執行完畢後 修改下 app.config中的數據庫連接串 為你本機的即可
【實例截圖】
下面為管理員登陸後的效果
管理員賬號：admin
密碼：666666
下面為普通用戶登陸後的效果：
普通用戶名：user 密碼 111111
【核心代碼】
/// /// 根據操作員名稱和密碼獲取操作員實體 /// /// 操作員名稱 /// 操作員密碼 /// public Model.Operator GetOperatorInfoByName(string name, string pwd) { //SQL命令 string sqltxt = string.Format("Select Id, OperatorName, Password, RightsList, State From Operator Where OperatorName = '{0}' And Password = '{1}'", name, pwd); //創建操作員實體 Model.Operator tmpOperator = new Model.Operator(); // 轉換數據庫存儲的 二進制數據為 Byte[] 數組 以便進而轉換為操作員權限集合 // 從配置文件讀取連接字符串 string connectionString = ConfigurationManager.ConnectionStrings["SQLSERVER"].ConnectionString; // 執行 SQL 命令 using (SqlConnection conn = new SqlConnection(connectionString)) { SqlCommand cmd = new SqlCommand(sqltxt, conn); conn.Open(); using (SqlDataReader myReader = cmd.ExecuteReader( CommandBehavior.CloseConnection | CommandBehavior.SingleResult | CommandBehavior.SingleRow)) { if (myReader.Read()) { //將數據集轉換成實體集合 tmpOperator.Id = Convert.ToInt32(myReader["Id"]); tmpOperator.ModelName = Convert.ToString(myReader["OperatorName"]); tmpOperator.Password = Convert.ToString(myReader["Password"]); tmpOperator.State = Convert.ToBoolean(myReader["State"]); // 讀取權限集合 System.Data.SqlTypes.SqlBytes bytes = myReader.GetSqlBytes(3); // 只能指定列序號 // 將流反序列化為權限集合對象 BinaryFormatter bf = new BinaryFormatter(); if (!bytes.IsNull) tmpOperator.RightsCollection = (bf.Deserialize(bytes.Stream) as Dictionary //else // throw new Exception(string.Format("操作員 [{0}] 沒有任何權限，禁止登錄！", tmpOperator.ModelName)); } else //如果沒有讀取到內容則拋出異常 throw new Exception("登錄名稱或用戶密碼不正確！"); } } // 如果操作員已經被禁用 if (!tmpOperator.State) throw new Exception(string.Format("操作員 [{0}] 已被禁用，請與管理員聯繫！", tmpOperator.ModelName)); // 返回結果 return tmpOperator; } /// /// 添加操作員 /// /// 要添加的操作員實體 /// public bool AddOperator(Model.Operator addOperator) { // 驗證密碼長度 if (addOperator.Password.Trim().Length < 6) throw new Exception("用戶密碼長度不能小於六位！"); // 轉換操作員權限集合為數據庫可存取的 Byte[] 數組 MemoryStream ms = new MemoryStream(); BinaryFormatter bf = new BinaryFormatter(); bf.Serialize(ms, addOperator.RightsCollection); byte[] rigthsByteArray = new byte[(int)(ms.Length)]; ms.Position = 0; ms.Read(rigthsByteArray, 0, (int)(ms.Length)); ms.Close(); // 拼接 SQL 命令 string sqlTxt = "Insert Into Operator (OperatorName, Password, RightsList, State) Values " "(@OperatorName, @Password, @RightsList, @State)"; // 從配置文件讀取連接字符串 string connectionString = ConfigurationManager.ConnectionStrings["SQLSERVER"].ConnectionString; // 執行 SQL 命令 using (SqlConnection conn = new SqlConnection(connectionString)) { SqlCommand cmd = new SqlCommand(sqlTxt, conn); SqlParameter prm1 = new SqlParameter("@OperatorName", SqlDbType.NVarChar, 50); prm1.Value = addOperator.ModelName; SqlParameter prm2 = new SqlParameter("@Password", SqlDbType.NVarChar, 50); prm2.Value = addOperator.Password; SqlParameter prm3 = new SqlParameter("@RightsList", SqlDbType.VarBinary, rigthsByteArray.Length, ParameterDirection.Input, false, 