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驗證工具類以及基本驗證方法
把下麵的代碼放在一個類中，叫"Utility.cs"
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Text.RegularExpressions;
using System.Text;
using System.Web.UI.WebControls;
namespace Tool
{
public class Utility
{
private static Regex RegPhone = new Regex("^[0-9]+[-]?[0-9]+[-]?[0-9]$");
private static Regex RegNumber = new Regex("^[0-9]+$");
private static Regex RegNumberSign = new Regex("^[+-]?[0-9]+$");
private static Regex RegDecimal = new Regex("^[0-9]+[.]?[0-9]+$");
private static Regex RegDecimalSign = new Regex("^[+-]?[0-9]+[.]?[0-9]+$"); //等價於^[+-]?\d+[.]?\d+$
private static Regex RegEmail = new Regex("^[\\w-]+@[\\w-]+\\.(com|net|org|edu|mil|tv|biz|info)$");//w 英文字母或數字的字符串，和 [a-zA-Z0-9] 語法一樣
private static Regex RegCHZN = new Regex("[\u4e00-\u9fa5]");
/// <summary>
/// 驗證文本數據是不是為空
/// </summary>
/// <param name="o">對象</param>
/// <returns>布爾型</returns>
public static bool CheckFormTextNotEmpty(object o)
{
if (o == null || o.ToString().Trim().Length == 0)
{
return false;
}
else
{
return true;
}
}
/// <summary>
/// 判斷對象是否為Int32類型的數字
/// </summary>
/// <param name="Expression"></param>
/// <returns></returns>
public static bool IsNumeric(object Expression)
{
if (Expression != null)
{
string str = Expression.ToString();
if (str.Length > 0 && str.Length <= 11 && Regex.IsMatch(str, @"^[-]?[0-9]*[.]?[0-9]*$"))
{
if ((str.Length < 10) || (str.Length == 10 && str[0] == '1') || (str.Length == 11 && str[0] == '-' && str[1] == '1'))
{
return true;
}
}
}
return false;
}
/// <summary>
/// 從Session裏麵獲取UserInfo
/// </summary>
/// <returns></returns>
public static Model.UserInfo GetUserFromSession()
{
object o = System.Web.HttpContext.Current.Session["SafeSystemUserInfo"];
if (o != null)
return (o as Model.UserInfo);
else
return null;
}
/// <summary>
/// 從Session裏麵移除UserInfo
/// </summary>
/// <returns></returns>
public static void RemoveUserFromSession()
{
System.Web.HttpContext.Current.Session["SafeSystemUserInfo"]="";
}
/// <summary>
/// 保存員工信息到Session
/// </summary>
/// <param name="staff"></param>
public static void SavaUserInSession(Model.UserInfo user)
{
System.Web.HttpContext.Current.Session["SafeSystemUserInfo"] = user;
}
#region 數字字符串檢查
public static bool IsPhone(string inputData)
{
Match m = RegPhone.Match(inputData);
return m.Success;
}
/// <summary>
/// 檢查Request查詢字符串的鍵值，是否是數字，最大長度限製
/// </summary>
/// <param name="req">Request</param>
/// <param name="inputKey">Request的鍵值</param>
/// <param name="maxLen">最大長度</param>
/// <returns>返回Request查詢字符串</returns>
public static string FetchInputDigit(HttpRequest req, string inputKey, int maxLen)
{
string retVal = string.Empty;
if(inputKey != null && inputKey != string.Empty)
{
retVal = req.QueryString[inputKey];
if(null == retVal)
retVal = req.Form[inputKey];
if(null != retVal)
{
retVal = SqlText(retVal, maxLen);
if(!IsNumber(retVal))
retVal = string.Empty;
}
}
if(retVal == null)
retVal = string.Empty;
return retVal;
}
/// <summary>
/// 是否數字字符串
/// </summary>
/// <param name="inputData">輸入字符串</param>
/// <returns></returns>
public static bool IsNumber(string inputData)
{
Match m = RegNumber.Match(inputData);
return m.Success;
}
/// <summary>
/// 是否數字字符串 可帶正負號
/// </summary>
/// <param name="inputData">輸入字符串</param>
/// <returns></returns>
public static bool IsNumberSign(string inputData)
{
Match m = RegNumberSign.Match(inputData);
return m.Success;
}
/// <summary>
/// 是否是浮點數
/// </summary>
/// <param name="inputData">輸入字符串</param>
/// <returns></returns>
public static bool IsDecimal(string inputData)
{
Match m = RegDecimal.Match(inputData);
return m.Success;
}
/// <summary>
/// 是否是浮點數 可帶正負號
/// </summary>
/// <param name="inputData">輸入字符串</param>
/// <returns></returns>
public static bool IsDecimalSign(string inputData)
{
Match m = RegDecimalSign.Match(inputData);
return m.Success;
}
/// <summary>
/// 驗證輸入大小是否超過了數據庫允許的大小
/// </summary>
/// <param name="input">輸入的內容</param>
/// <param name="maxlength">最大長度</param>
/// <returns></returns>
public static bool IsGreaterThanStandardLength(string input, int maxlength)
{
if (input.Length >= maxlength)
{
return false;
}
else
{
return true;
}
}
#endregion
#region 中文檢測
/// <summary>
/// 檢測是否有中文字符
/// </summary>
/// <param name="inputData"></param>
/// <returns></returns>
public static bool IsHasCHZN(string inputData)
{
Match m = RegCHZN.Match(inputData);
return m.Success;
}
#endregion
#region 郵件地址
/// <summary>
/// 是否是浮點數 可帶正負號
/// </summary>
/// <param name="inputData">輸入字符串</param>
/// <returns></returns>
public static bool IsEmail(string inputData)
