如何在我的路由中定义路由。jsx文件捕获__firebase_request_key参数值从一个URL生成的Twitter的单点登录过程后，从他们的服务器重定向?
http://localhost:8000/#/signin?_k=v9ifuf&__firebase_request_key=blablabla
我尝试了以下路由配置，但:redirectParam没有捕获提到的参数:
<Router>
<Route path="/" component={Main}>
<Route path="signin" component={SignIn}>
<Route path=":redirectParam" component={TwitterSsoButton} />
</Route>
</Route>
</Router>
当前回答
在React-Router-Dom V5中
function useQeury() {
const [query, setQeury] = useState({});
const search = useLocation().search.slice(1);
useEffect(() => {
setQeury(() => {
const query = new URLSearchParams(search);
const result = {};
for (let [key, value] of query.entries()) {
result[key] = value;
}
setQeury(result);
}, [search]);
}, [search, setQeury]);
return { ...query };
}
// you can destruct query search like:
const {page , search} = useQuery()
// result
// {page : 1 , Search: "ABC"}
其他回答
也许有点晚了，但是这个react钩子可以帮助你在URL查询中获取/设置值:https://github.com/rudyhuynh/use-url-search-params(由我编写)。
不管有没有反应路由器，它都可以工作。 下面是您案例中的代码示例:
import React from "react";
import { useUrlSearchParams } from "use-url-search-params";
const MyComponent = () => {
const [params, setParams] = useUrlSearchParams()
return (
<div>
__firebase_request_key: {params.__firebase_request_key}
</div>
)
}
不是反应的方式，但我相信这个单行函数可以帮助你:)
const getQueryParams = (query = null) => [...(new URLSearchParams(query||window.location.search||"")).entries()].reduce((a,[k,v])=>(a[k]=v,a),{});
或:
const getQueryParams = (query = null) => (query||window.location.search.replace('?','')).split('&').map(e=>e.split('=').map(decodeURIComponent)).reduce((r,[k,v])=>(r[k]=v,r),{});
或完整版:
const getQueryParams = (query = null) => {
return (
(query || window.location.search.replace("?", ""))
// get array of KeyValue pairs
.split("&")
// Decode values
.map((pair) => {
let [key, val] = pair.split("=");
return [key, decodeURIComponent(val || "")];
})
// array to object
.reduce((result, [key, val]) => {
result[key] = val;
return result;
}, {})
);
};
例子: URL:…?= = 1 b =建发集团有限公司的测试 代码:
getQueryParams()
//=> {a: "1", b: "c", d: "test"}
getQueryParams('type=user&name=Jack&age=22')
//=> {type: "user", name: "Jack", age: "22" }
React路由器5.1+
5.1引入了各种钩子，如useLocation和useParams，可以在这里使用。
例子:
<Route path="/test/:slug" component={Dashboard} />
如果我们去参观
http://localhost:3000/test/signin?_k=v9ifuf&__firebase_request_key=blablabla
你可以把它找回来
import { useLocation } from 'react-router';
import queryString from 'query-string';
const Dashboard: React.FC = React.memo((props) => {
const location = useLocation();
console.log(queryString.parse(location.search));
// {__firebase_request_key: "blablabla", _k: "v9ifuf"}
...
return <p>Example</p>;
}
你可以创建一个简单的钩子来从当前位置提取搜索参数:
import React from 'react';
import { useLocation } from 'react-router-dom';
export function useSearchParams<ParamNames extends string[]>(...parameterNames: ParamNames): Record<ParamNames[number], string | null> {
const { search } = useLocation();
return React.useMemo(() => { // recalculate only when 'search' or arguments changed
const searchParams = new URLSearchParams(search);
return parameterNames.reduce((accumulator, parameterName: ParamNames[number]) => {
accumulator[ parameterName ] = searchParams.get(parameterName);
return accumulator;
}, {} as Record<ParamNames[number], string | null>);
}, [ search, parameterNames.join(',') ]); // join for sake of reducing array of strings to simple, comparable string
}
然后你可以像这样在你的功能组件中使用它:
// current url: http://localhost:8000/#/signin?_k=v9ifuf&__firebase_request_key=blablabla
const { __firebase_request_key } = useSearchParams('__firebase_request_key');
// current url: http://localhost:3000/home?b=value
const searchParams = useSearchParameters('a', 'b'); // {a: null, b: 'value'}
或者像这样?
Let win = { “位置”:{ “路径”:“http://localhost: 8000 / # / signin吗?_k = v9ifuf&__firebase_request_key =之类的 ｝ ｝ If (win.location.path.match('__firebase_request_key').length) { 让key= win.location.path.split('__firebase_request_key=')[1] console.log(关键) ｝
