实例介绍
【实例简介】 在调试一个使用Http POST协议的接口, 自己用C#写了一个简单的测试工具
【实例截图】
【核心代码】using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.IO;
using System.Net;
using System.Net.Cache;
namespace TestHttpPost
{
public partial class FrmTestHttpPost : Form
{
private EncodingInfo[] _Encodings = null; // 编码集合.
private Encoding _ResEncoding = null; // 回应的编码.
public FrmTestHttpPost()
{
InitializeComponent();
}
/// <summary>
/// 根据BodyName创建Encoding对象。
/// </summary>
/// <param name="bodyname">与邮件代理正文标记一起使用的当前编码的名称。</param>
/// <returns>返回Encoding对象。若没有匹配的BodyName,便返回null。</returns>
public static Encoding Encoding_FromBodyName(string bodyname)
{
if (string.IsNullOrEmpty(bodyname)) return null;
try
{
foreach (EncodingInfo ei in Encoding.GetEncodings())
{
Encoding e = ei.GetEncoding();
if (0 == string.Compare(bodyname, e.BodyName, true))
{
return e;
}
}
}
catch
{
}
return null;
}
/// <summary>
/// 输出日志文本.
/// </summary>
/// <param name="s">日志文本</param>
private void OutLog(string s)
{
txtLog.AppendText(s Environment.NewLine);
txtLog.ScrollToCaret();
}
private void OutLog(string format, params object[] args)
{
OutLog(string.Format(format, args));
}
private void FrmTestHttpPost_Load(object sender, EventArgs e)
{
// Http方法
cboMode.SelectedIndex = 1; // POST
// 回应的编码
cboResEncoding.Items.Clear();
_Encodings = Encoding.GetEncodings();
cboResEncoding.DataSource = _Encodings;
cboResEncoding.DisplayMember = "DisplayName";
_ResEncoding = Encoding.UTF8;
cboResEncoding.SelectedIndex = cboResEncoding.FindStringExact(_ResEncoding.EncodingName);
}
private void btnGo_Click(object sender, EventArgs e)
{
Encoding myEncoding = Encoding.UTF8;
string sMode = (string)cboMode.SelectedItem;
string sUrl = txtUrl.Text;
string sPostData = txtPostData.Text;
string sContentType = "application/x-www-form-urlencoded";
HttpWebRequest req;
// Log Length
if (txtLog.Lines.Length > 3000) txtLog.Clear();
// == main ==
OutLog(string.Format("{2}: {0} {1}", sMode, sUrl, DateTime.Now.ToString("g")));
try
{
// init
req = HttpWebRequest.Create(sUrl) as HttpWebRequest;
req.Method = sMode;
req.Accept = "*/*";
req.KeepAlive = false;
req.CachePolicy = new HttpRequestCachePolicy(HttpRequestCacheLevel.NoCacheNoStore);
if (0 == string.Compare("POST", sMode))
{
byte[] bufPost = myEncoding.GetBytes(sPostData);
req.ContentType = sContentType;
req.ContentLength = bufPost.Length;
Stream newStream = req.GetRequestStream();
newStream.Write(bufPost, 0, bufPost.Length);
newStream.Close();
}
// Response
HttpWebResponse res = req.GetResponse() as HttpWebResponse;
try
{
OutLog("Response.ContentLength:\t{0}", res.ContentLength);
OutLog("Response.ContentType:\t{0}", res.ContentType);
OutLog("Response.CharacterSet:\t{0}", res.CharacterSet);
OutLog("Response.ContentEncoding:\t{0}", res.ContentEncoding);
OutLog("Response.IsFromCache:\t{0}", res.IsFromCache);
OutLog("Response.IsMutuallyAuthenticated:\t{0}", res.IsMutuallyAuthenticated);
OutLog("Response.LastModified:\t{0}", res.LastModified);
OutLog("Response.Method:\t{0}", res.Method);
OutLog("Response.ProtocolVersion:\t{0}", res.ProtocolVersion);
OutLog("Response.ResponseUri:\t{0}", res.ResponseUri);
OutLog("Response.Server:\t{0}", res.Server);
OutLog("Response.StatusCode:\t{0}\t# {1}", res.StatusCode, (int)res.StatusCode);
OutLog("Response.StatusDescription:\t{0}", res.StatusDescription);
// header
OutLog(".\t#Header:"); // 头.
for (int i = 0; i < res.Headers.Count; i)
{
OutLog("[{2}] {0}:\t{1}", res.Headers.Keys[i], res.Headers[i], i);
}
// 找到合适的编码
Encoding encoding = null;
//encoding = Encoding_FromBodyName(res.CharacterSet); // 后来发现主体部分的字符集与Response.CharacterSet不同.
//if (null == encoding) encoding = myEncoding;
encoding = _ResEncoding;
System.Diagnostics.Debug.WriteLine(encoding);
// body
OutLog(".\t#Body:"); // 主体.
using (Stream resStream = res.GetResponseStream())
{
using (StreamReader resStreamReader = new StreamReader(resStream, encoding))
{
OutLog(resStreamReader.ReadToEnd());
}
}
OutLog(".\t#OK."); // 成功.
