asp.net 开发常用的方法一

总结asp.net开发常用的方法一

 

using System;using System.Globalization;using System.Text;using System.Text.RegularExpressions;using System.Collections;using System.IO;namespace MoneyWise{/// <summary>/// utils 的摘要说明。/// </summary>public class utils{private utils(){}public static string ToBin(int source){int t = source;string ret = "";for (int i = 0; i < 32; i++){ret = ((t & 1) == 1 ? "1" : "0") + ret;t >>= 1;}return ret;}public static bool CreateDirs(string path){for (int i = 0; i < path.Length; i++){if (path[i] == '//' || path[i] == '/'){if (Directory.CreateDirectory(path.Substring(0, i)).Exists == false)return false;}}Directory.CreateDirectory(path);return true;}public static void CopyDirectory(string SourceDirectory, string TargetDirectory){if (SourceDirectory[SourceDirectory.Length - 1] == '//' || SourceDirectory[SourceDirectory.Length - 1] == '/')SourceDirectory = SourceDirectory.Substring(0, SourceDirectory.Length - 1);if (TargetDirectory[TargetDirectory.Length - 1] == '//' || TargetDirectory[TargetDirectory.Length - 1] == '/')TargetDirectory = TargetDirectory.Substring(0, TargetDirectory.Length - 1);DirectoryInfo source = new DirectoryInfo(SourceDirectory);DirectoryInfo target = new DirectoryInfo(TargetDirectory);try{//Determine whether the source directory exists.if(!source.Exists)return;if(!target.Exists)target.Create();//Copy files.FileInfo[] sourceFiles = source.GetFiles();for(int i = 0; i < sourceFiles.Length; ++i)File.Copy(sourceFiles[i].FullName, target.FullName + "//" + sourceFiles[i].Name,true);//Copy directories.DirectoryInfo[] sourceDirectories = source.GetDirectories();for(int j = 0; j < sourceDirectories.Length; ++j)CopyDirectory(sourceDirectories[j].FullName,target.FullName +"//" + sourceDirectories[j].Name);}finally{}}public class TDirFile{public bool IsDir;public string name;public TDirFile(bool IsDir, string name){this.IsDir = IsDir;this.name = name;}}public static void GetDirFile(string SourceDirectory, string relative, ArrayList list){//去最后一个/char last = SourceDirectory[SourceDirectory.Length - 1];if (last == '/' || last == '//'){SourceDirectory = SourceDirectory.Substring(0, SourceDirectory.Length - 1);}DirectoryInfo source = new DirectoryInfo(SourceDirectory);//Determine whether the source directory exists.if(!source.Exists)return;FileInfo[] sourceFiles = source.GetFiles();for(int i = 0; i < sourceFiles.Length; ++i)list.Add(new TDirFile(false, (relative == "" ? "" : (relative + "/")) + sourceFiles[i].Name));DirectoryInfo[] sourceDirectories = source.GetDirectories();for(int j = 0; j < sourceDirectories.Length; ++j){list.Add(new TDirFile(true, (relative == "" ? "" : (relative + "/")) + sourceDirectories[j].Name));}for(int j = 0; j < sourceDirectories.Length; ++j){GetDirFile(SourceDirectory + "/" + sourceDirectories[j].Name, (relative == "" ? "" : (relative + "/")) + sourceDirectories[j].Name, list);}}/// <summary>/// 将路径的第一个和最后一个//去掉/// </summary>/// <param name="path"></param>/// <returns></returns>public static string FormatPath(string path){if (path[0] == '/' || path[0] == '//'){path = path.Substring(1, path.Length - 1);}if (path[path.Length - 1] == '/' || path[path.Length - 1] == '//'){path = path.Substring(0, path.Length - 1);}return path;}public static string GetPath(int id){string ret = "";string temp = id.ToString();if (temp.Length % 2 == 1)temp = "0" + temp;for (int i = 0; i < temp.Length; i += 2){ret = ret +temp.Substring(i,2) + "/";}return ret;}public static void RemoveReadOnlyAttr(string file){try{if (File.Exists(file))File.SetAttributes(file, FileAttributes.Normal);}catch{}}public static string FormatDate(DateTime date){int y,m,d,h,mi,s,z;y = date.Year;m = date.Month;d = date.Day;h = date.Hour;mi = date.Minute;s = date.Second;z = date.Millisecond;return string .Format("{0:0000}{1:00}{2:00}{3:00}{4:00}{5:00}{6:000}", new object[]{y,m,d,h,mi,s,z});}public static string FormatDate(){return FormatDate(DateTime.Now);}/// <summary>/// 截止指定长度的字符串/// </summary>/// <param name="inputString">字符串</param>/// <param name="len">长度</param>/// <returns>返回截止后的字符串</returns>public static string SubStr(string inputString,int len){CharEnumerator ce = inputString.GetEnumerator();int length = 0;string result = "";while(ce.MoveNext()){if (length >= len)break;switch(Char.GetUnicodeCategory(ce.Current)){case UnicodeCategory.LetterNumber:length++;break;case UnicodeCategory.OtherLetter:length += 2;break;default:length += ce.Current > 255 ? 2 : 1;break;}result += ce.Current;}return result.Length == inputString.Length ? result : result + "...";}public static string GetConstellation(string birthday){return GetConstellation(Convert.ToDateTime(birthday));}/// <summary>/// 得到星座序列,从白羊(3.21)开始/// </summary>public static string GetConstellation(DateTime birthday){string tmpstr = birthday.ToString("MM-dd");string str = "";if ((tmpstr.CompareTo("03-21")>=0) & (tmpstr.CompareTo("04-19")<=0)){str = "1";}if ((tmpstr.CompareTo("04-20")>=0) & (tmpstr.CompareTo("05-20")<=0)){str = "2";}if ((tmpstr.CompareTo("05-21")>=0) & (tmpstr.CompareTo("06-21")<=0)){str = "3";}if ((tmpstr.CompareTo("06-22")>=0) & (tmpstr.CompareTo("07-22")<=0)){str = "4";}if ((tmpstr.CompareTo("07-23")>=0) & (tmpstr.CompareTo("08-22")<=0)){str = "5";}if ((tmpstr.CompareTo("08-23")>=0) & (tmpstr.CompareTo("09-22")<=0)){str = "6";}if ((tmpstr.CompareTo("09-23")>=0) & (tmpstr.CompareTo("10-23")<=0)){str = "7";}if ((tmpstr.CompareTo("10-24")>=0) & (tmpstr.CompareTo("11-22")<=0)){str = "8";}if ((tmpstr.CompareTo("11-23")>=0) & (tmpstr.CompareTo("12-21")<=0)){str = "9";}if ((tmpstr.CompareTo("12-22")>=0) & (tmpstr.CompareTo("12-31")<=0)){str = "10";}if ((tmpstr.CompareTo("01-01")>=0) & (tmpstr.CompareTo("01-19")<=0)){str = "10";}if ((tmpstr.CompareTo("01-20")>=0) & (tmpstr.CompareTo("02-18")<=0)){str = "11";}if ((tmpstr.CompareTo("02-19")>=0) & (tmpstr.CompareTo("03-20")<=0)){str = "12";}return str;}/// <summary>/// HTML编码/// </summary>/// <param name="content">要进行编码的字符串</param>/// <returns>返回编码后的字符串</returns>public static string HTMLEncode(string content){content = HTMLEncodeLite(content);if ((content != null) && (content != String.Empty)){content = content.Replace("/r/n","/n");content = content.Replace("/n","<br/>");}return content;}/// <summary>/// HTML编码简化版/// </summary>/// <param name="content">要进行编码的字符串</param>/// <returns>返回编码后的字符串</returns>public static string HTMLEncodeLite(string content){if ((content != null) && (content != String.Empty)){content = content.Replace("&","&");content = content.Replace("<","<");content = content.Replace(">",">");content = content.Replace("'","'");//单引号content = content.Replace("/"",""");//双引号}return content;}/// <summary>/// HTML反编码/// </summary>/// <param name="content">要进行反编码的字符串</param>/// <returns>返回反编码后的字符串</returns>public static string HTMLDecode(string content){if ((content != null) && (content != String.Empty)){content = content.Replace("<","<");content = content.Replace(">",">");content = content.Replace("'","'");content = content.Replace(""","/"");content = content.Replace("&","&");Regex.Replace(content, "<br//s*/>", "/r/n", RegexOptions.IgnoreCase);}return content;}public static void DeleteTree(string root){ Directory.Delete(root, true); }/// <summary>/// 注意：Content应该是允许包含HTML代码的字符串/// </summary>/// <param name="Content"></param>/// <returns></returns>public