一个发送xml远程请求和接收xml请求结果并置入DataSet的方法

王朝other·作者佚名  2007-01-15
窄屏简体版  字體: |||超大  

/// <summary>

/// 返回查询结果

/// </summary>

/// <param name="RequestString">请求的字符串</param>

/// <param name="WriteText">是否打印出表格</param>

/// <returns></returns>

public static System.Data.DataSet GetDataSetByRequest(string RequestString,bool WriteText)

{

String requestStr="http://192.168.1.1

/post.aspx";

String str="request="+RequestString; //request为请求的参数,RequestString是请求的字符串

byte[] bytes = Encoding.GetEncoding("GB2312").GetBytes(str); //可以设置编码

WebRequest webrequest = WebRequest.Create(requestStr);

webrequest.Method = "POST";//请求的类型

webrequest.Timeout = 300000; //超时的毫秒数

webrequest.ContentType="application/x-www-form-urlencoded";

System.Data.DataSet DS = new DataSet();

webrequest.ContentLength=bytes.Length;

Stream oStreamOut = null;

try

{

oStreamOut = webrequest.GetRequestStream();

}

catch

{

webrequest.Abort();

DS.Dispose();

System.Web.HttpContext.Current.Response.Write("请求超时,当前的字符串为:<br>" + System.Web.HttpContext.Current.Server.HtmlEncode(RequestString));

System.Web.HttpContext.Current.Response.End();

}

finally

{

}

oStreamOut.Write(bytes,0,bytes.Length);

oStreamOut.Close();

WebResponse myWebResponse = null;

try

{

myWebResponse = webrequest.GetResponse();

}

catch

{

webrequest.Abort();

DS.Dispose();

System.Web.HttpContext.Current.Response.Write("获取返回的记录出错,当前的字符串为:<br>" + System.Web.HttpContext.Current.Server.HtmlEncode(RequestString));

System.Web.HttpContext.Current.Response.End();

}

Stream streamResponse=myWebResponse.GetResponseStream();

Encoding encode = Encoding.GetEncoding("GB2312");

StreamReader streamRead = new StreamReader(streamResponse, encode);

System.Xml.XmlTextReader Reader = new System.Xml.XmlTextReader(streamRead);

DS.ReadXml(Reader);

Reader.Close();

streamResponse.Close();

streamRead.Close();

myWebResponse.Close();

//Console.Read();

打印返回的Datable

if(WriteText)

{

System.Text.StringBuilder strT = new StringBuilder();

for(int i=0;i<DS.Tables.Count;i++)

{

strT.Append("<br>Table" + i.ToString() + " " + DS.Tables[i].TableName + ":<hr><Table width=100% border=1>");

for(int x=0;x<DS.Tables[i].Rows.Count;x++)

{

strT.Append("<tr>");

for(int y=0;y<DS.Tables[i].Columns.Count;y++)

{

strT.Append("<td>");

strT.Append(DS.Tables[i].Columns[y].ColumnName.ToString() + ":<br>");

strT.Append(DS.Tables[i].Rows[x][y].ToString ());

strT.Append("</td>");

}

strT.Append("</tr>");

}

strT.Append("</table>");

}

System.Web.HttpContext.Current.Response.Write(strT.ToString());

}

return DS;

}

 
 
 
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