ORM EF 动态创建类

public class CCBWebSeviceHelper
{

public static int rowCount = 0;
/// < summary>
/// 动态调用web服务,当有实体类的时候 (只用于一个)
/// < /summary>
/// < param name="url">WSDL服务地址< /param>
/// < param name="classname">类名< /param>
/// < param name="classname">实体类类名(当有多个实体类时更改方法，进行循环获取实体类再赋值给调用的方法参数object[])< /param>
/// < param name="methodname">方法名< /param>
/// < param name="args">参数,请根据服务端参数字段顺序对传入参数数组赋值< /param>
/// < returns>< /returns>
public static object InvokeWebService(string url, string classname, string entityname, string methodname, object[] args)
{
string @namespace = "EnterpriseServerBase.WebService.DynamicWebCalling";

if ((classname == null) || (classname == ""))
{
classname = GetWsClassName(url);
}
try
{ //获取WSDL
WebClient wc = new WebClient();
Stream stream = wc.OpenRead(url + "?WSDL");
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 icc = new CSharpCodeProvider();
//设定编译参数
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 = icc.CompileAssemblyFromDom(cplist, ccu);
if (true == cr.Errors.HasErrors)
{
System.Text.StringBuilder sb = new System.Text.StringBuilder();
foreach (System.CodeDom.Compiler.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;

//获取实体类
Type entitType = assembly.GetType(@namespace + "." + entityname, true, true);
object entitObj = Activator.CreateInstance(entitType);

System.Reflection.FieldInfo[] fields = entitType.GetFields();

for (int i = 0; i < args.Count(); i++)
{
fields[i].SetValue(entitObj, args[i]);
}

//传入实体类参数
object[] methodArgs = { entitObj };
Type t = assembly.GetType(@namespace + "." + classname, true, true);

object obj = Activator.CreateInstance(t);
System.Reflection.MethodInfo mi = t.GetMethod(methodname);

return mi.Invoke(obj, methodArgs);
//System.Reflection.PropertyInfo propertyInfo = t.GetProperty(propertyname);
//return propertyInfo.GetValue(obj, null);
}
catch (Exception ex)
{
rowCount++;
object o;
if (rowCount == 3)
{
throw new Exception(ex.InnerException.Message, new Exception(ex.InnerException.StackTrace));
}
else
{
o = InvokeWebService(url, classname, entityname, methodname, args);
}
return o;
}
}
/// < summary>
/// 动态调用web服务,普通方法传入
/// < /summary>
/// < param name="url">WSDL服务地址< /param>
/// < param name="classname">类名< /param>
/// < param name="methodname">方法名< /param>
/// < param name="args">参数,请根据服务端参数顺序对传入参数数组赋值< /param>
/// < returns>< /returns>
public static object InvokeWebService(string url, string classname, string methodname, object[] args)
{
string @namespace = "EnterpriseServerBase.WebService.DynamicWebCalling";

if ((classname == null) || (classname == ""))
{
classname = GetWsClassName(url);
}
try
{ //获取WSDL
WebClient wc = new WebClient();
Stream stream = wc.OpenRead(url + "?WSDL");
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 icc = new CSharpCodeProvider();
//设定编译参数
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 = icc.CompileAssemblyFromDom(cplist, ccu);
if (true == cr.Errors.HasErrors)
{
System.Text.StringBuilder sb = new System.Text.StringBuilder();
foreach (System.CodeDom.Compiler.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);
System.Reflection.MethodInfo mi = t.GetMethod(methodname);

return mi.Invoke(obj, args);
//System.Reflection.PropertyInfo propertyInfo = t.GetProperty(propertyname);
//return propertyInfo.GetValue(obj, null);
}
catch (Exception ex)
{
throw new Exception(ex.InnerException.Message, new Exception(ex.InnerException.StackTrace));
}
}

private static string GetWsClassName(string wsUrl)
{
string[] parts = wsUrl.Split('/');
string[] pps = parts[parts.Length - 1].Split('.');
return pps[0];
}
}