From 15eabfdabf30973c1e99b015060b7da2190ccdf1 Mon Sep 17 00:00:00 2001
From: 13693261870 <252740454@qq.com>
Date: 星期六, 06 一月 2024 15:47:26 +0800
Subject: [PATCH] 获取图片的GPS信息
---
JiangSu/JiangSu.csproj | 3
JiangSu/index.html | 5
JiangSu/Models/FileDesc.cs | 24 ++++
JiangSu/cs/Tools.cs | 104 ++++++++++++++++++++
JiangSu/Controllers/ImgController.cs | 58 +++++++++++
JiangSu/App_Start/WebApiConfig.cs | 7 +
JiangSu/cs/CustomMultipartFormDataStreamProvider.cs | 23 ++++
JiangSu/cs/NoBufferPolicySelector.cs | 27 +++++
8 files changed, 249 insertions(+), 2 deletions(-)
diff --git a/JiangSu/App_Start/WebApiConfig.cs b/JiangSu/App_Start/WebApiConfig.cs
index 4a89acf..fbc6810 100644
--- a/JiangSu/App_Start/WebApiConfig.cs
+++ b/JiangSu/App_Start/WebApiConfig.cs
@@ -1,8 +1,10 @@
-锘縰sing Newtonsoft.Json.Converters;
+锘縰sing JiangSu.cs;
+using Newtonsoft.Json.Converters;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web.Http;
+using System.Web.Http.Hosting;
namespace JiangSu
{
@@ -17,6 +19,9 @@
defaults: new { id = RouteParameter.Optional }
);
+ // 娉ㄥ唽鎵╁睍涓绘満缂撳瓨Policy
+ GlobalConfiguration.Configuration.Services.Replace(typeof(IHostBufferPolicySelector), new NoBufferPolicySelector());
+
// 灞忚斀杩斿洖XML鏍煎紡
GlobalConfiguration.Configuration.Formatters.XmlFormatter.SupportedMediaTypes.Clear();
diff --git a/JiangSu/Controllers/ImgController.cs b/JiangSu/Controllers/ImgController.cs
index a2e0a22..a6da6c5 100644
--- a/JiangSu/Controllers/ImgController.cs
+++ b/JiangSu/Controllers/ImgController.cs
@@ -2,15 +2,23 @@
using JiangSu.Models;
using System;
using System.Collections.Generic;
+using System.IO;
using System.Linq;
using System.Net;
using System.Net.Http;
+using System.Net.Http.Headers;
+using System.Threading.Tasks;
using System.Web.Http;
+using System.Web;
namespace JiangSu.Controllers
{
public class ImgController : ApiController
{
+ public static string uploadPath = "Images";
+
+ public static List<string> extension = new List<string> { ".jpg", "png" };
+
[HttpGet]
public List<Img> SelectByPage(string name, int pageSize = 10, int pageIndex = 1)
{
@@ -86,5 +94,55 @@
return 0;
}
}
+
+ [HttpPost]
+ public Task<IEnumerable<FileDesc>> Post()
+ {
+ string root = Path.Combine(AppDomain.CurrentDomain.BaseDirectory, uploadPath);
+ if (!Directory.Exists(root)) Directory.CreateDirectory(root);
+
+ if (!Request.Content.IsMimeMultipartContent()) throw new HttpResponseException(HttpStatusCode.UnsupportedMediaType);
+
+ var provider = new CustomMultipartFormDataStreamProvider(root);
+ var task = Request.Content.ReadAsMultipartAsync(provider).ContinueWith<IEnumerable<FileDesc>>(t =>
+ {
+ if (t.IsFaulted || t.IsCanceled) throw new HttpResponseException(HttpStatusCode.InternalServerError);
+
+ List<FileDesc> infos = new List<FileDesc>();
+ foreach (MultipartFileData f in provider.FileData)
+ {
+ FileInfo info = new FileInfo(f.LocalFileName);
+ if (!extension.Contains(info.Extension.ToLower()))
+ {
+ File.Delete(f.LocalFileName);
+ continue;
+ }
+
+ string md5 = Tools.CalcFileMD5(f.LocalFileName);
+ string newName = md5 + info.Extension;
+ string newFile = Path.Combine(root, uploadPath, newName);
+
+ Img img = new Img();
+ img.name = info.Name;
+ img.path = uploadPath + "\\" + newName;
+ img.geom = Tools.GetImgGps(f.LocalFileName);
+
+ if (!File.Exists(newFile)) File.Move(f.LocalFileName, newFile);
+ int rows = ImgDAL.Insert(img);
+
+ infos.Add(new FileDesc(info.Name, info.Length));
+ }
+
+ return infos;
