一般来讲,我们都会采用vue-cli来进行实际的开发,在vue-cli中,开发和调用方式稍微不同。
├── index.html
├── main.js
├── components
└── store
├── index.js # 我们组装模块并导出 store 的地方
├── state.js # 跟级别的 state
├── getters.js # 跟级别的 getter
├── mutation-types.js # 根级别的mutations名称(官方推荐mutions方法名使用大写)
├── mutations.js # 根级别的 mutation
├── actions.js # 根级别的 action
└── modules
├── m1.js # 模块1
└── m2.js # 模块2
state.js示例:
const state = {
name: 'weish',
age: 22
};
export default state;
getters.js示例(我们一般使用getters来获取state的状态,而不是直接使用state):
export const name = (state) => {
return state.name;
}
export const age = (state) => {
return state.age
}
export const other = (state) => {
return `My name is ${state.name}, I am ${state.age}.`;
}
mutation-type.js示例(我们会将所有mutations的函数名放在这个文件里):
export const SET_NAME = 'SET_NAME';
export const SET_AGE = 'SET_AGE';
mutations.js示例:
import * as types from './mutation-type.js';
export default {
[types.SET_NAME](state, name) {
state.name = name;
},
[types.SET_AGE](state, age) {
state.age = age;
}
};
actions.js示例(异步操作、多个commit时):
import * as types from './mutation-type.js';
export default {
nameAsyn({commit}, {age, name}) {
commit(types.SET_NAME, name);
commit(types.SET_AGE, age);
}
};
modules–m1.js示例(如果不是很复杂的应用,一般来讲是不会分模块的):
export default {
state: {},
getters: {},
mutations: {},
actions: {}
};
index.js示例(组装vuex):
import vue from 'vue';
import vuex from 'vuex';
import state from './state.js';
import * as getters from './getters.js';
import mutations from './mutations.js';
import actions from './actions.js';
import m1 from './modules/m1.js';
import m2 from './modules/m2.js';
import createLogger from 'vuex/dist/logger'; // 修改日志
vue.use(vuex);
const debug = process.env.NODE_ENV !== 'production'; // 开发环境中为true,否则为false
export default new vuex.Store({
state,
getters,
mutations,
actions,
modules: {
m1,
m2
},
plugins: debug ? [createLogger()] : [] // 开发环境下显示vuex的状态修改
});
最后将store实例挂载到main.js里面的vue上去就行了
import store from './store/index.js';
new Vue({
el: '#app',
store,
render: h => h(App)
});
在vue组件中使用时,我们通常会使用mapGetters、mapActions、mapMutations,然后就可以按照vue调用methods和computed的方式去调用这些变量或函数,示例如下:
import {mapGetters, mapMutations, mapActions} from 'vuex';
/* 只写组件中的script部分 */
export default {
computed: {
...mapGetters([
name,
age
])
},
methods: {
...mapMutations({
setName: 'SET_NAME',
setAge: 'SET_AGE'
}),
...mapActions([
nameAsyn
])
}
};
转自博客:https://segmentfault.com/a/1190000012015742