Compare commits
11 Commits
| Author | SHA1 | Date | |
|---|---|---|---|
| bf36f7aa3f | |||
| 097e466372 | |||
| c1ba6c6d97 | |||
| 2b327cd365 | |||
| 07f8973477 | |||
| 3b02a848c0 | |||
| bde2d35756 | |||
| 4ac5adac3e | |||
| 8c2dcf49a8 | |||
| f400459497 | |||
| 64ac17d6b5 |
@@ -5,6 +5,65 @@ All notable changes to this project will be documented in this file.
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The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
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and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
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## [1.0.51] - 2026-06-15
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### 改进
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- 标签打印字体细化:阈值调回 128,店名改细体,商品名保持粗体
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## [1.0.50] - 2026-06-15
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### 改进
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- 标签打印字体更清晰:采用 2× 超采样渲染,消除热敏打印时反锯齿导致的模糊笔划
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## [1.0.49] - 2026-06-15
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### 改进
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- 二维码链接统一使用 `/app/product/` 路径,扫码后 URL 不再跳变,分享与打开同一个链接
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## [1.0.48] - 2026-06-15
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### 修复
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- 修复分享 `/app/product/` 路径时微信爬虫拿不到 OG 标签的问题(nginx 补充该路径的代理规则)
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- 分享卡片描述规格/系列与门店名分两行显示
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## [1.0.47] - 2026-06-15
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### 修复
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- 微信分享卡片描述补充度数/系列信息,不再只显示规格
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## [1.0.46] - 2026-06-15
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### 修复
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- 微信内打开商品页时顶部标题栏显示商品名称,不再显示"岩美"
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## [1.0.45] - 2026-06-15
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### 修复
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- 修复微信分享卡片标题仍显示"岩美"的问题(HTML 缩进导致字符串匹配失败)
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- 微信分享卡片描述去掉"扫码验真"后缀
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## [1.0.44] - 2026-06-15
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### 改进
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- 微信分享卡片标题改为商品名称(之前仍显示"岩美")
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- 微信分享卡片描述去掉"扫码验真"后缀
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## [1.0.43] - 2026-06-15
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### 修复
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- 修复微信/飞书分享商品链接时卡片只显示"岩美"而不显示商品名称和图片的问题
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## [1.0.42] - 2026-06-15
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### 修复
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- 修复商品二维码扫码页报"index.html not found"的错误
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## [1.0.41] - 2026-06-15
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### 改进
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- 标签打印布局优化:编号字体与度数/日期统一大小,内容整体下移并填满标签底部,店名适当放大
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- 标签度数与规格之间加宽间距,两个字段更易区分
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## [1.0.40] - 2026-06-15
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### 新功能
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@@ -80,7 +80,7 @@ func Load() {
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viper.SetDefault("storage.upload_dir", "./uploads/images")
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viper.SetDefault("storage.base_url", "http://localhost:8080/images")
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viper.SetDefault("storage.public_url", "http://localhost:8081")
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viper.SetDefault("storage.web_dir", "./client/build/web")
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viper.SetDefault("storage.web_dir", "./web")
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if err := viper.ReadInConfig(); err != nil {
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log.Println("[config] no config file found, using defaults and env vars")
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@@ -198,7 +198,7 @@ func (h *ProductHandler) QRCode(c *gin.Context) {
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h.db.Model(&product).Update("public_id", product.PublicID)
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}
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url := config.C.Storage.PublicURL + "/product/" + product.PublicID
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url := config.C.Storage.PublicURL + "/app/product/" + product.PublicID
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if product.Code != "" {
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url += "?code=" + product.Code
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}
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@@ -6,6 +6,7 @@ import (
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"html"
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"net/http"
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"os"
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"regexp"
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"strconv"
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"strings"
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@@ -313,15 +314,19 @@ func (h *PublicHandler) ProductPage(c *gin.Context) {
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// 构造 OG 标签并注入 </head> 前
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ogTags := buildProductOG(product, shopName, config.C.Storage.PublicURL)
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out := strings.Replace(idxHTML, "</head>", ogTags+"</head>", 1)
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ogTitle := buildOGTitle(product)
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// 同时替换 <title> 标签,微信/飞书等平台有时优先读 <title> 而非 og:title
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// 用正则替换避免缩进空格导致字符串不匹配
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titleRe := regexp.MustCompile(`<title>[^<]*</title>`)
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out := titleRe.ReplaceAllString(idxHTML, "<title>"+html.EscapeString(ogTitle)+"</title>")
