优雅实现字典状态管理:基于 Vue3 + Pinia
摘要:一份优雅的 Vue3 + Pinia 字典状态管理实践,解决数据复用、类型提示与性能缓存的终极方案,让你的项目从此告别散落各处的字典逻辑。话不多说,上代码。
1. Pinia Store 实现
import { defineStore } from 'pinia';
export const useDictStore = defineStore('dict', {
state: () => ({
dict: [],
}),
actions: {
getDict(key) {
try {
const item = this.dict.find(item => item.key === key);
return item ? item.value : null;
} catch (e) {
console.error('获取字典失败:', e);
return null;
}
},
setDict(key, value) {
if (!key || typeof key !== 'string') return;
const index = this.dict.findIndex(item => item.key === key);
if (index !== -1) {
this.dict[index].value = value;
} else {
this.dict.push({ key, value });
}
},
removeDict(key) {
try {
const index = this.dict.findIndex(item => item.key === key);
if (index !== -1) {
this.dict.splice(index, 1);
return true;
}
return false;
} catch (e) {
console.error('移除字典失败:', e);
return false;
}
},
clearAll() {
this.dict = [];
}
},
});
2. Hook 封装
import { ref, toRefs } from 'vue'
import { useDictStore } from '@/stores/dict'
import { getHttpDicts } from '/@/api/dict'
export function useDict(...args) {
const res = ref({})
const dictStore = useDictStore()
args.forEach((dictType) => {
res.value[dictType] = []
const dicts = dictStore.getDict(dictType)
if (dicts) {
res.value[dictType] = dicts
} else {
getHttpDicts(dictType).then((resp) => {
const dictData = resp.data.map((p) => ({
label: p.label,
value: p.value,
}))
res.value[dictType] = dictData
dictStore.setDict(dictType, dictData)
}).catch(error => {
console.error(`获取字典${dictType}失败:`, error)
})
}
})
return toRefs(res.value)
}
2. 使用示例
import { useDict } from '@/hooks/useDict';
const { user_status, order_type } = useDict('user_status', 'order_type');