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.gitattributes

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+###############################################################################
+# Set default behavior to automatically normalize line endings.
+###############################################################################
+* text=auto
+
+###############################################################################
+# Set default behavior for command prompt diff.
+#
+# This is need for earlier builds of msysgit that does not have it on by
+# default for csharp files.
+# Note: This is only used by command line
+###############################################################################
+#*.cs     diff=csharp
+
+###############################################################################
+# Set the merge driver for project and solution files
+#
+# Merging from the command prompt will add diff markers to the files if there
+# are conflicts (Merging from VS is not affected by the settings below, in VS
+# the diff markers are never inserted). Diff markers may cause the following 
+# file extensions to fail to load in VS. An alternative would be to treat
+# these files as binary and thus will always conflict and require user
+# intervention with every merge. To do so, just uncomment the entries below
+###############################################################################
+#*.sln       merge=binary
+#*.csproj    merge=binary
+#*.vbproj    merge=binary
+#*.vcxproj   merge=binary
+#*.vcproj    merge=binary
+#*.dbproj    merge=binary
+#*.fsproj    merge=binary
+#*.lsproj    merge=binary
+#*.wixproj   merge=binary
+#*.modelproj merge=binary
+#*.sqlproj   merge=binary
+#*.wwaproj   merge=binary
+
+###############################################################################
+# behavior for image files
+#
+# image files are treated as binary by default.
+###############################################################################
+#*.jpg   binary
+#*.png   binary
+#*.gif   binary
+
+###############################################################################
+# diff behavior for common document formats
+# 
+# Convert binary document formats to text before diffing them. This feature
+# is only available from the command line. Turn it on by uncommenting the 
+# entries below.
+###############################################################################
+#*.doc   diff=astextplain
+#*.DOC   diff=astextplain
+#*.docx  diff=astextplain
+#*.DOCX  diff=astextplain
+#*.dot   diff=astextplain
+#*.DOT   diff=astextplain
+#*.pdf   diff=astextplain
+#*.PDF   diff=astextplain
+#*.rtf   diff=astextplain
+#*.RTF   diff=astextplain