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out = strings.Replace(out, "</head>", ogTags+"</head>", 1)
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// 禁止缓存,确保爬虫每次都能拿到最新 OG 标签
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c.Header("Cache-Control", "no-store")
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c.Data(http.StatusOK, "text/html; charset=utf-8", []byte(out))
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}
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// buildProductOG 构造基础 Open Graph meta 标签字符串。
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// 所有值经 html.EscapeString 转义,防止 XSS 或破坏 HTML 结构。
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// 无图片时不输出 og:image 行。
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func buildProductOG(product model.Product, shopName, publicURL string) string {
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// og:title:品牌 + 商品名(品牌已含在名字中时不重复)+ 系列
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// buildOGTitle 生成商品的分享标题:品牌 + 商品名(品牌已含在名字中时不重复)+ 系列。
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func buildOGTitle(product model.Product) string {
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title := product.Name
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if product.Brand != "" && !strings.Contains(product.Name, product.Brand) {
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title = product.Brand + title
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@@ -329,15 +334,30 @@ func buildProductOG(product model.Product, shopName, publicURL string) string {
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if product.Series != "" {
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title = title + "(" + product.Series + ")"
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}
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return title
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}
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// og:description:规格(度数/香型/容量)| 门店名正品 · 扫码验真
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desc := product.Spec
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suffix := "正品 · 扫码验真"
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// buildProductOG 构造基础 Open Graph meta 标签字符串。
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// 所有值经 html.EscapeString 转义,防止 XSS 或破坏 HTML 结构。
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// 无图片时不输出 og:image 行。
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func buildProductOG(product model.Product, shopName, publicURL string) string {
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title := buildOGTitle(product)
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// og:description:系列(度数/香型)· 规格(容量/单位)| 门店名正品
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var specParts []string
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if product.Series != "" {
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specParts = append(specParts, product.Series)
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}
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if product.Spec != "" {
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specParts = append(specParts, product.Spec)
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}
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desc := strings.Join(specParts, " · ")
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suffix := "正品"
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if shopName != "" {
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suffix = shopName + suffix
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}
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if desc != "" {
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desc = desc + " | " + suffix
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desc = desc + "\n" + suffix
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} else {
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desc = suffix
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}
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@@ -349,7 +369,7 @@ func buildProductOG(product model.Product, shopName, publicURL string) string {
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}
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// og:url
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pageURL := publicURL + "/product/" + product.PublicID
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pageURL := publicURL + "/app/product/" + product.PublicID
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var sb strings.Builder
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sb.WriteString("\n")
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@@ -189,7 +189,8 @@ double _fitFont(String s, double maxW, double maxH, bool bold, double cap) {
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return size;
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}
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/// 用 dart:ui 把一张标签绘制成 320×160 位图(热敏标签实际尺寸 40×20mm @203dpi)。
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/// 用 dart:ui 把一张标签绘制成位图(热敏标签实际尺寸 40×20mm @203dpi)。
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/// 内部以 2× 超采样(640×320)绘制,转 TSPL 时再降采样,消除反锯齿模糊。
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/// 供 TSPL 裸发和预览渲染共用同一套画布逻辑,确保预览即实际输出。
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Future<ui.Image> _renderLabelBitmap({
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required String shop,
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@@ -199,10 +200,13 @@ Future<ui.Image> _renderLabelBitmap({
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required String date,
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required Uint8List qrBytes,
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}) async {
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const w = 320, h = 160; // 40×20mm @203dpi
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const w = 320, h = 160; // 40×20mm @203dpi(逻辑尺寸)
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const scale = 2; // 2× 超采样,内部以 640×320 绘制
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const sw = w * scale, sh = h * scale;
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final recorder = ui.PictureRecorder();
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final canvas = ui.Canvas(
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recorder, ui.Rect.fromLTWH(0, 0, w.toDouble(), h.toDouble()));