+ });
+
+ return task;
+ }
+
+ [HttpGet]
+ public string GetGps()
+ {
+ return Tools.GetImgGps(@"D:\SEM\鐥呭绀轰緥_pos\1.jpg");
+ }
}
}
diff --git a/JiangSu/JiangSu.csproj b/JiangSu/JiangSu.csproj
index 3b68141..273178e 100644
--- a/JiangSu/JiangSu.csproj
+++ b/JiangSu/JiangSu.csproj
@@ -142,17 +142,20 @@
<Compile Include="Controllers\OpController.cs" />
<Compile Include="Controllers\ValuesController.cs" />
<Compile Include="Controllers\GridController.cs" />
+ <Compile Include="cs\CustomMultipartFormDataStreamProvider.cs" />
<Compile Include="cs\GridDAL.cs" />
<Compile Include="cs\ImgDAL.cs" />
<Compile Include="cs\LogOut.cs" />
<Compile Include="cs\ModelDAL.cs" />
<Compile Include="cs\ModelHandler.cs" />
+ <Compile Include="cs\NoBufferPolicySelector.cs" />
<Compile Include="cs\PostgreHelper.cs" />
<Compile Include="cs\SQLiteHelper.cs" />
<Compile Include="cs\Tools.cs" />
<Compile Include="Global.asax.cs">
<DependentUpon>Global.asax</DependentUpon>
</Compile>
+ <Compile Include="Models\FileDesc.cs" />
<Compile Include="Models\Grid.cs" />
<Compile Include="Models\Img.cs" />
<Compile Include="Models\Model.cs" />
diff --git a/JiangSu/Models/FileDesc.cs b/JiangSu/Models/FileDesc.cs
new file mode 100644
index 0000000..d4a0b82
--- /dev/null
+++ b/JiangSu/Models/FileDesc.cs
@@ -0,0 +1,24 @@
+锘縰sing JiangSu.cs;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Web;
+
+namespace JiangSu.Models
+{
+ /// <summary>
+ /// 鏂囦欢鎻忚堪
+ /// </summary>
+ public class FileDesc
+ {
+ public FileDesc(string name, long length)
+ {
+ this.Name = name;
+ this.Length = Tools.FormatBytes(length);
+ }
+
+ public string Name { set; get; }
+
+ public string Length { set; get; }
+ }
+}
diff --git a/JiangSu/cs/CustomMultipartFormDataStreamProvider.cs b/JiangSu/cs/CustomMultipartFormDataStreamProvider.cs
new file mode 100644
index 0000000..2dcf539
--- /dev/null
+++ b/JiangSu/cs/CustomMultipartFormDataStreamProvider.cs
@@ -0,0 +1,23 @@
+锘縰sing System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Net.Http;
+using System.Web;
+
+namespace JiangSu.cs
+{
+ public class CustomMultipartFormDataStreamProvider : MultipartFormDataStreamProvider
+ {
+ public CustomMultipartFormDataStreamProvider(string path)
+ : base(path)
+ { }
+
+ public override string GetLocalFileName(System.Net.Http.Headers.HttpContentHeaders headers)
+ {
+ //string name = !string.IsNullOrWhiteSpace(headers.ContentDisposition.FileName) ? headers.ContentDisposition.FileName : "NoName";
+ //return name.Replace("\"", string.Empty);
+
+ return headers.ContentDisposition.FileName.Replace("\"", string.Empty);
+ }
+ }
+}
\ No newline at end of file
diff --git a/JiangSu/cs/NoBufferPolicySelector.cs b/JiangSu/cs/NoBufferPolicySelector.cs
new file mode 100644
index 0000000..2a4e08a
--- /dev/null
+++ b/JiangSu/cs/NoBufferPolicySelector.cs
@@ -0,0 +1,27 @@
+锘縰sing System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Net.Http;
+using System.Web;
+using System.Web.Http.WebHost;
+
+namespace JiangSu.cs
+{
+ public class NoBufferPolicySelector : WebHostBufferPolicySelector
+ {
+ public override bool UseBufferedInputStream(object hostContext)
+ {
+ var context = hostContext as HttpContextBase;
+
+ if (context != null)
+ {
+ if (context.Request.HttpMethod == HttpMethod.Post.ToString() && context.Request.ContentLength > 102400)
+ {
+ return false;
+ }
+ }
+
+ return true;
+ }
+ }
+}
diff --git a/JiangSu/cs/Tools.cs b/JiangSu/cs/Tools.cs
index 69e3b2e..c4e9961 100644
