vue3.2/Vite/Ts19: 处理登录模块业务

pnpm i pinia

|-- src
     |-- store
           |-- index.ts
           |-- modules # 具体小仓库文件夹
                 |-- user.ts # 用户相关小仓库

// 创建大仓库
// src / store / index.ts
import { createPinia } from "pinia";
let pinia = createPinia();
export default pinia;

// src / store / modules / user.ts
import { defineStore } from "pinia";
// 引入登录接口的封装
import { reqLogin } from "@/api/user";
// 引入登录参数的 ts 类型规范
import type { loginForm } from "@/api/user/type";
// 创建用户小仓库
let useUserStore = defineStore("User", {
  state: () => {
    return {
      // 定义全局数据 token
      token: localStorage.getItem("TOKEN") || "",
    };
  },
  // 异步逻辑处理
  actions: {
    // 用户登录方法
    async userLogin(data: loginForm) {
      let result: any = await reqLogin(data);
      if (result.code === 200) {
        // 存储新的 token
        this.token = result.data.token;
        // 持久化 token
        localStorage.setItem("Token", this.token);
        return "ok";
      } else {
        return Promise.reject(new Error(result.data.message));
      }
    },
  },
  getters: {},
});

export default useUserStore;

// main.ts
//...
import pinia from "./store";
//...
app.use(pinia);

<!-- src / views / login / index.vue -->
<template>
  <div class="login_container">
    <el-row>
      <!-- 当页面宽度小于 768，此处会消失 -->
      <el-col :span="12" :xs="0"></el-col>
      <el-col :span="12" :xs="24">
        <el-form class="login_form">
          <h1>hello, welcome!!</h1>
          <el-form-item>
            <el-input
              :prefix-icon="User"
              v-model="loginForm.username"
            ></el-input>
          </el-form-item>
          <el-form-item>
            <el-input
              type="password"
              :prefix-icon="Lock"
              v-model="loginForm.password"
              show-password
            ></el-input>
          </el-form-item>
          <el-form-item>
            <el-button
              class="login_btn"
              type="primary"
              size="default"
              @click="login"
              :loading="loading"
              >登录</el-button
            >
          </el-form-item>
        </el-form>
      </el-col>
    </el-row>
  </div>
</template>

<script setup lang="ts">
  import { User, Lock } from "@element-plus/icons-vue";
  import { reactive } from "vue";

  // 路由方法引入
  import { useRouter } from "vue-router";
  let $router = useRouter();

  // 引入消息提示组件
  import { ElNotification } from "element-plus";

  // 引入 user 小仓库
  import { useUserStore } from "@/store/modules/user";
  let userStore = useUserStore();

  // 登录按钮 loading 效果
  let loading = ref(false);

  // 收集表单填写的数据
  let loginForm = reactive({
    username: "",
    password: "",
  });

  // 处理点击 button 登录逻辑
  const login = async () => {
    // loading 加载效果添加
    loading.value = true;
    try {
      await userStore.userLogin(loginForm);
      // 登录成功就跳转首页
      $router.push("/");
      // 成功提示信息
      ElNotification({
        type: "success",
        message: "登录成功",
      });
      loading.value = false;
    } catch (error) {
      loading.value = false;
      ElNotification({
        type: "error",
        message: (error as Error).message, // 断言错误类型
      });
    }
  };
</script>