C#NPOI.RabbitMQ.EF.Attribute.HttpRuntime.Cache.AD域.List<T>根據指定欄位去重.前端JQuery.Cache.I18N(多語言).data-xx(自定義屬性)
阿新 • • 發佈：2018-12-14
使用NPOI 操作Excel
個人使用的電腦基本預設安裝Excel 操作起來
呼叫Excel的元件便可.如果是一臺伺服器.沒有安裝Excel,也就無法呼叫Excel元件.
在此推薦第三方外掛.NPOI 支援XLS(2007)和XLSX(2012)讀寫.
using NPOI.HSSF.UserModel; using NPOI.SS.UserModel; using NPOI.XSSF.UserModel; using System; using System.Collections.Generic; using System.Configuration; using System.Data; using System.IO; namespace WebApplication1.Helper { public class ExcelHelper : IDisposable { private stringfileName = null; //檔名 private IWorkbook workbook = null; private FileStream fs = null; private bool disposed; public ExcelHelper(string fileName) { this.fileName = fileName; disposed = false; fs = new FileStream(fileName, FileMode.Open, FileAccess.Read);if (fileName.IndexOf(".xlsx") > 0) // 2007版本 workbook = new XSSFWorkbook(fs); else if (fileName.IndexOf(".xls") > 0) // 2003版本 workbook = new HSSFWorkbook(fs); } public List<string> SheetName { get { List<string> data = null; if (workbook != null) { data = new List<string>(); for (int i = 0; i < workbook.NumberOfSheets; i++) { data.Add(workbook.GetSheetAt(i).SheetName.ToString()); } } return data; } } public int SheetCount { get { return workbook == null ? 0 : workbook.NumberOfSheets; } } /// <summary> /// 將excel中的資料匯入到DataTable中 /// </summary> /// <param name="sheetName">excel工作薄sheet的名稱</param> /// <param name="isFirstRowColumn">第一行是否是DataTable的列名</param> /// <returns>返回的DataTable</returns> public DataTable ExcelToDataTable(string sheetName, bool isFirstRowColumn) { ISheet sheet = null; DataTable data = new DataTable(); int startRow = 0; try { //fs = new FileStream(fileName, FileMode.Open, FileAccess.Read); //if (fileName.IndexOf(".xlsx") > 0) // 2007版本 // workbook = new XSSFWorkbook(fs); //else if (fileName.IndexOf(".xls") > 0) // 2003版本 // workbook = new HSSFWorkbook(fs); if (sheetName != null) { sheet = workbook.GetSheet(sheetName); if (sheet == null) //如果沒有找到指定的sheetName對應的sheet，則嘗試獲取第一個sheet { sheet = workbook.GetSheetAt(0); } } else { sheet = workbook.GetSheetAt(0); } if (sheet != null) { IRow firstRow = sheet.GetRow(0); int cellCount = firstRow.LastCellNum; //一行最後一個cell的編號 即總的列數 if (isFirstRowColumn) { for (int i = firstRow.FirstCellNum; i < cellCount; ++i) { ICell cell = firstRow.GetCell(i); if (cell != null) { string cellValue = cell.StringCellValue; if (cellValue != null) { DataColumn column = new DataColumn(cellValue); data.Columns.Add(column); } } } startRow = sheet.FirstRowNum + 1; } else { startRow = sheet.FirstRowNum; } //最後一列的標號 int rowCount = sheet.LastRowNum; for (int i = startRow; i <= rowCount; ++i) { IRow row = sheet.GetRow(i); if (row == null) continue; //沒有資料的行預設是null DataRow dataRow = data.NewRow(); for (int j = row.FirstCellNum; j < cellCount; ++j) { if (row.GetCell(j) != null) //同理，沒有資料的單元格都預設是null dataRow[j] = row.GetCell(j).ToString(); } data.Rows.Add(dataRow); } } return data; } catch (Exception ex) { Console.WriteLine("Exception: " + ex.Message); return null; } } public static void CreateExcel(string projectName) { try { string fileName = $"{projectName}.xlsx"; // 檔名稱 string filePath = $"{ConfigurationManager.AppSettings["file"].ToString()}" + "\\" + fileName; // 2.