当前文件路径：MyShop/BLL/Utils.cs 
1
using System;
2using System.Collections.Generic;
3using System.Text;
4using System.Security.Cryptography;
5using System.Text.RegularExpressions;
6using System.Web;
7using System.Web.UI;
8using Microsoft.VisualBasic;
9using System.IO;
10using System.Security.Permissions;
11using System.Collections;
12using System.Runtime.InteropServices;
13
14namespace MyShop.BLL
15
...{
16
/**//// <summary>
17
/// 工具类
18
/// </summary>
19 public class Utils
20 ...{
21 String字符串类#region String字符串类
22 /**//// <summary>
23 /// 返回字符串真实长度, 1个汉字长度为2
24 /// </summary>
25 /// <returns></returns>
26 public static int GetStringLength(string str)
27 ...{
28 return Encoding.Default.GetBytes(str).Length;
29 }
30 /**//// <summary>
31 /// 过滤非法字符
32 /// </summary>
33 /// <param name="str"></param>
34 /// <returns></returns>
35 public static string ReplaceBadChar(string str)
36 ...{
37 if (string.IsNullOrEmpty(str))
38 return "";
39 string strBadChar, tempChar;
40 string[] arrBadChar;
41 strBadChar = "@@,+,',--,%,^,&,?,(,),<,>,[,],{,},/,\\,;,:,\",\"\",";
42 arrBadChar = SplitString(strBadChar, ",");
43 tempChar = str;
44 for (int i = 0; i < arrBadChar.Length; i++)
45 ...{
46 if (arrBadChar[i].Length > 0)
47 tempChar = tempChar.Replace(arrBadChar[i], "");
48 }
49 return tempChar;
50 }
51
52
53 /**//// <summary>
54 /// 检查是否含有非法字符
55 /// </summary>
56 /// <param name="str">要检查的字符串</param>
57 /// <returns></returns>
58 public static bool ChkBadChar(string str)
59 ...{
60 bool result = false;
61 if (string.IsNullOrEmpty(str))
62 return result;
63 string strBadChar, tempChar;
64 string[] arrBadChar;
65 strBadChar = "@@,+,',--,%,^,&,?,(,),<,>,[,],{,},/,\\,;,:,\",\"\"";
66 arrBadChar = SplitString(strBadChar, ",");
67 tempChar = str;
68 for (int i = 0; i < arrBadChar.Length; i++)
69 ...{
70 if (tempChar.IndexOf(arrBadChar[i]) >= 0)
71 result = true;
72 }
73 return result;
74 }
75
76
77 /**//// <summary>
78 /// 分割字符串
79 /// </summary>
80 public static string[] SplitString(string strContent, string strSplit)
81 ...{
82 int i = strContent.IndexOf(strSplit);
83 if (strContent.IndexOf(strSplit) < 0)
84 ...{
85 string[] tmp = ...{ strContent };
86 return tmp;
87 }
88 //return Regex.Split(strContent, @strSplit.Replace(".", @"\."), RegexOptions.IgnoreCase);
89
90 return Regex.Split(strContent, @strSplit.Replace(".", @"\."));
91 }
92 /**//// <summary>
93 /// 检测是否有危险的可能用于链接的字符串
94 /// </summary>
95 /// <param name="str">要判断字符串</param>
96 /// <returns>判断结果</returns>
97 public static bool IsSafeUserInfoString(string str)
98 ...{
99 return !Regex.IsMatch(str, @"/^\s*$|^c:\\con\\con$|[%,\*" + "\"" + @"\s\t\<\>\&]|$guestexp/is");
100 }
101
102 /**//// <summary>
103 /// string型转换为int型
104 /// </summary>
105 /// <param name="strValue">要转换的字符串</param>
106 /// <returns>转换后的int类型结果.如果要转换的字符串是非数字,则返回-1.</returns>
107 public static int StrToInt(object strValue)
108 ...{
109 int defValue = -1;
110 if ((strValue == null) || (strValue.ToString() == string.Empty) || (strValue.ToString().Length > 10))
111 ...{
112 return defValue;
113 }
114
115 string val = strValue.ToString();
116 string firstletter = val[0].ToString();
117
118 if (val.Length == 10 && IsNumber(firstletter) && int.Parse(firstletter) > 1)
119 ...{
120 return defValue;
121 }
122 else if (val.Length == 10 && !IsNumber(firstletter))
123 ...{
124 return defValue;
125 }
126
127
128 int intValue = defValue;
129 if (strValue != null)
130 ...{
131 bool IsInt = new Regex(@"^([-]|[0-9])[0-9]*$").IsMatch(strValue.ToString());
