新增打印模板管理功能，包含免密接口和实时通知机制，支持桌面端打印模板的查询和列表展示。更新相关控制器、服务和视图，优化用户体验并增强系统的实时数据同步能力。

2026-05-12 18:29:03 +08:00
parent f5ba828eff
commit fcedc66f7a
32 changed files with 2788 additions and 2 deletions
--- a/yy-admin-master/YY.Admin.Services/Service/Print/PrintDotService.cs
+++ b/yy-admin-master/YY.Admin.Services/Service/Print/PrintDotService.cs
@@ -0,0 +1,109 @@
+using System.Net.WebSockets;
+using System.Text;
+using System.Text.Json;
+using System.Text.Json.Nodes;
+using Microsoft.Extensions.Configuration;
+using YY.Admin.Core.Services;
+
+namespace YY.Admin.Services.Service.Print;
+
+/// <summary>
+/// PrintDot 本地桥接器 WebSocket 客户端。
+/// URL 从 appsettings.json 的 PrintDot:Url 读取，可在运行时通过 <see cref="PrintDotSettings"/> 覆盖。
+/// </summary>
+public class PrintDotService : IPrintDotService
+{
+    private readonly IConfiguration _config;
+    private static readonly JsonSerializerOptions JsonOpts = new() { PropertyNamingPolicy = JsonNamingPolicy.CamelCase };
+
+    public PrintDotService(IConfiguration config)
+    {
+        _config = config;
+    }
+
+    private string ResolveWsUrl()
+    {
+        var url = PrintDotSettings.Current?.WsUrl
+                  ?? _config.GetValue<string>("PrintDot:Url")
+                  ?? "ws://127.0.0.1:1122/ws";
+        return url.TrimEnd('/');
+    }
+
+    public async Task<IReadOnlyList<PrintDotPrinter>> GetPrintersAsync(CancellationToken ct = default)
+    {
+        var wsUrl = ResolveWsUrl();
+        using var ws = new ClientWebSocket();
+        await ws.ConnectAsync(new Uri(wsUrl), ct);
+
+        // 连接后服务端立即推送 printer_list
+        var json = await ReceiveTextAsync(ws, ct);
+        var doc = JsonNode.Parse(json);
+        if (doc?["type"]?.GetValue<string>() == "printer_list")
+        {
+            var arr = doc["data"]?.AsArray();
+            if (arr != null)
+            {
+                return arr
+                    .Where(n => n != null)
+                    .Select(n => new PrintDotPrinter(
+                        Name: n!["name"]?.GetValue<string>()?.Trim() ?? string.Empty,
+                        IsDefault: n["isDefault"]?.GetValue<bool>() ?? false))
+                    .Where(p => !string.IsNullOrWhiteSpace(p.Name))
+                    .ToList();
+            }
+        }
+        return [];
+    }
+
+    public async Task PrintAsync(string printerName, string pdfBase64, string jobName = "QH-MES", int copies = 1, CancellationToken ct = default)
+    {
+        // 去掉 data: 前缀
+        var content = pdfBase64.Trim();
+        var comma = content.IndexOf(',');
+        if (content.StartsWith("data:", StringComparison.OrdinalIgnoreCase) && comma >= 0)
+            content = content[(comma + 1)..];
+
+        var payload = new
+        {
+            printer = printerName,
+            content,
+            job = new { name = jobName, copies = Math.Max(1, copies) }
+        };
+
+        var wsUrl = ResolveWsUrl();
+        using var ws = new ClientWebSocket();
+        await ws.ConnectAsync(new Uri(wsUrl), ct);
+
+        // 先等服务端推送 printer_list 再发任务
+        await ReceiveTextAsync(ws, ct);
+
+        var msg = JsonSerializer.Serialize(payload, JsonOpts);
+        await ws.SendAsync(Encoding.UTF8.GetBytes(msg), WebSocketMessageType.Text, true, ct);
+
+        // 等待打印结果（最多 3 分钟）
+        using var cts = CancellationTokenSource.CreateLinkedTokenSource(ct);
+        cts.CancelAfter(TimeSpan.FromMinutes(3));
+        while (ws.State == WebSocketState.Open)
+        {
+            var response = await ReceiveTextAsync(ws, cts.Token);
+            var resDoc = JsonNode.Parse(response);
+            var status = resDoc?["status"]?.GetValue<string>();
+            if (status == null) continue;
+            if (status == "success") return;
+            throw new InvalidOperationException(resDoc?["message"]?.GetValue<string>() ?? "PrintDot 打印失败");
+        }
+    }
+
+    private static async Task<string> ReceiveTextAsync(ClientWebSocket ws, CancellationToken ct)
+    {
+        var buffer = new ArraySegment<byte>(new byte[64 * 1024]);
+        using var ms = new System.IO.MemoryStream();
+        WebSocketReceiveResult result;
+        do
+        {
+            result = await ws.ReceiveAsync(buffer, ct);
+            ms.Write(buffer.Array!, buffer.Offset, result.Count);
+        } while (!result.EndOfMessage);
+        return Encoding.UTF8.GetString(ms.ToArray());
+    }
+}