解析單元格頭部，設定單元頭的中文名稱 XSSFWorkbook workbook = new XSSFWorkbook(); // 工作簿 ISheet sheet = workbook.CreateSheet("sheet"); //#region 設定Excel表格第一行的樣式 //IRow titleInfo = sheet.CreateRow(0); //ICell cellTitle = titleInfo.CreateCell(0); //cellTitle.SetCellValue("會員資訊批量錄入模板"); //ICellStyle titleStyle = workbook.CreateCellStyle(); //IFont titleFont = workbook.CreateFont(); //titleFont.FontHeightInPoints = 25; //titleFont.Boldweight = short.MaxValue;//字型加粗 //titleStyle.SetFont(titleFont); //cellTitle.CellStyle = titleStyle; //#endregion //IRow dataFields = sheet.CreateRow(2); //ICellStyle style = workbook.CreateCellStyle();//建立樣式物件 //style.Alignment = HorizontalAlignment.CENTER;//水平對齊 //style.VerticalAlignment = VerticalAlignment.CENTER;//垂直對齊 //IFont font = workbook.CreateFont(); //建立一個字型樣式物件 //font.FontName = "宋體"; //和excel裡面的字型對應 //font.Color = new HSSFColor.RED().GetIndex();//顏色參考NPOI的顏色對照表(替換掉PINK()) //font.FontHeightInPoints = 10;//字型大小 //font.Boldweight = short.MaxValue;//字型加粗 //style.SetFont(font); //將字型樣式賦給樣式物件 //sheet.SetColumnWidth(0, 20 * 256);//設定列寬 //string[] colums = { "*會員卡號", "*會員手機", "*會員姓名", "*會員等級", "會員性別", "電子郵箱", "會員狀態", "固定電話", "永久有效", "身份證號", "開卡費用", "會員地址", "備註資訊" }; //ICell Cell = null; //for (int i = 0; i < colums.Count(); i++) //{ // Cell = dataFields.CreateCell(i); // Cell.CellStyle = style; // Cell.SetCellValue(colums[i]); // sheet.SetColumnWidth(i, 17 * 256); //} //sheet.AddMergedRegion(new CellRangeAddress(0, 0, 0, colums.Count()));//合併單元格 // 4.生成檔案 FileStream file = new FileStream(filePath, FileMode.Create); workbook.Write(file); file.Close(); } catch (Exception ex) { throw ex; } } public void Dispose() { Dispose(true); GC.SuppressFinalize(this); } protected virtual void Dispose(bool disposing) { if (!this.disposed) { if (disposing) { if (fs != null) fs.Close(); } fs = null; disposed = true; } } } }
讀:
using (ExcelHelper excelHelper = new ExcelHelper(ConfigurationManager.AppSettings["ExcelFile"])) { var dataTable = excelHelper.ExcelToDataTable(null, true); }
ConfigurationManager.AppSettings["ExcelFile"]) 指檔案位置 ExcelToDataTable(null, true); sheetName指Excel中每個Sheet的名字 isFirstRowColumn指第一行是否是列名
寫：
ExcelHelper.CreateExcel(projectName); FileStream fs = new FileStream($"{ConfigurationManager.AppSettings["file"].ToString()}\\{projectName}.xlsx", FileMode.Open, FileAccess.Read); IWorkbook workbook = new XSSFWorkbook(fs); for (int i = 0; i < Sheet.Count; i++) { var Srarch = data.Where(a => a.Sheet == Sheet[i]).ToList(); DataTable dataTable = new DataTable(); dataTable.Columns.Add("Template"); dataTable.Columns.Add("Code"); dataTable.Columns.Add("ZH_CN"); dataTable.Columns.Add("Description"); dataTable.Columns.Add("EN_US"); dataTable.Columns.Add("ZH_TW"); dataTable.Columns.Add("KO"); dataTable.Columns.Add("ZH_HK"); for (int a = 0; a < Srarch.Count; a++) { DataRow row = dataTable.NewRow(); row[0] = Srarch[a].Template; row[1] = Srarch[a].Code; row[2] = Srarch[a].ZH_CN; row[3] = Srarch[a].Description; row[4] = Srarch[a].EN_US; row[5] = Srarch[a].ZH_TW; row[6] = Srarch[a].KO; row[7] = Srarch[a].ZH_HK; dataTable.Rows.Add(row); } dataTable.TableName = Sheet[i]; ISheet sheet = workbook.CreateSheet(dataTable.TableName); //表頭 IRow row2 = sheet.CreateRow(0); for (int a = 0; a < dataTable.Columns.Count; a++) { ICell cell = row2.CreateCell(a); cell.SetCellValue(dataTable.Columns[a].ColumnName); } //資料 for (int a = 0; a < dataTable.Rows.Count; a++) { IRow row1 = sheet.CreateRow(a + 1); for (int j = 0; j < dataTable.Columns.Count; j++) { ICell cell = row1.CreateCell(j); cell.SetCellValue(dataTable.Rows[a][j].ToString()); } } } MemoryStream stream = new MemoryStream(); workbook.Write(stream); var buf = stream.ToArray(); //儲存為Excel檔案 using (FileStream fs1 = new FileStream($"{ConfigurationManager.AppSettings["file"].ToString()}\\{projectName}.xlsx", FileMode.Open, FileAccess.Write)) { fs1.Write(buf, 0, buf.Length); fs1.Flush(); }
ExcelHelper.CreateExcel(projectName);
建立Excel ，projectName 是Excel名字,路徑預設是解決方案下File資料夾
兩個For迴圈，第一個迴圈是建立列名，第二個迴圈是建立列下欄位的內容
當然這只是建立Datatable
所以後面還有兩個迴圈 將每個TABLE中列名放到Excel中的Sheet.以及內容
最後fs1.Write寫入Excel
RabbitMQ
是一種應用程式對應用程式的通訊方法
舉個例子
前端站點向服務站點發起請求。一般服務站點要考慮到併發和資料總量保持執行穩定.
如果前端的請求傳送到Rabbit並做持久化.服務端隔段時間批量響應請求。就大大減少了服務站點的壓力
接下來的栗子就是A站點向Rabbit發訊息並走入佇列.然後B站點拉取訊息並回應,至於隔多久取，一次取多少條.這部分就沒做限制（計數就好）.
下面是A站點
ConnectionFactory factory = new ConnectionFactory(); factory.HostName = "127.0.0.1"; //預設埠 factory.Port = 5672; factory.UserName = "guest";//使用者名稱 factory.Password = "guest";//密碼 using (IConnection conn = factory.CreateConnection()) { using (IModel channel = conn.CreateModel()) { //在MQ上定義一個持久化佇列，如果名稱相同不會重複建立 channel.QueueDeclare("MQTest", true, false, false, null); while (true) { string message = string.Format("Message_{0}", Console.ReadLine()); byte[] buffer = Encoding.UTF8.GetBytes(message); IBasicProperties properties = channel.CreateBasicProperties(); properties.DeliveryMode = 2; channel.BasicPublish("", "MQTest", properties, buffer); Console.WriteLine("訊息傳送成功：" + message); } } }
訊息在Rabbit中.A接觸Rabbit,B接觸Rabbit.
最終是AB互動.但是過程相互不接觸
ConnectionFactory factory = new ConnectionFactory(); factory.HostName = "127.0.0.1"; //預設埠 factory.Port = 5672; factory.UserName = "guest";//使用者名稱 factory.Password = "guest";//密碼 using (IConnection conn = factory.CreateConnection()) { using (IModel channel = conn.CreateModel()) { //在MQ上定義一個持久化佇列，如果名稱相同不會重複建立 channel.QueueDeclare("MQTest", true, false, false, null); //輸入1，那如果接收一個訊息，但是沒有應答，則客戶端不會收到下一個訊息 channel.BasicQos(0, 1, false); Console.WriteLine("Listening..."); //在佇列上定義一個消費者 QueueingBasicConsumer consumer = new QueueingBasicConsumer(channel); //消費佇列，並設定應答模式為程式主動應答 channel.BasicConsume("MQTest", false, consumer); while (true) { //阻塞函式，獲取佇列中的訊息 BasicDeliverEventArgs ea = (BasicDeliverEventArgs)consumer.Queue.Dequeue(); byte[] bytes = ea.Body; string str = Encoding.UTF8.GetString(bytes); Console.WriteLine("佇列訊息:" + str.ToString()); //回覆確認 channel.BasicAck(ea.DeliveryTag, false); } } }
EF
像這個被大家用的滾瓜爛熟的框架.我這會拿出來說似乎有點小兒科.不過我就是要寫(還寫得賊簡單)
Nuget中引入EF
自定義DbContext繼承DbContext
public class HotelDbContext : DbContext { public HotelDbContext() : base("name=ConnCodeFirst") { Database.SetInitializer(new MigrateDatabaseToLatestVersion<HotelDbContext, Configuration>("ConnCodeFirst")); } public DbSet<TSM_Admin1111111111111> TSM_Admin { get; set; } }
