{"id":7869,"date":"2023-11-28T20:03:27","date_gmt":"2023-11-28T12:03:27","guid":{"rendered":"https:\/\/wx.kaifamiao.info\/?p=7869"},"modified":"2023-12-01T23:27:38","modified_gmt":"2023-12-01T15:27:38","slug":"vue-zhongvuex-de-shi-yong","status":"publish","type":"post","link":"http:\/\/wx.kaifamiao.info\/index.php\/2023\/11\/28\/vue-zhongvuex-de-shi-yong\/","title":{"rendered":"Vue \u4e2d vuex \u7684\u4f7f\u7528\uff1f"},"content":{"rendered":"

VueX \u662f Vue.js \u7684\u72b6\u6001\u7ba1\u7406\u5e93\uff0c\u7528\u4e8e\u7ba1\u7406\u5e94\u7528\u7a0b\u5e8f\u4e2d\u7684\u5171\u4eab\u72b6\u6001\u3002\u5b83\u63d0\u4f9b\u4e86\u4e00\u4e2a\u96c6\u4e2d\u7684\u5b58\u50a8\uff0c\u8ba9\u7ec4\u4ef6\u4e4b\u95f4\u53ef\u4ee5\u66f4\u5bb9\u6613\u5730\u5171\u4eab\u548c\u7ba1\u7406\u72b6\u6001\uff0c\u7279\u522b\u9002\u7528\u4e8e\u5927\u578b\u3001\u590d\u6742\u7684\u5355\u9875\u9762\u5e94\u7528\uff08SPA\uff09\u3002<\/p>\n

