在**.Net6**中，ServiceDescriptionImporter无法使用。是否有其他的类可以替代掉这个类。
就算直接引用System.Web.Services.dll编译能过，执行时也会发生异常
System.BadImageFormatException:“Could not load file or assembly 'System.Web.Services, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a'. Reference assemblies should not be loaded for execution. They can only be loaded in the Reflection-only loader context. (0x80131058)”
/// <summary>
/// 动态调用WebService
/// </summary>
/// <param name="url">WebService地址</param>
/// <param name="classname">类名</param>
/// <param name="soapHeader">包的SOAP的头</param>
/// <returns>object</returns>
public WebServiceHelper(string url, string classname = "", SoapHeader soapHeader = null)
{
string @namespace = "ServiceBase.WebService.DynamicWebLoad";
if (classname == null || classname == "")
{
classname = GetClassName(url);
}
//获取服务描述语言(WSDL)
HttpClient wc = new HttpClient();
Stream stream = wc.GetStreamAsync(url + "?WSDL").Result;
ServiceDescription sd = ServiceDescription.Read(stream);
ServiceDescriptionImporter sdi = new ServiceDescriptionImporter();
sdi.AddServiceDescription(sd, "", "");
CodeNamespace cn = new CodeNamespace(@namespace);
//生成客户端代理类代码
CodeCompileUnit ccu = new CodeCompileUnit();
ccu.Namespaces.Add(cn);
sdi.Import(cn, ccu);
CSharpCodeProvider csc = new CSharpCodeProvider();
//ICodeCompiler icc = csc;// csc.CreateCompiler();
//设定编译器的参数
CompilerParameters cplist = new CompilerParameters();
cplist.GenerateExecutable = false;
cplist.GenerateInMemory = true;
cplist.ReferencedAssemblies.Add("System.dll");
cplist.ReferencedAssemblies.Add("System.XML.dll");
cplist.ReferencedAssemblies.Add("System.Web.Services.dll");
cplist.ReferencedAssemblies.Add("System.Data.dll");
//编译代理类
CompilerResults cr = csc.CompileAssemblyFromDom(cplist, ccu);
if (true == cr.Errors.HasErrors)
{
System.Text.StringBuilder sb = new StringBuilder();
foreach (CompilerError ce in cr.Errors)
{
sb.Append(ce.ToString());
sb.Append(System.Environment.NewLine);
}
throw new Exception(sb.ToString());
}
//生成代理实例,并调用方法
System.Reflection.Assembly assembly = cr.CompiledAssembly;
Type t = assembly.GetType(@namespace + "." + classname, true, true);
object obj = Activator.CreateInstance(t);
#region 设置SoapHeader
FieldInfo client = null;
object clientkey = null;
if (soapHeader != null)
{
client = t.GetField(soapHeader.ClassName + "Value");
//获取客户端验证对象 soap类
Type typeClient = assembly.GetType(@namespace + "." + soapHeader.ClassName);
//为验证对象赋值 soap实例
clientkey = Activator.CreateInstance(typeClient);
//遍历属性
foreach (KeyValuePair<string, object> property in soapHeader.Properties)
{
typeClient.GetField(property.Key).SetValue(clientkey, property.Value);
// typeClient.GetProperty(property.Key).SetValue(clientkey, property.Value, null);
}
}
#endregion
if (soapHeader != null)
{
//设置Soap头
client.SetValue(obj, clientkey);
//pro.SetValue(obj, soapHeader, null);
}
WebObj = obj;
//return obj;
//System.Reflection.MethodInfo mi = t.GetMethod(methodname);
//return mi.Invoke(obj, args);
}