static string GetSummery(string Content){return GetSummery(Content, 200);}/// <summary>/// 注意：Content应该是允许包含HTML代码的字符串/// </summary>/// <param name="Content"></param>/// <param name="SummeryLen"></param>/// <returns></returns>public static string GetSummery(string Content, int SummeryLen){string Summery = "";if (Content.Length > SummeryLen){bool find = false;for (int j = SummeryLen; j < Content.Length; j++){if (Content[j] == '<'){Summery = Content.Substring(0, SummeryLen);find = true;break;}else if (Content[j] == '>'){Summery = Content.Substring(0, j + 1);find = true;break;}}if (!find)Summery = Content.Substring(0, SummeryLen);int count = 0;int mostright = Summery.Length;for (int i = 0; i < Summery.Length - 7; i++){if (Summery.Substring(i, 6).Equals("<TABLE")){if (count == 0)mostright = i;count++;}else if (Summery.Substring(i, 7).Equals("</TABLE")){count--;if (count == 0)mostright = i + 1;}}if (count != 0){Summery = Summery.Substring(0, mostright);}else{count = 0;mostright = Summery.Length;for (int i = 0; i < Summery.Length - 8; i++){if (Summery.Substring(i, 7).Equals("<OBJECT")){if (count == 0)mostright = i;count++;}else if (Summery.Substring(i, 8).Equals("</OBJECT")){count--;if (count == 0)mostright = i + 1;}}if (count != 0){Summery = Summery.Substring(0, mostright);}else{}}Summery += "...";}else{Summery = Content;}return Summery;}/// <summary>/// 重载HTML编码截取固定长度/// </summary>/// <param name="Content">原HTML内容</param>/// <param name="SummeryLen">截取字数</param>/// <param name="SummeryEnd">截取后在末尾添加文字</param>/// <returns></returns>public static string GetSummery(string Content, int SummeryLen, string SummeryEnd){return GetSummery(Content, SummeryLen, SummeryEnd, true);}/// <summary>/// 重载HTML编码截取固定长度（内容，不包含HTML标签）/// </summary>/// <param name="Content">原HTML内容</param>/// <param name="SummeryLen">截取字节长度</param>/// <param name="SummeryEnd">截取后在末尾添加文字</param>/// <param name="IncludePic">是否包含图片</param>/// <returns></returns>public static string GetSummery(string Content, int SummeryLen, string SummeryEnd, bool IncludePic){StringBuilder result = new StringBuilder();int n = 0;char temp;bool isCode = false; //是不是HTML代码bool isHTML = false; //是不是HTML特殊字符,如 for (int i = 0; i < Content.Length; i++){temp = Content[i];if (temp == '<'){isCode = true;}else if (temp == '&'){isHTML = true;}else if (temp == '>' && isCode){n = n - 1;isCode = false;}else if (temp == ';' && isHTML)isHTML = false;if (!isCode && !isHTML)n += temp > 255 ? 2 : 1;result.Append(temp);if (n >= SummeryLen){result.Append(SummeryEnd);break;}}//取出截取字符串中的HTML标记//string temp_result = result.ToString().Replace("(>)[^<>]*(<?)", "$1$2");string temp_result = Regex.Replace(result.ToString(), "(>)[^<>]*(<?)", "$1$2");//去掉不需要结素标记的HTML标记//temp_result = temp_result.Replace("</?(AREA|BASE|BASEFONT|BODY|BR|COL|COLGROUP|DD|DT|FRAME|HEAD|HR|HTML|IMG|INPUT|ISINDEX|LI|LINK|META|OPTION|P|PARAM|TBODY|TD|TFOOT|TH|THEAD|TR|area|base|basefont|body|br|col|colgroup|dd|dt|frame|head|hr|html|img|input|isindex|li|link|meta|option|p|param|tbody|td|tfoot|th|thead|tr)[^<>]*/?>", "");temp_result = Regex.Replace(temp_result, "</?(AREA|BASE|BASEFONT|BODY|BR|COL|COLGROUP|DD|DT|FRAME|HEAD|HR|HTML|IMG|INPUT|ISINDEX|LI|LINK|META|OPTION|PARAM|TBODY|TD|TFOOT|TH|THEAD|TR|area|base|basefont|body|br|col|colgroup|dd|dt|frame|head|hr|html|img|input|isindex|li|link|meta|option|param|tbody|td|tfoot|th|thead|tr)[^<>]*/?>", "");//去掉成对的HTML标记//temp_result=temp_result.Replace(@"<([a-zA-Z]+)[^<>]*>(.*?)<//1>","$2");string temp_HTML = temp_result;//此正则替换无法做到递归替换，无法处理嵌套HTML元素。//这里加一个循环来处理嵌套HTML元素问题。By马克维，08-01-07do{temp_result = temp_HTML;temp_HTML= Regex.Replace(temp_result, @"<([a-zA-Z]+)[^<>]*>(.