feat: 添加修改行业分类不展示的问题
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@@ -1,12 +1,17 @@
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// src/contexts/IndustryContext.js
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// 行业分类数据全局上下文 - 直接使用静态数据
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// 行业分类数据全局上下文 - 使用API获取 + 缓存机制
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import React, { createContext, useContext } from 'react';
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import React, { createContext, useContext, useState, useEffect, useRef } from 'react';
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import { industryData as staticIndustryData } from '../data/industryData';
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import { industryService } from '../services/industryService';
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import { logger } from '../utils/logger';
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const IndustryContext = createContext();
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// 缓存配置
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const CACHE_KEY = 'industry_classifications_cache';
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const CACHE_DURATION = 24 * 60 * 60 * 1000; // 1天(24小时)
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/**
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* useIndustry Hook
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* 在任何组件中使用行业数据
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@@ -19,28 +24,148 @@ export const useIndustry = () => {
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return context;
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};
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/**
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* 从 localStorage 读取缓存
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*/
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const loadFromCache = () => {
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try {
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const cached = localStorage.getItem(CACHE_KEY);
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if (!cached) return null;
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const { data, timestamp } = JSON.parse(cached);
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const now = Date.now();
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// 检查缓存是否过期(1天)
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if (now - timestamp > CACHE_DURATION) {
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localStorage.removeItem(CACHE_KEY);
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logger.debug('IndustryContext', '缓存已过期,清除缓存');
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return null;
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}
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logger.debug('IndustryContext', '从缓存加载行业数据', {
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count: data?.length || 0,
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age: Math.round((now - timestamp) / 1000 / 60) + ' 分钟前'
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});
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return data;
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} catch (error) {
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logger.error('IndustryContext', 'loadFromCache', error);
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return null;
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}
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};
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/**
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* 保存到 localStorage
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*/
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const saveToCache = (data) => {
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try {
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localStorage.setItem(CACHE_KEY, JSON.stringify({
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data,
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timestamp: Date.now()
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}));
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logger.debug('IndustryContext', '行业数据已缓存', {
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count: data?.length || 0
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});
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} catch (error) {
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logger.error('IndustryContext', 'saveToCache', error);
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}
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};
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/**
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* IndustryProvider 组件
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* 提供全局行业数据管理 - 直接使用静态数据,无需加载
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* 提供全局行业数据管理 - 使用API获取 + 缓存机制
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*/
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export const IndustryProvider = ({ children }) => {
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// 直接使用静态数据,无需状态管理
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const industryData = staticIndustryData;
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const [industryData, setIndustryData] = useState(null);
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const [loading, setLoading] = useState(false);
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const [error, setError] = useState(null);
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const hasLoadedRef = useRef(false);
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const isLoadingRef = useRef(false);
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logger.debug('IndustryContext', '使用静态行业数据', {
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count: industryData?.length || 0
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});
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/**
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* 加载行业数据
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*/
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const loadIndustryData = async () => {
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// 防止重复加载(处理 StrictMode 双重调用)
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if (hasLoadedRef.current || isLoadingRef.current) {
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logger.debug('IndustryContext', '跳过重复加载', {
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hasLoaded: hasLoadedRef.current,
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isLoading: isLoadingRef.current
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});
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return industryData;
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}
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try {
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isLoadingRef.current = true;
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setLoading(true);
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setError(null);
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logger.debug('IndustryContext', '开始加载行业数据');
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// 1. 先尝试从缓存加载
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const cachedData = loadFromCache();
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if (cachedData && cachedData.length > 0) {
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setIndustryData(cachedData);
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hasLoadedRef.current = true;
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return cachedData;
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}
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// 2. 缓存不存在或过期,调用 API
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logger.debug('IndustryContext', '缓存无效,调用API获取数据');
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const response = await industryService.getClassifications();
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if (response.success && response.data && response.data.length > 0) {
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setIndustryData(response.data);
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saveToCache(response.data);
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hasLoadedRef.current = true;
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logger.debug('IndustryContext', 'API数据加载成功', {
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count: response.data.length
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});
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return response.data;
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} else {
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throw new Error('API返回数据为空');
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}
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} catch (err) {
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// 3. API 失败,回退到静态数据
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logger.warn('IndustryContext', 'API加载失败,使用静态数据', {
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error: err.message
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});
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setError(err.message);
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setIndustryData(staticIndustryData);
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hasLoadedRef.current = true;
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return staticIndustryData;
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} finally {
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setLoading(false);
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isLoadingRef.current = false;
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}
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};
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/**
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* 刷新行业数据(清除缓存并重新加载)
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*/
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const refreshIndustryData = async () => {
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logger.debug('IndustryContext', '刷新行业数据,清除缓存');
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localStorage.removeItem(CACHE_KEY);
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hasLoadedRef.current = false;
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isLoadingRef.current = false;
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return loadIndustryData();
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};
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// 组件挂载时自动加载数据
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useEffect(() => {
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loadIndustryData();
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// eslint-disable-next-line react-hooks/exhaustive-deps
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}, []);
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const value = {
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industryData, // 行业数据(静态)
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loading: false, // 静态数据无需加载
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error: null, // 静态数据无错误
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loadIndustryData: () => { // 兼容旧接口,返回数据
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return Promise.resolve(industryData);
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},
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refreshIndustryData: () => { // 兼容旧接口,返回数据
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return Promise.resolve(industryData);
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}
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industryData,
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loading,
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error,
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loadIndustryData,
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refreshIndustryData
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};
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return (
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