\u4ee5\u4e0b\u662f VueX \u7684\u57fa\u672c\u4f7f\u7528\u6b65\u9aa4\uff1a<\/p>\n

    \n
  1. \n

    \u5b89\u88c5 VueX\uff1a<\/strong><\/p>\n

    npm install vuex\n<\/code><\/pre>\n<\/li>\n
  2. \n
    \u521b\u5efa Store\uff1a<\/strong> \u5728\u9879\u76ee\u4e2d\u521b\u5efa\u4e00\u4e2a Vuex \u7684 store \u6587\u4ef6\uff0c\u901a\u5e38\u662f\u4e00\u4e2a store.js<\/code> \u6587\u4ef6\u3002<\/p>\n
    \/\/ store.js\nimport Vue from 'vue';\nimport Vuex from 'vuex';\n\nVue.use(Vuex);\n\nexport default new Vuex.Store({\n  state: {\n    \/\/ \u72b6\u6001\uff08\u6570\u636e\uff09\u5b58\u653e\u7684\u5730\u65b9\n    count: 0\n  },\n  mutations: {\n    \/\/ \u6539\u53d8\u72b6\u6001\u7684\u65b9\u6cd5\n    increment(state) {\n      state.count++;\n    },\n    decrement(state) {\n      state.count--;\n    }\n  },\n  actions: {\n    \/\/ \u5f02\u6b65\u64cd\u4f5c\u6216\u590d\u6742\u64cd\u4f5c\u7684\u5c01\u88c5\n    incrementAsync({ commit }) {\n      setTimeout(() => {\n        commit('increment');\n      }, 1000);\n    }\n  },\n  getters: {\n    \/\/ \u8ba1\u7b97\u5c5e\u6027\uff0c\u5bf9 state \u4e2d\u7684\u6570\u636e\u8fdb\u884c\u5904\u7406\u5e76\u8fd4\u56de\n    doubleCount(state) {\n      return state.count * 2;\n    }\n  }\n});\n<\/code><\/pre>\n<\/li>\n
  3. \n
    \u5728 main.js \u4e2d\u5f15\u5165\u5e76\u6302\u8f7d Vuex\uff1a<\/strong><\/p>\n
    \/\/ main.js\nimport Vue from 'vue';\nimport App from '.\/App.vue';\nimport store from '.\/store';\n\nnew Vue({\n  render: h => h(App),\n  store  \/\/ \u5c06 store \u6302\u8f7d\u5230\u6839\u5b9e\u4f8b\u4e2d\n}).$mount('#app');\n<\/code><\/pre>\n<\/li>\n
  4. \n
    \u5728\u7ec4\u4ef6\u4e2d\u4f7f\u7528 State\uff1a<\/strong> \u901a\u8fc7 mapState<\/code> \u8f85\u52a9\u51fd\u6570\u6216\u76f4\u63a5\u5728\u7ec4\u4ef6\u4e2d\u8bbf\u95ee this.$store.state<\/code> \u6765\u83b7\u53d6\u548c\u4f7f\u7528 state \u4e2d\u7684\u6570\u636e\u3002<\/p>\n
    <!-- MyComponent.vue -->\n<template>\n  <div>\n    <p>Count: {{ count }}<\/p>\n    <p>Double Count: {{ doubleCount }}<\/p>\n  <\/div>\n<\/template>\n\n<script>\nimport { mapState } from 'vuex';\n\nexport default {\n  computed: {\n    \/\/ \u4f7f\u7528 mapState \u8f85\u52a9\u51fd\u6570\n    ...mapState(['count', 'doubleCount'])\n  }\n};\n<\/script>\n<\/code><\/pre>\n<\/li>\n
  5. \n
    \u5728\u7ec4\u4ef6\u4e2d\u4f7f\u7528 Mutations\uff1a<\/strong> \u901a\u8fc7 mapMutations<\/code> \u8f85\u52a9\u51fd\u6570\u6216\u76f4\u63a5\u5728\u7ec4\u4ef6\u4e2d\u4f7f\u7528 this.$store.commit<\/code> \u6765\u8c03\u7528 mutations \u4e2d\u7684\u65b9\u6cd5\u3002<\/p>\n
    <!-- MyComponent.vue -->\n<template>\n  <div>\n    <button @click="increment">Increment<\/button>\n    <button @click="decrement">Decrement<\/button>\n  <\/div>\n<\/template>\n\n<script>\nimport { mapMutations } from 'vuex';\n\nexport default {\n  methods: {\n    \/\/ \u4f7f\u7528 mapMutations \u8f85\u52a9\u51fd\u6570\n    ...mapMutations(['increment', 'decrement'])\n  }\n};\n<\/script>\n<\/code><\/pre>\n<\/li>\n
  6. \n
    \u5728\u7ec4\u4ef6\u4e2d\u4f7f\u7528 Actions\uff1a<\/strong> \u901a\u8fc7 mapActions<\/code> \u8f85\u52a9\u51fd\u6570\u6216\u76f4\u63a5\u5728\u7ec4\u4ef6\u4e2d\u4f7f\u7528 this.$store.dispatch<\/code> \u6765\u8c03\u7528 actions \u4e2d\u7684\u65b9\u6cd5\u3002<\/p>\n
    <!-- MyComponent.vue -->\n<template>\n  <div>\n    <button @click="incrementAsync">Increment Async<\/button>\n  <\/div>\n<\/template>\n\n<script>\nimport { mapActions } from 'vuex';\n\nexport default {\n  methods: {\n    \/\/ \u4f7f\u7528 mapActions \u8f85\u52a9\u51fd\u6570\n    ...mapActions(['incrementAsync'])\n  }\n};\n<\/script>\n<\/code><\/pre>\n<\/li>\n<\/ol>\n
    \u8fd9\u662f\u4e00\u4e2a\u7b80\u5355\u7684 VueX \u7684\u4f7f\u7528\u793a\u4f8b\u3002VueX \u8fd8\u652f\u6301\u6a21\u5757\u5316\u3001\u63d2\u4ef6\u7b49\u66f4\u9ad8\u7ea7\u7684\u7528\u6cd5\uff0c\u6839\u636e\u9879\u76ee\u7684\u9700\u8981\uff0c\u53ef\u4ee5\u9010\u6b65\u6df1\u5165\u4e86\u89e3 VueX \u7684\u66f4\u591a\u529f\u80fd\u548c\u7528\u6cd5\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
    VueX \u662f Vue.js \u7684\u72b6\u6001\u7ba1\u7406\u5e93\uff0c\u7528\u4e8e\u7ba1\u7406\u5e94\u7528\u7a0b\u5e8f\u4e2d\u7684\u5171\u4eab\u72b6\u6001\u3002\u5b83\u63d0\u4f9b\u4e86\u4e00\u4e2a\u96c6\u4e2d\u7684\u5b58\u50a8\uff0c\u8ba9\u7ec4\u4ef6\u4e4b\u95f4\u53ef\u4ee5 […]<\/p>\n","protected":false},"author":11,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[114],"tags":[],"class_list":["post-7869","post","type-post","status-publish","format-standard","hentry","category-vue"],"_links":{"self":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/7869","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/users\/11"}],"replies":[{"embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/comments?post=7869"}],"version-history":[{"count":2,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/7869\/revisions"}],"predecessor-version":[{"id":13973,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/7869\/revisions\/13973"}],"wp:attachment":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/media?parent=7869"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/categories?post=7869"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/tags?post=7869"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}