|
.Net动态调用WebService
?
using System;
using System.Data;
using System.Configuration;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.IO;
using System.CodeDom;
using System.CodeDom.Compiler;
using System.Net;
using System.Web.Services;
using System.Web.Services.Description;
using Microsoft.CSharp;
/// <summary>
/// WebServiceHelper 的摘要说明
/// </summary>
public class WebServiceHelper
{
public WebServiceHelper()
{
??//
??// TODO: 在此处添加构造函数逻辑
??//
}
????/// <summary>
????/// 动态调用WebService
????/// </summary>
????/// <param name="url">WebService地址</param>
????/// <param name="methodname">方法名(模块名)</param>
????/// <param name="args">参数列表</param>
????/// <returns>object</returns>
????public static object InvokeWebService(string url,string methodname,object[] args)
????{
????????return InvokeWebService(url,null,methodname,args);
????}
????/// <summary>
????/// 动态调用WebService
????/// </summary>
????/// <param name="url">WebService地址</param>
????/// <param name="classname">类名</param>
????/// <param name="methodname">方法名(模块名)</param>
????/// <param name="args">参数列表</param>
????/// <returns>object</returns>
????public static object InvokeWebService(string url,string classname,object[] args)
????{
????????string @namespace = "ServiceBase.WebService.DynamicWebLoad";
????????if (classname == null || classname == "")
????????{
????????????classname = WebServiceHelper.GetClassName(url);
????????}
????????///动态调用类所执行的过程
????????//1.获取服务描述语言(WSDL)
????????WebClient wc = new WebClient();
????????Stream stream = wc.OpenRead(url + "?WSDL");
????????ServiceDescription sd = ServiceDescription.Read(stream);//设置Web服务描述语言
????????ServiceDescriptionImporter sdi = new ServiceDescriptionImporter();//生成客户端代理类
????????sdi.AddServiceDescription(sd,"","");
????????CodeNamespace cn = new CodeNamespace(@namespace);//声明命名空间
????????//2.生成客户端代理类代码
????????CodeCompileUnit ccu = new CodeCompileUnit();//为CodeDOM程序图形提供容器
????????ccu.Namespaces.Add(cn);//获取命名空间集合
????????sdi.Import(cn,ccu);
????????CSharpCodeProvider csc = new CSharpCodeProvider();//提供对 C# 代码生成器和代码编译器的实例的访问
????????ICodeCompiler icc = csc.CreateCompiler();//定义用于调用源代码编译的接口或使用指定编译器的 CodeDOM 树
????????//3.设定编译器的参数
????????CompilerParameters cplist = new CompilerParameters();
????????cplist.GenerateExecutable = false;//设置是否为可执行文件
????????cplist.GenerateInMemory = true;//设置是否在内存中生成输出
????????cplist.ReferencedAssemblies.Add("System.dll");
????????cplist.ReferencedAssemblies.Add("System.XML.dll");
????????cplist.ReferencedAssemblies.Add("System.Web.Services.dll");
????????cplist.ReferencedAssemblies.Add("System.Data.dll");
????????//4.编译代理类
????????CompilerResults cr = icc.CompileAssemblyFromDom(cplist,ccu);//使用指定的编译器设置编译程序集
????????if (true == cr.Errors.HasErrors)
????????{
????????????System.Text.StringBuilder sb = new System.Text.StringBuilder();
????????????foreach (CompilerError ce in cr.Errors)
????????????{
????????????????sb.Append(ce.ToString());
????????????????sb.Append(System.Environment.NewLine);
????????????}
????????????throw new Exception(sb.ToString());
????????}
????????//5.生成代理实例,并调用方法
????????System.Reflection.Assembly assembly = cr.CompiledAssembly;//获取或设置已编译的程序集
????????Type t = assembly.GetType(@namespace + "." + classname,true,true);
????????object obj = Activator.CreateInstance(t);//为 COM 对象提供对方法的版本无关的访问
????????System.Reflection.MethodInfo mi = t.GetMethod(methodname);//通过反射获得方法名
????????return mi.Invoke(obj,args);//使用制定的参数调用当前实例所表示的方法，执行方法
????}
????private static string GetClassName(string url)
????{
????????string[] parts = url.Split('/');
????????string[] pps = parts[parts.Length - 1].Split('.');
????????return pps[0];
????}
}
-------------------------------------------------------------------------------------------
????protected void Button2_Click(object sender,EventArgs e)
????{
????????string WebServiceUrl = "http://222.90.232.40:8899/webservice/WebService.asmx";
????????string WebServiceMethodname = "QueryData";
????????object[] args = new object[2];
????????args[0] = "select ID,JKZJMC from JKZJLB";
????????args[1] = "data source=oradb;uid=movepolicepdasc;pwd=movepolicepdasc";
????????DataSet result = (DataSet)WebServiceHelper.InvokeWebService(WebServiceUrl,WebServiceMethodname,args);
????????GridView1.DataSource = result.Tables[0];
????????GridView1.DataBind();????
????}
--------------------------------------------------------------------------------------------
????[WebMethod]
????public void SendToUrl()
????{
????????HttpContext.Current.Response.Redirect("http://222.90.232.40:8899/webservice/WebService.asmx",false);????}?? |
（编辑：李大同）
【声明】本站内容均来自网络，其相关言论仅代表作者个人观点，不代表本站立场。若无意侵犯到您的权利，请及时与联系站长删除相关内容!
|
