学习C#中调用COM，后期绑定（以及对WinHttp COM对象的C#封装）
学习C#中调用COM，后期绑定全部代码 开始学习C#了，没打算从语法一点一点的看起！所以上来就直接开始代码了！同时也和Delphi之间的某些操作进行比较比较！于是想到了一个朋友用 Delphi写的通过ip138查询手机号码的例子，他用的是IdHttp来进行提交操作的。我在之前写飞信的控件的时候，用的http是Windows 自己内部的COM库：WinHttp.WinHttpRequest.5.1，这个玩意用起来还是相当方便的，于是就乘着学习，借机来在C#中动态创建这 个COM对象。要知道在Delphi中创建和调用一个COM对象，那是相当方便的。直接一个CreateOleObject就能创建一个COM对象了，然 后COM对象中的方法就能够直接通过这个东西直接调用。那么在C#中是否依然如此简洁？不晓得，是因为我刚接触还是咋地，折磨了半天，实在没摸索到简单的 方法来创建COM对象（当然，那种通过引用添加组件库到C#环境中去的方法不算，因为这个方法有一定的弊端，那便是当用户换了环境，重新来编译本程序的时 候，由于新的环境中可能并没有引用这个库，所以直接编译会出错，于是咱们又要重新添加引用一次本库！），唯一的办法就是后期绑定COM对象（至于是否有简 单方法，我不知道的，因为才学1天）。查阅了相关的一些资料之后得知，首先要通过COM对象名称获得这个对象在系统全局的一个ProgId，然后通过这个 ProgId获得这个对象的类型：
代码
代码
代码
代码
代码
System.Type _ObjType = System.Type.GetTypeFromProgID(ComName);
然后通过这个类型来创建一个对象接口
object ComInstance= System.Activator.CreateInstance(_ObjType);
之后，对该对象方法的调用都要通过type的InvokeMember方法来进行比如：
return ComType.InvokeMember(MethodName,System.Reflection.BindingFlags.InvokeMethod,null,ComInstance,args);
哎！写起来的代码量还真是有点大呢！于是，产生了一个想法，将这个COM对象后期绑定的玩意封装起来做一个公共的，能省多少代码就省多少代码，尽量的减少代码量：
/*
* Created by SharpDevelop.
* User: Administrator
* Date: 2009-12-2
* Time: 23:26
*
* To change this template use Tools | Options | Coding | Edit Standard Headers.
*/
using System;
namespace DxComOperate
{
/// <summary>
/// COM对象的后期绑定调用类库
/// </summary>
public class DxComObject
{
private System.Type _ObjType;
private object ComInstance;
/*public DxComObject()
{
throw new
}*/
public DxComObject(string ComName)
{
//根据COM对象的名称创建COM对象
_ObjType = System.Type.GetTypeFromProgID(ComName);
if(_ObjType==null)
throw new Exception("指定的COM对象名称无效");
ComInstance = System.Activator.CreateInstance(_ObjType);
}
public System.Type ComType
{
get{return _ObjType;}
}
//执行的函数
public object DoMethod(string MethodName,object[] args)
{
return ComType.InvokeMember(MethodName,System.Reflection.BindingFlags.InvokeMethod,null,ComInstance,args);
}
//获得属性与设置属性
public object this[string propName]
{
get
{
return _ObjType.InvokeMember( propName, System.Reflection.BindingFlags.GetProperty, null, ComInstance, null );
}
set
{
_ObjType.InvokeMember( propName, System.Reflection.BindingFlags.SetProperty, null, ComInstance, new object[] {value} );
}
}
}
/// <summary>
/// WinHttp对象库
/// </summary>
public class DxWinHttp
{
private DxComObject HttpObj;
private string _ContentType;
public DxWinHttp()
{
//构建WinHttp对象
HttpObj = new DxComObject("WinHttp.WinHttpRequest.5.1");
}
//设置Content-Type属性
public string ContentType
{
get{return _ContentType;}
set
{
if (_ContentType.CompareTo(value)!=0)
{
_ContentType = value;
object[] args = new object[2];
args[0] = "Content-Type";args[1] = value;
HttpObj.DoMethod("SetRequestHeader",args);
}
}
}
}
}
* Created by SharpDevelop.
* User: Administrator
* Date: 2009-12-2
* Time: 23:26
*
* To change this template use Tools | Options | Coding | Edit Standard Headers.
