PageHelper 类和 ValidateHelper 类

最新推荐文章于 2021-12-06 16:37:11 发布

weixin_33756418

最新推荐文章于 2021-12-06 16:37:11 发布

阅读量288

点赞数

CC 4.0 BY-SA版权

原文链接：http://www.cnblogs.com/cnscpz/archive/2011/10/13/2209888.html

本文介绍了一个实用的PageRequest类，该类提供了从HTTP请求中获取字符串和整型参数的方法，并通过ValidateHelper类验证数据格式，如数字、浮点数、电子邮件等。

摘要生成于 C知道，由 DeepSeek-R1 满血版支持，前往体验 >

PageHelper 类

View Code

  1  public class PageRequest
  2     {
  3         /// <summary>
  4         /// 从地址栏获取值
  5         /// </summary>
  6         /// <param name="page">页面</param>
  7         /// <param name="para">参数</param>
  8         /// <returns></returns>
  9         public static string GetQueryString(string para)
 10         {
 11             string queryString = "";
 12             if (System.Web.HttpContext.Current.Request.QueryString[para] != null)
 13             {
 14                 queryString = System.Web.HttpContext.Current.Request.QueryString[para].ToString();
 15             }
 16             else
 17             {
 18                 queryString = "";
 19             }
 20             return queryString.Trim();
 21         }
 22         
 23         /// <summary>
 24         /// 从地址栏获取相关int值
 25         /// </summary>
 26         /// <param name="page">页面</param>
 27         /// <param name="para">参数</param>
 28         /// <returns></returns>
 29         public static int GetQueryInt(string para)
 30         {
 31             int queryInt = -1;
 32             string tempQueryString = GetQueryString(para);
 33             if (ValidateHelper.IsNumber(tempQueryString))
 34             {
 35                 queryInt = int.Parse(tempQueryString);
 36             }
 37             return queryInt;
 38         }
 39 
 40         /// <summary>
 41         /// 从表单项获取相关值
 42         /// </summary>
 43         /// <param name="page">页面</param>
 44         /// <param name="para">参数</param>
 45         /// <returns></returns>
 46         public static string GetFormString(string para)
 47         {
 48             string formString = "";
 49             if (System.Web.HttpContext.Current.Request.Form[para] != null)
 50             {
 51                 formString = System.Web.HttpContext.Current.Request.Form[para].ToString();
 52             }
 53             else
 54             {
 55                 formString = "";
 56             }
 57             return formString.Trim();
 58         }
 59 
 60         /// <summary>
 61         /// 从表单获取Int类型的值
 62         /// </summary>
 63         /// <param name="page">页面</param>
 64         /// <param name="para">参数</param>
 65         /// <returns></returns>
 66         public static int GetFormInt(string para)
 67         {
 68             int formInt = -1;
 69             string tempFormString = GetFormString(para);
 70             if (ValidateHelper.IsNumber(tempFormString))
 71             {
 72                 formInt = int.Parse(tempFormString);
 73             }
 74             return formInt;
 75         }
 76 
 77         /// <summary>
 78         /// 从页面中获取string类型值
 79         /// </summary>
 80         /// <param name="page">页面</param>
 81         /// <param name="para">参数</param>
 82         /// <returns></returns>
 83         public static string GetString(string para)
 84         {
 85             if (System.Web.HttpContext.Current.Request.RequestType.ToLower().Equals("get"))
 86             {
 87                 return GetQueryString(para);
 88             }
 89             else
 90             {
 91                 return GetFormString(para);
 92             }
 93         }
 94 
 95         /// <summary>
 96         /// 从页面中获取Int类型的值
 97         /// </summary>
 98         /// <param name="page">页面</param>
 99         /// <param name="para">参数</param>
100         /// <returns></returns>
101         public static int GetInt(string para)
102         {
103             string tempInt = GetString(para);
104             int intReturn = -1;
105             if (ValidateHelper.IsNumber(tempInt))
106             {
107                 intReturn = int.Parse(tempInt);
108             }
109             return intReturn;
110         }
111 
112         /// <summary>
113         /// 从参数中获取相关参数数组
114         /// </summary>
115         /// <param name="page"></param>
116         /// <returns></returns>
117         public static Hashtable GetQueryPara()
118         {
119             int paraCount = System.Web.HttpContext.Current.Request.QueryString.Count;
120             string queryKey = "";
121             string queryValue = "";
122             Hashtable para = new Hashtable();
123             for (int i = 0; i < paraCount; i++)
124             {
125                 queryKey = System.Web.HttpContext.Current.Request.QueryString.Keys[i].ToString();
126                 queryValue = System.Web.HttpContext.Current.Request.QueryString[i].ToString();
127                 if (!queryKey.Equals("pageindex"))
128                 {
129                     para.Add(queryKey, queryValue);
130                 }
131             }
132             return para;
133             
134         }
135         /// <summary>
136         /// 从表单中获取相关参数数组
137         /// </summary>
138         /// <param name="page"></param>
139         /// <returns></returns>
140         public static Hashtable GetFormPara()
141         {
142             int paraCount = System.Web.HttpContext.Current.Request.Form.Count;
143             string formKey = "";
144             string formValue = "";
145             Hashtable para=new Hashtable();
146             for (int i = 0; i < paraCount; i++)
147             {
148                 formKey = System.Web.HttpContext.Current.Request.Form.Keys[i].ToString();
149                 formValue = System.Web.HttpContext.Current.Request.Form[i].ToString();
150                 if (!formKey.Equals("pageindex"))
151                 {
152                     para.Add(formKey, formValue);
153                 }
154             }
155             
156             return para;
157             
158         }
159 
160         /// <summary>
161         /// 获取参数数组
162         /// </summary>
163         /// <param name="page"></param>
164         /// <returns></returns>
165         public static Hashtable GetPara()
166         {
167             if (System.Web.HttpContext.Current.Request.RequestType.ToLower().Equals("get"))
168             {
169                 return GetQueryPara();
170             }
171             else
172             {
173                 return GetFormPara();
174             }
175         }
176     }

