Ade*_*iya 1 history push reactjs react-router
我正在创建一个包含一些预定义值的表单,并且我想在提交表单后路由到仪表板页面。我在表单的onsubmit 上使用handleLoginSubmit 函数。为此,我有以下代码:
handleLoginSubmit = (e) => {
e.preventDefault();
let hardcodedCred = {
email: "email@email.com",
password: "password123",
};
if (
this.state.email == hardcodedCred.email &&
this.state.password == hardcodedCred.password
) {
//combination is good. Log them in.
//this token can be anything. You can use random.org to generate a random string;
// const token = "123456abcdef";
// sessionStorage.setItem("auth-token", token);
//go to www.website.com/todo
// history.push("/dashboard");
this.props.history.push("/dashboard");
// console.log(this.state.route);
console.log(this.context);
console.log("logged in");
// <Link to={location} />;
} else {
//bad combination
alert("wrong email or password combination");
}
};
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但是,我收到错误消息说历史未定义。请在这里帮助我
需要使用router导出组件才能访问历史记录
import { withRouter } from 'react-router-dom';
export default withRouter(ComponentName)
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如果您的组件与 链接Route,那么您可以直接访问它this.props,但如果它的子组件或某个组件的子组件,那么您无法访问它this.props。
所以有多种方法可以解决它
Route<Component history={this.props.history} />
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withRouterHOC,绑定Route组件中的所有 propsimport { withRouter } from 'react-router-dom';
export default withRouter(Component)
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useHistory钩子并将其保存到常量(功能组件)import { useHistory } from 'react-router-dom';
const history = useHistory();
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