WebRequest之Post写法
Web.Config
<globalization responseEncoding="gb2312"/>
CS文件 using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Net;
using System.Text;
using System.IO;
using System.Xml;
using System.Collections;
using System.Diagnostics;
namespace WebPortal
{
public partial class _Default : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
}
protected void Button1_Click(object sender, EventArgs e)
{
CoreProxy.Class1 c = new CoreProxy.Class1();
c.test1();
}
protected void Button2_Click(object sender, EventArgs e)
{
webquerst1();
}
public void webquers2()
{
string html = null;
string url = "http://china.alibaba.com/keyword/promotion.htm?catId=14";
WebRequest req = WebRequest.Create(url);
req.Method = "POST";
WebResponse res = req.GetResponse();
Stream receiveStream = res.GetResponseStream();
Encoding encode = Encoding.GetEncoding("gb2312");
StreamReader sr = new StreamReader(receiveStream, encode);
char[] readbuffer = new char[256];
int n = sr.Read(readbuffer, 0, 256);
while (n > 0)
{
string str = new string(readbuffer, 0, n);
html += str;
n = sr.Read(readbuffer, 0, 256);
}
System.Console.Write(html);
}
//成功！，利用WebRequest 一次Post提交XML内容
public void webquerst1()
{
WebRequest request = WebRequest.Create("http://192.168.1.244/WebPortal/PortalHandler.ashx");
// Set the Method property of the request to POST.
request.Method = "POST";
// Create POST data and convert it to a byte array.
System.Xml.XmlDocument xmlpostdata = new System.Xml.XmlDocument();
xmlpostdata.Load(Server.MapPath("XML/20097.xml"));
string postData = HttpUtility.HtmlEncode(xmlpostdata.InnerXml);
//普通字符串内容
//string postData = "你好，1232355 abdcde";
byte[] byteArray = Encoding.UTF8.GetBytes(postData);
// Set the ContentType property of the WebRequest.
request.ContentType = "application/x-www-form-urlencoded";
// Set the ContentLength property of the WebRequest.
request.ContentLength = byteArray.Length;
// Get the request stream.
Stream dataStream = request.GetRequestStream();
// Write the data to the request stream.
dataStream.Write(byteArray, 0, byteArray.Length);
// Close the Stream object.
dataStream.Close();
// Get the response.
WebResponse response = request.GetResponse();
// Display the status.
//Console.WriteLine(((HttpWebResponse)response).StatusDescription);
// Get the stream containing content returned by the server.
dataStream = response.GetResponseStream();
// Open the stream using a StreamReader for easy access.
StreamReader reader = new StreamReader(dataStream);
// Read the content.
string responseFromServer = reader.ReadToEnd();
// Display the content.
//Console.WriteLine(responseFromServer);
// Clean up the streams.
reader.Close();
dataStream.Close();
response.Close();
}
protected void Button3_Click(object sender, EventArgs e)
{
WebClientPost();
}
//重点！！ 成功 利用Webclient Post 按字段的方式提交每个字段的内容给服务器端
public void WebClientPost()
{
System.Xml.XmlDocument xmlpostdata = new System.Xml.XmlDocument();
xmlpostdata.Load(Server.MapPath("XML/OrderClient.xml"));
string OrderClient = HttpUtility.HtmlEncode(xmlpostdata.InnerXml);
xmlpostdata.Load(Server.MapPath("XML/Order.xml"));
string Order = HttpUtility.HtmlEncode(xmlpostdata.InnerXml);
xmlpostdata.Load(Server.MapPath("XML/TargetOut.xml"));
string TargetOut = HttpUtility.HtmlEncode(xmlpostdata.InnerXml);
xmlpostdata.Load(Server.MapPath("XML/ArrayOfOrderDetail.xml"));
string ArrayOfOrderDetail = HttpUtility.HtmlEncode(xmlpostdata.InnerXml);
System.Net.WebClient WebClientObj = new System.Net.WebClient();
System.Collections.Specialized.NameValueCollection PostVars = new System.Collections.Specialized.NameValueCollection();
//添加值域
PostVars.Add("OrderClient", OrderClient);
PostVars.Add("Order", Order);
PostVars.Add("TargetOut", TargetOut);
