0

引入了一个使用vuex流程的组件,提示disatch 调用的方法not found?

文件store.js

/**
 * Vuex
 * http://vuex.vuejs.org/zh-cn/intro.html
 */
import Vue from 'vue';
import Vuex from 'vuex';

Vue.use(Vuex);

const now = new Date();
const store = new Vuex.Store({
    state: {
        // 当前用户
        user: {
            name: 'coffce',
            img: 'dist/images/1.jpg'
        },
        // 会话列表
        sessions: [
            {
                id: 1,
                user: {
                    name: '示例介绍',
                    img: 'dist/images/2.png'
                },
                messages: [
                    {
                        content: 'Hello,这是一个基于Vue + Vuex + Webpack构建的简单chat示例,聊天记录保存在localStorge, 有什么问题可以通过Github Issue问我。',
                        date: now
                    }, {
                        content: '项目地址: https://github.com/coffcer/vue-chat',
                        date: now
                    }
                ]
            },
            {
                id: 2,
                user: {
                    name: 'webpack',
                    img: 'dist/images/3.jpg'
                },
                messages: []
            }
        ],
        // 当前选中的会话
        currentSessionId: 1,
        // 过滤出只包含这个key的会话
        filterKey: ''
    },
    mutations: {
        INIT_DATA (state) {
            let data = localStorage.getItem('vue-chat-session');
            if (data) {
                state.sessions = JSON.parse(data);
            }
        },
        // 发送消息
        SEND_MESSAGE ({ sessions, currentSessionId }, content) {
            let session = sessions.find(item => item.id === currentSessionId);
            session.messages.push({
                content: content,
                date: new Date(),
                self: true
            });
        },
        // 选择会话
        SELECT_SESSION (state, id) {
            state.currentSessionId = id;
        } ,
        // 搜索
        SET_FILTER_KEY (state, value) {
            state.filterKey = value;
        }
    }
});

store.watch(
    (state) => state.sessions,
    (val) => {
        console.log('CHANGE: ', val);
        localStorage.setItem('vue-chat-session', JSON.stringify(val));
    },
    {
        deep: true
    }
);

export default store;
export const actions = {
    initData: ({ dispatch }) => dispatch('INIT_DATA'),
    sendMessage: ({ dispatch }, content) => dispatch('SEND_MESSAGE', content),
    selectSession: ({ dispatch }, id) => dispatch('SELECT_SESSION', id),
    search: ({ dispatch }, value) => dispatch('SET_FILTER_KEY', value)
};

文件 chat.js

<script>
import { actions } from '../../vuex/store';

import Card from '../../components/card';
import List from '../../components/list';
import Text from '../../components/text';
import Message from '../../components/message';

export default {
    components: { Card, List, Text, Message },
    vuex: {
        actions: actions
    },
    created () {
        this.initData();
    }
}
</script>

<template>
<div id="app">
    <div class="sidebar">
        <card></card>
        <list></list>
    </div>
    <div class="main">
        <message></message>
        <text></text>
    </div>
</div>
</template>

<style lang="less" scoped>
#app {
    margin: 20px auto;
    width: 800px;
    height: 600px;

    overflow: hidden;
    border-radius: 3px;

    .sidebar, .main {
        height: 100%;
    }
    .sidebar {
        float: left;
        width: 200px;
        color: #f4f4f4;
        background-color: #2e3238;
    }
    .main {
        position: relative;
        overflow: hidden;
        background-color: #eee;
    }
    .text {
        position: absolute;
        width: 100%;
        bottom: 0;
        left: 0;
    }
    .message {
        height: ~'calc(100% - 160px)';
    }
}
</style>

文件引入的问题是对的, 为什么会提示

[Vue warn]: Do not use built-in or reserved HTML elements as component id: Text
warn
(unknown) [Vue warn]: Error in created hook: "TypeError: this.initData is not a function"

found in

---> <Chat> at /banli/webchat/resources/vue-admin/src/views/webchat/chat.vue
       <ElCol>... (1 recursive calls)
         <ElRow>
           <Home> at /banli/webchat/resources/vue-admin/src/views/Home.vue
             <App> at /banli/webchat/resources/vue-admin/src/App.vue
               <Root>
warn
(unknown) TypeError: this.initData is not a function
    at VueComponent.created (eval at <anonymous> (app.js:6791), <anonymous>:33:14)
    at callHook (eval at <anonymous> (app.js:772), <anonymous>:2557:21)
    at VueComponent.Vue._init (eval at <anonymous> (app.js:772), <anonymous>:4001:5)
    at new VueComponent (eval at <anonymous> (app.js:772), <anonymous>:4170:12)
    at createComponentInstanceForVnode (eval at <anonymous> (app.js:772), <anonymous>:3519:10)
    at init (eval at <anonymous> (app.js:772), <anonymous>:3353:45)
    at createComponent (eval at <anonymous> (app.js:772), <anonymous>:4902:9)
    at createElm (eval at <anonymous> (app.js:772), <anonymous>:4845:9)
    at VueComponent.patch [as __patch__] (eval at <anonymous> (app.js:772), <anonymous>:5343:9)
    at VueComponent.Vue._update (eval at <anonymous> (app.js:772), <anonymous>:2324:19)
handleError
(unknown) [Vue warn]: Property or method "user" is not defined on the instance but referenced during render. Make sure to declare reactive data properties in the data option.

found in
·····

实在是不懂?vuex刚入门求教?

查看全部 2 个回答

0

chat.js 中,我好像没见过这个用法:

vuex: {
    actions: actions
}

改成下面这种方式应该就可以了

methods: {
    ...actions
}

顺便贴个 vuex 官方关于组件中分发 action 的文档 https://vuex.vuejs.org/zh-cn/...,感觉楼主用的姿势不对