使用特定属性从C#类生成XML

时间:2013-12-04 09:50:54

标签: c# .net xml xml-serialization

我遇到了关于c#中类的XML序列化的问题:我想要的是下面格式的XML

<?xml version="1.0" encoding="utf-8"?>
<MyClass:Req xsi:schemaLocation="http://www.Test.com/MyClass.xsd"
            xmlns:TestClass="http://www.Test.com/MyClass" 
            xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
            xmlns="http://www.Test.com/MyClass">
  <head>
    <hA>01</hA>
  </head>
  <body>
    <R1>0</R1>
    <R3 />
    <R4 />
  </body>
</MyClass:Req>

所有XMLNS属性都是​​必需的,需要通过代码进行配置。我目前得到的输出是:

<?xml version="1.0" encoding="utf-8"?>
<MyClass_x003A_Req xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
    xmlns:xsd="http://www.w3.org/2001/XMLSchema" 
    xmlns="http://www.Test.com/MyClass">
  <head>
    <hA>01</hA>
  </head>
  <body>
    <R1>0</R1>
    <R3 />
    <R4 />
  </body>
</MyClass_x003A_Req>

正如您所看到的,包含prolog的行不正确,我需要它来显示第一个XML示例中的值。冒号也被转换为 x003A ,我需要这是一个结肠。

以下是我目前正在使用的代码,请记住它只是测试代码,在生产之前要更改字段。

request theReq = new request();
requestHead rHead = new requestHead();
requestBody rBody = new requestBody();

rHead.hA = "01";

rBody.R1 = "0";

theReq.head = rHead;
theReq.body = rBody;

XmlSerializer serializer = new XmlSerializer(typeof(request));
TextWriter textWriter = new StreamWriter(@"Test.xml");
serializer.Serialize(textWriter, theReq);
textWriter.Close();




[XmlRoot(Namespace = "http://www.Test.com/MyClass",
    ElementName = "MyClass:Req",
    DataType = "string",
    IsNullable = true)]
public partial class request
{
    private requestHead headField;

    private requestBody bodyField;

    public request()
    {
        this.bodyField = new requestBody();
        this.headField = new requestHead();
    }

    public requestHead head
    {
        get
        {
            return this.headField;
        }
        set
        {
            this.headField = value;
        }
    }

    public requestBody body
    {
        get
        {
            return this.bodyField;
        }
        set
        {
            this.bodyField = value;
        }
    }
}

public partial class requestHead
{
    private string headAField;

    private string headBField;

    public string hA
    {
        get
        {
            return this.headAField;
        }
        set
        {
            this.headAField = value;
        }
    }

    public string hB
    {
        get
        {
            return this.headBField;
        }
        set
        {
            this.headBField = value;
        }
    }
}

public partial class requestBody
{
    private string R1Field;

    private string R2Field;

    private requestBodyR3 R3Field;

    private requestBodyR4 R4Field;

    public requestBody()
    {
        this.R4Field = new requestBodyR4();
        this.R3Field = new requestBodyR3();
    }

    public string R1
    {
        get
        {
            return this.R1Field;
        }
        set
        {
            this.R1Field = value;
        }
    }

    public string R2
    {
        get
        {
            return this.R2Field;
        }
        set
        {
            this.R2Field = value;
        }
    }

    public requestBodyR3 R3
    {
        get
        {
            return this.R3Field;
        }
        set
        {
            this.R3Field = value;
        }
    }

    public requestBodyR4 R4
    {
        get
        {
            return this.R4Field;
        }
        set
        {
            this.R4Field = value;
        }
    }
}

public partial class requestBodyR3
{

    private string R31Field;

    private string R32Field;

    public string R31
    {
        get
        {
            return this.R31Field;
        }
        set
        {
            this.R31Field = value;
        }
    }

    public string R32
    {
        get
        {
            return this.R32Field;
        }
        set
        {
            this.R32Field = value;
        }
    }
}

public partial class requestBodyR4
{
    private string R41Field;

    public string R41
    {
        get
        {
            return this.R41Field;
        }
        set
        {
            this.R41Field = value;
        }
    }
}

我知道我需要更改XMLRoot行以获得所需的输出,但我不确定我需要在这里更改什么?

此外,如何强制保留COLON,并在写入文件之前不将其修改为 x003A

最后一个问题,因为我没有填充R3&amp; R4有一种方法可以防止它们被写入XML,如果没有填充类似于R2未写入文件的方式,我相信不同之处在于R2是一个字符串而R3&amp; R4是复杂的类型,这使得序列化程序更难以确定它们是否应该被写入?

编辑:

在应用Ralp的建议更改后,确定文件现在如下:

<?xml version="1.0" encoding="utf-8"?>
<MyClass:Req d1p1:schemaLocation="http://www.test.com/myclass.xsd" 
             xmlns:d1p1="http://www.w3.org/2001/XMLSchema-instance" 
             xmlns:MyClass="http://www.test.com/myclass">
  <head>
    <hA>01</hA>
  </head>
  <body>
    <R1>0</R1>
    <R3 />
    <R4 />
  </body>
</MyClass:Req>

如何更改xsi的d1p1?

缺少的一行是xmlns =“http://www.Test.com/MyClass”&gt ;,我如何添加?