ValidateHelper 类

View Code

/// <summary>
/// 数据验证
/// </summary>
    public class ValidateHelper
    {
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]+$");
private static Regex RegDecimalSign = new Regex("^[+-]?[0-9]+[.]?[0-9]+$");
private static Regex RegEmail = new Regex("^[\\w-]+@[\\w-]+\\.(com|net|org|edu|mil|tv|biz|info)$");
private static Regex RegCHZN = new Regex("[\u4e00-\u9fa5]");

#region 数字字符串检查

/// <summary>
/// 是否数字字符串
/// </summary>
/// <param name="inputData">输入字符串</param>
/// <returns></returns>
        public static bool IsNumber(string inputData)
        {
            Match m = RegNumber.Match(inputData);
return m.Success;
        }

/// <summary>
/// 是否数字字符串 可带正负号
/// </summary>
/// <param name="inputData">输入字符串</param>
/// <returns></returns>
        public static bool IsNumberSign(string inputData)
        {
            Match m = RegNumberSign.Match(inputData);
return m.Success;
        }

/// <summary>
/// 是否是浮点数
/// </summary>
/// <param name="inputData">输入字符串</param>
/// <returns></returns>
        public static bool IsDecimal(string inputData)
        {
            Match m = RegDecimal.Match(inputData);
return m.Success;
        }

/// <summary>
/// 是否是浮点数 可带正负号
/// </summary>
/// <param name="inputData">输入字符串</param>
/// <returns></returns>
        public static bool IsDecimalSign(string inputData)
        {
            Match m = RegDecimalSign.Match(inputData);
return m.Success;
        }

#endregion

#region 中文检测

/// <summary>
/// 检测是否有中文字符
/// </summary>
/// <param name="inputData"></param>
/// <returns></returns>
        public static bool IsHasCHZN(string inputData)
        {
            Match m = RegCHZN.Match(inputData);
return m.Success;
        }

#endregion

#region 邮件地址
/// <summary>
/// 是否是浮点数 可带正负号
/// </summary>
/// <param name="inputData">输入字符串</param>
/// <returns></returns>
        public static bool IsEmail(string inputData)
        {
            Match m = RegEmail.Match(inputData);
return m.Success;
        }

#endregion

#region 是否是时间格式
/// <summary>
/// 判断一个字符串是否时间格式
/// </summary>
/// <param name="inputData">输入字符串</param>
/// <returns></returns>
        public static bool IsDateTime(string inputData)
        {
try
            {
                Convert.ToDateTime(inputData);
return true;
            }
catch
            {
return false;
            }
        }

#endregion
    }