132 if (IsInt)
133 ...{
134 intValue = Convert.ToInt32(strValue);
135 }
136 }
137
138 return intValue;
139 }
140
141 /**//// <summary>
142 /// string型转换为int型
143 /// </summary>
144 /// <param name="strValue">要转换的字符串</param>
145 /// <param name="defValue">缺省值</param>
146 /// <returns>转换后的int类型结果</returns>
147 public static int StrToInt(object strValue, int defValue)
148 ...{
149 if ((strValue == null) || (strValue.ToString() == string.Empty) || (strValue.ToString().Length > 10))
150 ...{
151 return defValue;
152 }
153
154 string val = strValue.ToString();
155 string firstletter = val[0].ToString();
156
157 if (val.Length == 10 && IsNumber(firstletter) && int.Parse(firstletter) > 1)
158 ...{
159 return defValue;
160 }
161 else if (val.Length == 10 && !IsNumber(firstletter))
162 ...{
163 return defValue;
164 }
165
166
167 int intValue = defValue;
168 if (strValue != null)
169 ...{
170 bool IsInt = new Regex(@"^([-]|[0-9])[0-9]*$").IsMatch(strValue.ToString());
171 if (IsInt)
172 ...{
173 intValue = Convert.ToInt32(strValue);
174 }
175 }
176
177 return intValue;
178 }
179
180 /**//// <summary>
181 /// string型转换为float型
182 /// </summary>
183 /// <param name="strValue">要转换的字符串</param>
184 /// <param name="defValue">缺省值</param>
185 /// <returns>转换后的int类型结果</returns>
186 public static float StrToFloat(object strValue, float defValue)
187 ...{
188 if ((strValue == null) || (strValue.ToString().Length > 10))
189 ...{
190 return defValue;
191 }
192
193 float intValue = defValue;
194 if (strValue != null)
195 ...{
196 bool IsFloat = new Regex(@"^([-]|[0-9])[0-9]*(\.\w*)?$").IsMatch(strValue.ToString());
197 if (IsFloat)
198 ...{
199 intValue = Convert.ToSingle(strValue);
200 }
201 }
202 return intValue;
203 }
204
205
206 /**//// <summary>
207 /// string型转换为时间型
208 /// </summary>
209 /// <param name="strValue">要转换的字符串</param>
210 /// <param name="defValue">缺省值</param>
211 /// <returns>转换后的时间类型结果</returns>
212 public static DateTime StrToDateTime(object strValue,DateTime defValue)
213 ...{
214 if ((strValue == null) || (strValue.ToString().Length > 20))
215 ...{
216 return defValue;
217 }
218
219 DateTime intValue ;
220
221 if (!DateTime.TryParse(strValue.ToString(), out intValue))
222 ...{
223 intValue = defValue;
224 }
225 return intValue;
226 }
227
228
229 /**//// <summary>
230 /// 判断给定的字符串(strNumber)是否是数值型
231 /// </summary>
232 /// <param name="strNumber">要确认的字符串</param>
233 /// <returns>是则返加true 不是则返回 false</returns>
234 public static bool IsNumber(string strNumber)
235 ...{
236 return new Regex(@"^([0-9])[0-9]*(\.\w*)?$").IsMatch(strNumber);
237 }
238
239
240 /**//// <summary>
241 /// 检测是否符合email格式
242 /// </summary>
243 /// <param name="strEmail">要判断的email字符串</param>
244 /// <returns>判断结果</returns>
245 public static bool IsValidEmail(string strEmail)
246 ...{
247 return Regex.IsMatch(strEmail, @"^([\w-\.]+)@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.)|(([\w-]+\.)+))([a-zA-Z]{2,4}|[0-9]{1,3})(\]?)$");
248 }
249
250
251 /**//// <summary>
252 /// 检测是否符合url格式,前面必需含有http://
253 /// </summary>
254 /// <param name="url"></param>
255 /// <returns></returns>
256 public static bool IsURL(string url)
257 ...{
258 return Regex.IsMatch(url,@"^http(s)?://([\w-]+\.)+[\w-]+(/[\w- ./?%&=]*)?$");
259 }
260
261 /**//// <summary>
262 /// 检测是否符合电话格式
263 /// </summary>
264 /// <param name="phoneNumber"></param>
265 /// <returns></returns>
266 public static bool IsPhoneNumber(string phoneNumber)
267 ...{
268 return Regex.IsMatch(phoneNumber,@"^(\(\d{3}\)|\d{3}-)