编辑 - 2:

几乎感谢Ralp的帮助,这里是更新的文件:

<?xml version="1.0" encoding="utf-8"?>
<MyClass:Req xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
             xsi:schemaLocation="http://www.test.com/myclass.xsd" 
             xmlns:MyClass="http://www.test.com/myclass">
  <head>
    <hA>01</hA>
  </head>
  <body>
    <R1>0</R1>
    <R3 />
    <R4 />
  </body>
</MyClass:Req>

更新了CODE:

request theReq = new request();
requestHead rHead = new requestHead();
requestBody rBody = new requestBody();

rHead.hA = "01";

rBody.R1 = "0";

theReq.head = rHead;
theReq.body = rBody;

XmlSerializerNamespaces ns = new XmlSerializerNamespaces();
ns.Add("xsi", "http://www.w3.org/2001/XMLSchema-instance");
ns.Add("MyClass", "http://www.test.com/myclass");

XmlSerializer serializer = new XmlSerializer(typeof(request));
TextWriter textWriter = new StreamWriter(@"Test.xml");
serializer.Serialize(textWriter, theReq, ns);
textWriter.Close();



[XmlRoot(Namespace = "http://www.test.com/myclass", ElementName = "Req")]
public partial class request
{
    private requestHead headField;

    private requestBody bodyField;

    public request()
    {
        this.bodyField = new requestBody();
        this.headField = new requestHead();
    }

    [XmlAttribute("schemaLocation", Namespace = "http://www.w3.org/2001/XMLSchema-instance")]
    public string xsiSchemaLocation = "http://www.test.com/myclass.xsd";

    [XmlElement("head", Namespace = "")]
    public requestHead head
    {
        get
        {
            return this.headField;
        }
        set
        {
            this.headField = value;
        }
    }

    [XmlElement("body", Namespace = "")]
    public requestBody body
    {
        get
        {
            return this.bodyField;
        }
        set
        {
            this.bodyField = value;
        }
    }
}

public partial class requestHead
{
    private string headAField;

    private string headBField;

    public string hA
    {
        get
        {
            return this.headAField;
        }
        set
        {
            this.headAField = value;
        }
    }

    public string hB
    {
        get
        {
            return this.headBField;
        }
        set
        {
            this.headBField = value;
        }
    }
}

public partial class requestBody
{
    private string R1Field;

    private string R2Field;

    private requestBodyR3 R3Field;

    private requestBodyR4 R4Field;

    public requestBody()
    {
        this.R4Field = new requestBodyR4();
        this.R3Field = new requestBodyR3();
    }

    public string R1
    {
        get
        {
            return this.R1Field;
        }
        set
        {
            this.R1Field = value;
        }
    }

    public bool ShouldSerializeR1() { return !String.IsNullOrEmpty(R1); }

    public string R2
    {
        get
        {
            return this.R2Field;
        }
        set
        {
            this.R2Field = value;
        }
    }

    public bool ShouldSerializeR2() { return !String.IsNullOrEmpty(R2); }

    public requestBodyR3 R3
    {
        get
        {
            return this.R3Field;
        }
        set
        {
            this.R3Field = value;
        }
    }

    public bool ShouldSerializeR3() { return requestBodyR3.ShouldSerializeRequestBodyR3(); }

    public requestBodyR4 R4
    {
        get
        {
            return this.R4Field;
        }
        set
        {
            this.R4Field = value;
        }
    }
}

public partial class requestBodyR3
{

    private string R31Field;

    private string R32Field;

    public static bool ShouldSerializeRequestBodyR3()
    {
        bool blnRetVal = false;

        //Add code to test these values later

        return blnRetVal;
    }

    public string R31
    {
        get
        {
            return this.R31Field;
        }
        set
        {
            this.R31Field = value;
        }
    }

    public string R32
    {
        get
        {
            return this.R32Field;
        }
        set
        {
            this.R32Field = value;
        }
    }
}

public partial class requestBodyR4
{
    private string R41Field;

    public string R41
    {
        get
        {
            return this.R41Field;
        }
        set
        {
            this.R41Field = value;
        }
    }
}

现在唯一的问题是缺少xmlns =“http://www.Test.com/MyClass”&gt;

如果我将以下代码添加到命名空间部分:

ns.Add("", "http://www.test.com/Myclass");

我得到了我需要的输出,但NOTICEi jhad更改其中一个字母的大小写以获取输出,如果大小写与命名空间MyClass相同则不输出。

提前致谢

1 个答案:

答案 0 :(得分:1)

命名空间是MyClass,Elementname是Req。 所以你需要定义命名空间。

XmlSerializerNamespaces ns = new XmlSerializerNamespaces();            
ns.Add("MyClass", "http://www.test.com/myclass");

并调用一个带有XmlSerializerNamespaces实例的Serialize重载。 Request类本身就是一个名为Req的Element。

[XmlRoot(Namespace = "http://www.test.com/myclass", ElementName = "Req")]
public class Request
{
    [XmlElement("R1", Namespace = "")]
    public string R1 { get; set; }
    public bool ShouldSerializeR1()  { return !string.IsNullOrWhiteSpace(R1); }

    [XmlAttribute("schemaLocation", Namespace = "")]
    public string xsiSchemaLocation = "http://www.test.com/myclass.xsd";
}

schemaLocation可以通过声明为Xml属性的属性添加。 如果属性应序列化,则可以使用ShouldSerialize * MyLovelyPropertyName()*语法控制。