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"}

React路由器v6

来源:在React路由器中获取查询字符串(搜索参数)

使用新的useSearchParams钩子和.get()方法:

const Users = () => {
  const [searchParams] = useSearchParams();
  console.log(searchParams.get('sort')); // 'name'

  return <div>Users</div>;
};

使用这种方法，您可以读取一个或几个参数。

将参数作为一个对象:

如果你需要一次性获得所有的查询字符串参数，那么我们可以像这样使用Object.fromEntries:

const Users = () => {
  const [searchParams] = useSearchParams();
  console.log(Object.fromEntries([...searchParams])); // ▶ { sort: 'name', order: 'asecnding' }
  return <div>Users</div>;
};

阅读更多和现场演示:在React路由器中获取查询字符串(搜索参数)

React路由器v3

使用React Router v3，你可以从this.props.location.search (?qs1=naisarg&qs2=parmar)获取查询字符串。例如，使用let params = queryString.parse(this.props.location.search)，将给出{qs1: 'naisarg'， qs2: 'parmar'}

React路由器v4

在React Router v4中，this.props.location.query不再存在。您需要使用this.props.location.search，并自己或使用现有的包(如query-string)解析查询参数。

例子

下面是一个使用React Router v4和query-string库的最小示例。

import { withRouter } from 'react-router-dom';
import queryString from 'query-string';
    
class ActivateAccount extends Component{
    someFunction(){
        let params = queryString.parse(this.props.location.search)
        ...
    }
    ...
}
export default withRouter(ActivateAccount);

理性的

React Router团队移除query属性的理由是:

There are a number of popular packages that do query string parsing/stringifying slightly differently, and each of these differences might be the "correct" way for some users and "incorrect" for others. If React Router picked the "right" one, it would only be right for some people. Then, it would need to add a way for other users to substitute in their preferred query parsing package. There is no internal use of the search string by React Router that requires it to parse the key-value pairs, so it doesn't have a need to pick which one of these should be "right". [...] The approach being taken for 4.0 is to strip out all the "batteries included" kind of features and get back to just basic routing. If you need query string parsing or async loading or Redux integration or something else very specific, then you can add that in with a library specifically for your use case. Less cruft is packed in that you don't need and you can customize things to your specific preferences and needs.

你可以在GitHub上找到完整的讨论。

使用let {redirectParam} = useParams();如果你用的是功能组件

它是一个类组件

constructor (props) {  
        super(props);
        console.log(props);
        console.log(props.match.params.redirectParam)
}
async componentDidMount(){ 
        console.log(this.props.match.params.redirectParam)
}

你也可以使用react-location-query包，例如:

  const [name, setName] = useLocationField("name", {
    type: "string",
    initial: "Rostyslav"
  });

  return (
    <div className="App">
      <h1>Hello {name}</h1>
      <div>
        <label>Change name: </label>
        <input value={name} onChange={e => setName(e.target.value)} />
      </div>
    </div>
  );

名称-获取价值 setName =设置值

这个包有很多选项，在Github上的文档中阅读更多

this.props.params。Your_param_name将工作。

这是从查询字符串中获取参数的方法。 请执行console.log(this.props);探索所有的可能性。