init project

QRCodeService/Controllers/ImageController.cs

@@ -0,0 +1,29 @@
+using Microsoft.AspNetCore.Http;
+using Microsoft.AspNetCore.Mvc;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Threading.Tasks;
+using QRCoder;
+using System.IO;
+
+namespace QRCodeService.Controllers
+{
+    [Route("api/[controller]")]
+    [ApiController]
+    public class ImageController : ControllerBase
+    {
+        [Route("{shortCode}")]
+        public IActionResult Get(string shortCode)
+        {
+            var qrCodeGenerator = new QRCodeGenerator();
+            var data = qrCodeGenerator.CreateQrCode("www.baidu.com", QRCodeGenerator.ECCLevel.Q);
+            var qrCode = new QRCode(data);
+            using (var stream = new MemoryStream())
+            {
+                qrCode.GetGraphic(20).Save(stream, System.Drawing.Imaging.ImageFormat.Png);
+                return File(stream.ToArray(), "image/png", "qrcode.png");
+            }
+        }
+    }
+}