}
finally
{
res.Close();
}
}
catch (Exception ex)
{
OutLog(ex.ToString());
}
OutLog(string.Empty);
}
private void cboResEncoding_SelectedIndexChanged(object sender, EventArgs e)
{
EncodingInfo ei = cboResEncoding.SelectedItem as EncodingInfo;
if (null == ei) return;
_ResEncoding = ei.GetEncoding();
}
}
}
【实例截图】

【核心代码】using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.IO;
using System.Net;
using System.Net.Cache;
namespace TestHttpPost
{
public partial class FrmTestHttpPost : Form
{
private EncodingInfo[] _Encodings = null; // 编码集合.
private Encoding _ResEncoding = null; // 回应的编码.
public FrmTestHttpPost()
{
InitializeComponent();
}
/// <summary>
/// 根据BodyName创建Encoding对象。
/// </summary>
/// <param name="bodyname">与邮件代理正文标记一起使用的当前编码的名称。</param>
/// <returns>返回Encoding对象。若没有匹配的BodyName,便返回null。</returns>
public static Encoding Encoding_FromBodyName(string bodyname)
{
if (string.IsNullOrEmpty(bodyname)) return null;
try
{
foreach (EncodingInfo ei in Encoding.GetEncodings())
{
Encoding e = ei.GetEncoding();
if (0 == string.Compare(bodyname, e.BodyName, true))
{
return e;
}
}
}
catch
{
}
return null;
}
/// <summary>
/// 输出日志文本.
/// </summary>
/// <param name="s">日志文本</param>
private void OutLog(string s)
{
txtLog.AppendText(s Environment.NewLine);
txtLog.ScrollToCaret();
}
private void OutLog(string format, params object[] args)
{
OutLog(string.Format(format, args));
}
private void FrmTestHttpPost_Load(object sender, EventArgs e)
{
// Http方法
cboMode.SelectedIndex = 1; // POST
// 回应的编码
cboResEncoding.Items.Clear();
_Encodings = Encoding.GetEncodings();
cboResEncoding.DataSource = _Encodings;
cboResEncoding.DisplayMember = "DisplayName";
_ResEncoding = Encoding.UTF8;
cboResEncoding.SelectedIndex = cboResEncoding.FindStringExact(_ResEncoding.EncodingName);
}
private void btnGo_Click(object sender, EventArgs e)
{
Encoding myEncoding = Encoding.UTF8;
string sMode = (string)cboMode.SelectedItem;
string sUrl = txtUrl.Text;
string sPostData = txtPostData.Text;
string sContentType = "application/x-www-form-urlencoded";
HttpWebRequest req;
// Log Length
if (txtLog.Lines.Length > 3000) txtLog.Clear();
// == main ==
OutLog(string.Format("{2}: {0} {1}", sMode, sUrl, DateTime.Now.ToString("g")));
try
{
// init
req = HttpWebRequest.Create(sUrl) as HttpWebRequest;
req.Method = sMode;
req.Accept = "*/*";
req.KeepAlive = false;
req.CachePolicy = new HttpRequestCachePolicy(HttpRequestCacheLevel.NoCacheNoStore);
if (0 == string.Compare("POST", sMode))
{
byte[] bufPost = myEncoding.GetBytes(sPostData);
req.ContentType = sContentType;
req.ContentLength = bufPost.Length;
Stream newStream = req.GetRequestStream();
newStream.Write(bufPost, 0, bufPost.Length);
newStream.Close();
}
// Response
HttpWebResponse res = req.GetResponse() as HttpWebResponse;
try
{
OutLog("Response.ContentLength:\t{0}", res.ContentLength);
OutLog("Response.ContentType:\t{0}", res.ContentType);
OutLog("Response.CharacterSet:\t{0}", res.CharacterSet);
OutLog("Response.ContentEncoding:\t{0}", res.ContentEncoding);
OutLog("Response.IsFromCache:\t{0}", res.IsFromCache);
OutLog("Response.IsMutuallyAuthenticated:\t{0}", res.IsMutuallyAuthenticated);
OutLog("Response.LastModified:\t{0}", res.LastModified);
OutLog("Response.Method:\t{0}", res.Method);
OutLog("Response.ProtocolVersion:\t{0}", res.ProtocolVersion);
OutLog("Response.ResponseUri:\t{0}", res.ResponseUri);
OutLog("Response.Server:\t{0}", res.Server);
OutLog("Response.StatusCode:\t{0}\t# {1}", res.StatusCode, (int)res.StatusCode);
OutLog("Response.StatusDescription:\t{0}", res.StatusDescription);
// header
OutLog(".\t#Header:"); // 头.
for (int i = 0; i < res.Headers.Count; i)
{
OutLog("[{2}] {0}:\t{1}", res.Headers.Keys[i], res.Headers[i], i);
}
// 找到合适的编码
Encoding encoding = null;
//encoding = Encoding_FromBodyName(res.CharacterSet); // 后来发现主体部分的字符集与Response.CharacterSet不同.
//if (null == encoding) encoding = myEncoding;
encoding = _ResEncoding;
System.Diagnostics.Debug.WriteLine(encoding);
// body
OutLog(".\t#Body:"); // 主体.
using (Stream resStream = res.GetResponseStream())
{
using (StreamReader resStreamReader = new StreamReader(resStream, encoding))
{
OutLog(resStreamReader.ReadToEnd());
}
}
OutLog(".\t#OK."); // 成功.
}
finally
{
res.Close();
}
}
catch (Exception ex)
{
OutLog(ex.ToString());
}
OutLog(string.Empty);
}
private void cboResEncoding_SelectedIndexChanged(object sender, EventArgs e)
{
EncodingInfo ei = cboResEncoding.SelectedItem as EncodingInfo;
if (null == ei) return;
_ResEncoding = ei.GetEncoding();
}
}
}
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