web页面常用方法及INI文件的读取方法
public static class PageBase {
public static String MD5(String input)
{
System.Security.Cryptography.MD5 md5 = new System.Security.Cryptography.MD5CryptoServiceProvider();
byte[] bytes = System.Text.Encoding.UTF8.GetBytes(input);
bytes = md5.ComputeHash(bytes);
md5.Clear();
string ret = "";
for (int i = 0; i < bytes.Length; i++)
{
ret += Convert.ToString(bytes[i], 16).PadLeft(2, '0');
}
return ret.PadLeft(32, '0');
}
/// <summary>
/// 截取指定长度字符串
/// </summary>
/// <param keywords="s"></param>
/// <param keywords="l"></param>
/// <returns></returns>
public static string getStr(string s, int l)
{
string temp = s;
if (Regex.Replace(temp, "[\u4e00-\u9fa5]", "zz", RegexOptions.IgnoreCase).Length <= l)
{
return temp;
}
for (int i = temp.Length; i >= 0; i--)
{
temp = temp.Substring(0, i);
if (Regex.Replace(temp, "[\u4e00-\u9fa5]", "zz", RegexOptions.IgnoreCase).Length <= l - 3)
{
temp = temp + "...";
return temp;
}
}
return "";
}
/// <summary>
/// 获取客户端IP
/// </summary>
/// <returns></returns>
public static string GetClientIP()
{
string result = HttpContext.Current.Request.ServerVariables["HTTP_X_FORWARDED_FOR"];
if (null == result || result == String.Empty)
{
result = HttpContext.Current.Request.ServerVariables["REMOTE_ADDR"];
}
if (null == result || result == String.Empty)
{
result = HttpContext.Current.Request.UserHostAddress;
}
return result;
}
/// <summary>
/// 获取网站根目录路径
/// </summary>
/// <returns></returns>
public static string GetWebSiteRootUrl()
{
return HttpContext.Current.Request.Url.AbsoluteUri.Replace(HttpContext.Current.Request.AppRelativeCurrentExecutionFilePath.Replace("~/", string.Empty), string.Empty);
}
/// <summary>
/// 发送电子邮件
/// </summary>
/// <param keywords="addressTo">接收地址</param>
/// <param keywords="addressFrom">发送地址</param>
/// <param keywords="strSubject">邮件标题</param>
/// <param keywords="strBody">邮件内容</param>
/// <param keywords="smtpServer">smtp服务器配置</param>
/// <param keywords="smtpPort">smtp端口</param>
/// <param keywords="password">gmail密码</param>
/// <param keywords="message">提示信息</param>
/// <returns></returns>
public static bool SendEmail(string addressTo, string addressFrom, string strSubject, string strBody, string smtpServer, int smtpPort, string password, ref string message)
{
try
{
using (MailMessage xMessage = new MailMessage(addressFrom, addressTo, strSubject, strBody))
{
SmtpClient xClient;
using (xClient = new SmtpClient(smtpServer, smtpPort))
{
xClient.Credentials = new NetworkCredential(addressFrom, password);
xClient.EnableSsl = false;
xClient.Send(xMessage);
}
}
return true;
}
catch (System.Exception ex)
{
message = ex.Message;
throw ex;
}
}
/// <summary>
/// 将指定字符串按指定长度进行剪切，
/// </summary>
/// <param keywords= "oldStr "> 需要截断的字符串 </param>
/// <param keywords= "maxLength "> 字符串的最大长度 </param>
/// <param keywords= "endWith "> 超过长度的后缀 </param>
/// <returns> 如果超过长度，返回截断后的新字符串加上后缀，否则，返回原字符串 </returns>
public static string StringTruncat(string oldStr, int maxLength, string endWith)
{
if (string.IsNullOrEmpty(oldStr))
// throw new NullReferenceException( "原字符串不能为空 ");
return oldStr + endWith;
if (maxLength < 1)
throw new Exception("返回的字符串长度必须大于[0] ");
if (oldStr.Length > maxLength)
{
string strTmp = oldStr.Substring(0, maxLength);
if (string.IsNullOrEmpty(endWith))
return strTmp;
else
return strTmp + endWith;
}
return oldStr;
}
/// <summary>
/// 取掉标签
/// </summary>
/// <param keywords="beHtml">带标签的正文</param>
/// <returns>无标签正文</returns>
public static string ToContent(string beHtml)
{
string result = System.Text.RegularExpressions.Regex.Replace(beHtml, @"<[^>]*>", "");
return result;
}
/// <summary>
/// 页面弹框
/// </summary>
/// <param name="Msg">显示输出参数</param>
public void Alert(string Msg)
{
string expression = Msg.Trim();
if (expression != "")
{
expression = expression.Replace("'", "\'");
expression = expression.Replace("\"", "\\\"");
expression = expression.Replace(@"\", @"\\");
//expression = expression.Replace("\n", "\\n");
base.ClientScript.RegisterStartupScript(this.GetType(), "PageBaseAlert", string.Format("alert('{0}');", expression), true);
}
}
/// <summary>
/// 解决方案路径
/// </summary>
/// <returns></returns>
protected string Path()
{
try
{
string[] path = System.AppDomain.CurrentDomain.BaseDirectory.Split('\\');
StringBuilder strpath = new StringBuilder();
for (int i = 0; i < path.Length - 2; i++)
{
strpath.Append(path[i] + "\\");
}
strpath.Remove(strpath.Length - 1, 1);
return strpath.ToString();
}
catch (Exception ex)
{
throw new Exception(ex.Message);
}
}
}
//读取INI文件
internal static class WinAPI
{
/// <summary>
/// 写入ini配置文件
/// </summary>
/// <param name="section">INI文件中的段落</param>
/// <param name="key">INI文件中的关键字</param>
/// <param name="val">INI文件中关键字对应的值</param>
/// <param name="filePath">INI文件完整的路径和名称</param>
/// <returns></returns>
[DllImport("kernel32")]
protected static extern long WritePrivateProfileString(string section, string key, string val, string filePath);
/// <summary>
/// 读取ini配置文件
/// </summary>
/// <param name="section">INI文件中的段落</param>
/// <param name="key">INI文件中的关键字</param>
/// <param name="def">无法读取数据时的省缺值</param>
/// <param name="retVal">INI文件中关键字对应的值</param>
/// <param name="size">数值的大小</param>
/// <param name="filePath">INI文件完整的路径和名称</param>
/// <returns></returns>
[DllImport("kernel32")]
protected static extern long GetPrivateProfileString(string section, string key, string def, StringBuilder retVal, int size, string filePath);
}
