@10yun/cv-js-utils/plugins/storageLocal.js

常用 js-utils 工具类库

export default {
  localSet(key, value) {
    return this.__operationStorage(key, value);
  },
  localGet(key) {
    return this.__operationStorage(key);
  },
  localGetString(key, def = '') {
    let value = this.__operationStorage(key);
    return typeof value === 'string' || typeof value === 'number' ? value : def;
  },
  localGetInt(key, def = 0) {
    let value = this.__operationStorage(key);
    return typeof value === 'number' ? value : def;
  },
  localGetBoolean(key, def = false) {
    let value = this.__operationStorage(key);
    return typeof value === 'boolean' ? value : def;
  },
  localGetArray(key, def = []) {
    let value = this.__operationStorage(key);
    return this.isArray(value) ? value : def;
  },
  localGetJson(key, def = {}) {
    let value = this.__operationStorage(key);
    return this.isJson(value) ? value : def;
  },
  /**
   * 新增&&获取缓存数据
   * @param key
   * @param value
   * @return {*}
   */
  __operationStorage(key, value) {
    if (!key) {
      return;
    }
    let keyName = '__state__';
    if (key.substring(0, 5) === 'cache') {
      keyName = '__state:' + key + '__';
    }
    if (typeof value === 'undefined') {
      return this.__loadFromlLocal(key, '', keyName);
    } else {
      this.__savaToLocal(key, value, keyName);
    }
  },
  /**
   *  新增&&修改本地缓存
   *  @param {string} id 唯一id
   *  @param {string} key 标示
   *  @param value 新增&修改的值
   *  @param keyName 主键名称
   */
  __savaToLocal(key, value, keyName) {
    try {
      if (typeof keyName === 'undefined') keyName = '__seller__';
      let seller = window.localStorage[keyName];
      if (!seller) {
        seller = {};
      } else {
        seller = JSON.parse(seller);
      }
      seller[key] = value;
      window.localStorage[keyName] = JSON.stringify(seller);
    } catch (e) {}
  },
  /**
   *  查询本地缓存
   *  @param {string} key 标示
   *  @param {mixed} def 如果查询不到显示的值
   *  @param keyName 主键名称
   */
  __loadFromlLocal(key, def, keyName) {
    try {
      if (typeof keyName === 'undefined') keyName = '__seller__';
      let seller = window.localStorage[keyName];
      if (!seller) {
        return def;
      }
      seller = JSON.parse(seller);
      if (!seller || typeof seller[key] === 'undefined') {
        return def;
      }
      return seller[key];
    } catch (e) {
      return def;
    }
  }
};