ConnCodeFirst 是資料庫連線字串
Configuration 如下
internal sealed class Configuration : DbMigrationsConfiguration<HotelDbContext> { public Configuration() { // 自動遷移 TRUE code frist AutomaticMigrationsEnabled = true; } protected override void Seed(HotelDbContext context) { context.TSM_Admin.AddOrUpdate( p => p.UserID, new TSM_Admin1111111111111 { UserID = "1", UserName = "111" }, new TSM_Admin1111111111111 { UserID = "2", UserName = "222" }, new TSM_Admin1111111111111 { UserID = "3", UserName = "333" } ); } }
AutomaticMigrationsEnabled 意思就是找不到資料庫的時候自動建立資料庫。順帶還會建立初始資料（表和資料）。在Seed中
說真的很雞肋.用的很想罵街
接下來是EF的各種使用方式。。嬰兒教學版
new Configuration(); using (var data = new HotelDbContext()) { //查詢.全表 var a = data.TSM_Admin.ToList(); //插入 data.TSM_Admin.Add(new TSM_Admin1111111111111 { UserID = "高1030測試" }); data.SaveChanges(); //修改 var model = data.TSM_Admin.Where(b => b.UserID == "高1030測試").First(); if (model != null) { model.UserName = "高1030測試名字"; data.Entry<TSM_Admin1111111111111>(model).State = System.Data.Entity.EntityState.Modified; data.SaveChanges(); } //刪除 var delete = data.TSM_Admin.Where(b => b.UserID == "高1030測試").First(); if (delete != null) { var result = data.TSM_Admin.Where(b => b.UserID == delete.UserID).FirstOrDefault(); data.TSM_Admin.Remove(result); data.SaveChanges(); } var select = data.Database.SqlQuery<TSM_Admin1111111111111>("select * from tsm_123 ").ToList(); var insert = data.Database.ExecuteSqlCommand("insert into TSM_Admin(UserID) values('高1030測試')"); }
能用Dapper。就別用EF..
Attribute。
很多人都夢想著自定義屬於自己的屬性.那麼
我用雙手成就你的夢想
StringLength是自定義屬性的名字Attribute是必須加上去的。並且在使用中會被忽視
[AttributeUsage(AttributeTargets.Property)] public class StringLengthAttribute : Attribute { private int _maximumLength; public StringLengthAttribute(int maximumLength) { _maximumLength = maximumLength; } public int MaximumLength { get { return _maximumLength; } } }
接下來定義使用的實體
public class People { [StringLength(8)] public string Name { get; set; } [StringLength(15)] public string Description { get; set; } }
接下來定義獲取屬性內容的方法
public class ValidationModel { public void Validate(object obj) { var t = obj.GetType(); //由於我們只在Property設定了Attibute,所以先獲取Property var properties = t.GetProperties(); foreach (var property in properties) { //這裡只做一個stringlength的驗證，這裡如果要做很多驗證，需要好好設計一下,千萬不要用if elseif去連結 //會非常難於維護，類似這樣的開源專案很多，有興趣可以去看原始碼。 if (!property.IsDefined(typeof(StringLengthAttribute), false)) continue; var attributes = property.GetCustomAttributes(false); foreach (var attribute in attributes) { //這裡的MaximumLength 最好用常量去做 var maxinumLength = (int)attribute.GetType(). GetProperty("MaximumLength"). GetValue(attribute); //獲取屬性的值 var propertyValue = property.GetValue(obj) as string; if (propertyValue == null) throw new Exception("exception info");//這裡可以自定義，也可以用具體系統異常類 if (propertyValue.Length > maxinumLength) throw new Exception(string.Format("屬性{0}的值{1}的長度超過了{2}", property.Name, propertyValue, maxinumLength)); } } } }
接下來是呼叫過程
var people = new People() { Name = "qweasdzxcasdqweasdzxc", Description = "description" }; try { new ValidationModel().Validate(people); } catch (Exception ex) { Console.WriteLine(ex.Message); }