{
Match m = RegEmail.Match(inputData);
return m.Success;
}
#endregion
#region 日期格式判斷
/// <summary>
/// 日期格式字符串判斷
/// </summary>
/// <param name="str"></param>
/// <returns></returns>
public static bool IsDateTime(string str)
{
try
{
if (!string.IsNullOrEmpty(str))
{
DateTime.Parse(str);
return true;
}
else
{
return false;
}
}
catch
{
return false;
}
}
#endregion
#region 其他
/// <summary>
/// 檢查字符串最大長度，返回指定長度的串
/// </summary>
/// <param name="sqlInput">輸入字符串</param>
/// <param name="maxLength">最大長度</param>
/// <returns></returns>
public static string SqlText(string sqlInput, int maxLength)
{
if(sqlInput != null && sqlInput != string.Empty)
{
sqlInput = sqlInput.Trim();
if(sqlInput.Length > maxLength)//按最大長度截取字符串
sqlInput = sqlInput.Substring(0, maxLength);
}
return sqlInput;
}
/// <summary>
/// 字符串編碼
/// </summary>
/// <param name="inputData"></param>
/// <returns></returns>
public static string HtmlEncode(string inputData)
{
return HttpUtility.HtmlEncode(inputData);
}
/// <summary>
/// 設置Label顯示Encode的字符串
/// </summary>
/// <param name="lbl"></param>
/// <param name="txtInput"></param>
public static void SetLabel(Label lbl, string txtInput)
{
lbl.Text = HtmlEncode(txtInput);
}
public static void SetLabel(Label lbl, object inputObj)
{
SetLabel(lbl, inputObj.ToString());
}
//字符串清理
public static string InputText(string inputString, int maxLength)
{
StringBuilder retVal = new StringBuilder();
// 檢查是否為空
if ((inputString != null) && (inputString != String.Empty))
{
inputString = inputString.Trim();
//檢查長度
if (inputString.Length > maxLength)
inputString = inputString.Substring(0, maxLength);
//替換危險字符
for (int i = 0; i < inputString.Length; i++)
{
switch (inputString[i])
{
case '"':
retVal.Append(""");
break;
case '<':
retVal.Append("<");
break;
case '>':
retVal.Append(">");
break;
default:
retVal.Append(inputString[i]);
break;
}
}
retVal.Replace("'", " ");// 替換單引號
}
return retVal.ToString();
}
/// <summary>
/// 轉換成 HTML code
/// </summary>
/// <param name="str">string</param>
/// <returns>string</returns>
public static string Encode(string str)
{
str = str.Replace("&","&");
str = str.Replace("'","''");
str = str.Replace(""",""");
str = str.Replace(" "," ");
str = str.Replace("<","<");
str = str.Replace(">",">");
str = str.Replace("\n","<br>");
return str;
}
/// <summary>
///解析html成 普通文本
/// </summary>
/// <param name="str">string</param>
/// <returns>string</returns>
public static string Decode(string str)
{
str = str.Replace("<br>","\n");
str = str.Replace(">",">");
str = str.Replace("<","<");
str = str.Replace(" "," ");
str = str.Replace(""",""");
return str;
}
public static string SqlTextClear(string sqlText)
{
if (sqlText == null)
{
return null;
}
if (sqlText == "")
{
return "";
}
sqlText = sqlText.Replace(",", "");//去除,
sqlText = sqlText.Replace("<", "");//去除<
sqlText = sqlText.Replace(">", "");//去除>
sqlText = sqlText.Replace("--", "");//去除--
sqlText = sqlText.Replace("'", "");//去除'
sqlText = sqlText.Replace(""", "");//去除"
sqlText = sqlText.Replace("=", "");//去除=
sqlText = sqlText.Replace("%", "");//去除%
sqlText = sqlText.Replace(" ", "");//去除空格
return sqlText;
}
#endregion
#region 是否由特定字符組成
public static bool isContainSameChar(string strInput)
{
string charInput = string.Empty;
if (!string.IsNullOrEmpty(strInput))
{
charInput = strInput.Substring(0, 1);
}
return isContainSameChar(strInput, charInput, strInput.Length);
}
public static bool isContainSameChar(string strInput, string charInput, int lenInput)
{
if (string.IsNullOrEmpty(charInput))
{
return false;
}
else
{
Regex RegNumber = new Regex(string.Format("^([{0}])+$", charInput));
//Regex RegNumber = new Regex(string.Format("^([{0}]{{1}})+$", charInput,lenInput));
Match m = RegNumber.Match(strInput);
return m.Success;
}
}
#endregion
#region 檢查輸入的參數是不是某些定義好的特殊字符：這個方法目前用於密碼輸入的安全檢查
/// <summary>
/// 檢查輸入的參數是不是某些定義好的特殊字符：這個方法目前用於密碼輸入的安全檢查
/// </summary>
public static bool isContainSpecChar(string strInput)
{
string[] list = new string[] { "123456", "654321" };
bool result = new bool();
for (int i = 0; i < list.Length; i++)
{
if (strInput == list[i])
{
result = true;
break;
}
}
return result;
}
#endregion
}
}
基本驗證方法
string strErr = "";
if (!Utility.IsNumber(YearTxt.Value))
{
strErr += "通知卡文號時間錯誤！\\n";
}
if (NumberTxt.Value.Trim().Length==0)
{
strErr += "文檔編號不能為空！\\n";
}
if (ChargeNameTxt.Value.Trim().Length == 0)
{
strErr += "部門負責人不能為空！\\n";
}
if (!Utility.IsDateTime(CompleteDateTxt.Value))
{
strErr += "整改日期格式不正確！\\n";
}
if (strErr != "")
{
JScript.Alert(strErr);
return;
}
else
{
.......................
}
最後更新：2017-04-02 22:16:08