant-design的upload上传文件时，前端很好实现，那么我们如何实现node服务端呢？

服务端文件上传实现

var express = require('express');
var fs = require('fs');
var path = require('path');
var multipart = require('connect-multiparty');
var router = express.Router();

/* GET App home page. */
router.get('*', function (req, res) {
  res.sendFile(path.resolve('./', 'index.html'));
});

router.post('/upload', multipart(), function (req, res) {
  //获得文件名
  var filename = req.files.files.originalFilename || path.basename(req.files.files.path);

  //复制文件到指定路径
  var targetPath = './public/uploads/' + filename;

  //复制文件流
  fs.createReadStream(req.files.files.path).pipe(fs.createWriteStream(targetPath));

  //响应ajax请求，告诉它图片传到哪了
  res.json({ code: 200, data: { url: 'http://' + req.headers.host + '/public/uploads/' + filename } });
});

前端代码

class ManageWork extends React.Component {

  handleUpload(e) {
    if (e.file.status === 'done') {
      this.setState({ projectImage: e.file.response.data.url })
    }
  }

  render() {
    return (
        <div>
            <Upload name="files" action="/upload" listType="picture"
                  onChange={e=>this.handleUpload(e)}>
                  <Button type="ghost">
                    <Icon type="upload" /> 点击上传
                  </Button>
                </Upload>
                <a href={this.state.projectImage} target="_blank" className="upload-example">
                  <img src={this.state.projectImage} />
                  <span>缩略图</span>
                </a>
        </div>
    )
  }

}