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在 asp.net core 中使用 NewtonsoftJson

亂寫於 更新於 Disqus：
廢話字數： 5.2k 所需傷眼時間 ≈ 5 分鐘

 

這個問題搞了很久 , 想要把老系統的東東轉移到 .net core 上面 , 想說沿用 NewtonsoftJson 變化幅度較小
可是馬上就炸裂了 , 沿用 JsonProperty 但是一直搞不定 , 改成 JsonPropertyName 又正常

net core

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public class Test
{
	//這行正常
	//[JsonPropertyName( "HelloWorld" )]
	[JsonProperty( PropertyName = "HelloWorld" )]
	public string WorldHello { get; set; }
}


[ApiController]
[Route( "[controller]" )]
public class TestController : Controller
{
	[HttpGet("[action]")]
	public string HelloWorld(Test test)
	{
		if (test.WorldHello != null) return test.WorldHello;

		return "HelloWorld";
	}
}

明明已經在 Startup 的 ConfigureServices 加入了以下這行 , 但是在 swagger ui 上面測就是有問題

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services.AddControllers().AddNewtonsoftJson();

折磨了很久以後在老外的 blog 看到
搞了半天原來還要安裝 Swashbuckle.AspNetCore.Newtonsoft 然後在最後面補上這行即可 燒了半天…

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public void ConfigureServices( IServiceCollection services )
{
	services.AddControllers().AddNewtonsoftJson();
	services.AddSwaggerGen( c =>
	 {
		 c.SwaggerDoc( "v1", new OpenApiInfo { Title = "WebApplication2", Version = "v1" } );
	 } );
	services.AddSwaggerGenNewtonsoftSupport();
}

abp

在 abp 上面設定好像會跟順序及檔案有關 , try 了很久才搞定 , 參考強國人的半殘說明
在他官方範例裡面的 Acme.BookStore.Web 這支檔案 BookStoreWebModule 的 PreConfigureServices 要這樣寫

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public override void PreConfigureServices(ServiceConfigurationContext context)
{
	context.Services.PreConfigure<AbpMvcDataAnnotationsLocalizationOptions>(options =>
	{
		options.AddAssemblyResource(
			typeof(BookStoreResource),
			typeof(BookStoreDomainModule).Assembly,
			typeof(BookStoreDomainSharedModule).Assembly,
			typeof(BookStoreApplicationModule).Assembly,
			typeof(BookStoreApplicationContractsModule).Assembly,
			typeof(BookStoreWebModule).Assembly
		);

	});
	//https://blog.csdn.net/dacong/article/details/106201980
	context.Services.PreConfigure<IMvcBuilder>( mvcBuilder =>
	{
		mvcBuilder.AddNewtonsoftJson(
		 options => options.SerializerSettings.ContractResolver = new DefaultContractResolver() );
	} );
	context.Services.PreConfigure<AbpJsonOptions>( options =>
	{
		options.UseHybridSerializer = false;
	} );

}

接著安裝 Swashbuckle.AspNetCore.Newtonsoft 然後在 ConfigureSwaggerServices 加入 services.AddSwaggerGenNewtonsoftSupport()
不然操作 swagger ui 的時候會有問題

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private void ConfigureSwaggerServices(IServiceCollection services)
{
	services.AddAbpSwaggerGen(
		options =>
		{
			options.SwaggerDoc("v1", new OpenApiInfo { Title = "BookStore API", Version = "v1" });
			options.DocInclusionPredicate((docName, description) => true);
			options.CustomSchemaIds(type => type.FullName);
		}
	);
	services.AddSwaggerGenNewtonsoftSupport();
}

最後在 Acme.BookStore.Application 的 BookStoreAppService 加入以下程式碼 , 然後 JsonProperty 應該會正常生效

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/* Inherit your application services from this class.
 */
public abstract class BookStoreAppService : ApplicationService
{
    protected BookStoreAppService()
    {
        LocalizationResource = typeof(BookStoreResource);
    }
}

public class Test
{
    [JsonProperty("HelloWorld")]
    public string WorldHello { get; set; }
}

public class MyAppService : BookStoreAppService
{
    [HttpPost("HelloWorld")]
    public string HelloWorld(Test test)
    {
        return test.WorldHello;
    }
}

最後實在太懶了開點腦洞暴力直接加 , 我另外還有寫 extension , 不過時間寶貴還是跑跑龍套的階段

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using System;
using Microsoft.CodeAnalysis.CSharp;
using Microsoft.CodeAnalysis.Editing;
using Microsoft.CodeAnalysis.CSharp.Syntax;
using System;
using System.IO;
using System.Linq;
using System.Collections.Generic;
using Microsoft.CodeAnalysis;

namespace ConsoleApp7
{
    class Program
    {
        static void Main(string[] args)
        {
            var texts = File.ReadAllText( "Test.cs" );
            var tree = CSharpSyntaxTree.ParseText( texts );
            var root = tree.GetRoot( );
            var lines = File.ReadAllLines( "Test.cs" );
            var members = root.DescendantNodes( ).OfType<MemberDeclarationSyntax>( );
            foreach (var member in members)
            {
                var p = member as PropertyDeclarationSyntax;


                if (p != null)
                {
                    FileLinePositionSpan span = p.SyntaxTree.GetLineSpan( p.Span );
                    int lineNumber = span.StartLinePosition.Line;



                    //撈屬性名稱
                    var name = p.Identifier.Text;
                    //https://stackoverflow.com/questions/35927427/how-to-create-an-attributesyntax-with-a-parameter
                    var attrName = SyntaxFactory.ParseName( "JsonPropertyName" );
                    var arguments = SyntaxFactory.ParseAttributeArgumentList( $"(\"{p.Identifier.Text}\")" );
                    var attribute = SyntaxFactory.Attribute( attrName, arguments ); //MyAttribute("some_param")

                    var attributeList = new SeparatedSyntaxList<AttributeSyntax>( );
                    attributeList = attributeList.Add( attribute );
                    //[MyAttribute("some_param")]
                    var list = SyntaxFactory.AttributeList( attributeList );
                    var newP = p.AddAttributeLists( list );

                    Console.WriteLine( $"{lineNumber}:{newP}" );
                    Console.WriteLine( );
                    lines[lineNumber] = newP.GetText( ).ToString( );
                }
            }

            File.WriteAllLines( "TestNew.cs", lines );
        }

    }
}
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