1-添加服务引用；

　　（1）工程 - Service References - 添加服务引用；

　　（2）在“添加服务引用”中输入Webservice网站发布地址，并敲回车或点击“转到”；

　　（3）调用代码编写

　　　　 实现方式：ServiceReference1.Service1SoapClient ser1 = new ServiceReference1.Service1SoapClient("Service1SoapClient");

using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Linq; using System.Text; using System.Threading.Tasks; using System.Windows.Forms; using WebServiceTestApp.ServiceReference1;//添加引用 namespace WebServiceTestApp { public partial class Form1 : Form { ServiceReference1.Service1SoapClient myWebService = null;//设置变量 public Form1() { InitializeComponent(); } private void Form1_Load(object sender, EventArgs e) { myWebService = new ServiceReference1.Service1SoapClient("Service1Soap");//实例化变量 } private void btnUpLoadCycleTime_Click(object sender, EventArgs e) { //test string SerialNumber = "160719070002873"; string StationName = "3120"; string MachineName = @":8001/Service.asmx?"; string Employee = "user"; string Password = "123"; float CycleTime = 0; bool Result = false; DataTable ChildSNList = null; string Message = String.Empty; //调用Webservice方法如下 ServiceReference1.Service1SoapClient ser1 = new ServiceReference1.Service1SoapClient("Service1SoapClient"); myWebService.UpLoadCycleTime(SerialNumber, StationName, MachineName, Employee, Password, CycleTime, out Message); } } }

2-添加Web引用

　　（1）工程添加Webservice方法如下　　

　　（2）C#调用Webservice代码实现　　

private void btnStationManage_Click(object sender, EventArgs e) { //test WebReference.Service1 webservice = new WebReference.Service1(); //测试接口过站Json如下： string strJson = "[{\"serialnumber\":\"999919250000001\"}]"; DataTable Output_table = null; string result = String.Empty; Output_table = webservice.Station_Manage(strJson, out result); //测试前进站检查Json如下： string strJson2 = "[{\"serialnumber\":\"999919250000001\"}]"; DataTable Output_table2 = null; string result2 = String.Empty; Output_table2 = webservice.Station_Manage(strJson2, out result2); }

3-System.Net.WebRequest

　　实现方式：System.Net.WebRequest webObj = System.Net.WebRequest.Create("http://xx.xx.xx.xxx:xxxx/InterfaceService.asmx/DownLoadSO?sono=" + tbox_so.Text.Trim() + "");

protected void btn_SoSubmit_Click(object sender, EventArgs e) { string strResult = ""; try { if (string.IsNullOrEmpty(tbox_so.Text.Trim())) { strResult = "{\"Result\":\"FAIL\",\"Data\":\"FAIL,请输入销售单！\"}"; return; } System.Net.WebRequest webObj = System.Net.WebRequest.Create(":xxxx/InterfaceService.asmx/DownLoadSO?sono="
　　　　　　　　　　+ tbox_so.Text.Trim() + ""); StreamReader streamOjb = new StreamReader(webObj.GetResponse().GetResponseStream(), System.Text.Encoding.Default); strResult = streamOjb.ReadLine(); streamOjb.Close(); } catch (Exception ex) { strResult = "{\"Result\":\"FAIL\",\"Data\":\"FAIL," + ex.Message + "\"}"; } finally { if (strResult.Contains("{\"Result\":\"FAIL\"")) { lbl_msg_so.ForeColor = System.Drawing.Color.Red; } else { lbl_msg_so.ForeColor = System.Drawing.Color.Green; } strResult = strResult.Substring(strResult.IndexOf("Data") + 7); lbl_msg_so.Font.Size = FontUnit.Larger; lbl_msg_so.Text = strResult.Substring(0, strResult.Length - 2); } }

4-待续

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原文地址：https://www.cnblogs.com/turnip/p/11764126.html