diff --git a/QRCodeService/Application/Queries/LinkQueries.cs b/QRCodeService/Application/Queries/LinkQueries.cs
index cbec2be..ffd2f77 100644
--- a/QRCodeService/Application/Queries/LinkQueries.cs
+++ b/QRCodeService/Application/Queries/LinkQueries.cs
@@ -25,7 +25,7 @@ namespace QRCodeService.Application.Queries
             {
                 connection.Open();
                 var link = await connection.QueryAsync<Link>(
-                    @"SELECT ShortCode,FullUrl FROM Link WHERE ShortCode = @shortCode",new {shortCode });
+                    @"SELECT ShortCode,FullUrl,AppId FROM Link WHERE ShortCode = @shortCode",new {shortCode });
                 return link.SingleOrDefault();
             }
         }
diff --git a/QRCodeService/Application/Queries/LinkViewModel.cs b/QRCodeService/Application/Queries/LinkViewModel.cs
index 07f566d..b587803 100644
--- a/QRCodeService/Application/Queries/LinkViewModel.cs
+++ b/QRCodeService/Application/Queries/LinkViewModel.cs
@@ -11,5 +11,7 @@ namespace QRCodeService.Application.Queries
         public string ShortCode { get; set; }
 
         public string FullUrl { get; set; }
+
+        public int AppId { get; set; }
     }
 }
diff --git a/QRCodeService/Controllers/ImageController.cs b/QRCodeService/Controllers/ImageController.cs
index 51b3dd8..1bf3b78 100644
--- a/QRCodeService/Controllers/ImageController.cs
+++ b/QRCodeService/Controllers/ImageController.cs
@@ -6,6 +6,8 @@ using System.Linq;
 using System.Threading.Tasks;
 using QRCoder;
 using System.IO;
+using QRCodeService.Application.Queries;
+using QRCodeService.Models;
 
 namespace QRCodeService.Controllers
 {
@@ -13,17 +15,40 @@ namespace QRCodeService.Controllers
     [ApiController]
     public class ImageController : ControllerBase
     {
-        [Route("{shortCode}")]
-        [HttpGet]
-        public IActionResult Get(string shortCode)
+        readonly ILinkQueries linkQueries;
+        readonly IAppQueries appQueries;
+
+        public ImageController(ILinkQueries linkQueries, IAppQueries appQueries)
         {
+            this.linkQueries = linkQueries;
+            this.appQueries = appQueries;
+        }
+
+        [Route("qrcode")]
+        [HttpPost]
+        public async Task<IActionResult> GetImage(GetQRCodeModel input)
+        {
+            var app = await appQueries.GetAppAsync(input.AppId);
+            if (app == null)
+            {
+                return BadRequest();
+            }
+            if (!await input.CheckValidAsync(app.Appkey))
+            {
+                return BadRequest();
+            }
+            var link = await linkQueries.GetLinkAsync(input.ShortCode);
+            if (link.AppId != input.AppId)
+            {
+                return BadRequest();
+            }
             var qrCodeGenerator = new QRCodeGenerator();
-            var data = qrCodeGenerator.CreateQrCode("www.baidu.com", QRCodeGenerator.ECCLevel.Q);
+            var data = qrCodeGenerator.CreateQrCode($"http://localhost:5000/{link.ShortCode}", 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");
+                return File(stream.ToArray(), "image/png");
             }
         }
     }
diff --git a/QRCodeService/Models/GetQRCodeModel.cs b/QRCodeService/Models/GetQRCodeModel.cs
new file mode 100644
index 0000000..8a8dd93
--- /dev/null
+++ b/QRCodeService/Models/GetQRCodeModel.cs
@@ -0,0 +1,13 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace QRCodeService.Models
+{
+    public class GetQRCodeModel:CheckSignModel
+    {
+        public string ShortCode { get; set; }
+    }
+}