這個段子充分解釋瞭如何使用自定義Attribute
核心思想是萬物皆可supreme
HttpRuntime.Cache
開發中很多不常改動的資料。可以考慮將資料從資料庫裡取出來後的指定時間記憶體在本地記憶體中
using System; using System.Web; using System.Web.Caching; namespace Chinamoney.Core { public class CacheHelper { /// <summary> /// 獲取資料快取 /// </summary> /// <param name="cacheKey">鍵</param> public static object GetCache(string cacheKey) { var objCache = HttpRuntime.Cache.Get(cacheKey); return objCache; } /// <summary> /// 設定資料快取 /// </summary> public static void SetCache(string cacheKey, object objObject) { var objCache = HttpRuntime.Cache; objCache.Insert(cacheKey, objObject); } /// <summary> /// 設定資料快取 /// </summary> public static void SetCache(string cacheKey, object objObject, int Hours) { try { if (objObject == null) return; var objCache = HttpRuntime.Cache; //相對過期 //objCache.Insert(cacheKey, objObject, null, DateTime.MaxValue, timeout, CacheItemPriority.NotRemovable, null); //絕對過期時間 objCache.Insert(cacheKey, objObject, null, DateTime.Now.AddHours(Hours), TimeSpan.Zero, CacheItemPriority.High, null); } catch (Exception e) { Log.Logger.Log("快取寫入異常:",e); } } /// <summary> /// 移除指定資料快取 /// </summary> public static void RemoveAllCache(string cacheKey) { var cache = HttpRuntime.Cache; cache.Remove(cacheKey); } /// <summary> /// 移除全部快取 /// </summary> public static void RemoveAllCache() { var cache = HttpRuntime.Cache; var cacheEnum = cache.GetEnumerator(); while (cacheEnum.MoveNext()) { cache.Remove(cacheEnum.Key.ToString()); } } } }
讀取
CacheHelper.GetCache("cacheExtraterritorial") as List<ExtraterritorialDataEntity>;
寫入
CacheHelper.SetCache("cacheExtraterritorial", enumerable, result.Count);
清空全部快取(帶名稱清理指定快取，不帶名稱清理全部快取)
CacheHelper.RemoveAllCache("cacheExtraterritorial");
AD是微軟推出的又一款物件資料庫，
集成了許可權和員工資訊。
在此貼出AD操作的Helper
using Chinamoney.Core.Log; using System; using System.Collections; using System.DirectoryServices; namespace Chinamoney.Core { /// <summary> /// AD域 /// </summary> public class ADHelper { /// <summary> /// 獲取單個使用者 /// </summary> /// <param name="user"></param> /// <returns></returns> public static DirectoryEntry GetOne(string ldap, string user, string password, string search) { try { DirectoryEntry entry = new DirectoryEntry(ldap, user, password); DirectorySearcher searcher = new DirectorySearcher(entry); //searcher.Filter = "(&(objectClass=user)(SAMAccountName=" + search + "))";//不支援中文名.改成全域性搜尋. searcher.Filter = "(&(objectCategory=person)(objectClass=user))"; SearchResultCollection result = searcher.FindAll(); foreach (SearchResult item in result) { ICollection serach = item.Properties.PropertyNames; foreach (var model in serach) { if (model.ToString() == "name")//郵件中文名 AD Name { if (item.Properties["name"][0].ToString() == search) { return item.GetDirectoryEntry(); } } } } entry.Close(); //return null; } catch (Exception e) { Logger.Log("AD同步異常資訊.