我遇到了SOAP序列化的问题,找到答案会很棒。这是一个非常简单的例子:
public void Test()
{
StringBuilder sb = new StringBuilder();
StringWriter writer = new StringWriter(sb);
SoapReflectionImporter importer = new SoapReflectionImporter();
XmlTypeMapping map = importer.ImportTypeMapping(typeof(A));
XmlSerializer serializer = new XmlSerializer(map);
serializer.Serialize(writer, new A());
}
[Serializable]
public class A
{
public A()
{
BB = new B();
}
public int a;
public B BB;
}
[Serializable]
public class B
{
public int A1 { get; set; }
public int A2 { get; set; }
}
如果我运行方法Test(),那么我得到以下异常:System.InvalidOperationException: Token StartElement in state Epilog would result in an invalid XML document.
感谢任何帮助。
答案 0 :(得分:5)
请注意, 如果流的位置未设置为流的开头,则上面的示例将不起作用。像这样:
Stream s = new MemoryStream();
XmlWriter writer = new XmlTextWriter(s, Encoding.UTF8);
SoapReflectionImporter importer = new SoapReflectionImporter();
XmlTypeMapping map = importer.ImportTypeMapping(typeof(A));
XmlSerializer serializer = new XmlSerializer(map);
writer.WriteStartElement("root");
serializer.Serialize(writer, new A());
s.Position = 0;
StreamReader sr = new StreamReader(s);
string data = sr.ReadToEnd();
答案 1 :(得分:3)
使用XmlWriter而不是StringWriter并执行writer.WriteStartElement(“root”);
这将有效:
Stream s = new MemoryStream();
XmlWriter writer = new XmlTextWriter(s, Encoding.UTF8);
SoapReflectionImporter importer = new SoapReflectionImporter();
XmlTypeMapping map = importer.ImportTypeMapping(typeof(A));
XmlSerializer serializer = new XmlSerializer(map);
writer.WriteStartElement("root");
serializer.Serialize(writer, new A());
StreamReader sr = new StreamReader(s);
string data = sr.ReadToEnd();