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本帖最后由 周大胖子 于 2022-7-1 10:03 编辑
第一种传参模式 基础 URL key value 传参:
<Link className="nav" to={`/b/child2?age=20&name=zhangsan`}>Child2</Link>
//注册路由(无需声明,正常注册即可):
<Route path="/b/child2" component={Test}/>
//接收参数方法1:
import { useLocation } from "react-router-dom";
import qs from "query-string";
const { search } = useLocation();
//search参数 => {age: "20", name: "zhangsan"}
//接收参数方法2:
import { useSearchParams } from "react-router-dom";
const [searchParams, setSearchParams] = useSearchParams();
// console.log( searchParams.get("id")); // 12
第二种传参模式: 占位符传参。类似于PHP等后端的 路由参数传递方式
//路由链接(携带参数):
<Link to={{ pathname:`/b/child1/${id}/${title}` }}>Child1</Link>
//或 <Link to={`/b/child1/${id}/${title}`}>Child1</Link>
//注册路由(声明接收):
<Route path="/b/child1/:id/:title" component={Test}/>
//接收参数:
import { useParams } from "react-router-dom";
const params = useParams();
//params参数 => {id: "01", title: "消息1"}
第三种 state参数传参:
3.1 function 传参 模式
//通过Link的state属性传递参数
<Link
className="nav"
to={`/b/child2`}
state={{ id: 999, name: "i love merlin" }}
>
Child2
</Link>
//注册路由(无需声明,正常注册即可):
<Route path="/b/child2" component={Test}/>
//接收参数:
import { useLocation } from "react-router-dom";
const { state } = useLocation();
//state参数 => {id: 999, name: "我是梅琳"}
//备注:刷新也可以保留住参数
3.2 如何在class 的函数类中使用 useLocation
export const withNavigation = (PureComponent) => {
return (props) => <PureComponent {...props} navigate={useNavigate() } lstate={useLocation()}/>;
};
class CssModelTest extends React.PureComponent{
constructor(props) {
super(props);
this.state = {
}
console.log(this.props.lstate)
}
render(){
return(
<>
</>
)
}
gowhere(){
this.props.navigate('/login/new');
}
}
export default withNavigation(CssModelTest);
部分参考链接:https://blog.csdn.net/qq_42753705/article/details/121998895
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