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recorder, ui.Rect.fromLTWH(0, 0, sw.toDouble(), sh.toDouble()));
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canvas.scale(scale.toDouble(), scale.toDouble()); // 坐标系放大,后续坐标不变
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canvas.drawRect(ui.Rect.fromLTWH(0, 0, w.toDouble(), h.toDouble()),
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ui.Paint()..color = const ui.Color(0xFFFFFFFF));
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@@ -224,29 +228,41 @@ Future<ui.Image> _renderLabelBitmap({
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// 扫码溯源:居中于二维码正下方
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_drawText(canvas, '扫码溯源', qrLeft, qrTop + qrS + 2, 14, qrS, center: true);
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// 左侧文字(无字段名标签):按行等比分配高度铺满,字号自适应填充
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// 左侧文字:固定字号 + 自适应行间距(与二维码上下对齐,行距均匀分配剩余空间)
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const lx = 22.0;
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const textMaxW = qrLeft - lx - 6; // 164
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// 字号固定:只有商品名按宽度自适应,其余行均固定,杜绝自动放大
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const double kShopSize = 17.0; // 酒行名,粗体
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const double kSmallSize = 13.0; // 编号 / 度数 / 日期,统一小字
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// 商品名:仅按宽度适配,上限 26px,下限 14px
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final double nameSize = _fitFont(name, textMaxW, 1000, true, 26.0).clamp(14.0, 26.0);
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final codeText = code.isNotEmpty ? '编号:$code' : '';
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final rows = <(String, double, bool)>[
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(shop, 0.9, true),
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(name, 1.5, true),
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if (codeText.isNotEmpty) (codeText, 1.0, false),
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if (degSpec.isNotEmpty) (degSpec, 1.05, false),
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if (date.isNotEmpty) (date, 1.0, false),
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if (shop.isNotEmpty) (shop, kShopSize, false), // 店名细体,突出商品名
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if (name.isNotEmpty) (name, nameSize, true), // 商品名粗体
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if (codeText.isNotEmpty) (codeText, kSmallSize, false),
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if (degSpec.isNotEmpty) (degSpec, kSmallSize, false),
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if (date.isNotEmpty) (date, kSmallSize, false),
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];
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const topY = 4.0, botY = 156.0;
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final totalWeight = rows.fold<double>(0, (a, r) => a + r.$2);
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double yy = topY;
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// 文字区域:整体略低于二维码顶部,底部延伸至扫码溯源文字下方
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const double kTextTop = 16.0; // 比二维码顶部(8)低一些,整体下移
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const double kTextBot = 150.0; // 延伸至底部,减少留白
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const double kLineH = 1.35; // 行高倍数(字号 × 行高 = 该行占用高度)
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final double totalTextH = rows.fold(0.0, (s, r) => s + r.$2 * kLineH);
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final int n = rows.length;
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final double rawGap = n > 0 ? (kTextBot - kTextTop - totalTextH) / (n + 1) : 4.0;
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final double gap = rawGap < 1.5 ? 1.5 : rawGap;
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double yy = kTextTop + gap;
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for (final r in rows) {
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final rowH = (botY - topY) * r.$2 / totalWeight;
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final fs = _fitFont(r.$1, textMaxW, rowH * 0.84, r.$3, 30);
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final ty = yy + (rowH - fs * 1.25) / 2;
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_drawText(canvas, r.$1, lx, ty < yy ? yy : ty, fs, textMaxW, bold: r.$3);
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yy += rowH;
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_drawText(canvas, r.$1, lx, yy, r.$2, textMaxW, bold: r.$3);
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yy += r.$2 * kLineH + gap;
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}
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return recorder.endRecording().toImage(w, h);
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return recorder.endRecording().toImage(sw, sh); // 返回 2× 图(640×320)
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}
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/// 桌面端把「扁平标签」直接画成单色位图,TSPL BITMAP 裸发到热敏机。
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@@ -267,11 +283,13 @@ Future<bool> _printFlatLabelThermal({
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debugPrint('[label] thermal printer = $printer');
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if (printer == null) return false;
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// img 是 2× 超采样图(640×320);TSPL 输出仍是 320×160
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const w = 320, h = 160;
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final img = await _renderLabelBitmap(
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shop: shop, name: name, code: code, degSpec: degSpec, date: date, qrBytes: qrBytes);
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final bd = await img.toByteData(format: ui.ImageByteFormat.rawRgba);
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final rgba = bd!.buffer.asUint8List();
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final sw = img.width; // 640(2×宽)
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// 打包 TSPL(SIZE 用整数,避免固件不认小数导致多走纸)
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const wbytes = (w + 7) >> 3;
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@@ -282,12 +300,18 @@ Future<bool> _printFlatLabelThermal({
