簡體   English   中英

調整MVC 4 WebApi XmlSerializer以丟失nameSpace

[英]Adjust MVC 4 WebApi XmlSerializer to lose the nameSpace

我正在開發一個MVC WebAPI,它使用EF和POCO類進行存儲。 我想要做的是從XML中刪除命名空間,以便端點返回並接受沒有它的xml對象。 (json工作得很好)

<ACCOUNT xmlns:i="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://schemas.datacontract.org/2004/07/Platform.Services.AccountService.Data">
<id>22</id>
<City i:nil="true"/>
<Country i:nil="true"/>
<Email>testas@email.com</Email>
<Phone i:nil="true"/> ...

我希望這能奏效

 <ACCOUNT>
    <id>22</id>
    <City i:nil="true"/>
    <Country i:nil="true"/>
    <Email>testas@email.com</Email>
    <Phone i:nil="true"/> ...

希望無需用一堆屬性來裝飾POCO。

我已經為此設置了一個測試解決方案,實際上,這些方法很受歡迎(必須是我系統中的其他一些問題)。 無論如何 - 我使用這個解決方案的結果是:

<ArrayOfAccount>
<Account>
<id>22</id>
<name>TestAcc</name>
<parentid xmlns:d3p1="http://www.w3.org/2001/XMLSchema-instance" d3p1:nil="true"/>
<status_id xmlns:d3p1="http://www.w3.org/2001/XMLSchema-instance" d3p1:nil="true"/>
<Email>Test@Test.com</Email>
</Account>
</ArrayOfAccount>

擺脫了頂部的架構,但現在搞砸了屬性:(這是一個示例項目的鏈接

這里的答案是從ASP.NET Web API中標記刪除XML中的命名空間

如果您根本不想裝飾您的POCO,請使用第一個選項:

config.Formatters.XmlFormatter.UseXmlSerializer = true;

如果使用選項2,則可能需要添加對System.Runtime.Serialization的引用

假設這樣的帖子接受設置正確:

GET http:// ANY OLD SERVER / api / foos / 5接受:application / xml

調節器

using System;
using System.Collections.Generic;
using System.Linq;
using System.Net;
using System.Net.Http;
using System.Runtime.Serialization;
using System.Web.Http;

namespace CutomXmlFormater.Controllers
{
//[DataContract(Namespace = "")]
public class Foo
{
    //[DataMember]
    public string Bar { get; set; }
}

public class FoosController : ApiController
{
    // GET api/foos/5
    public Foo Get(int id)
    {
        return new Foo() { Bar = "Test" };
    }
}

}

配置(App_Start / WebApiConfig)

//(Use this is you don't go the data contact and model annotation route)
config.Formatters.XmlFormatter.UseXmlSerializer = true;

結果

(帶注釋和數據聯系):

<Foo xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"    xmlns:xsd="http://www.w3.org/2001/XMLSchema"><Bar>Test</Bar></Foo>

或者(使用XML序列化程序路由):

<Foo xmlns:i="http://www.w3.org/2001/XMLSchema-instance"><Bar>Test</Bar></Foo>

也許你可以試試這個:

將默認的XmlFormatter替換為您自己的:

GlobalConfiguration.Configuration.Formatters.Add(new CustomXmlFormatter());
GlobalConfiguration.Configuration.Formatters.Remove(GlobalConfiguration.Configuration.Formatters.XmlFormatter);

並使用XmlSerializer強制它,在序列化期間指定空命名空間,如下所示:

public CustomXmlFormatter()
{
    SupportedMediaTypes.Add(new MediaTypeHeaderValue("application/xml"));
    SupportedMediaTypes.Add(new MediaTypeHeaderValue("text/xml"));
    Encoding = new UTF8Encoding(false, true);
}

protected override bool CanReadType(Type type)
{
    if (type == (Type)null)
        throw new ArgumentNullException("type");

    if (type == typeof(IKeyValueModel))
        return false;

    return true;
}

protected override bool CanWriteType(Type type)
{
    return true;
}

protected override Task OnReadFromStreamAsync(Type type, Stream stream, HttpContentHeaders contentHeaders, FormatterContext formatterContext)
{
    return Task.Factory.StartNew(() =>
            {
                using (var streamReader = new StreamReader(stream, Encoding))
                {
                    var serializer = new XmlSerializer(type);
                    return serializer.Deserialize(streamReader);
                }
            });
}

protected override Task OnWriteToStreamAsync(Type type, object value, Stream stream, HttpContentHeaders contentHeaders, FormatterContext formatterContext, System.Net.TransportContext transportContext)
{
    var serializer = new XmlSerializer(type);
    return Task.Factory.StartNew(() =>
            {
                using (var streamWriter = new StreamWriter(stream, Encoding))
                {
                    XmlSerializerNamespaces ns = new XmlSerializerNamespaces();
                    ns.Add("", "");
                    serializer.Serialize(streamWriter, value, ns);
                }
            });
    }
}