.gitignore

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+## Ignore Visual Studio temporary files, build results, and
+## files generated by popular Visual Studio add-ons.
+
+# User-specific files
+*.suo
+*.user
+*.userosscache
+*.sln.docstates
+
+# User-specific files (MonoDevelop/Xamarin Studio)
+*.userprefs
+
+# Build results
+[Dd]ebug/
+[Dd]ebugPublic/
+[Rr]elease/
+[Rr]eleases/
+x64/
+x86/
+bld/
+[Bb]in/
+[Oo]bj/
+[Ll]og/
+
+# Visual Studio 2015 cache/options directory
+.vs/
+# Uncomment if you have tasks that create the project's static files in wwwroot
+#wwwroot/
+
+# MSTest test Results
+[Tt]est[Rr]esult*/
+[Bb]uild[Ll]og.*
+
+# NUNIT
+*.VisualState.xml
+TestResult.xml
+
+# Build Results of an ATL Project
+[Dd]ebugPS/
+[Rr]eleasePS/
+dlldata.c
+
+# DNX
+project.lock.json
+project.fragment.lock.json
+artifacts/
+
+*_i.c
+*_p.c
+*_i.h
+*.ilk
+*.meta
+*.obj
+*.pch
+*.pdb
+*.pgc
+*.pgd
+*.rsp
+*.sbr
+*.tlb
+*.tli
+*.tlh
+*.tmp
+*.tmp_proj
+*.log
+*.vspscc
+*.vssscc
+.builds
+*.pidb
+*.svclog
+*.scc
+
+# Chutzpah Test files
+_Chutzpah*
+
+# Visual C++ cache files
+ipch/
+*.aps
+*.ncb
+*.opendb
+*.opensdf
+*.sdf
+*.cachefile
+*.VC.db
+*.VC.VC.opendb
+
+# Visual Studio profiler
+*.psess
+*.vsp
+*.vspx
+*.sap
+
+# TFS 2012 Local Workspace
+$tf/
+
+# Guidance Automation Toolkit
+*.gpState
+
+# ReSharper is a .NET coding add-in
+_ReSharper*/
+*.[Rr]e[Ss]harper
+*.DotSettings.user
+
+# JustCode is a .NET coding add-in
+.JustCode
+
+# TeamCity is a build add-in
+_TeamCity*
+
+# DotCover is a Code Coverage Tool
+*.dotCover
+
+# NCrunch
+_NCrunch_*
+.*crunch*.local.xml
+nCrunchTemp_*
+
+# MightyMoose
+*.mm.*
+AutoTest.Net/
+
+# Web workbench (sass)
+.sass-cache/
+
+# Installshield output folder
+[Ee]xpress/
+
+# DocProject is a documentation generator add-in
+DocProject/buildhelp/
+DocProject/Help/*.HxT
+DocProject/Help/*.HxC
+DocProject/Help/*.hhc
+DocProject/Help/*.hhk
+DocProject/Help/*.hhp
+DocProject/Help/Html2
+DocProject/Help/html
+
+# Click-Once directory
+publish/
+
+# Publish Web Output
+*.[Pp]ublish.xml
+*.azurePubxml
+# TODO: Comment the next line if you want to checkin your web deploy settings
+# but database connection strings (with potential passwords) will be unencrypted
+#*.pubxml
+*.publishproj
+
+# Microsoft Azure Web App publish settings. Comment the next line if you want to
+# checkin your Azure Web App publish settings, but sensitive information contained
+# in these scripts will be unencrypted
+PublishScripts/
+
+# NuGet Packages
+*.nupkg
+# The packages folder can be ignored because of Package Restore
+**/packages/*
+# except build/, which is used as an MSBuild target.
+!**/packages/build/
+# Uncomment if necessary however generally it will be regenerated when needed
+#!**/packages/repositories.config
+# NuGet v3's project.json files produces more ignoreable files
+*.nuget.props
+*.nuget.targets
+
+# Microsoft Azure Build Output
+csx/
+*.build.csdef
+
+# Microsoft Azure Emulator
+ecf/
+rcf/
+
+# Windows Store app package directories and files
+AppPackages/
+BundleArtifacts/
+Package.StoreAssociation.xml
+_pkginfo.txt
+
+# Visual Studio cache files
+# files ending in .cache can be ignored
+*.[Cc]ache
+# but keep track of directories ending in .cache
+!*.[Cc]ache/
+
+# Others
+ClientBin/
+~$*
+*~
+*.dbmdl
+*.dbproj.schemaview
+*.jfm
+*.pfx
+*.publishsettings
+node_modules/
+orleans.codegen.cs
+
+# Since there are multiple workflows, uncomment next line to ignore bower_components
+# (https://github.com/github/gitignore/pull/1529#issuecomment-104372622)
+#bower_components/
+
+# RIA/Silverlight projects
+Generated_Code/
+
+# Backup & report files from converting an old project file
+# to a newer Visual Studio version. Backup files are not needed,
+# because we have git ;-)
+_UpgradeReport_Files/
+Backup*/
+UpgradeLog*.XML
+UpgradeLog*.htm
+
+# SQL Server files
+*.mdf
+*.ldf
+
+# Business Intelligence projects
+*.rdl.data
+*.bim.layout
+*.bim_*.settings
+
+# Microsoft Fakes
+FakesAssemblies/
+
+# GhostDoc plugin setting file
+*.GhostDoc.xml
+
+# Node.js Tools for Visual Studio
+.ntvs_analysis.dat
+
+# Visual Studio 6 build log
+*.plg
+
+# Visual Studio 6 workspace options file
+*.opt
+
+# Visual Studio LightSwitch build output
+**/*.HTMLClient/GeneratedArtifacts
+**/*.DesktopClient/GeneratedArtifacts
+**/*.DesktopClient/ModelManifest.xml
+**/*.Server/GeneratedArtifacts
+**/*.Server/ModelManifest.xml
+_Pvt_Extensions
+
+# Paket dependency manager
+.paket/paket.exe
+paket-files/
+
+# FAKE - F# Make
+.fake/
+
+# JetBrains Rider
+.idea/
+*.sln.iml
+
+# CodeRush
+.cr/
+
+# Python Tools for Visual Studio (PTVS)
+__pycache__/
+*.pyc