*?)<//1>","$2");}while(temp_HTML != temp_result);//用正则表达式取出标记string p = ("<([a-zA-Z]+)[^<>]*>");MatchCollection m = Regex.Matches((temp_result), p);ArrayList endHTML = new ArrayList();for(int i = 0; i < m.Count; i++){endHTML.Add(m[i].Result("$1"));}//补全不成对的HTML标记for (int i = endHTML.Count - 1; i >= 0; i--){result.Append("</");result.Append(endHTML[i]);result.Append(">");}string ret = result.ToString();if(!IncludePic){ret = Regex.Replace(ret, "<(IMG|img)[^<>]*/?>", "");ret = Regex.Replace(ret, "<(INPUT|input)[^<>]*(TYPE|type)=/"(IMAGE|image)/"[^<>]*/?>", "");}return ret;}/// <summary>/// 截取固定长度的字符串（去除HTML标签）/// </summary>/// <param name="html">输入字符串</param>/// <param name="count">截取长度,负数为不截取（－1）</param>/// <param name="eclipse">截取后结尾字符</param>/// <param name="replaceCRLN">是否替换换行</param>public static string GetSummaryWithoutHTML(string html, int count, string eclipse, bool replaceCRLN){html = Regex.Replace(html, @"<[/s]*script[^>]*?>[/s/S]*?<[/s]*?//[/s]*?script[/s]*?>", "", RegexOptions.IgnoreCase | RegexOptions.Singleline);html = Regex.Replace(html, @"<[/s]*style[^>]*?>[/s/S]*?<[/s]*?//[/s]*?style[/s]*?>", "", RegexOptions.IgnoreCase | RegexOptions.Singleline);html = Regex.Replace(html, @"(/40*<br[/40]*/?>)+", "/r/n", RegexOptions.IgnoreCase);if(replaceCRLN)html = Regex.Replace(html, @"(/r/n|/n)+", " ");html = Regex.Replace(html, @"/40+", " ");bool tag = false;bool tagDef = false;bool attr1 = false;bool attr2 = false;bool entity = false;bool space = false;//bool script = false;//bool style = false;string temp = "";StringBuilder sb = new StringBuilder();int j = 0;for (int i = 0; i < html.Length; i++){if (count > 0 && j >= count && html.Length - i > eclipse.Length){sb.Append(eclipse);break;}if (html[i] == ' ' || html[i] == '/t'){if (entity){entity = false;i = i - temp.Length - 1;sb.Append("&");j++;continue;}if (tagDef && temp.Length > 0)tagDef = false;if (!tag && !space){sb.Append(' ');j++;}space = true;continue;}elsespace = false;switch (html[i]){case '<':if (entity){entity = false;i = i - temp.Length - 1;sb.Append("&");j++;continue;}if (!tag){tag = true;tagDef = true;temp = "";}else{sb.Append("<");j++;}break;case '/':if (entity){entity = false;i = i - temp.Length - 1;sb.Append("&");j++;continue;}if (tag && !attr1 && !attr2 && temp.Length > 0)tagDef = false;else if (!tag){sb.Append('/');j++;}break;case '>':if (entity){entity = false;i = i - temp.Length - 1;sb.Append("&");j++;continue;}if (tag && !attr1 && !attr2){switch (temp.ToLower()){case "br":sb.Append(" ");j++;break;/*改用正则表达式提前处理case "script":script = !script;break;case "style":style = !style;break;*/}tag = false;tagDef = false;}else if (!tag){sb.Append(">");j++;}break;case '/'':if (entity){entity = false;i = i - temp.Length - 1;sb.Append("&");j++;continue;}if (tag && !attr2)attr1 = !attr1;if (!tag){sb.Append('/'');j++;}break;case '"':if (entity){entity = false;i = i - temp.Length - 1;sb.Append("&");j++;continue;}if (tag && !attr1)attr2 = !attr2;if (!tag){sb.Append(""");j++;}break;case '&':if (entity){entity = false;i = i - temp.Length - 1;sb.Append("&");j++;continue;}if (!tag){entity = true;temp = "";}if (tagDef)temp += html[i];break;case ';':if (entity){entity = false;if (temp.Length > 0){sb.Append('&');sb.Append(temp);}elsesb.Append("&");sb.Append(';');j++;}else if (!tag){sb.Append(';');j++;}break;default:if (tagDef)temp += html[i];if (entity){temp += html[i];if (temp.Length > 6 || html[i] == '/r' || html[i] == '/n'){entity = false;i = i - temp.Length;sb.Append("&");j++;continue;}}if (!tag && !entity){sb.Append(html[i]);if (html[i] == '/r' && html.Length - 1 > i && html[i + 1] == '/n')j += 0;elsej += html[i] > 255 ? 