*/
using System;
namespace DxComOperate
{
/// <summary>
/// COM对象的后期绑定调用类库
/// </summary>
public class DxComObject
{
private System.Type _ObjType;
private object ComInstance;
/*public DxComObject()
{
throw new
}*/
public DxComObject(string ComName)
{
//根据COM对象的名称创建COM对象
_ObjType = System.Type.GetTypeFromProgID(ComName);
if(_ObjType==null)
throw new Exception("指定的COM对象名称无效");
ComInstance = System.Activator.CreateInstance(_ObjType);
}
public System.Type ComType
{
get{return _ObjType;}
}
//执行的函数
public object DoMethod(string MethodName,object[] args)
{
return ComType.InvokeMember(MethodName,System.Reflection.BindingFlags.InvokeMethod,null,ComInstance,args);
}
//获得属性与设置属性
public object this[string propName]
{
get
{
return _ObjType.InvokeMember( propName, System.Reflection.BindingFlags.GetProperty, null, ComInstance, null );
}
set
{
_ObjType.InvokeMember( propName, System.Reflection.BindingFlags.SetProperty, null, ComInstance, new object[] {value} );
}
}
}
/// <summary>
/// WinHttp对象库
/// </summary>
public class DxWinHttp
{
private DxComObject HttpObj;
private string _ContentType;
public DxWinHttp()
{
//构建WinHttp对象
HttpObj = new DxComObject("WinHttp.WinHttpRequest.5.1");
}
//设置Content-Type属性
public string ContentType
{
get{return _ContentType;}
set
{
if (_ContentType.CompareTo(value)!=0)
{
_ContentType = value;
object[] args = new object[2];
args[0] = "Content-Type";args[1] = value;
HttpObj.DoMethod("SetRequestHeader",args);
}
}
}
}
}
代码写的也不复杂，就这么几句，但是我想应该看起来更加明亮化了。
比如，我现在通过这个封装操作库来通过ip138查询手机号码的归属地
void Button1Click(object sender, EventArgs e)
{
if (textBox1.Text.Length == 0)
{
MessageBox.Show("请输入一个手机号");
return;
}
DxComObject WinHttp = new DxComObject("WinHttp.WinHttpRequest.5.1");
string PostData = "http://www.ip138.com:8080/search.asp";
object[] args = new object[3];//指定参数
args[0] = "GET";args[1] = PostData;args[2] = false;
WinHttp.DoMethod("Open",args);//执行Open方法
PostData = "action=mobile&mobile="+this.textBox1.Text;
args = new object[2];
args[0] = "Content-Length";args[1] = PostData.Length;
WinHttp.DoMethod("SetRequestHeader",args);
args = new object[2];
args[0] = "Content-Type";args[1] = "application/x-www-form-urlencoded";
WinHttp.DoMethod("SetRequestHeader",args);
args = new object[2];
args[0] = "User-Agent";args[1] = "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1)";
WinHttp.DoMethod("SetRequestHeader",args);
args = new object[1];
args[0] = PostData;
WinHttp.DoMethod("Send",args);
DxComObject AdoStream = new DxComObject("Adodb.Stream");
AdoStream["Type"] = 1;
AdoStream["Mode"] = 3;
args = new object[]{};
AdoStream.DoMethod("Open",args);
args = new object[1]{WinHttp["ResponseBody"]};
AdoStream.DoMethod("Write",args);
AdoStream["Position"] = 0;
AdoStream["Type"] = 2;
AdoStream["Charset"] = "GB2312";
string Result = AdoStream["ReadText"].ToString();
Info.mobileNo = GetReturnValue(DxValueType.DxPhone,Result);
Info.City = GetReturnValue(DxValueType.DxPhoneCity,Result);
Info.CardType = GetReturnValue(DxValueType.DxCardType,Result);
Info.CityCode = GetReturnValue(DxValueType.DxCityCode,Result);
this.propertyGrid1.Refresh();
}
{
if (textBox1.Text.Length == 0)
{
MessageBox.Show("请输入一个手机号");
return;
}
DxComObject WinHttp = new DxComObject("WinHttp.WinHttpRequest.5.1");
string PostData = "http://www.ip138.com:8080/search.asp";
object[] args = new object[3];//指定参数
args[0] = "GET";args[1] = PostData;args[2] = false;
WinHttp.DoMethod("Open",args);//执行Open方法
PostData = "action=mobile&mobile="+this.textBox1.Text;
args = new object[2];
args[0] = "Content-Length";args[1] = PostData.Length;
WinHttp.DoMethod("SetRequestHeader",args);
args = new object[2];
args[0] = "Content-Type";args[1] = "application/x-www-form-urlencoded";
WinHttp.DoMethod("SetRequestHeader",args);
