Next.js-express 动态路由导致页面重新加载

Question

我有一个使用快速自定义浏览器使用 next js 创建的博客应用程序。当我单击链接以路由到“/blog/article-1”时，它会在到达该页面时刷新页面。如何避免这种情况？

server.js 文件

const express = require('express');
const next = require('next');
const port = 80;
const dev = process.env.NODE_ENV !== 'production';
const app = next({ dev });
const handle = app.getRequestHandler();
const compression = require('compression');

app.prepare()
  .then(() => {
    const server = express();
    server.use(compression());
    server.get('/blog', (req, res) => app.render(req, res, '/blog', req.query));
    server.get('/blog/:postslug', (req, res) => {
      const params = { postslug: req.params.postslug }
      return app.render(req, res, '/blog/post', params)
    });

    server.get('*', (req, res) => handle(req, res));

    server.listen(port, (err) => {
      if (err) throw err;
      console.log(`> Ready on http://localhost:${port}`);
    });
});

链接到文章的文件

import React, { Fragment } from 'react';
import Link from 'next/link';

export default (props) => {

  return (
    <Fragment>
      <Link href={`/blog/${dynamicPostSlug}`}>
        <a>
          Go to article
        </a>
      </Link>
    </Fragment>
  );
};

帖子所在的文件

import React, { Component, Fragment } from 'react';
import { withRouter } from 'next/router';
import 'isomorphic-unfetch';

class post extends Component {

  static async getInitialProps({ req }) {
    try {
      const res = await fetch(`http://localhost/api/posts/${req.params.postslug}`, {
        method: 'GET', // *GET, POST, PUT, DELETE, etc.
        mode: 'cors', // no-cors, cors, *same-origin
      });
      const json = await res.json();
      return { data: json.data };
    } catch (err) {
      console.log('err');
    }
  }

  render() {
    const { data } = this.props;
    return (
      <Fragment>
        <PostContentComesHere data={data}/>
      </Fragment>
    );
  }
}
export default withRouter(post);

I have already checked the next.js docs and it has this implementation which uses the node http module.我通过复制文档示例中的一些部分在 express 上实现了此代码。但是，当我使用 .

转到文章页面时，它似乎仍然会导致页面重新加载

Answer 1

替换

<Link 
 href={`/blog/${dynamicPostSlug}`}>

与

<Link 
 href={`/blog/post?postslug=${dynamicPostSlug}`} 
 as={`/blog/${dynamicPostSlug}`}>

getInitialProps 应该从参数而不是 req 中获取查询。

static async getInitialProps({ query }) {
    try {
      const res = await fetch(`http://localhost/api/posts/${query.postslug}`, {
        method: 'GET', // *GET, POST, PUT, DELETE, etc.
        mode: 'cors', // no-cors, cors, *same-origin
      });
      const json = await res.json();
      return { data: json.data };
    } catch (err) {
      console.log('err');
    }
  }