asp.net core输出中文乱码的问题

原文:asp.net core输出中文乱码的问题

摘要

在学习asp.net core的时候，尝试在控制台，或者页面上输出中文，会出现乱码的问题。

问题重现

新建控制台和站点

    public class Program{public static void Main(string[] args){           Console.WriteLine("您好，北京欢迎你");Console.Read();}}

站点

    public class Startup{// This method gets called by the runtime. Use this method to add services to the container.// For more information on how to configure your application, visit http://go.microsoft.com/fwlink/?LinkID=398940public void ConfigureServices(IServiceCollection services){}// This method gets called by the runtime. Use this method to configure the HTTP request pipeline.public void Configure(IApplicationBuilder app, IHostingEnvironment env, ILoggerFactory loggerFactory){loggerFactory.AddConsole();if (env.IsDevelopment()){app.UseDeveloperExceptionPage();}app.Run(async (context) =>{await context.Response.WriteAsync("您好，北京欢迎你");});}}

那么我们获取“GB2312”编码，然后对其编码呢？

        public static void Main(string[] args){Console.WriteLine("您好，北京欢迎你");try{Console.WriteLine(Encoding.GetEncoding("GB2312"));}catch (Exception ex){Console.WriteLine(ex.Message);}Console.Read();}}

'GB2312' is not a supported encoding name. For information on defining a custom encoding, see the documentation for the Encoding.RegisterProvider method.
Parameter name: name

上面的大概意思是Encoding 不支持GB2312编码，需要使用Encoding.RegisterProvider方法进行注册Provider。

            try{Encoding.RegisterProvider(CodePagesEncodingProvider.Instance);Console.WriteLine(Encoding.GetEncoding("GB2312"));}catch (Exception ex){Console.WriteLine(ex.Message);}Console.Read();

CodePagesEncodingProvider在Nuget包System.Text.Encoding.CodePages中

      "System.Text.Encoding.CodePages/4.0.1": {"type": "package","dependencies": {"Microsoft.NETCore.Platforms": "1.0.1","System.Collections": "4.0.11","System.Globalization": "4.0.11","System.IO": "4.1.0","System.Reflection": "4.1.0","System.Resources.ResourceManager": "4.0.1","System.Runtime": "4.1.0","System.Runtime.Extensions": "4.1.0","System.Runtime.Handles": "4.0.1","System.Runtime.InteropServices": "4.1.0","System.Text.Encoding": "4.0.11","System.Threading": "4.0.11"},"compile": {"ref/netstandard1.3/System.Text.Encoding.CodePages.dll": {}},"runtimeTargets": {"runtimes/unix/lib/netstandard1.3/System.Text.Encoding.CodePages.dll": {"assetType": "runtime","rid": "unix"},"runtimes/win/lib/netstandard1.3/System.Text.Encoding.CodePages.dll": {"assetType": "runtime","rid": "win"}}},

好了，我们修改下代码，先注册，然后输出中文

    try{Encoding.RegisterProvider(CodePagesEncodingProvider.Instance);Console.WriteLine(Encoding.GetEncoding("GB2312"));Console.WriteLine("您好，北京欢迎你");}catch (Exception ex){Console.WriteLine(ex.Message);}