自定義XML序列化程序從這里被盜,因此未經測試。

這應該序列化沒有編寫命名空間的對象。 我不確定它是否可以用於反序列化OOTB,你可能不得不嘗試提供事件並處理UnknownElementUnknownNode事件的XmlSerializer.Deserialize() 重載

自從我搞砸MVC 4以來已經有一段時間了,但我們最終用XmlSerializer替換了默認的格式化程序,如下所示:

protected void Application_Start()
    {
        AreaRegistration.RegisterAllAreas();

        FilterConfig.RegisterGlobalFilters(GlobalFilters.Filters);
        RouteConfig.RegisterRoutes(RouteTable.Routes);
        BundleConfig.RegisterBundles(BundleTable.Bundles);

        GlobalConfiguration.Configuration.Formatters.JsonFormatter.SerializerSettings = GetSerializeSettings();
        GlobalConfiguration.Configuration.Formatters.XmlFormatter.UseXmlSerializer = true;
    }

    internal JsonSerializerSettings GetSerializeSettings()
    {
        return new JsonSerializerSettings
                           {
                               Formatting = Formatting.Indented,
                               ContractResolver = new CamelCasePropertyNamesContractResolver(),
                               Converters = new List<JsonConverter> { new IsoDateTimeConverter() }
                           };
    }

這可能會有所幫助......我知道我們還使用你說你不想做的POCO上的屬性來定制屬性名稱,但那是因為我們希望它們是駝峰式的。

我已經定制了Boris對MVC Webapi 5的回答。使用以下任一http頭使用CustomFormatter渲染結果:

接受:application / xml

接受:text / xml

WebApiConfig.cs:

public static class WebApiConfig
{
    public static void Register(HttpConfiguration config)
    {
        config.Routes.MapHttpRoute(
            name: "DefaultApi",
            routeTemplate: "{controller}/{id}",
            defaults: new { id = RouteParameter.Optional }
        );

        GlobalConfiguration.Configuration.Formatters.Add(new CustomXmlFormatter());
        GlobalConfiguration.Configuration.Formatters.Remove(GlobalConfiguration.Configuration.Formatters.XmlFormatter);
    }
}

CustomXmlFormatter.cs:

using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Net;
using System.Net.Http;
using System.Net.Http.Formatting;
using System.Net.Http.Headers;
using System.Text;
using System.Threading.Tasks;
using System.Web;
using System.Xml.Serialization;

namespace Custom.Formatter
{
    public class CustomXmlFormatter: MediaTypeFormatter
    {
        private  UTF8Encoding encoder;

        public CustomXmlFormatter()
        {
            SupportedMediaTypes.Add(new MediaTypeHeaderValue("application/xml"));
            SupportedMediaTypes.Add(new MediaTypeHeaderValue("text/xml"));
            encoder = new UTF8Encoding(false, true);
        }

        public override bool CanReadType(Type type)
        {
            if (type == (Type)null)
                throw new ArgumentNullException("type");

            //Type filtering
            if (type == typeof(SendEmailMessageResponse) || type == typeof(SendSmsMessageResponse))
                return true;
            else
                return false;
        }

        public override bool CanWriteType(Type type)
        {
            return true;
        }

        public override Task<object> ReadFromStreamAsync(Type type, Stream stream, HttpContent content, IFormatterLogger formatterLogger)
        {
            return Task.Factory.StartNew(() =>
                    {
                        using (var streamReader = new StreamReader(stream, encoder))
                        {
                            var serializer = new XmlSerializer(type);
                            return serializer.Deserialize(streamReader);
                        }
                    });
        }

        public override Task WriteToStreamAsync(Type type, object value, Stream stream,    HttpContent content, TransportContext transportContext)
        {
            var serializer = new XmlSerializer(type);
            return Task.Factory.StartNew(() =>
                    {
                        using (var streamWriter = new StreamWriter(stream, encoder))
                        {
                            XmlSerializerNamespaces ns = new XmlSerializerNamespaces();
                            ns.Add("", "");
                            serializer.Serialize(streamWriter, value, ns);
                        }
                    });
        }
    }
}

暫無
暫無

聲明:本站的技術帖子網頁,遵循CC BY-SA 4.0協議,如果您需要轉載,請注明本站網址或者原文地址。任何問題請咨詢:yoyou2525@163.com.

 
粵ICP備18138465號  © 2020-2024 STACKOOM.COM