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for (int yy = 0; yy < h; yy++) {
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final row = Uint8List(wbytes)..fillRange(0, wbytes, 0xFF); // 默认白 bit=1
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for (int xx = 0; xx < w; xx++) {
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final i = (yy * w + xx) * 4;
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final a = rgba[i + 3];
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final lum = a < 128
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? 255.0
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: 0.299 * rgba[i] + 0.587 * rgba[i + 1] + 0.114 * rgba[i + 2];
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if (lum < 128) row[xx >> 3] &= ~(0x80 >> (xx & 7)); // 黑点 -> bit0
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// 2×2 四像素平均后阈值,消除反锯齿模糊(阈值 160 = 偏灰的边缘算黑)
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double lum = 0;
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for (int dy = 0; dy < 2; dy++) {
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for (int dx = 0; dx < 2; dx++) {
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final i = ((yy * 2 + dy) * sw + (xx * 2 + dx)) * 4;
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final a = rgba[i + 3];
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lum += a < 128
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? 255.0
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: 0.299 * rgba[i] + 0.587 * rgba[i + 1] + 0.114 * rgba[i + 2];
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}
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}
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if (lum / 4 < 128) row[xx >> 3] &= ~(0x80 >> (xx & 7)); // 黑点 -> bit0
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}
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out.add(row);
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}
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@@ -327,7 +351,7 @@ Future<void> printProductLabelImpl({
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final specVal = (spec ?? '').isNotEmpty ? spec! : '';
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final seriesVal = (series ?? '').isNotEmpty ? series! : '';
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// 度数(系列) + 规格 同一行
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final degSpecVal = [seriesVal, specVal].where((s) => s.isNotEmpty).join(' ');
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final degSpecVal = [seriesVal, specVal].where((s) => s.isNotEmpty).join(' ');
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final dateVal = (productionDate ?? '').isNotEmpty
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? (productionDate!.length > 10 ? productionDate.substring(0, 10) : productionDate)
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: '—';
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@@ -484,7 +508,7 @@ Future<void> printProductLabelImpl({
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Future<Uint8List> renderLabelPreviewImpl(LabelData label) async {
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final specVal = (label.spec ?? '').isNotEmpty ? label.spec! : '';
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final seriesVal = (label.series ?? '').isNotEmpty ? label.series! : '';
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final degSpecVal = [seriesVal, specVal].where((s) => s.isNotEmpty).join(' ');
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final degSpecVal = [seriesVal, specVal].where((s) => s.isNotEmpty).join(' ');
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final dateVal = (label.productionDate ?? '').isNotEmpty
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? (label.productionDate!.length > 10
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? label.productionDate!.substring(0, 10)
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@@ -2,6 +2,7 @@ import 'dart:math' as math;
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import 'package:dio/dio.dart';
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import 'package:flutter/gestures.dart';
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import 'package:flutter/material.dart';
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import 'package:flutter/services.dart';
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import 'package:go_router/go_router.dart';
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import 'package:url_launcher/url_launcher.dart';
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import '../../core/config/app_config.dart';
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@@ -54,6 +55,13 @@ class _PublicProductScreenState extends State<PublicProductScreen> {
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);
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final data = (resp.data as Map<String, dynamic>)['data'] as Map<String, dynamic>;
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setState(() { _data = data; _loading = false; });
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// 更新浏览器标签标题(Flutter Web 会写 document.title)
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final name = data['name'] as String? ?? '';
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if (name.isNotEmpty) {
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SystemChrome.setApplicationSwitcherDescription(
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ApplicationSwitcherDescription(label: name, primaryColor: 0xFF8B2331),
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||||
);
|
||||
}
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||||
} catch (e) {
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||||
setState(() { _error = e.toString(); _loading = false; });
|
||||
}
|
||||
|
||||
@@ -55,6 +55,16 @@ server {
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||||
proxy_read_timeout 30s;
|
||||
}
|
||||
|
||||
# Flutter 路由会把 /product/:id 重写为 /app/product/:id(base-href=/app/)
|
||||
# 分享此 URL 时微信爬虫也需要 OG 标签 → 去掉 /app 前缀后转发后端
|
||||
location ~ ^/app/product/ {
|
||||
rewrite ^/app(/product/.+)$ $1 break;
|
||||
proxy_pass http://127.0.0.1:8080;
|
||||
proxy_set_header Host $host;
|
||||
proxy_set_header X-Real-IP $remote_addr;
|
||||
proxy_read_timeout 30s;
|
||||
}
|
||||
|
||||
# 桌面客户端安装包下载(Windows .exe / macOS .zip)
|
||||
location /downloads/ {
|
||||
alias /opt/jiu/downloads/;
|
||||
|
||||
Reference in New Issue
Block a user