工具类

using System.Web; using System.Data; using System; /// <summary> ///Util 的摘要说明 /// </summary> public class Util { /// <summary> /// 过滤字符串中的html代码 /// </summary> /// <param name="Str">传入字符串</param> /// <returns>过滤后的字符串</returns> public string LostHTML(string Str) { string Re_Str = ""; if (Str != null) { if (Str != string.Empty) { string Pattern = "<\\/*[^<>]*>"; Re_Str = System.Text.RegularExpressions.Regex.Replace(Str, Pattern, ""); } } return (Re_Str.Replace("\r", "")).Replace("\n", "").Replace("\t", ""); } /// <summary> /// 获取指定长度字符串 /// </summary> /// <param name="content">字符串内容</param> /// <param name="Num">字节的长度</param> /// <returns></returns> public string GetContent(object obj, int num) { string content = getToString(obj); if (content.Length < 1) { return ""; } if (System.Text.Encoding.Default.GetBytes(content).Length > num) { int i = 0; string str = ""; while (true) { string temp = str + content.Substring(i, 1); if (System.Text.Encoding.Default.GetBytes(temp).Length <= num) { str = temp; } else { return str; } i++; } } return content; } /// <summary> /// 获取指定长度字符串 /// </summary> /// <param name="content">字符串内容</param> /// <param name="num">字节的长度</param> /// <param name="endstring">是否加省略字符串</param> /// <returns>截取后的字符串</returns> public string GetContent(object obj, int num, string endstring) { string content = getToString(obj); if (content.Length < 1) { return ""; } if (endstring != null && endstring.Length > 0) { if (System.Text.Encoding.Default.GetBytes(content).Length > num) { return string.Format("{0}{1}", GetContent(content, num), endstring); } } return GetContent(content, num); } public string getJieSheng(object old, object cur) { return (getToDecimal(old) - getToDecimal(cur)).ToString("f2"); } public bool getToBool(object obj) { if (obj == null) return false; bool flag = false; bool.TryParse(obj.ToString(), out flag); return flag; } public int getToInt(object obj) { if (obj == null) return 0; int def; int.TryParse(obj.ToString(), out def); return def; } public decimal getToDecimal(object obj) { decimal def = 0; if (obj == null) return def; decimal.TryParse(obj.ToString(), out def); return def; } public int getToInt(object obj, int def) { if (obj == null) return def; int.TryParse(obj.ToString(), out def); return def; } public string getToString(object obj) { if (obj == null) return ""; string aa = obj.ToString().Trim(); if (aa.Length < 1) return ""; return aa; } public string getToString(object obj, string def) { if (obj == null) return def; string aa = obj.ToString().Trim(); if (aa.Length < 1) return def; return aa; } HttpRequest request = HttpContext.Current.Request; public int getFormInt(string obj) { return getToInt(request.Form[obj]); } public string getFormString(string obj) { return getToString(request.Form[obj]); } public int getQueryStringInt(string obj) { return getToInt(request.QueryString[obj]); } public string getQueryStringString(string obj) { return getToString(request.QueryString[obj]); } public long getQueryStringLong(string obj) { return getToLong(request.QueryString[obj]); } public long getToLong(object obj) { long def = 0; if (obj == null) return def; long.TryParse(obj.ToString(), out def); return def; } public string getBanner(DataRow[] drs, int width, int height, string tag, int len) { System.Text.StringBuilder sb = new System.Text.StringBuilder(); if (drs.Length > 0) { bool _target, _flag = tag.Length > 0 ? true : false; string _href, _title, _alt; int i = 0; foreach (DataRow dr in drs) { if (len == i && len != 0) { break; } i++; _href = getToString(dr["GetUrl"]); _title = getToString(dr["Title"]); _target = getToBool(dr["NewWindow"]); _alt = getToString(dr["Alt"]); if (_flag) { sb.AppendFormat("<{0}>", tag); } sb.AppendFormat("<a href='{0}'{1}{2}><img src='{3}'{5}{6}{4} /></a>", _href.Length > 0 ? _href : "#none", _title.Length > 0 ? " title='" + _title + "'" : "", _target ? " target='_blank'" : "", dr["Image"], _alt.Length > 0 ? " alt='" + _alt + "'" : "", width > 0 ? " width='" + width + "'" : "", height > 0 ? " height='" + height + "'" : ""); if (_flag) { sb.AppendFormat("</{0}>", tag); } } } return sb.ToString(); } public string getBanner(DataRow[] drs, int width, int height, string tag, int len, string css) { System.Text.StringBuilder sb = new System.Text.StringBuilder(); if (drs.Length > 0) { bool _target, _flag = tag.Length > 0 ? true : false; string _href, _title, _alt; int i = 0; foreach (DataRow dr in drs) { if (len == i && len != 0) { break; } i++; _href = getToString(dr["GetUrl"]); _title = getToString(dr["Title"]); _target = getToBool(dr["NewWindow"]); _alt = getToString(dr["Alt"]); if (_flag) { sb.AppendFormat("<{0}{1}>", tag, css); } sb.AppendFormat("<a href='{0}'{1}{2}><img src='{3}'{5}{6}{4} /></a>", _href.Length > 0 ? _href : "#none", _title.Length > 0 ? " title='" + _title + "'" : "", _target ? " target='_blank'" : "", dr["Image"], _alt.Length > 0 ? " alt='" + _alt + "'" : "", width > 0 ? " width='" + width + "'" : "", height > 0 ? " height='" + height + "'" : ""); if (_flag) { sb.AppendFormat("</{0}>", tag); } } } return sb.ToString(); } public string getMatchProductImg(object obj, string size) { string pic = getToString(obj); if (pic.Length > 0) { return pic.Replace("/UploadImage/Product/", "/UploadImage/Product/Thumbnail/" + size + "/"); } return "/images/nopic.jpg"; } /// <summary> /// 获得分类的上级 /// </summary> /// <param name="classid">当前分类编号</param> /// <returns>详细分类</returns> public string getParentStr(object classid) { System.Text.StringBuilder sb = new System.Text.StringBuilder(); DataTable dt = new MySqlExecute().getDT(string.Format(@"with my as ( select ClassID,ClassName,ParentID from TB_Category where ClassID={0} union all select aa.ClassID,aa.ClassName,aa.ParentID from my,TB_Category aa where my.ParentID=aa.ClassID and aa.ParentID<>0 ) select * from my", classid)); int len = dt.Rows.Count; if (len > 0) { for (int i = len - 1; i >= 0; i--) { sb.Append("<span>></span>"); if (getToLong(dt.Rows[i]["ClassID"]) == getToLong(classid)) { sb.AppendFormat("<strong>{0}</strong>", dt.Rows[i]["ClassName"]); } else { sb.AppendFormat("<a href='/product/?classid={0}'>{1}</a>", dt.Rows[i]["ClassID"], dt.Rows[i]["ClassName"]); } } } return sb.ToString(); } /// <summary> /// 获得地区的上级 /// </summary> /// <param name="classid">当前地区编号</param> /// <returns>详细地区</returns> public string getAddressStr(object classid) { System.Text.StringBuilder sb = new System.Text.StringBuilder(); DataTable dt = new MySqlExecute().getDT(string.Format(@"with my as ( select AreaID,AreaName,ParentID from TB_Area where AreaID={0} union all select aa.AreaID,aa.AreaName,aa.ParentID from my,TB_Area aa where my.ParentID=aa.AreaID and aa.ParentID<>0 ) select * from my", classid)); int len = dt.Rows.Count; if (len > 0) { for (int i = len - 1; i >= 0; i--) { sb.AppendFormat("{0}", dt.Rows[i]["AreaName"]); } } return sb.ToString(); } public string getToDateStr(object obj) { return Convert.ToDateTime(obj).ToString("MM/dd/yyyy HH:mm:ss").Replace("-", "/"); } public string getToBrStr(object obj) { return getToString(obj);//.Replace("\r\n", "<br />") } public string getSqlClear(string aa) { return aa.Replace("'", "''").Replace("[-|;|@|%]", ""); } }

转载于:https://www.cnblogs.com/daixingqing/archive/2012/11/13/2768443.html