DemoMailKit/DemoMailKit.sln

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+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio 15
+VisualStudioVersion = 15.0.27130.2024
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "MyMailKit", "MyMailKit\MyMailKit.csproj", "{BAAB7575-0382-46FF-8645-E566AA36A198}"
+EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Utility", "Utility\Utility.csproj", "{49A9CCEF-7B2D-4A28-A59A-B2CB5F608896}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{BAAB7575-0382-46FF-8645-E566AA36A198}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{BAAB7575-0382-46FF-8645-E566AA36A198}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{BAAB7575-0382-46FF-8645-E566AA36A198}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{BAAB7575-0382-46FF-8645-E566AA36A198}.Release|Any CPU.Build.0 = Release|Any CPU
+		{49A9CCEF-7B2D-4A28-A59A-B2CB5F608896}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{49A9CCEF-7B2D-4A28-A59A-B2CB5F608896}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{49A9CCEF-7B2D-4A28-A59A-B2CB5F608896}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{49A9CCEF-7B2D-4A28-A59A-B2CB5F608896}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ExtensibilityGlobals) = postSolution
+		SolutionGuid = {CCE4CEA9-6B31-4BEC-A850-8D7352FA1032}
+	EndGlobalSection
+EndGlobal

DemoMailKit/MyMailKit/Config/Mail.json

@@ -0,0 +1,7 @@
+{
+  "Name": "MyMailSys",
+  "Host": "smtp.163.com",
+  "Address": "yq1989135147@163.com",
+  "Password": "yq@198913",
+  "Port": 25
+}

DemoMailKit/MyMailKit/Controllers/MailController.cs

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+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Linq;
+using System.Threading.Tasks;
+using Microsoft.AspNetCore.Mvc;
+using Microsoft.Extensions.Options;
+using MyMailKit.Models.Dtos;
+using Utility;
+using Utility.Mail;
+
+// For more information on enabling Web API for empty projects, visit https://go.microsoft.com/fwlink/?LinkID=397860
+
+namespace MyMailKit.Controllers
+{
+
+    [Route("mailapi/Mail/[action]")]
+    public class MailController : Controller
+    {
+        private readonly MailConfig mailConfig;
+        public MailController(IOptions<MailConfig> configClassAccesser)
+        {
+            mailConfig = configClassAccesser.Value;
+        }
+
+        [HttpPost]
+        public async Task<string> SendMail(MailDto dto)
+        {
+            List<string> fileNameList = new List<string>();
+            List<Stream> streamList = new List<Stream>();
+            var files = Request.Form.Files;
+            foreach (var item in files)
+            {
+                var fileName = item.FileName;
+                var memoryStream = new MemoryStream();
+                await item.CopyToAsync(memoryStream);
+                streamList.Add(memoryStream);
+                fileNameList.Add(fileName);
+            }
+
+
+            var flag = MailUtil.SendMail(mailConfig, dto.AddressList, dto.Title, dto.Content, streamList, fileNameList).Result;
+            if (flag)
+                return "发送成功！";
+            return "发送失败";
+        }
+
+    }
+}

DemoMailKit/MyMailKit/Models/Dtos/MailDtos.cs

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+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Threading.Tasks;
+
+namespace MyMailKit.Models.Dtos
+{
+    public class MailDto
+    {
+        /// <summary>
+        /// 邮件标题
+        /// </summary>
+        public string Title { get; set; } = "";
+        /// <summary>
+        /// 邮件内容(纯文本/html)
+        /// </summary>
+        public string Content { get; set; } = "";
+        /// <summary>
+        /// 收件方邮件地址列表
+        /// </summary>
+        public List<string> AddressList { get; set; } = new List<string>();
+    }
+}