args = new object[2];
args[0] = "User-Agent";args[1] = "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1)";
WinHttp.DoMethod("SetRequestHeader",args);
args = new object[1];
args[0] = PostData;
WinHttp.DoMethod("Send",args);
DxComObject AdoStream = new DxComObject("Adodb.Stream");
AdoStream["Type"] = 1;
AdoStream["Mode"] = 3;
args = new object[]{};
AdoStream.DoMethod("Open",args);
args = new object[1]{WinHttp["ResponseBody"]};
AdoStream.DoMethod("Write",args);
AdoStream["Position"] = 0;
AdoStream["Type"] = 2;
AdoStream["Charset"] = "GB2312";
string Result = AdoStream["ReadText"].ToString();
Info.mobileNo = GetReturnValue(DxValueType.DxPhone,Result);
Info.City = GetReturnValue(DxValueType.DxPhoneCity,Result);
Info.CardType = GetReturnValue(DxValueType.DxCardType,Result);
Info.CityCode = GetReturnValue(DxValueType.DxCityCode,Result);
this.propertyGrid1.Refresh();
}
//可见现在这个代码就已经很明显很明白了，但是写的代码量还是有些大，如果反复使用的话，就不爽了还是要写比较多的代码，于是开始着手对WinHttp这个COM对象进行封装
/// <summary>
/// WinHttp对象库
/// </summary>
public class DxWinHttp
{
private DxComObject HttpObj;
private string _ContentType;
private int _ContentLength;
private bool _Active;
private System.Collections.ArrayList PostDataList;//提交的数据字段
public DxWinHttp()
{
//构建WinHttp对象
HttpObj = new DxComObject("WinHttp.WinHttpRequest.5.1");
_ContentType = "application/x-www-form-urlencoded";
_ContentLength = 0;
PostDataList = new System.Collections.ArrayList();
}
//提交参数信息的个数
public int PostDataCount
{
get{return PostDataList.Count;}
}
//设置Content-Type属性
public string ContentType
{
get{return _ContentType;}
set
{
if(!_Active) _ContentType = value;
else if(_ContentType.CompareTo(value)!=0)
{
_ContentType = value;
SetRequestHeader("Content-Type",_ContentType);
}
}
}
//对象是否是打开状态
public bool Active
{
get{return _Active;}
}
//设置Send数据的长度
public int ContentLength
{
get{return _ContentLength;}
set
{
if(!_Active) _ContentLength = value;
else if(_ContentLength != value)
{
_ContentLength = value;
HttpObj.DoMethod("SetRequestHeader",new object[2]{"Content-Length",value});
}
}
}
//执行之后返回的结果
public string ResponseBody
{
get
{
if(_Active)
{
DxComObject AdoStream = new DxComObject("Adodb.Stream");
AdoStream["Type"] = 1;
AdoStream["Mode"] = 3;
AdoStream.DoMethod("Open",new object[]{});
AdoStream.DoMethod("Write",new object[1]{HttpObj["ResponseBody"]});
AdoStream["Position"] = 0;
AdoStream["Type"] = 2;
AdoStream["Charset"] = "GB2312";
return AdoStream["ReadText"].ToString();
}
else return "";
}
}
//设定请求头
public string SetRequestHeader(string Header,object Value)
{
object obj;
obj = HttpObj.DoMethod("SetRequestHeader",new object[]{Header,Value});
if(obj != null) return obj.ToString();
else return "True";
}
//打开URL执行OpenMethod方法,Async指定是否采用异步方式调用,异步方式不会阻塞
public string Open(string OpenMethod,string URL,bool Async)
{
object obj;
obj = HttpObj.DoMethod("Open",new object[]{OpenMethod,URL,Async});
if (obj != null)
{
_Active = false;
return obj.ToString();
}
else
{
SetRequestHeader("Content-Type",_ContentType);
SetRequestHeader("User-Agent","Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1)");
if (_ContentLength != 0) SetRequestHeader("Content-Length",_ContentLength);
_Active = true;
return "True";
}
}
//发送数据
public string Send(string body)
{
if(!_Active) return "False";
object obj;
obj = HttpObj.DoMethod("Send",new object[1]{body});
if(obj != null) return obj.ToString();
else return "True";
}
public void ClearPostData()
{
this.PostDataList.Clear();
}
//增加提交数据信息
public void AddPostField(string FieldName,object Value)
{
this.PostDataList.Add(FieldName+"="+Value.ToString());
}
//通过参数指定提交
public string DxPost()
{
if(!_Active)
{
return "False";
}
string st="";
for(int i=0;i<this.PostDataList.Count;i++)
{
if(st != "") st = st + "&"+ PostDataList[i].ToString();
