init project

QRCodeService/Controllers/GenController.cs

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+using Domain.AggregateModel.LinkAggregate;
+using Microsoft.AspNetCore.Mvc;
+using QRCodeService.Models;
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Security.Cryptography;
+using Domain.AggregateModel.AppAggregate;
+using Base62;
+using QRCodeService.Extensions;
+
+namespace QRCodeService.Controllers
+{
+    /// <summary>
+    /// 生成二维码图片
+    /// </summary>
+    [Route("api/[controller]")]
+    [ApiController]
+    public class GenController:ControllerBase
+    {
+        readonly ILinkRepository linkRepository;
+        readonly IAppRepository appRepository;
+
+        public GenController(ILinkRepository linkRepository, IAppRepository appRepository)
+        {
+            this.linkRepository = linkRepository;
+            this.appRepository = appRepository;
+        }
+
+        [HttpPost]
+        public async  Task<IActionResult> CreateLink(GenInputModel model)
+        {
+
+            var app = await appRepository.GetAsync(model.AppId);
+            if (app == null)
+            {
+                return BadRequest();
+            }
+            using(var md5 = MD5.Create())
+            {
+                var result = md5.ComputeHash(Encoding.UTF8.GetBytes($"{model.AppId}{model.SuffixUrl}{model.Time}{app.AppKey}"));
+                var sign = BitConverter.ToString(result);
+                if (sign != model.Sign)
+                {
+                    return BadRequest();
+                }
+            }
+            var shortCode = $"{model.SuffixUrl}".ToMD5().ToBase62();
+            var link = new Link(app.BaseUrl, model.SuffixUrl,1);
+            linkRepository.Add(link);
+            await linkRepository.UnitOfWork.SaveEntitiesAsync();
+            return Ok(link.ShortCode);
+        }
+    }
+}

QRCodeService/Controllers/GoController.cs

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+using Domain.AggregateModel.LinkAggregate;
+using Microsoft.AspNetCore.Mvc;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace QRCodeService.Controllers
+{
+    /// <summary>
+    /// 跳转url请求的地址
+    /// </summary>
+    [Route("{shortCode}")]
+    [ApiController]
+    public class GoController: ControllerBase
+    {
+        readonly ILinkRepository LinkRepository; 
+        public GoController(ILinkRepository linkRepository)
+        {
+            LinkRepository = linkRepository;
+        }
+        [HttpGet]
+        public async Task<IActionResult> Get(string shortcode)
+        {
+            var link = await LinkRepository.GetAsync(shortcode);
+            if (link == null)
+            {
+                return NotFound();
+            }
+            return Redirect(link.FullUrl);
+        }
+    }
+}

QRCodeService/Controllers/ImageController.cs

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+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");
+            }
+        }
+    }
+}

QRCodeService/Controllers/PlaygroundController.cs

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+using Base62;
+using Microsoft.AspNetCore.Mvc;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Security.Cryptography;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace QRCodeService.Controllers
+{
+    [Route("[controller]/[action]")]
+    public class PlaygroundController:ControllerBase
+    {
+        public IActionResult GenShortCode(string url)
+        {
+            var codes = new string[2];
+            using (var md5 = MD5.Create())
+            {
+                var chunkSize = 8;
+                var result = md5.ComputeHash(Encoding.UTF8.GetBytes(url));
+                for (int i = 0; i < 2; i++)
+                {
+                    var first = result.Take(chunkSize).ToArray();
+                    //即超过30位的忽略处理
+                    var res = BitConverter.ToInt64(first);
+                    var code = res.ToBase62();
+                    codes[i] = code;
+                    result = result.Skip(chunkSize).ToArray();
+                }
+                return Ok(codes);
+            }
+        } 
+    }
+}