--- a/JiangSu/cs/Tools.cs
+++ b/JiangSu/cs/Tools.cs
@@ -3,8 +3,12 @@
using System.Collections.Generic;
using System.Data.Common;
using System.Data.SQLite;
+using System.Drawing;
+using System.Drawing.Imaging;
+using System.IO;
using System.Linq;
using System.Reflection;
+using System.Security.Cryptography;
using System.Web;
namespace JiangSu.cs
@@ -92,5 +96,105 @@
return list.ToArray();
}
+
+ /// <summary>
+ /// 瀛楄妭鏍煎紡鍖�
+ /// </summary>
+ public static string FormatBytes(long bytes)
+ {
+ string[] Suffix = { "Byte", "KB", "MB", "GB", "TB" };
+
+ int i = 0;
+ double dblSByte = bytes;
+ if (bytes > 1024)
+ for (i = 0; (bytes / 1024) > 0; i++, bytes /= 1024)
+ dblSByte = bytes / 1024.0;
+
+ return String.Format("{0:0.##}{1}", dblSByte, Suffix[i]);
+ }
+
+ /// <summary>
+ /// 璁＄畻鏂囦欢鐨凪D5鐮�
+ /// </summary>
+ public static string CalcFileMD5(string filePath)
+ {
+ using (var md5 = new MD5CryptoServiceProvider())
+ {
+ using (var stream = File.OpenRead(filePath))
+ {
+ byte[] hash = md5.ComputeHash(stream);
+ return BitConverter.ToString(hash).Replace("-", "").ToLower();
+ }
+ }
+ }
+
+ /// <summary>
+ /// 鑾峰彇鍥剧墖鐨凣PS淇℃伅
+ /// </summary>
+ public static string GetImgGps(string path)
+ {
+ Image img = null;
+ try
+ {
+ img = Image.FromFile(path);
+ var items = img.PropertyItems.OrderByDescending(x => x.Id);
+
+ List<string> list = new List<string> { "0", "0", "0" };
+ foreach (PropertyItem item in items)
+ {
+ if (item.Id >= 0x0000 && item.Id <= 0x001e) // 鍙彇Id鑼冨洿涓�0x0000鍒�0x001e
+ {
+ switch (item.Id)
+ {
+ case 0x0002: // 璁剧疆绾害
+ list[1] = GetGpsVal(item.Value);
+ break;
+ case 0x0004: // 璁剧疆缁忓害
+ list[0] = GetGpsVal(item.Value);
+ break;
+ case 0x0006:
+ if (item.Value.Length == 8)
+ {
+ double altitude = BitConverter.ToUInt32(item.Value, 0) * 1.0d / BitConverter.ToUInt32(item.Value, 4);
+ list[2] = altitude.ToString("0.000");
+ }
+ break;
+ }
+ }
+ }
+
+ return string.Format("POINT Z ({0})", string.Join(" ", list.ToArray()));
+ }
+ catch (Exception ex)
+ {
+ LogOut.Error(ex.Message + "\r\n" + ex.StackTrace);
+ return null;
+ }
+ finally
+ {
+ if (null != img) img.Dispose();
+ }
+ }
+
+ /// <summary>
+ /// 鑾峰彇GPS鍊�
+ /// </summary>
+ private static string GetGpsVal(byte[] bytes)
+ {
+ if (bytes.Length != 24) return "0";
+
+ //degrees(灏哹yte[0]~byte[3]杞垚uint, 闄や互byte[4]~byte[7]杞垚鐨剈int)
+ double d = BitConverter.ToUInt32(bytes, 0) * 1.0d / BitConverter.ToUInt32(bytes, 4);
+
+ //minutes(灏哹yte[8]~byte[11]杞垚uint, 闄や互byte[12]~byte[15]杞垚鐨剈int)
+ double m = BitConverter.ToUInt32(bytes, 8) * 1.0d / BitConverter.ToUInt32(bytes, 12);
+
+ //seconds(灏哹yte[16]~byte[19]杞垚uint, 闄や互byte[20]~byte[23]杞垚鐨剈int)
+ double s = BitConverter.ToUInt32(bytes, 16) * 1.0d / BitConverter.ToUInt32(bytes, 20);
+
+ double val = (((s / 60 + m) / 60) + d);
+
+ return val.ToString("0.00000000");
+ }
}
}
diff --git a/JiangSu/index.html b/JiangSu/index.html
index 0b7ab2a..0d7f156 100644
--- a/JiangSu/index.html
+++ b/JiangSu/index.html
@@ -116,7 +116,10 @@
</script>
</head>
<body>
- <a href="http://localhost/JiangSu/Values/Get">Test</a> <br /> <br />
+ <a href="http://localhost/JiangSu/Values/Get">Test</a>
+ <span style="width: 50px;"> </span>
+ <a href="http://localhost/JiangSu/Img/GetGps">GetGps</a>
+ <br /> <br />
<a href="http://localhost/JiangSu/Op/SelectByPage?pageSize=10&pageIndex=1&name=">SelectByPage?pageSize=10&pageIndex=1&name=</a> <br />
--
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