C#下的webservcie 实现代码和 在vc和python下的调用实现

C#下的webservcie 实现代码,很简单一看就清楚了是完成什么样的功能了

using System;
using System.Collections;
using System.ComponentModel;
using System.Data;
using System.Diagnostics;
using System.Web;
using System.Web.Services;

namespace WebHelloZ5
{
 /// <summary>
 /// Service1 的摘要说明。
 /// </summary>
 public class Service1 : System.Web.Services.WebService
 {
  public Service1()
  {
   //CODEGEN：该调用是 ASP.NET Web 服务设计器所必需的
   InitializeComponent();
  }

  #region Component Designer generated code
 
  //Web 服务设计器所必需的
  private IContainer components = null;
   
  /// <summary>
  /// 设计器支持所需的方法 - 不要使用代码编辑器修改
  /// 此方法的内容。
  /// </summary>
  private void InitializeComponent()
  {
  }

  /// <summary>
  /// 清理所有正在使用的资源。
  /// </summary>
  protected override void Dispose( bool disposing )
  {
   if(disposing && components != null)
   {
    components.Dispose();
   }
   base.Dispose(disposing); 
  }
 
  #endregion

  // WEB 服务示例
  // HelloWorld() 示例服务返回字符串 Hello World
  // 若要生成，请取消注释下列行，然后保存并生成项目
  // 若要测试此 Web 服务，请按 F5 键

  //[WebMethod]
  //public string HelloWorld1()
  //{
  // return "Hello World";
  //}

  [WebMethod]
  public string HelloWorld(int nArg, string strArg)
  {
   return strArg+ nArg.ToString();
  }

 }
}

下面就是调用webservice时,网络上大家发送的数据包了

Client请求数据:

POST /WebHelloZ5/Service1.asmx HTTP/1.1
Host: localhost
Content-Type: text/xml
Content-Length: length
SOAPAction: "http://tempuri.org/HelloWorld"

<?xml version="1.0" encoding="utf-8"?>
<soap:Envelope xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/">
  <soap:Body>
    <HelloWorld xmlns="http://tempuri.org/">
      <nArg>int</nArg>
      <strArg>string</strArg>
    </HelloWorld>
  </soap:Body>
</soap:Envelope>

Server回应数据:

HTTP/1.1 200 OK
Content-Type: text/xml; charset=utf-8
Content-Length: length

<?xml version="1.0" encoding="utf-8"?>
<soap:Envelope xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/">
  <soap:Body>
    <HelloWorldResponse xmlns="http://tempuri.org/">
      <HelloWorldResult>string</HelloWorldResult>
    </HelloWorldResponse>
  </soap:Body>
</soap:Envelope>

VC7下的自动生成的代理类,如下所示:

template <typename TClient>
inline HRESULT CService1T<TClient>::HelloWorld(
  int nArg,
  BSTR strArg,
  BSTR* HelloWorldResult
 )
{
 HRESULT __atlsoap_hr = InitializeSOAP(NULL);
 if (FAILED(__atlsoap_hr))
 {
  SetClientError(SOAPCLIENT_INITIALIZE_ERROR);
  return __atlsoap_hr;
 }
 
 CleanupClient();

 CComPtr<IStream> __atlsoap_spReadStream;
 __CService1_HelloWorld_struct __params;
 memset(&__params, 0x00, sizeof(__params));
 __params.nArg = nArg;
 __params.strArg = strArg;

 __atlsoap_hr = SetClientStruct(&__params, 0);
 if (FAILED(__atlsoap_hr))
 {
  SetClientError(SOAPCLIENT_OUTOFMEMORY);
  goto __skip_cleanup;
 }
 
 __atlsoap_hr = GenerateResponse(GetWriteStream());
 if (FAILED(__atlsoap_hr))
 {
  SetClientError(SOAPCLIENT_GENERATE_ERROR);
  goto __skip_cleanup;
 }
 