else st = PostDataList[i].ToString();
}
this.ContentLength = st.Length;
return Send(st);
}
//设置等待超时等
public string SetTimeouts(long ResolveTimeout,long ConnectTimeout,long SendTimeout,long ReceiveTimeout)
{
object obj;
obj = HttpObj.DoMethod("SetTimeouts",new object[4]{ResolveTimeout,ConnectTimeout,SendTimeout,ReceiveTimeout});
if(obj != null) return obj.ToString();
else return "True";
}
//等待数据提交完成
public string WaitForResponse(object Timeout,out bool Succeeded)
{
if(!_Active) {Succeeded = false;return "";}
object obj;
bool succ;
succ = false;
System.Reflection.ParameterModifier[] ParamesM;
ParamesM = new System.Reflection.ParameterModifier[1];
ParamesM[0] = new System.Reflection.ParameterModifier (2); // 初始化为接口参数的个数
ParamesM[0][1] = true; // 设置第二个参数为返回参数
//ParamesM[1] = true;
object[] ParamArray = new object[2]{Timeout,succ};
obj = HttpObj.DoMethod("WaitForResponse",ParamArray,ParamesM);
System.Windows.Forms.MessageBox.Show(ParamArray[1].ToString());
Succeeded=bool.Parse(ParamArray[1].ToString());
//Succeeded = bool.Parse(ParamArray[1].ToString);
if(obj != null) {return obj.ToString();}
else return "True";
}
public string GetResponseHeader(string Header,ref string Value)
{
if(!_Active) {Value="";return "";}
object obj;
/*string str;
str = "";
System.Reflection.ParameterModifier[] Parames;
Parames = new System.Reflection.ParameterModifier[1];
Parames[0] = new System.Reflection.ParameterModifier (2); // 初始化为接口参数的个数
Parames[0][1] = true; */// 设置第二个参数为返回参数
obj = HttpObj.DoMethod("GetResponseHeader",new object[2]{Header,Value});
//Value = str;
if(obj != null) {return obj.ToString();}
else return "True";
}
}
/// WinHttp对象库
/// </summary>
public class DxWinHttp
{
private DxComObject HttpObj;
private string _ContentType;
private int _ContentLength;
private bool _Active;
private System.Collections.ArrayList PostDataList;//提交的数据字段
public DxWinHttp()
{
//构建WinHttp对象
HttpObj = new DxComObject("WinHttp.WinHttpRequest.5.1");
_ContentType = "application/x-www-form-urlencoded";
_ContentLength = 0;
PostDataList = new System.Collections.ArrayList();
}
//提交参数信息的个数
public int PostDataCount
{
get{return PostDataList.Count;}
}
//设置Content-Type属性
public string ContentType
{
get{return _ContentType;}
set
{
if(!_Active) _ContentType = value;
else if(_ContentType.CompareTo(value)!=0)
{
_ContentType = value;
SetRequestHeader("Content-Type",_ContentType);
}
}
}
//对象是否是打开状态
public bool Active
{
get{return _Active;}
}
//设置Send数据的长度
public int ContentLength
{
get{return _ContentLength;}
set
{
if(!_Active) _ContentLength = value;
else if(_ContentLength != value)
{
_ContentLength = value;
HttpObj.DoMethod("SetRequestHeader",new object[2]{"Content-Length",value});
}
}
}
//执行之后返回的结果
public string ResponseBody
{
get
{
if(_Active)
{
DxComObject AdoStream = new DxComObject("Adodb.Stream");
AdoStream["Type"] = 1;
AdoStream["Mode"] = 3;
AdoStream.DoMethod("Open",new object[]{});
AdoStream.DoMethod("Write",new object[1]{HttpObj["ResponseBody"]});
AdoStream["Position"] = 0;
AdoStream["Type"] = 2;
AdoStream["Charset"] = "GB2312";
return AdoStream["ReadText"].ToString();
}
else return "";
}
}
//设定请求头
public string SetRequestHeader(string Header,object Value)
{
object obj;
obj = HttpObj.DoMethod("SetRequestHeader",new object[]{Header,Value});
if(obj != null) return obj.ToString();
else return "True";
}
//打开URL执行OpenMethod方法,Async指定是否采用异步方式调用,异步方式不会阻塞
public string Open(string OpenMethod,string URL,bool Async)
{
object obj;
obj = HttpObj.DoMethod("Open",new object[]{OpenMethod,URL,Async});
if (obj != null)
{
_Active = false;
return obj.ToString();
}
else
{
SetRequestHeader("Content-Type",_ContentType);
SetRequestHeader("User-Agent","Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1)");
