WebService的调用

最新推荐文章于 2021-02-28 11:48:44 发布

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文章标签：

#webservice #import #textbox #vbscript #soap #components

本文介绍如何使用不同编程语言和技术（包括PowerBuilder、Java、ASP JScript/VBScript及C#）来调用WebService。通过具体示例，读者可以了解如何配置环境、解析WSDL文件以及发送请求获取响应。

4.1 使用PowerBuilder调用

　　适用版本8.0 需下载Bulletin Web Services Toolkit 4.1

　　4.2使用java调用

需要下载apache soap。下载地址：http://xml.apache.org/soap/index.html
导入：
import org.apache.soap.*;
import org.apache.soap.rpc.*;

例程：

import java.io.*;
import java.util.*;
import java.net.*;
import org.w3c.dom.*;
import org.apache.soap.util.xml.*;
import org.apache.soap.*;
import org.apache.soap.encoding.*;
import org.apache.soap.encoding.soapenc.*;
import org.apache.soap.rpc.*;
import org.apache.soap.transport.http.SOAPHTTPConnection;

public class testClient {

public static void main(String[] args) throws Exception {

        URL url = new URL ("http://192.168.0.4/yundan/service1.wsdl");
        //改成你的地址
        SOAPMappingRegistry smr = new SOAPMappingRegistry ();
        StringDeserializer sd = new StringDeserializer ();
        smr.mapTypes (Constants.NS_URI_SOAP_ENC, new QName ("", "Result"), null, null, sd);

// 创建传输路径和参数
SOAPHTTPConnection st = new SOAPHTTPConnection();

        // 创建调用
        Call call = new Call ();
        call.setSOAPTransport(st);
        call.setSOAPMappingRegistry (smr);

        call.setTargetObjectURI ("http://tempuri.org/message/");
        call.setMethodName("addNumbers");
        call.setEncodingStyleURI ("http://schemas.xmlsoap.org/soap/encoding/");

        Vector params = new Vector();
        params.addElement(new Parameter("NumberOne", Double.class, "10", null));
        params.addElement(new Parameter("NumberTwo", Double.class, "25", null));
        call.setParams(params);

Response resp = null;

        try {
          resp = call.invoke (url, "http://tempuri.org/action/Hello2.addNumbers");
        }
        catch (SOAPException e) {
        System.err.println("Caught SOAPException (" + e.getFaultCode () + "): " + e.getMessage ());
        return;
        }

        // 检查返回值
        if (resp != null && !resp.generatedFault()) {
        Parameter ret = resp.getReturnValue();
        Object value = ret.getValue();

        System.out.println ("Answer--> " + value);
        }
        else {
            Fault fault = resp.getFault ();
            System.err.println ("Generated fault: ");
            System.out.println (" Fault Code = " + fault.getFaultCode());
            System.out.println (" Fault String = " + fault.getFaultString());
        }
    }
}

4. 3 在asp中使用Jscript调用

需下载msSoapToolkit20.exe
引用：MSSOAP.SoapClient

例程：

<%@ LANGUAGE = JScript %>
<HTML>
<HEAD>
<TITLE>webservice演示</TITLE>
</HEAD>
<BODY>
    <%
         var WSDL_URL = "http://server0/yundan/webservice1.asmx?WSDL"
           var a, b, res
           var soapclient
            a = 12
            b = 13
        soapclient = Server.CreateObject("MSSOAP.SoapClient")
        soapclient.ClientProperty("ServerHTTPRequest") = true
‘在ASP中运行需要设置ServerHTTPRequest选项
soapclient.mssoapinit("http://192.168.0.4/yundan/Service1.WSDL","Service1","Service1Soap","")
        res = soapclient.test(2,3)
%>
<h3>webservice 演示</h3>
<B>Result:</B> <%=res%><P><P>
</BODY>
</HTML>

4. 4在asp中使用vbscript调用

需下载msSoapToolkit20.exe
引用：MSSOAP.SoapClient

例程：

<%@ LANGUAGE = VBScript %>
<HTML>
<HEAD>
<TITLE>webservie演示</TITLE>
</HEAD>
<BODY>
<%
Dim soapclient
Const WSDL_URL = "http://192.168.0.4/yundan/service1.wsdl"
    set soapclient = Server.CreateObject("MSSOAP.SoapClient")
    soapclient.ClientProperty("ServerHTTPRequest") = True
    soapclient.mssoapinit
http://192.168.0.4:8080/yundan/Service1.WSDL","Service1","Service1Soap",""
Dim res
        res = soapclient.test(23, 34)
%>
<h1>webservie演示</h1>
<B>Result:</B> <%=res%><P><P>
</BODY>
</HTML>

4. 5使用C#调用

无需下载任何组件
Visual项目新建 windows应用程序。C#项目

在解决方案资源管理器中添加web引用,输入wsdl文件所在地址。

将web引用改名.
yundan.（service_name）即可引用
*需引用System.web.services*

例程：
using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;
namespace csharp
{
        public class Form1 : System.Windows.Forms.Form
        {
            private System.Windows.Forms.Label label1;
            private System.Windows.Forms.TextBox textBox1;
            private System.ComponentModel.Container components = null;
            public Form1()
            {
                InitializeComponent();
            }
            protected override void Dispose( bool disposing )
            {
                if( disposing )
                {
                    if (components != null)
                    {
                        components.Dispose();
                    }
                }
                base.Dispose( disposing );
            }
            #region Windows Form Designer generated code
            private void InitializeComponent()
            {
                this.label1 = new System.Windows.Forms.Label();
                this.textBox1 = new System.Windows.Forms.TextBox();
                this.SuspendLayout();
                this.label1.AutoSize = true;
                this.label1.Location = new System.Drawing.Point(88, 48);
                this.label1.Name = "label1";
                this.label1.Size = new System.Drawing.Size(91, 14);
                this.label1.TabIndex = 0;
                this.label1.Text = "Webservice演示";
                this.textBox1.Location = new System.Drawing.Point(88, 128);
                this.textBox1.Name = "textBox1";
                this.textBox1.TabIndex = 1;
                this.textBox1.Text = "textBox1";
                this.AutoScaleBaseSize = new System.Drawing.Size(6, 14);
                this.ClientSize = new System.Drawing.Size(292, 273);
                this.Controls.AddRange(new System.Windows.Forms.Control[]
{
                this.textBox1,
                this.label1
});
                this.Name = "Form1";
                this.Text = "C#Webservie演示";
                this.Load += new System.EventHandler(this.Form1_Load);
                this.ResumeLayout(false);
            }
            #endregion
            [STAThread]
            static void Main()
            {
                Application.Run(new Form1());
            }

            private void Form1_Load(object sender, System.EventArgs e)
            {
                int str;
                你的web引用的名字.Service1 cc=new 你的web引用的名字.Service1();
                str=cc.test(123,324);
                textBox1.Text=str.ToString();
            }
        }
}