NextJS useRouter 在函数体内使用时出错

NextJS useRouter error when used inside function body

我希望这是一个简单的问题。我不明白 为什么 它会这样做。无论如何,使用 NextJS 我正在尝试使用 useRouter 挂钩访问路由器中的参数并将其与查询字符串插件组合以拆分 asPath,因为如果使用无状态,NextJS 不允许您访问路由器的查询部分。这是我的代码:

import { useRouter } from 'next/router';
import queryString from "query-string";

const withPageRouter = (router) => {
    router.query = { ...queryString.parse(router.asPath.split(/\?/)[1]) };
    return router;
  };

function getRouterParams(){
  const router = useRouter();
  router = withPageRouter(router);
  return router;
}

export async function getTown() {
const town = await getRouterParams();
return town;
}

现在,当我尝试 运行 它时,我收到此错误:

Server Error

Error: Invalid hook call. Hooks can only be called inside of the body of a function component. This could happen for one of the following reasons:
1. You might have mismatching versions of React and the renderer (such as React DOM)
2. You might be breaking the Rules of Hooks
3. You might have more than one copy of React in the same app
See https://reactjs.org/link/invalid-hook-call for tips about how to debug and fix this problem.
This error happened while generating the page. Any console logs will be displayed in the terminal window.
Source

lib/api.js (34:26) @ getRouterParams

  32 | 
  33 | function getRouterParams(){
> 34 |   const router = useRouter();
     |                          ^
  35 |   router = withPageRouter(router);
  36 |   return router;
  37 | }

但对我来说应该没问题;它在函数体内?我觉得我错过了一些明显的东西。感谢您的帮助。

您不能在正常功能中调用 useRouter()。

只能在 React 函数组件或自定义 hooks 的 Top 内部调用 useRouter()

在此处了解有关 Hook 规则的更多信息:https://reactjs.org/docs/hooks-rules.html

作为 useRouter 的替代方法,您可能想使用 withRouter(可用于 class 组件)。另请参阅以下相关的 SO 问题:

import { withRouter } from 'next/router'
import React from "react";

export default withRouter(class extends React.Component {
  render() {
    return (
      <div>{ this.props.router.query.id }</div>
    )
  }
})