if (_ContentLength != 0) SetRequestHeader("Content-Length",_ContentLength);
_Active = true;
return "True";
}
}
//发送数据
public string Send(string body)
{
if(!_Active) return "False";
object obj;
obj = HttpObj.DoMethod("Send",new object[1]{body});
if(obj != null) return obj.ToString();
else return "True";
}
public void ClearPostData()
{
this.PostDataList.Clear();
}
//增加提交数据信息
public void AddPostField(string FieldName,object Value)
{
this.PostDataList.Add(FieldName+"="+Value.ToString());
}
//通过参数指定提交
public string DxPost()
{
if(!_Active)
{
return "False";
}
string st="";
for(int i=0;i<this.PostDataList.Count;i++)
{
if(st != "") st = st + "&"+ PostDataList[i].ToString();
else st = PostDataList[i].ToString();
}
this.ContentLength = st.Length;
return Send(st);
}
//设置等待超时等
public string SetTimeouts(long ResolveTimeout,long ConnectTimeout,long SendTimeout,long ReceiveTimeout)
{
object obj;
obj = HttpObj.DoMethod("SetTimeouts",new object[4]{ResolveTimeout,ConnectTimeout,SendTimeout,ReceiveTimeout});
if(obj != null) return obj.ToString();
else return "True";
}
//等待数据提交完成
public string WaitForResponse(object Timeout,out bool Succeeded)
{
if(!_Active) {Succeeded = false;return "";}
object obj;
bool succ;
succ = false;
System.Reflection.ParameterModifier[] ParamesM;
ParamesM = new System.Reflection.ParameterModifier[1];
ParamesM[0] = new System.Reflection.ParameterModifier (2); // 初始化为接口参数的个数
ParamesM[0][1] = true; // 设置第二个参数为返回参数
//ParamesM[1] = true;
object[] ParamArray = new object[2]{Timeout,succ};
obj = HttpObj.DoMethod("WaitForResponse",ParamArray,ParamesM);
System.Windows.Forms.MessageBox.Show(ParamArray[1].ToString());
Succeeded=bool.Parse(ParamArray[1].ToString());
//Succeeded = bool.Parse(ParamArray[1].ToString);
if(obj != null) {return obj.ToString();}
else return "True";
}
public string GetResponseHeader(string Header,ref string Value)
{
if(!_Active) {Value="";return "";}
object obj;
/*string str;
str = "";
System.Reflection.ParameterModifier[] Parames;
Parames = new System.Reflection.ParameterModifier[1];
Parames[0] = new System.Reflection.ParameterModifier (2); // 初始化为接口参数的个数
Parames[0][1] = true; */// 设置第二个参数为返回参数
obj = HttpObj.DoMethod("GetResponseHeader",new object[2]{Header,Value});
//Value = str;
if(obj != null) {return obj.ToString();}
else return "True";
}
}
封装完成，此时再看，用本库来查询手机归属地的代码：
void Button2Click(object sender, EventArgs e)
{
if (textBox1.Text.Length == 0)
{
MessageBox.Show("请输入一个手机号");
return;
}
WinHttp.Open("GET","http://www.ip138.com:8080/search.asp",false);
WinHttp.ClearPostData();
WinHttp.AddPostField("action","mobile");
WinHttp.AddPostField("mobile",this.textBox1.Text);
WinHttp.DxPost();
string Result = WinHttp.ResponseBody;
Info.mobileNo = GetReturnValue(DxValueType.DxPhone,Result);
Info.City = GetReturnValue(DxValueType.DxPhoneCity,Result);
Info.CardType = GetReturnValue(DxValueType.DxCardType,Result);
Info.CityCode = GetReturnValue(DxValueType.DxCityCode,Result);
this.propertyGrid1.Refresh();
}
{
if (textBox1.Text.Length == 0)
{
MessageBox.Show("请输入一个手机号");
return;
}
WinHttp.Open("GET","http://www.ip138.com:8080/search.asp",false);
WinHttp.ClearPostData();
WinHttp.AddPostField("action","mobile");
WinHttp.AddPostField("mobile",this.textBox1.Text);
WinHttp.DxPost();
string Result = WinHttp.ResponseBody;
Info.mobileNo = GetReturnValue(DxValueType.DxPhone,Result);
Info.City = GetReturnValue(DxValueType.DxPhoneCity,Result);
Info.CardType = GetReturnValue(DxValueType.DxCardType,Result);
Info.CityCode = GetReturnValue(DxValueType.DxCityCode,Result);
this.propertyGrid1.Refresh();
}
现在的代码已经减少到了很多了！
下面给出完整的COM封装类库代码：
/*
* Created by SharpDevelop.
* 作者: 不得闲
* Date: 2009-12-2
* Time: 23:26
*
* To change this template use Tools | Options | Coding | Edit Standard Headers.
