vuex组件管理方式

1.使用同一数据源(store)的组件放在一个目录中

2.根组件(index.vue)中引用store，子组件不引用

export default {
  name:'Counter1',
  methods:{
    localMethod() { },
    //updateCount(value) { this.$store.commit('UPDATE_COUNT', value) },
    ...mapActions({increment:'incrementCounter',
                   decrement:'decrementCounter'}),
    ...mapActions(['GetRsakey'])
  },
  computed:{
    s:{get() {return this.$store.state}}, //简化
    //扩展运算符（ spread ）是三个点（...）。它好比rest参数的逆运算，将一个数组转为用逗号分隔的参数序列。
    ...mapGetters({
      counterValue: 'getCount',ccc:'getCount2'
    }),
    count:{
        get() {return this.$store.state.count},
        set(val) {this.$store.commit('UPDATE_COUNT', val)}
    }
  }
  ,store
}

3.store写法

import Vue from 'vue'
import Vuex from 'vuex'
import * as actions from './actions'
import * as getters from './getters'

// 告诉 vue “使用” vuex
Vue.use(Vuex)

const state = {
  count: 100,
  key:'',
  uid:'test',
  pwd:'1'
}

const mutations = {
  INCREMENT (state,n) {
    state.count+=n
  },
  DECREMENT (state,n) {
    state.count-=n
  },
  UPDATE_COUNT(state,n){ state.count=parseInt(n) },
  setKey:(state,k)=>state.key=k
}

export default new Vuex.Store({
  state,    //数据
  getters,  //读取时进行转换(compute),不转换的数据可以在vue中直接用{{this.$store.state.xxx}}读取
  actions,  //设置时提交改变(commit)
  mutations //操作
})

4.action写法

import {Ajax} from './api/Ajax'
import {RSAKeyPair,encryptedString} from './api/RSA'
import {setMaxDigits} from './api/RSA/BigInt'

//新版用commit(vuex会把commit和state传进来)
export const incrementCounter = ({ commit,state }) => {
    commit('INCREMENT', 10);  //调用INCREMENT方法，后面跟参数
}

export const decrementCounter = ({ commit,state }) => {
    commit('DECREMENT', 10);  //调用DECREMENT方法，后面跟参数
}

export const GetRsakey=({ commit,state })=>
{
    Ajax.post("GetRsakey",{ver:'json'}).then((r)=>
    {
        //console.log(r.data.RsaXMLPublicKey);
        commit('setKey', r.data.RsaXMLPublicKey);
        setMaxDigits(131);
        let pair = r.data.RsaXMLPublicKey.split(",");
        let key = new RSAKeyPair(pair[0], "", pair[1]);
        let data = {};
        data.UserName = encryptedString(key, state.uid);
        data.UserPWD = encryptedString(key, state.pwd);
        data.OEAP = false;
        Ajax.post("Login",data).then((r)=>
        {
          console.log(r.data);
        });
    });
}

/*参考
export const addToCart = ({ commit }, product) => {
  if (product.inventory > 0) {
    commit(types.ADD_TO_CART, {
      id: product.id
    })
  }
}
*/

5.getter写法

// 这个 getter 函数会返回 count 的值
// 在 ES6 里你可以写成：
// export const getCount = state => state.count

export function getCount (state) {
  return state.count+"次";
}

export function getCount2 (state) {
  return state.count;
}