2 : 1;}break;}}if (entity && j < count){sb.Append("&");if (temp.Length > 0)sb.Append(temp);}return sb.ToString();}/// <summary>/// 获取HTML编码中的第一张图片地址/// </summary>/// <param name="Content">HTML编码内容</param>/// <returns></returns>public static string GetFirstPicAddr(string Content){string Patten = "<((IMG|img)|((INPUT|input)[^<>]*(TYPE|type)=/"(IMAGE|image)/"))[^<>]*(SRC|src)=/"(.*?)/"[^<>]*/?>";//System.Text.RegularExpressions.Match m = Regex.Match(Content, Patten);MatchCollection m = Regex.Matches(Content, Patten);string ret = "";for(int i = 0; i < m.Count; i++){if(m[i].Success){if(m[i].Result("$8").IndexOf("images/smiley") < 0){ret = m[i].Result("$8");break;}}}//if(m.Success)//ret = m.Result("$8");return ret;}/// <summary>/// 验证是否是非负整数/// </summary>/// <param name="str"></param>/// <returns></returns>public static bool IsInt(string str){if (str != null && str != string.Empty)return Regex.IsMatch(str, @"^/d+$");return false;}/// <summary>/// 从文件中读出字符串/// </summary>/// <param name="filename"></param>/// <returns></returns>public static string GetStringFromFile(string filename){string strInput;StreamReader sr = new StreamReader(filename, Encoding.GetEncoding(936));try{strInput = sr.ReadToEnd();}finally{sr.Close();}return strInput;}/// <summary>/// 获得文件名，无扩展名/// </summary>public static string GetFileNameNoEx(string filename){filename = Path.ChangeExtension(filename, "");return filename.Remove(filename.Length - 1, 1);}/// <summary>/// 获取HTML内容（博客文章等）的实际字数/// 暂时未将英文单词区分（目前一个英文字母算做一字儿）/// </summary>/// <param name="temp"></param>/// <returns></returns>public static int GetContentLength(string temp){temp = Regex.Replace(temp, @"//r//n", "");MatchCollection mc = Regex.Matches(temp, ">([^<>]*)<?");StringBuilder sb = new StringBuilder();if(mc.Count > 0){for(int i=0; i<mc.Count; i++){sb.Append(mc[i].Result("$1").ToString());}temp = sb.ToString();temp = Regex.Replace(temp, @"<", "<");temp = Regex.Replace(temp, @">", ">");temp = Regex.Replace(temp, @""", "/"");temp = Regex.Replace(temp, @"<(?:[a-zA-Z/]+)[^<>]*>", "的");temp = Regex.Replace(temp, @"/s| ", "");}return temp.Length;}/// <summary>/// 获取0到某值范围内的指定数量的随机数数组/// </summary>/// <param name="count">获取数量</param>/// <param name="libcount">样本库最大值</param>/// <returns></returns>public static int[] GetRandomList(int count, int libcount){if(libcount <= 0 || count > libcount)return null;int[] Lib = new int[libcount];int[] ret = new int[count];for(int i = 0; i < libcount; i++){Lib[i] = i;}Random rd = new Random();int temp;int idx;for(int i = 0; i < count; i++){idx = rd.Next(0, libcount - 1);temp = Lib[idx];Lib[idx] = Lib[i];Lib[i] = temp;}for(int i = 0; i < count; i++){ret[i] = Lib[i];}return ret;}/// <summary>/// 将http://,https://,www,ftp://开头的替换为<a></a>/// </summary>/// <param name="content"></param>/// <returns></returns>public static string ReplaceLink(string content){string temp = content;temp = Regex.Replace(temp, @"((www/.|https://www|http://www|ftp://www|https://|http://|ftp://)[a-zA-Z0-9+=%?&#_/:/./;/-///|@!~$]+)", "<a href="$1" mce_href="$1" style="text-decoration:underline" mce_style="text-decoration:underline" target='_blank'>$1</a>", RegexOptions.IgnoreCase);temp = Regex.Replace(temp, @"href='(www[a-zA-Z0-9+=%?&#_/:/./;/-///|@!~$]+)'?", "href='http://$1'", RegexOptions.IgnoreCase);return temp;}/// <summary>/// 自动检测URL链接/// </summary>public static string AutoDetectLink(string content){content = Regex.Replace(content, @"((ht|f)tps?:////|www/.)([a-zA-Z0-9_-]+/.)+[a-zA-Z0-9_:-]+(//[a-zA-Z0-9_.//?%#&;=+-~]*)*", "<a target='_blank' href="$0" mce_href="$0">$0</a>");return Regex.Replace(content, "(href=')(www[.])", "$1http://$2");}}}