*/
using System;
namespace DxComOperate
{
/// <summary>
/// COM对象的后期绑定调用类库
/// </summary>
public class DxComObject
{
private System.Type _ObjType;
private object ComInstance;
/*public DxComObject()
{
throw new
}*/
public DxComObject(string ComName)
{
//根据COM对象的名称创建COM对象
_ObjType = System.Type.GetTypeFromProgID(ComName);
if(_ObjType==null)
throw new Exception("指定的COM对象名称无效");
ComInstance = System.Activator.CreateInstance(_ObjType);
}
public System.Type ComType
{
get{return _ObjType;}
}
//执行的函数
public object DoMethod(string MethodName,object[] args)
{
return ComType.InvokeMember(MethodName,System.Reflection.BindingFlags.InvokeMethod,null,ComInstance,args);
}
public object DoMethod(string MethodName,object[] args,System.Reflection.ParameterModifier[] ParamMods)
{
return ComType.InvokeMember(MethodName,System.Reflection.BindingFlags.InvokeMethod,null,ComInstance,args,ParamMods,null,null);
}
//获得属性与设置属性
public object this[string propName]
{
get
{
return _ObjType.InvokeMember( propName, System.Reflection.BindingFlags.GetProperty, null, ComInstance, null );
}
set
{
_ObjType.InvokeMember( propName, System.Reflection.BindingFlags.SetProperty, null, ComInstance, new object[] {value} );
}
}
}
/// <summary>
/// WinHttp对象库
/// </summary>
public class DxWinHttp
{
private DxComObject HttpObj;
private string _ContentType;
private int _ContentLength;
private bool _Active;
private System.Collections.ArrayList PostDataList;//提交的数据字段
public DxWinHttp()
{
//构建WinHttp对象
HttpObj = new DxComObject("WinHttp.WinHttpRequest.5.1");
_ContentType = "application/x-www-form-urlencoded";
_ContentLength = 0;
PostDataList = new System.Collections.ArrayList();
}
//提交参数信息的个数
public int PostDataCount
{
get{return PostDataList.Count;}
}
//设置Content-Type属性
public string ContentType
{
get{return _ContentType;}
set
{
if(!_Active) _ContentType = value;
else if(_ContentType.CompareTo(value)!=0)
{
_ContentType = value;
SetRequestHeader("Content-Type",_ContentType);
}
}
}
//对象是否是打开状态
public bool Active
{
get{return _Active;}
}
//设置Send数据的长度
public int ContentLength
{
get{return _ContentLength;}
set
{
if(!_Active) _ContentLength = value;
else if(_ContentLength != value)
{
_ContentLength = value;
HttpObj.DoMethod("SetRequestHeader",new object[2]{"Content-Length",value});
}
}
}
//执行之后返回的结果
public string ResponseBody
{
get
{
if(_Active)
{
DxComObject AdoStream = new DxComObject("Adodb.Stream");
AdoStream["Type"] = 1;
AdoStream["Mode"] = 3;
AdoStream.DoMethod("Open",new object[]{});
AdoStream.DoMethod("Write",new object[1]{HttpObj["ResponseBody"]});
AdoStream["Position"] = 0;
AdoStream["Type"] = 2;
AdoStream["Charset"] = "GB2312";
return AdoStream["ReadText"].ToString();
}
else return "";
}
}
//设定请求头
public string SetRequestHeader(string Header,object Value)
{
object obj;
obj = HttpObj.DoMethod("SetRequestHeader",new object[]{Header,Value});
if(obj != null) return obj.ToString();
else return "True";
}
//打开URL执行OpenMethod方法,Async指定是否采用异步方式调用,异步方式不会阻塞
public string Open(string OpenMethod,string URL,bool Async)
{
object obj;
obj = HttpObj.DoMethod("Open",new object[]{OpenMethod,URL,Async});
if (obj != null)
{
_Active = false;
return obj.ToString();
}
else
{
SetRequestHeader("Content-Type",_ContentType);
SetRequestHeader("User-Agent","Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1)");
if (_ContentLength != 0) SetRequestHeader("Content-Length",_ContentLength);
_Active = true;
return "True";
}
}
//发送数据
public string Send(string body)
{
if(!_Active) return "False";
object obj;
obj = HttpObj.DoMethod("Send",new object[1]{body});
if(obj != null) return obj.ToString();
else return "True";
}
public void ClearPostData()
{
this.PostDataList.Clear();
}
//增加提交数据信息
public void AddPostField(string FieldName,object Value)
{
this.PostDataList.Add(FieldName+"="+Value.ToString());
}
//通过参数指定提交
public string DxPost()
{
if(!_Active)