DemoMailKit/MyMailKit/MyMailKit.csproj

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+<Project Sdk="Microsoft.NET.Sdk.Web">
+
+  <PropertyGroup>
+    <TargetFramework>netcoreapp2.0</TargetFramework>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <Folder Include="wwwroot\" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Microsoft.AspNetCore.All" Version="2.0.5" />
+    <PackageReference Include="Microsoft.VisualStudio.Web.CodeGeneration.Design" Version="2.0.2" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <DotNetCliToolReference Include="Microsoft.VisualStudio.Web.CodeGeneration.Tools" Version="2.0.2" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\Utility\Utility.csproj" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <Content Update="Config\Mail.json">
+      <CopyToOutputDirectory>Always</CopyToOutputDirectory>
+    </Content>
+  </ItemGroup>
+
+</Project>

DemoMailKit/MyMailKit/Program.cs

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+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Linq;
+using System.Threading.Tasks;
+using Microsoft.AspNetCore;
+using Microsoft.AspNetCore.Hosting;
+using Microsoft.Extensions.Configuration;
+using Microsoft.Extensions.Logging;
+
+namespace MyMailKit
+{
+    public class Program
+    {
+        public static void Main(string[] args)
+        {
+            BuildWebHost(args).Run();
+        }
+
+        public static IWebHost BuildWebHost(string[] args) =>
+            WebHost.CreateDefaultBuilder(args)
+                .UseStartup<Startup>()
+                .Build();
+    }
+}

DemoMailKit/MyMailKit/Properties/launchSettings.json

@@ -0,0 +1,29 @@
+{
+  "iisSettings": {
+    "windowsAuthentication": false,
+    "anonymousAuthentication": true,
+    "iisExpress": {
+      "applicationUrl": "http://localhost:8600/",
+      "sslPort": 0
+    }
+  },
+  "profiles": {
+    "IIS Express": {
+      "commandName": "IISExpress",
+      "launchBrowser": true,
+      "launchUrl": "api/values",
+      "environmentVariables": {
+        "ASPNETCORE_ENVIRONMENT": "Development"
+      }
+    },
+    "MyMailKit": {
+      "commandName": "Project",
+      "launchBrowser": true,
+      "launchUrl": "api/values",
+      "environmentVariables": {
+        "ASPNETCORE_ENVIRONMENT": "Development"
+      },
+      "applicationUrl": "http://localhost:8601/"
+    }
+  }
+}

DemoMailKit/MyMailKit/Startup.cs

@@ -0,0 +1,46 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Threading.Tasks;
+using Microsoft.AspNetCore.Builder;
+using Microsoft.AspNetCore.Hosting;
+using Microsoft.Extensions.Configuration;
+using Microsoft.Extensions.DependencyInjection;
+using Microsoft.Extensions.Logging;
+using Microsoft.Extensions.Options;
+using Utility.Mail;
+
+namespace MyMailKit
+{
+    public class Startup
+    {
+        public Startup(IConfiguration configuration)
+        {
+            Configuration = configuration;
+            var builder = new ConfigurationBuilder()
+                .AddJsonFile("Config/Mail.json");
+            Configuration = builder.Build();
+        }
+
+        public IConfiguration Configuration { get; }
+
+        // This method gets called by the runtime. Use this method to add services to the container.
+        public void ConfigureServices(IServiceCollection services)
+        {
+            services.Configure<MailConfig>(Configuration);
+
+            services.AddMvc();
+        }
+
+        // This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
+        public void Configure(IApplicationBuilder app, IHostingEnvironment env)
+        {
+            if (env.IsDevelopment())
+            {
+                app.UseDeveloperExceptionPage();
+            }
+
+            app.UseMvc();
+        }
+    }
+}

DemoMailKit/MyMailKit/appsettings.Development.json

@@ -0,0 +1,10 @@
+{
+  "Logging": {
+    "IncludeScopes": false,
+    "LogLevel": {
+      "Default": "Debug",
+      "System": "Information",
+      "Microsoft": "Information"
+    }
+  }
+}

DemoMailKit/MyMailKit/appsettings.json

@@ -0,0 +1,15 @@
+{
+  "Logging": {
+    "IncludeScopes": false,
+    "Debug": {
+      "LogLevel": {
+        "Default": "Warning"
+      }
+    },
+    "Console": {
+      "LogLevel": {
+        "Default": "Warning"
+      }
+    }
+  }
+}

