实现部分页面前后端相通

gym-manage-uniapp/utils/request.js

@@ -0,0 +1,63 @@
+const luchRequest = require('luch-request')
+const Request = luchRequest.default || luchRequest
+const { generateSignatureHeaders } = require('./signature')
+const store = require('../store/index')
+
+const BASE_URL = 'http://localhost:8084/api'
+
+const http = new Request({
+  baseURL: BASE_URL,
+  timeout: 15000,
+  header: {
+    'Content-Type': 'application/json'
+  }
+})
+
+// 请求拦截器
+http.interceptors.request.use(
+  (config) => {
+    // 注入 JWT token
+    const token = store.getToken()
+    if (token) {
+      config.header = config.header || {}
+      config.header.Authorization = 'Bearer ' + token
+    }
+
+    // 注入签名头
+    const method = (config.method || 'GET').toUpperCase()
+    const url = config.url || ''
+    const body = config.data
+
+    const signatureHeaders = generateSignatureHeaders(method, url, body)
+    config.header = config.header || {}
+    Object.assign(config.header, signatureHeaders)
+
+    return config
+  },
+  (error) => Promise.reject(error)
+)
+
+// 响应拦截器
+http.interceptors.response.use(
+  (response) => {
+    // 直接返回 data，统一解包
+    if (response.statusCode === 200) {
+      return response.data
+    }
+    return response
+  },
+  (error) => {
+    // 401 处理：清除登录态，跳转登录页
+    if (error.statusCode === 401) {
+      store.clearLogin()
+      const pages = getCurrentPages()
+      const currentPage = pages[pages.length - 1]
+      if (currentPage && currentPage.route !== 'pages/login/login') {
+        uni.reLaunch({ url: '/pages/login/login' })
+      }
+    }
+    return Promise.reject(error)
+  }
+)
+
+module.exports = http

gym-manage-uniapp/utils/signature.js

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+const CryptoJS = require('crypto-js')
+
+const SIGNATURE_SECRET = 'NovalonManageSystemSecretKey2026'
+
+/**
+ * 生成 HMAC-SHA256 签名
+ */
+function generateSignature(method, path, query, body, timestamp, nonce) {
+  const stringToSign = [method, path, query || '', body || '', String(timestamp), nonce].join('\n')
+  const signature = CryptoJS.HmacSHA256(stringToSign, SIGNATURE_SECRET)
+  return CryptoJS.enc.Base64.stringify(signature)
+}
+
+/**
+ * 生成随机 nonce
+ */
+function generateNonce() {
+  const timestamp = Date.now().toString(36)
+  const randomPart = Math.random().toString(36).substring(2, 15)
+  return timestamp + '-' + randomPart
+}
+
+/**
+ * 从 URL 解析 path 和 query
+ */
+function parseUrl(url) {
+  if (url.startsWith('http://') || url.startsWith('https://')) {
+    // 小程序环境无 URL 构造函数，手动解析
+    const withoutProtocol = url.substring(url.indexOf('://') + 3)
+    const pathStart = withoutProtocol.indexOf('/')
+    if (pathStart === -1) return { path: '/', query: '' }
+    const pathAndQuery = withoutProtocol.substring(pathStart)
+    const queryIndex = pathAndQuery.indexOf('?')
+    if (queryIndex === -1) return { path: pathAndQuery, query: '' }
+    return { path: pathAndQuery.substring(0, queryIndex), query: pathAndQuery.substring(queryIndex + 1) }
+  }
+  const queryIndex = url.indexOf('?')
+  if (queryIndex === -1) return { path: url, query: '' }
+  return { path: url.substring(0, queryIndex), query: url.substring(queryIndex + 1) }
+}
+
+/**
+ * 生成签名请求头
+ */
+function generateSignatureHeaders(method, url, body) {
+  const timestamp = Date.now()
+  const nonce = generateNonce()
+  const { path, query } = parseUrl(url)
+  const bodyStr = body ? (typeof body === 'string' ? body : JSON.stringify(body)) : ''
+
+  const signature = generateSignature(method.toUpperCase(), path, query, bodyStr, timestamp, nonce)
+
+  return {
+    'X-Signature': signature,
+    'X-Timestamp': String(timestamp),
+    'X-Nonce': nonce
+  }
+}
+
+module.exports = { generateSignatureHeaders }