PostVars.Add("ArrayOfOrderDetail", ArrayOfOrderDetail);
try
{
byte[] byRemoteInfo = WebClientObj.UploadValues("http://192.168.1.244/WebPortal/PlaceOrder.ashx", "POST", PostVars);
//下面都没用啦，就上面一句话就可以了
string sRemoteInfo = System.Text.Encoding.Default.GetString(byRemoteInfo);
//这是获取返回信息
Debug.WriteLine(sRemoteInfo);
}
catch
{ }
}
//未测试，使用WebClient 一次性提交POst
public static string SendPostRequest(string url, string postString)
{
byte[] postData = Encoding.UTF8.GetBytes(postString);
WebClient client = new WebClient();
client.Headers.Add("Content-Type", "application/x-www-form-urlencoded");
client.Headers.Add("ContentLength", postData.Length.ToString());
byte[] responseData = client.UploadData(url, "POST", postData);
return Encoding.Default.GetString(responseData);
}
/// <summary>
/// 这个是用WEbRequest 提交到WEbService 的例子
/// </summary>
/// <param name="URL"></param>
/// <param name="MethodName"></param>
/// <param name="Pars"></param>
/// <returns></returns>
public static XmlDocument QueryPostWebService(String URL, String MethodName, Hashtable Pars)
{
HttpWebRequest request = (HttpWebRequest)HttpWebRequest.Create(URL);
request.Method = "POST";
request.ContentType = "application/x-www-form-urlencoded";
SetWebRequest(request);
byte[] data = EncodePars(Pars);
WriteRequestData(request, data);
return ReadXmlResponse(request.GetResponse());
}
private static void SetWebRequest(HttpWebRequest request)
{
request.Credentials = CredentialCache.DefaultCredentials;
request.Timeout = 10000;
}
private static void WriteRequestData(HttpWebRequest request, byte[] data)
{
request.ContentLength = data.Length;
Stream writer = request.GetRequestStream();
writer.Write(data, 0, data.Length);
writer.Close();
}
private static byte[] EncodePars(Hashtable Pars)
{
return Encoding.UTF8.GetBytes(ParsToString(Pars));
}
private static String ParsToString(Hashtable Pars)
{
StringBuilder sb = new StringBuilder();
foreach (string k in Pars.Keys)
{
if (sb.Length > 0)
{
sb.Append("&");
}
sb.Append(HttpUtility.UrlEncode(k) + "=" + HttpUtility.UrlEncode(Pars[k].ToString()));
}
return sb.ToString();
}
private static XmlDocument ReadXmlResponse(WebResponse response)
{
StreamReader sr = new StreamReader(response.GetResponseStream(), Encoding.UTF8);
String retXml = sr.ReadToEnd();
sr.Close();
XmlDocument doc = new XmlDocument();
doc.LoadXml(retXml);
return doc;
}
private static void AddDelaration(XmlDocument doc)
{
XmlDeclaration decl = doc.CreateXmlDeclaration("1.0", "utf-8", null);
doc.InsertBefore(decl, doc.DocumentElement);
}
protected void Button4_Click(object sender, EventArgs e)
{
}
}
}
ashx
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Services;
using System.Diagnostics;
using System.IO;
using System.Xml;
namespace WebPortal
{
/// <summary>
/// $codebehindclassname$ 的摘要说明
/// </summary>
[WebService(Namespace = "http://tempuri.org/")]
[WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)]
public class PortalHandler : IHttpHandler
{
public void ProcessRequest(HttpContext context)
{
string testGet = context.Request["testGet"];
string testPost = context.Request["testPost"];
Debug.WriteLine(testGet);
Debug.WriteLine(testPost);
//一次性提交的方式
//获得内容长度
int len = context.Request.ContentLength;
//获得所有内容流
StreamReader reader = new StreamReader(context.Request.InputStream);
//读取内容
string responseFromServer = reader.ReadToEnd();
//字段提交Post方式
string a1 = context.Request["A1"];
string a2 = context.Request["A2"];
string a3 = context.Request["A3"];
//解析Html编码
string re = HttpUtility.HtmlDecode(a1);
XmlDocument xd = new XmlDocument();
//加载XML
xd.LoadXml(re);
context.Response.ContentType = "text/plain";
context.Response.Write(testGet);
}
public bool IsReusable
{
get
{
return false;
}
}
}
}
