diff --git a/controllers/goods.js b/controllers/goods.js
index fa5b6b7..c213d06 100644
--- a/controllers/goods.js
+++ b/controllers/goods.js
@@ -1,4 +1,5 @@
 const { query } = require('../config/database')
+const { toRelativeUrl } = require('../utils/image-url')
 
 async function getGoods(ctx) {
   let sql = 'SELECT * FROM goods WHERE 1=1'
@@ -52,7 +53,7 @@ async function getGoods(ctx) {
 async function getGoodsById(ctx) {
   const goodsId = parseInt(ctx.params.id)
   const goods = await query('SELECT * FROM goods WHERE id = ?', [goodsId])
-  
+
   if (goods.length > 0) {
     ctx.body = {
       code: 200,
@@ -77,6 +78,9 @@ async function createGoods(ctx) {
     return
   }
   
+  // 将图片URL转换为相对路径存储
+  const relativeImages = (images || []).map(img => toRelativeUrl(img))
+  
   const sql = `INSERT INTO goods 
     (name, price, cost_price, unit, category_id, images, stock, pricing_type, is_hot, is_new, remark, goods_no, barcode)
     VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)`
@@ -87,7 +91,7 @@ async function createGoods(ctx) {
     parseFloat(ctx.request.body.costPrice || 0),
     unit,
     categoryId || null,
-    JSON.stringify(images || []),
+    JSON.stringify(relativeImages),
     parseInt(stock) || 0,
     parseInt(pricingType) || 1,
     parseInt(isHot) || 0,
@@ -125,6 +129,9 @@ async function updateGoods(ctx) {
     return
   }
   
+  // 将图片URL转换为相对路径存储
+  const relativeImages = (images || []).map(img => toRelativeUrl(img))
+  
   const sql = `UPDATE goods SET 
     name = ?, price = ?, original_price = ?, unit = ?, category_id = ?, images = ?, 
     stock = ?, pricing_type = ?, is_hot = ?, is_new = ?, description = ?
@@ -136,7 +143,7 @@ async function updateGoods(ctx) {
     parseFloat(ctx.request.body.originalPrice || 0),
     unit,
     categoryId || null,
-    JSON.stringify(images || []),
+    JSON.stringify(relativeImages),
     parseInt(stock) || 0,
     parseInt(pricingType) || 1,
     parseInt(isHot) || 0,
diff --git a/routes/ai.js b/routes/ai.js
index d9ec8bb..243d5d3 100644
--- a/routes/ai.js
+++ b/routes/ai.js
@@ -47,7 +47,7 @@ router.post('/generate-product', async (ctx) => {
         'Content-Type': 'application/json'
       },
       body: JSON.stringify({
-        model: 'deepseek-ai/deepseek-v4-pro',
+        model: 'deepseek-v4-flash',
         messages: [
           {
             role: 'user',
diff --git a/routes/upload.js b/routes/upload.js
index 1d3eedc..b19320a 100644
--- a/routes/upload.js
+++ b/routes/upload.js
@@ -2,7 +2,6 @@ const Router = require('koa-router')
 const multer = require('@koa/multer')
 const path = require('path')
 const fs = require('fs')
-const { IMG_BASE_URL } = require('../config/domain')
 
 const router = new Router()
 
@@ -37,7 +36,8 @@ router.post('/', upload.single('file'), async (ctx) => {
     return
   }
 
-  const fileUrl = `${IMG_BASE_URL}/${ctx.file.filename}`
+  // 存储相对路径，前端使用时拼接域名
+  const fileUrl = `/img/${ctx.file.filename}`
   ctx.body = {
     code: 200,
     message: '上传成功',
diff --git a/utils/image-url.js b/utils/image-url.js
new file mode 100644
index 0000000..0706962
--- /dev/null
+++ b/utils/image-url.js
@@ -0,0 +1,71 @@
+// 图片URL处理工具
+const DOMAIN_CONFIG = require('./domain').DOMAIN_CONFIG;
+
+// 将完整URL转换为相对路径（用于存储到数据库）
+function toRelativeUrl(url) {
+  if (!url) return '';
+  // 移除域名前缀，保留相对路径
+  const baseUrl = DOMAIN_CONFIG.BASE_URL;
+  if (url.startsWith(baseUrl)) {
+    return url.replace(baseUrl, '');
+  }
+  // 移除其他可能的前缀
+  const patterns = [
+    /^https?:\/\/donghy\.top/,
+    /^https?:\/\/110\.42\.255\.239(:\d+)?/,
+    /^https?:\/\/localhost(:\d+)?/
+  ];
+  for (const pattern of patterns) {
+    if (pattern.test(url)) {
+      return url.replace(pattern, '');
+    }
+  }
+  return url;
+}
+
+// 将相对路径转换为完整URL（用于返回给前端）
+function toFullUrl(url) {
+  if (!url) return '';
+  // 如果已经是完整URL，直接返回
+  if (url.startsWith('http://') || url.startsWith('https://')) {
+    return url;
+  }
+  // 如果是相对路径，拼接当前域名
+  const baseUrl = DOMAIN_CONFIG.BASE_URL;
+  if (url.startsWith('/')) {
+    return baseUrl + url;
+  }
+  if (url.startsWith('img/')) {
+    return baseUrl + '/' + url;
+  }
+  return url;
+}
+
+// 处理商品图片字段
+function processGoodsImages(goods) {
+  if (!goods) return goods;
+  
+  const processItem = (item) => {
+    if (item.images) {
+      try {
+        const images = JSON.parse(item.images);
+        const fullUrls = images.map(img => toFullUrl(img));
+        item.images = JSON.stringify(fullUrls);
+      } catch (e) {
+        // 如果不是JSON格式，保持原样
+      }
+    }
+    return item;
+  };
+  
+  if (Array.isArray(goods)) {
+    return goods.map(processItem);
+  }
+  return processItem(goods);
+}
+
+module.exports = {
+  toRelativeUrl,
+  toFullUrl,
+  processGoodsImages
+};