DemoMailKit/Utility/Mail/MailConfig.cs

@@ -0,0 +1,32 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Threading.Tasks;
+
+namespace Utility.Mail
+{
+    public class MailConfig
+    {
+        /// <summary>
+        /// 发件人名称（显示在发件邮箱的已发邮件中的发件人名称）
+        /// </summary>
+        public string Name { get; set; }
+        /// <summary>
+        /// 发件人邮箱地址
+        /// </summary>
+        public string Address { get; set; }
+        /// <summary>
+        /// 发件人邮箱密码
+        /// </summary>
+        public string Password { get; set; }
+        /// <summary>
+        /// 发件人邮箱SMTP服务器地址
+        /// </summary>
+        public string Host { get; set; }
+        /// <summary>
+        /// 端口
+        /// </summary>
+        public int Port { get; set; }
+
+    }
+}

DemoMailKit/Utility/Mail/MailUtil.cs

@@ -0,0 +1,94 @@
+using MailKit.Net.Smtp;
+using MimeKit;
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Linq;
+using System.Threading.Tasks;
+
+namespace Utility.Mail
+{
+
+    /// <summary>
+    /// send email
+    /// </summary>
+    public class MailUtil
+    {
+        private async static Task<bool> SendMail(MimeMessage mailMessage, MailConfig config)
+        {
+            try
+            {
+                var smtpClient = new SmtpClient();
+                smtpClient.Timeout = 10 * 1000;   //设置超时时间
+                smtpClient.Connect(config.Host, config.Port, MailKit.Security.SecureSocketOptions.None);//连接到远程smtp服务器
+                smtpClient.Authenticate(config.Address, config.Password);
+                await smtpClient.SendAsync(mailMessage);//发送邮件
+                smtpClient.Disconnect(true);
+                return true;
+
+            }
+            catch
+            {
+                throw;
+            }
+
+        }
+
+        /// <summary>
+        ///发送邮件
+        /// </summary>
+        /// <param name="config">配置</param>
+        /// <param name="receives">接收人</param>
+        /// <param name="sender">发送人</param>
+        /// <param name="subject">标题</param>
+        /// <param name="body">内容</param>
+        /// <param name="attachments">附件</param>
+        /// <param name="fileName">附件名</param>
+        /// <returns></returns>
+        public async static Task<bool> SendMail(MailConfig config, List<string> receives, string subject, string body, List<Stream> attachmentsList = null, List<string> fileNameList = null)
+        {
+            var fromMailAddress = new MailboxAddress(config.Name, config.Address);
+
+            var mailMessage = new MimeMessage();
+            mailMessage.From.Add(fromMailAddress);
+
+            foreach (var add in receives)
+            {
+                var toMailAddress = new MailboxAddress(add);
+                mailMessage.To.Add(toMailAddress);
+            }
+            var bodyBuilder = new BodyBuilder() { HtmlBody = body };
+
+            //附件
+            if (attachmentsList != null && attachmentsList.Count > 0)
+            {
+
+                for (int i = 0; i < attachmentsList.Count; i++)
+                {
+                    var fileName = fileNameList != null && fileNameList.Count > 0 ? fileNameList[i] : "";
+                    if (string.IsNullOrEmpty(fileName))
+                    {
+                        fileName = "未命名文件.txt";
+                    }
+                    var attachment = new MimePart(new ContentType("image", "png"))
+                    {
+                        Content = new MimeContent(attachmentsList[i]),
+                        ContentDisposition = new ContentDisposition(ContentDisposition.Attachment),
+                        ContentTransferEncoding = ContentEncoding.Base64,
+                    };
+                    attachment.ContentType.Parameters.Add("GB18030", "name", fileName);
+                    attachment.ContentDisposition.Parameters.Add("GB18030", "filename", fileName);
+
+                    bodyBuilder.Attachments.Add(attachment);
+
+                }
+            }
+
+            mailMessage.Body = bodyBuilder.ToMessageBody();
+            mailMessage.Subject = subject;
+
+            return await SendMail(mailMessage, config);
+
+        }
+    }
+}

DemoMailKit/Utility/Utility.csproj

@@ -0,0 +1,11 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>netcoreapp2.0</TargetFramework>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="MailKit" Version="2.0.1" />
+  </ItemGroup>
+
+</Project>