react_15

敲代码的翠花2023-11-05 11:16

动态菜单

图标要独立安装依赖

npm install @ant-design/icons

图标组件，用来将字符串图标 转换为标签图标

TypeScript 复制代码

import * as icons from "@ant-design/icons";
interface Module {
  [p: string]: any;
}
const all: Module = icons;
export default function Icon({ name }: { name: string }) {
  const Icon = all[name];
  return <Icon></Icon>;
}

登录页面

TypeScript 复制代码

import { Button, Form, Input, message } from "antd";
import RoutesStore from "../store/RoutesStore";
import { LoginReq } from "../model/Student";
import { observer } from "mobx-react-lite";
import { useNavigate } from "react-router-dom";
import { useEffect } from "react";

function A8Login() {
  function onFinish(values: LoginReq) {
    RoutesStore.login(values);
  }
  const nav = useNavigate();
  useEffect(() => {
    if (RoutesStore.state === "success") {
      //登陆成功,跳转到主页
      nav("/");
    } else if (RoutesStore.state === "error") {
      //登录失败
      message.error(RoutesStore.message);
    }
  }, [RoutesStore.state]);
  return (
    <div style={{ paddingTop: 200 }}>
      <Form
        name="basic"
        labelCol={{ span: 8 }}
        wrapperCol={{ span: 8 }}
        onFinish={onFinish}
      >
        <Form.Item
          label="用户名"
          name="username"
          rules={[{ required: true, message: "用户名必须" }]}
        >
          <Input autoComplete="off" />
        </Form.Item>
        <Form.Item
          label="密码"
          name="password"
          rules={[{ required: true, message: "密码必须" }]}
        >
          <Input.Password autoComplete="off" />
        </Form.Item>
        <Form.Item wrapperCol={{ offset: 8, span: 6 }}>
          <Button type="primary" htmlType="submit">
            登录
          </Button>
        </Form.Item>
      </Form>
    </div>
  );
}
export default observer(A8Login);

用 useNavigate() 返回的函数跳转的代码不能包含在函数式组件的主逻辑中，只能放在
- 其它事件处理函数中
- 写在副作用函数 useEffect 之中