{
return "False";
}
string st="";
for(int i=0;i<this.PostDataList.Count;i++)
{
if(st != "") st = st + "&"+ PostDataList[i].ToString();
else st = PostDataList[i].ToString();
}
this.ContentLength = st.Length;
return Send(st);
}
//设置等待超时等
public string SetTimeouts(long ResolveTimeout,long ConnectTimeout,long SendTimeout,long ReceiveTimeout)
{
object obj;
obj = HttpObj.DoMethod("SetTimeouts",new object[4]{ResolveTimeout,ConnectTimeout,SendTimeout,ReceiveTimeout});
if(obj != null) return obj.ToString();
else return "True";
}
//等待数据提交完成
public string WaitForResponse(object Timeout,out bool Succeeded)
{
if(!_Active) {Succeeded = false;return "";}
object obj;
bool succ;
succ = false;
System.Reflection.ParameterModifier[] ParamesM;
ParamesM = new System.Reflection.ParameterModifier[1];
ParamesM[0] = new System.Reflection.ParameterModifier (2); // 初始化为接口参数的个数
ParamesM[0][1] = true; // 设置第二个参数为返回参数
//ParamesM[1] = true;
object[] ParamArray = new object[2]{Timeout,succ};
obj = HttpObj.DoMethod("WaitForResponse",ParamArray,ParamesM);
System.Windows.Forms.MessageBox.Show(ParamArray[1].ToString());
Succeeded=bool.Parse(ParamArray[1].ToString());
//Succeeded = bool.Parse(ParamArray[1].ToString);
if(obj != null) {return obj.ToString();}
else return "True";
}
public string GetResponseHeader(string Header,ref string Value)
{
if(!_Active) {Value="";return "";}
object obj;
/*string str;
str = "";
System.Reflection.ParameterModifier[] Parames;
Parames = new System.Reflection.ParameterModifier[1];
Parames[0] = new System.Reflection.ParameterModifier (2); // 初始化为接口参数的个数
Parames[0][1] = true; */// 设置第二个参数为返回参数
obj = HttpObj.DoMethod("GetResponseHeader",new object[2]{Header,Value});
//Value = str;
if(obj != null) {return obj.ToString();}
else return "True";
}
}
}
* Created by SharpDevelop.
* 作者: 不得闲
* Date: 2009-12-2
* Time: 23:26
*
* To change this template use Tools | Options | Coding | Edit Standard Headers.
*/
using System;
namespace DxComOperate
{
/// <summary>
/// COM对象的后期绑定调用类库
/// </summary>
public class DxComObject
{
private System.Type _ObjType;
private object ComInstance;
/*public DxComObject()
{
throw new
}*/
public DxComObject(string ComName)
{
//根据COM对象的名称创建COM对象
_ObjType = System.Type.GetTypeFromProgID(ComName);
if(_ObjType==null)
throw new Exception("指定的COM对象名称无效");
ComInstance = System.Activator.CreateInstance(_ObjType);
}
public System.Type ComType
{
get{return _ObjType;}
}
//执行的函数
public object DoMethod(string MethodName,object[] args)
{
return ComType.InvokeMember(MethodName,System.Reflection.BindingFlags.InvokeMethod,null,ComInstance,args);
}
public object DoMethod(string MethodName,object[] args,System.Reflection.ParameterModifier[] ParamMods)
{
return ComType.InvokeMember(MethodName,System.Reflection.BindingFlags.InvokeMethod,null,ComInstance,args,ParamMods,null,null);
}
//获得属性与设置属性
public object this[string propName]
{
get
{
return _ObjType.InvokeMember( propName, System.Reflection.BindingFlags.GetProperty, null, ComInstance, null );
}
set
{
_ObjType.InvokeMember( propName, System.Reflection.BindingFlags.SetProperty, null, ComInstance, new object[] {value} );
}
}
}
/// <summary>
/// WinHttp对象库
/// </summary>
public class DxWinHttp
{
private DxComObject HttpObj;
private string _ContentType;
private int _ContentLength;
private bool _Active;
private System.Collections.ArrayList PostDataList;//提交的数据字段
public DxWinHttp()
{
//构建WinHttp对象
HttpObj = new DxComObject("WinHttp.WinHttpRequest.5.1");
_ContentType = "application/x-www-form-urlencoded";
_ContentLength = 0;
PostDataList = new System.Collections.ArrayList();
}
//提交参数信息的个数
public int PostDataCount
{
get{return PostDataList.Count;}
}
//设置Content-Type属性
public string ContentType
{
get{return _ContentType;}
set
{
if(!_Active) _ContentType = value;
else if(_ContentType.CompareTo(value)!=0)
{
_ContentType = value;
