ort*_*gon 25 javascript reactjs
export default function App() {
return (
<div className="h-100">
<Routes>
<Link to={
{
pathname: "/posts",
state: {test: 'test'}
}
}>Posts</Link>
<Route path="/" element={<Home/>}/>
<Route path="/login" element={<Login/>}/>
<Route path="/posts" element={<Posts/>}/>
</Routes>
</div>
)
}
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期望传递状态,当使用 useLocation 从另一个页面状态获取状态时,从一个页面到另一个页面的某些数据为 null
import {BrowserRouter as Router} from "react-router-dom";
import App from "./App";
ReactDOM.render(
<React.StrictMode>
<Router>
<App/>
</Router>
</React.StrictMode>
,
document.getElementById('root')
);
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const location=useLocation()
console.log(location);
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Object { pathname: "/posts", search: "", hash: "", state: null, key: "hpuuzep5" }
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{
"name": "chance",
"version": "0.1.0",
"private": true,
"dependencies": {
"@testing-library/jest-dom": "^5.11.9",
"@testing-library/react": "^11.2.5",
"@testing-library/user-event": "^12.6.3",
"axios": "^0.21.1",
"bootstrap": "^5.0.0-beta3",
"history": "^5.0.0",
"ramda": "^0.27.1",
"react": "^17.0.1",
"react-dom": "^17.0.1",
"react-router": "^5.2.0",
"react-router-dom": "^5.2.0",
"react-scripts": "4.0.2",
"styled-components": "^5.2.3",
"web-vitals": "^1.1.0"
},
"scripts": {
"start": "react-scripts start",
"build": "react-scripts build",
"test": "react-scripts test",
"eject": "react-scripts eject"
},
"eslintConfig": {
"extends": [
"react-app",
"react-app/jest"
]
},
"browserslist": {
"production": [
">0.2%",
"not dead",
"not op_mini all"
],
"development": [
"last 1 chrome version",
"last 1 firefox version",
"last 1 safari version"
]
}
}
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我无法从react-router-dom导入交换机,它说交换机没有从react router dom导出,我认为已经正确设置了我的路由,错误在哪里,我无法将状态从一个路由传递到另一个路由
chi*_*rry 43
我能够通过这样做来获得状态:
<Link
to={"/posts"}
state={{test: 'test'}}>
Posts
</Link>
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我打开类型声明,最终意识到状态是一个道具,而不是对象的一部分https://github.com/ReactTraining/react-router/blob/dev/docs/api-reference.md#link
小智 16
我想补充一点,在版本 5 中,您可以通过 props 将状态传递给组件。
现在它只能使用 useLocation 来工作。
的组件<Link />是
<Link to={'/page1'} state={{ state: 'mystate' }} >Page 1</Link>
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您想要获取状态的组件
import { useLocation } from 'react-router-dom';
const { state } = useLocation()
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我找到了这篇文章。 https://ui.dev/react-router-pass-props-to-link/
我花了很多时间解决这个问题,但不知何故我在文档中找不到任何有关此的信息。
希望能帮助那里的人
Djo*_*jov 11
您还可以使用钩子导航到某个路径,useNavigate()如下所示:
const navigate = useNavigate();
navigate('/posts', {state: { test: 'test'}})
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完整的解释在这里记录得很好: https://reactrouter.com/docs/en/v6/upgrading/v5#use-usenavigate-instead-of-usehistory
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