異常資訊:", e); } return null; } /// <summary> /// 獲取全部使用者 /// </summary> /// <param name="ldap"></param> /// <param name="user"></param> /// <param name="password"></param> /// <returns></returns> public static SearchResultCollection GetALL(string ldap, string user, string password) { try { using (DirectoryEntry objDE = new DirectoryEntry(ldap, user, password)) { string strFilter = "(&(objectCategory=person)(objectClass=user))"; using (DirectorySearcher objSearcher = new DirectorySearcher(objDE, strFilter)) { // strFilter = "(objectGUID=*)"; // DirectorySearcher objSearcher = new DirectorySearcher(objDE, strFilter); return objSearcher.FindAll(); } } //DirectoryEntry objDE = new DirectoryEntry(ldap, user, password);//("LDAP://cftes.org", @"cftes\admin", "[email protected]"); } catch (Exception e) { Logger.Log("AD同步異常資訊.異常資訊:", e); } return null; } /// <summary> /// 禁用指定使用者 /// </summary> /// <param name="entry"></param> public static void DisableUser(DirectoryEntry entry) { if (entry != null) { using (DirectoryEntry de = entry) { int control = (int)(de.Properties["userAccountControl"][0]); control = control | (int)(ADS_USER_FLAG_ENUM.ADS_UF_ACCOUNTDISABLE); de.Properties["userAccountControl"].Value = control; de.CommitChanges(); } } } /// <summary> /// 使用者屬性定義標誌 /// </summary> [Flags] public enum ADS_USER_FLAG_ENUM : int { /// <summary> /// 登入指令碼標誌。如果通過 ADSI LDAP 進行讀或寫操作時，該標誌失效。如果通過 ADSI WINNT，該標誌為只讀。 /// </summary> ADS_UF_SCRIPT = 0X0001, /// <summary> /// 使用者帳號禁用標誌 /// </summary> ADS_UF_ACCOUNTDISABLE = 0X0002, /// <summary> /// 主資料夾標誌 /// </summary> ADS_UF_HOMEDIR_REQUIRED = 0X0008, /// <summary> /// 過期標誌 /// </summary> ADS_UF_LOCKOUT = 0X0010, /// <summary> /// 使用者密碼不是必須的 /// </summary> ADS_UF_PASSWD_NOTREQD = 0X0020, /// <summary> /// 密碼不能更改標誌 /// </summary> ADS_UF_PASSWD_CANT_CHANGE = 0X0040, /// <summary> /// 使用可逆的加密儲存密碼 /// </summary> ADS_UF_ENCRYPTED_TEXT_PASSWORD_ALLOWED = 0X0080, /// <summary> /// 本地帳號標誌 /// </summary> ADS_UF_TEMP_DUPLICATE_ACCOUNT = 0X0100, /// <summary> /// 普通使用者的預設帳號型別 /// </summary> ADS_UF_NORMAL_ACCOUNT = 0X0200, /// <summary> /// 跨域的信任帳號標誌 /// </summary> ADS_UF_INTERDOMAIN_TRUST_ACCOUNT = 0X0800, /// <summary> /// 工作站信任帳號標誌 /// </summary> ADS_UF_WORKSTATION_TRUST_ACCOUNT = 0x1000, /// <summary> /// 伺服器信任帳號標誌 /// </summary> ADS_UF_SERVER_TRUST_ACCOUNT = 0X2000, /// <summary> /// 密碼永不過期標誌 /// </summary> ADS_UF_DONT_EXPIRE_PASSWD = 0X10000, /// <summary> /// MNS 帳號標誌 /// </summary> ADS_UF_MNS_LOGON_ACCOUNT = 0X20000, /// <summary> /// 互動式登入必須使用智慧卡 /// </summary> ADS_UF_SMARTCARD_REQUIRED = 0X40000, /// <summary> /// 當設定該標誌時，服務帳號（使用者或計算機帳號）將通過 Kerberos 委託信任 /// </summary> ADS_UF_TRUSTED_FOR_DELEGATION = 0X80000, /// <summary> /// 當設定該標誌時，即使服務帳號是通過 Kerberos 委託信任的，敏感帳號不能被委託 /// </summary> ADS_UF_NOT_DELEGATED = 0X100000, /// <summary> /// 此帳號需要 DES 加密型別 /// </summary> ADS_UF_USE_DES_KEY_ONLY = 0X200000, /// <summary> /// 不要進行 Kerberos 預身份驗證 /// </summary> ADS_UF_DONT_REQUIRE_PREAUTH = 0X4000000, /// <summary> /// 使用者密碼過期標誌 /// </summary> ADS_UF_PASSWORD_EXPIRED = 0X800000, /// <summary> /// 使用者帳號可委託標誌 /// </summary> ADS_UF_TRUSTED_TO_AUTHENTICATE_FOR_DELEGATION = 0X1000000 } } }
呼叫方式
SearchResultCollection data = ADHelper.GetALL(ldap, @name, password);
禁用賬號
ADHelper.DisableUser(ADHelper.GetOne(ldap, name, password, serach.ChinaName));
List<T>根據指定欄位去重
List<string>去重很容易Distinct就可以
如果是List<T>在實體中根據指定欄位判斷重複項.如果每次都寫迴圈是不是很累.
