Vue pinia模块化全局注册详解

import { createPinia } from "pinia";
...
const pinia = createPinia()
app.use(pinia);

// 使用options API模式定义,vue2的组件模型形式类似
// import useDemoStore  from "./modules/addNumber";
// export interface PiniaStore {
//     useDemoStore:ReturnType<typeof useDemoStore>
// }
// const piniaStore: PiniaStore = {} as PiniaStore;
// /**
//  * 注册app状态库
//  */
// export const registerStore = () => {
//     piniaStore.useDemoStore = useDemoStore()
// };
// export default piniaStore;
// 使用setup模式定义
import { useDemoStore } from "./modules/addNumber";
// import textContentStore from "./modules/textContent";  //单一个方法
import { textContentStore, usefruitStore } from "./modules/textContent"; //多个不同需缓存的方法
export interface PiniaStore {
  useDemoStore: ReturnType<typeof useDemoStore>;
  textContentStore: ReturnType<typeof textContentStore>;
  usefruitStore: ReturnType<typeof usefruitStore>;
}
const piniaStore: PiniaStore = {} as PiniaStore;
/**
 * 注册app状态库
 */
export const registerStore = () => {
  piniaStore.useDemoStore = useDemoStore();
  piniaStore.textContentStore = textContentStore();
  piniaStore.usefruitStore = usefruitStore();
};
export default piniaStore;

import { defineStore } from "pinia";
import { ref } from "vue";
//  pinia-plugin-persist 插件的数据持久化使用
export const textContentStore = defineStore({
  id: "goods",
  state: () => {
    return {
      fruit: "苹果",
      price: 15,
    };
  },
  actions: {
    changeName() {
      this.fruit = "雪梨";
    },
    changePrice(val: number) {
      this.price = val;
    },
  },
  // 开启数据缓存
  persist: {
    enabled: true,
    key: "goods",
    //   strategies: [
    //     {
    //       storage: localStorage,
    //       paths: ['accessToken']
    //     },
    strategies: [
      //   自定义存储到 sessionStorage 和 localStorage
      { key: "fruit", storage: sessionStorage, paths: ["fruit"] },
      { key: "price", storage: localStorage, paths: ["price"] },
    ],
  },
});
export const usefruitStore = defineStore(
  "goods1",
  () => {
    const fruit1 = ref<string>("香蕉");
    const price1 = ref<number>(10);
    function changeName1() {
      fruit1.value = "雪梨";
    }
    function changePrice1(val: number) {
      price1.value = val;
    }
    return { fruit1, price1, changeName1, changePrice1 };
  },
  {
    //持久化存储配置 ，必须同步详情可看官方说明文档
    persist: {
      key: "_pinia_price1",
      storage: sessionStorage,
      paths: ["fruit1"],
    },
  }
);
// export const textContentStore = defineStore(
//   "counter",
//   () => {
//     const fruit = ref<string>("苹果");
//     const price = ref<number>(100);
//     function changeName() {
//       fruit.value = "雪梨";
//     }
//     function changePrice(val:number) {
//         price.value = val
//     }
//     return { fruit, price, changeName, changePrice, };
//   },
// //   {
// //     //持久化存储配置 ，必须同步详情可看官方说明文档
// //     persist: {
// //       key: "_pinia_fruit",
// //       storage: sessionStorage,
// //       paths: ["fruit"],
// //     },
// //   }
// );

<h2>水果</h2>
    <h3>名称1：{{ fruit }}---价格：{{ price }}</h3>
    <button @click="changeName">修改名称</button>
    <button @click="ChangePrice">修改价格</button>
    --------------------------------------------
    <h3>名称2：{{ fruit1 }}---价格：{{ price1 }}</h3>
    <button @click="changeName1">修改名称1</button>
    <button @click="changePrice1(120)">修改价格1</button>
import PiniaStore from "../stores";
import { storeToRefs } from "pinia";
// setup composition API模式
const { fruit, price } = storeToRefs(PiniaStore.textContentStore);
const { changeName, changePrice } = PiniaStore.textContentStore;
const { fruit1, price1 } = storeToRefs(PiniaStore.usefruitStore);