 __atlsoap_hr = SendRequest(_T("SOAPAction: \"http://tempuri.org/HelloWorld\"\r\n"));
 if (FAILED(__atlsoap_hr))
 {
  goto __skip_cleanup;
 }
 __atlsoap_hr = GetReadStream(&__atlsoap_spReadStream);
 if (FAILED(__atlsoap_hr))
 {
  SetClientError(SOAPCLIENT_READ_ERROR);
  goto __skip_cleanup;
 }
 
 // cleanup any in/out-params and out-headers from previous calls
 Cleanup();
 __atlsoap_hr = BeginParse(__atlsoap_spReadStream);
 if (FAILED(__atlsoap_hr))
 {
  SetClientError(SOAPCLIENT_PARSE_ERROR);
  goto __cleanup;
 }

 *HelloWorldResult = __params.HelloWorldResult;
 goto __skip_cleanup;
 
__cleanup:
 Cleanup();
__skip_cleanup:
 ResetClientState(true);
 memset(&__params, 0x00, sizeof(__params));
 return __atlsoap_hr;
}

流程为:

1 初始化参数列表( SetClientStruct(&__params, 0);)
                 |
                 V

2.生成发送数据请求(GenerateResponse(GetWriteStream());SendRequest(_T("SOAPAction: \"http://tempuri.org/HelloWorld\"\r\n"));)
                 |
                 V
3.接收和解析回应数据(BeginParse(__atlsoap_spReadStream);)
                 |
                 V
4.清理工作

Python代码:

#author:zfive5(zhaozidong)
#email: zfive5@yahoo.com.cn

import httplib
import xml.parsers.expat
import urlparse

class ZFive5Web:
 
  def __init__(self, url,xmlns):
    self.url=url
    self.xmlns=xmlns
    self.ret=""
    self.data=""   
   
  def gen_request(self,strfunc,strxmlns,dictarg): 
    ret="<soap:Envelope xmlns:soap=\"http://schemas.xmlsoap.org/soap/envelope/\" xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\" xmlns:xsd=\"http://www.w3.org/2001/XMLSchema\" xmlns:soapenc=\"http://schemas.xmlsoap.org/soap/encoding/\">"
    ret+="<soap:Body>"
    ret+="<%s xmlns=\"%s/\">"%(strfunc,strxmlns)
    for (k,v) in dictarg.items():
      if k is int: 
        ret+="<%s>%s</%s>"%(k,str(v),k)
      else:
        ret+="<%s>%s</%s>"%(k,v,k)
    ret+="</%s>"%(strfunc)
    ret+="</soap:Body>"
    ret+="</soap:Envelope>"
    return ret
   
  def hello_world(self,argl):
    func="HelloWorld"
    addr=urlparse.urlparse(self.url)
    argd={}
    argd["nArg"]=argl[0]
    argd["strArg"]=argl[1]
       
    try:
      header={}
      header['Host']='localhost'
      header['Content-Type']='text/xml'
      header['SOAPAction']='\"%s/%s\"'%(self.xmlns,func)
      conn=httplib.HTTPConnection(addr[1]) 
      print self.gen_request(func,self.xmlns,argd)
      conn.request('POST','/WebHelloZ5/Service1.asmx',self.gen_request(func,self.xmlns,argd),header)
      resp=conn.getresponse()
      dataxml=resp.read()
      def start_element(name, attrs):
        pass
         
      def end_element(name):
        if name=='HelloWorldResult':
          self.ret=self.data
        #elif name=='OurPutArg':
        #  argl[0]=self.temp
       
      def char_data(data):
        self.data=data
             
      pxml=xml.parsers.expat.ParserCreate()
      pxml.StartElementHandler = start_element
      pxml.EndElementHandler = end_element
      pxml.CharacterDataHandler = char_data
      pxml.Parse(dataxml, 1)
    except:
      return None
    return  self.ret
   
def test():
  A=ZFive5Web("http://127.0.0.1/WebHelloZ5/Service1.asmx","http://tempuri.org")
  l=[1,'121']
  ret=A.hello_world([1,'121'])
   
if __name__ == '__main__':
   assert test()
  
    流程与上差不多如果实现分析.asmx?WDSL文件就完全可以vs中的添加web引用的功能，这里
剩下的主要是特殊符号的处理和类型转化工作。