在此貼出幫助類
using System.Collections.Generic; namespace Chinamoney.Core { /// <summary> /// 去除重複項 /// </summary> /// <typeparam name="T"></typeparam> /// <param name="x"></param> /// <param name="y"></param> /// <returns></returns> public delegate bool EqualsComparer<T>(T x, T y); public class ComparerHelper<T> : IEqualityComparer<T> { private EqualsComparer<T> _equalsComparer; public ComparerHelper(EqualsComparer<T> equalsComparer) { this._equalsComparer = equalsComparer; } public bool Equals(T x, T y) { if (null != this._equalsComparer) return this._equalsComparer(x, y); else return false; } public int GetHashCode(T obj) { return obj.ToString().GetHashCode(); } } }
呼叫方式
rows = rows.Distinct(new ComparerHelper<ExtraterritorialDataDto>((x, y) => (null != x && null != y) && (x.senderaddress == y.senderaddress))).ToList();
拉姆達指定的欄位就是不能相同的欄位，可以根據情景變化
JqueryCache
Cookie有長度限制4m,
如果真的有大量資料要存放在客戶端Jquery.Cache 是個不錯的考慮
<script src="/webStorageCache/web-storage-cache.js"></script>
<script src="/webStorageCache/ajax-cache.js"></script>
var wsCache = new WebStorageCache();//快取物件.全域性通用
wsCache.isSupported() //當前瀏覽器是否支援快取
wsCache.clear();//清空所有快取
wsCache.set('鍵', 值, { exp: 時間.單位秒。整數 });
wsCache.get('鍵')
快取插入成功後可以再瀏覽器中看到（開發者工具）
I18N
<script src="~/Scripts/jquery-3.3.1.js"></script> <script src="~/Scripts/jquery.json.min.js"></script> <script src="~/Scripts/jquery.i18n.properties.js"></script>
HTML
<div>
<p id="text"></p>
<button onclick="switchLang()" id="lang"></button>
</div>
SCRIPT
<script>
var LANGUAGE_CODE = "en_US"; //標識語言
function loadProperties(type) {
jQuery.i18n.properties({
name: 'strings', // 資原始檔名稱
path: 'static/', // 資原始檔所在目錄路徑
mode: 'map', // 模式：變數或 Map
language: type, // 對應的語言
cache: false,
encoding: 'UTF-8',
callback: function () { // 回撥方法
$('#text').html($.i18n.prop('string_text'));
$('#lang').html($.i18n.prop('string_lang'));
}
});
}
function switchLang() {
LANGUAGE_CODE = LANGUAGE_CODE == 'zh_CN' ? 'en_US' : 'zh_CN';
loadProperties(LANGUAGE_CODE);
}
$(document).ready(function () {
LANGUAGE_CODE = jQuery.i18n.normaliseLanguageCode({}); //獲取瀏覽器的語言
loadProperties(LANGUAGE_CODE);
})
</script>
來一頓專業的BB壓壓驚
在HTML中需要設定多國語言的元素上新增ID
properties.name+ LANGUAGE_CODE 就是當前載入的語種檔案
如果需要改變語言的話
賦值 LANGUAGE_CODE
重新載入 loadProperties(LANGUAGE_CODE);
頁面無重新整理喔
完美
HTML 自定義屬性 DATA-XX
HTML允許我們自定義的屬性.都以DATA-開頭
舉個栗子
再JS中或者直接寫HTML
html += "<li class='cl' dataurl='" + data[i].Content + "' datatitle='" + data[i].Title + "' datadesc='" + data[i].Describe + "' time='" + data[i].ShowTime + "'>"; $('#courseData').append($(html));
栗子中是dataurl，datatitle,datadesc