SetRequestHeader("Content-Type",_ContentType);
}
}
}
//对象是否是打开状态
public bool Active
{
get{return _Active;}
}
//设置Send数据的长度
public int ContentLength
{
get{return _ContentLength;}
set
{
if(!_Active) _ContentLength = value;
else if(_ContentLength != value)
{
_ContentLength = value;
HttpObj.DoMethod("SetRequestHeader",new object[2]{"Content-Length",value});
}
}
}
//执行之后返回的结果
public string ResponseBody
{
get
{
if(_Active)
{
DxComObject AdoStream = new DxComObject("Adodb.Stream");
AdoStream["Type"] = 1;
AdoStream["Mode"] = 3;
AdoStream.DoMethod("Open",new object[]{});
AdoStream.DoMethod("Write",new object[1]{HttpObj["ResponseBody"]});
AdoStream["Position"] = 0;
AdoStream["Type"] = 2;
AdoStream["Charset"] = "GB2312";
return AdoStream["ReadText"].ToString();
}
else return "";
}
}
//设定请求头
public string SetRequestHeader(string Header,object Value)
{
object obj;
obj = HttpObj.DoMethod("SetRequestHeader",new object[]{Header,Value});
if(obj != null) return obj.ToString();
else return "True";
}
//打开URL执行OpenMethod方法,Async指定是否采用异步方式调用,异步方式不会阻塞
public string Open(string OpenMethod,string URL,bool Async)
{
object obj;
obj = HttpObj.DoMethod("Open",new object[]{OpenMethod,URL,Async});
if (obj != null)
{
_Active = false;
return obj.ToString();
}
else
{
SetRequestHeader("Content-Type",_ContentType);
SetRequestHeader("User-Agent","Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1)");
if (_ContentLength != 0) SetRequestHeader("Content-Length",_ContentLength);
_Active = true;
return "True";
}
}
//发送数据
public string Send(string body)
{
if(!_Active) return "False";
object obj;
obj = HttpObj.DoMethod("Send",new object[1]{body});
if(obj != null) return obj.ToString();
else return "True";
}
public void ClearPostData()
{
this.PostDataList.Clear();
}
//增加提交数据信息
public void AddPostField(string FieldName,object Value)
{
this.PostDataList.Add(FieldName+"="+Value.ToString());
}
//通过参数指定提交
public string DxPost()
{
if(!_Active)
{
return "False";
}
string st="";
for(int i=0;i<this.PostDataList.Count;i++)
{
if(st != "") st = st + "&"+ PostDataList[i].ToString();
else st = PostDataList[i].ToString();
}
this.ContentLength = st.Length;
return Send(st);
}
//设置等待超时等
public string SetTimeouts(long ResolveTimeout,long ConnectTimeout,long SendTimeout,long ReceiveTimeout)
{
object obj;
obj = HttpObj.DoMethod("SetTimeouts",new object[4]{ResolveTimeout,ConnectTimeout,SendTimeout,ReceiveTimeout});
if(obj != null) return obj.ToString();
else return "True";
}
//等待数据提交完成
public string WaitForResponse(object Timeout,out bool Succeeded)
{
if(!_Active) {Succeeded = false;return "";}
object obj;
bool succ;
succ = false;
System.Reflection.ParameterModifier[] ParamesM;
ParamesM = new System.Reflection.ParameterModifier[1];
ParamesM[0] = new System.Reflection.ParameterModifier (2); // 初始化为接口参数的个数
ParamesM[0][1] = true; // 设置第二个参数为返回参数
//ParamesM[1] = true;
object[] ParamArray = new object[2]{Timeout,succ};
obj = HttpObj.DoMethod("WaitForResponse",ParamArray,ParamesM);
System.Windows.Forms.MessageBox.Show(ParamArray[1].ToString());
Succeeded=bool.Parse(ParamArray[1].ToString());
//Succeeded = bool.Parse(ParamArray[1].ToString);
if(obj != null) {return obj.ToString();}
else return "True";
}
public string GetResponseHeader(string Header,ref string Value)
{
if(!_Active) {Value="";return "";}
object obj;
/*string str;
str = "";
System.Reflection.ParameterModifier[] Parames;
Parames = new System.Reflection.ParameterModifier[1];
Parames[0] = new System.Reflection.ParameterModifier (2); // 初始化为接口参数的个数
Parames[0][1] = true; */// 设置第二个参数为返回参数
obj = HttpObj.DoMethod("GetResponseHeader",new object[2]{Header,Value});
//Value = str;
if(obj != null) {return obj.ToString();}
else return "True";
}
}
}
这个对WinHttp的封装，还并不完全，只是封装了一部分的方法和属性，剩下的，如果又需要的人，可自行封装！
本文转自 不得闲 博客园博客，原文链接： http://www.cnblogs.com/DxSoft/archive/2010/01/02/1637669.html ，如需转载请自行联系原作者