0 , 0, null, DataRowVersion.Current, rigthsByteArray); SqlParameter prm4 = new SqlParameter("@State", SqlDbType.Bit); prm4.Value = addOperator.State; cmd.Parameters.AddRange(new SqlParameter[] { prm1, prm2, prm3, prm4 }); conn.Open(); if (cmd.ExecuteNonQuery() >= 1) return true; else return false; } } /// /// 刪除操作員 /// /// 要刪除的操作員 ID /// public bool DeleteOperatorByID(int id) { // 刪除單個信息 SQL 命令 string sqlTxt = string.Format("Delete From Operator Where Id = {0}", id); // 創建 SQL 執行對象 DBUtility.AbstractDBProvider dbProvider = DBUtility.AbstractDBProvider.Instance(); // 執行 刪除操作 int rowsAffected; dbProvider.RunCommand(sqlTxt, out rowsAffected); if (rowsAffected >= 1) return true; else return false; } /// /// 修改操作員 /// /// 要修改的操作員實體 /// public bool ModifyOperator(Model.Operator currentOperator) { // 驗證密碼長度 if (currentOperator.Password.Trim().Length < 6) throw new Exception("用戶密碼長度不能小於六位！"); // 轉換操作員權限集合為數據庫可存取的 Byte[] 數組 MemoryStream ms = new MemoryStream(); BinaryFormatter bf = new BinaryFormatter(); bf.Serialize(ms, currentOperator.RightsCollection); byte[] rigthsByteArray = new byte[(int)(ms.Length)]; ms.Position = 0; ms.Read(rigthsByteArray, 0, (int )(ms.Length)); ms.Close(); // 拼接 SQL 命令 string sqlTxt = "Update Operator Set OperatorName = @OperatorName, " "Password = @Password, RightsList = @RightsList, State = @State Where Id = @Id"; // 從配置文件讀取連接字符串 string connectionString = ConfigurationManager.ConnectionStrings["SQLSERVER"].ConnectionString; // 執行 SQL 命令 using(SqlConnection conn = new SqlConnection(connectionString)) { SqlCommand cmd = new SqlCommand(sqlTxt, conn); SqlParameter prm1 = new SqlParameter("@OperatorName", SqlDbType.NVarChar, 50); prm1.Value = currentOperator.ModelName; SqlParameter prm2 = new SqlParameter("@Password", SqlDbType.NVarChar, 50); prm2.Value = currentOperator.Password; SqlParameter prm3 = new SqlParameter("@RightsList", SqlDbType.VarBinary, rigthsByteArray.Length, ParameterDirection.Input, false, 0, 0, null, DataRowVersion.Current, rigthsByteArray); SqlParameter prm4 = new SqlParameter("@State", SqlDbType.Bit); prm4.Value = currentOperator.State; SqlParameter prm5 = new SqlParameter("@Id", SqlDbType.Int); prm5.Value = currentOperator.Id; cmd.Parameters.AddRange(new SqlParameter[] { prm1, prm2, prm3, prm4, prm5 }); conn.Open(); if (cmd.ExecuteNonQuery() >= 1) return true; else return false; } } /// /// 獲取所有操作員信息 /// /// public Dictionary { //SQL命令 string sqltxt = "Select Id, OperatorName, Password, RightsList, State From Operator"; //創建操作員實體集合 Dictionarynew Dictionary //定義操作員實體 Model.Operator tmpOperator = null; // 轉換數據庫存儲的 二進制數據為 Byte[] 數組 以便進而轉換為操作員權限集合 // 從配置文件讀取連接字符串 string connectionString = ConfigurationManager.ConnectionStrings["SQLSERVER"].ConnectionString; // 執行 SQL 命令 using (SqlConnection conn = new SqlConnection(connectionString)) { SqlCommand cmd = new SqlCommand(sqltxt, conn); conn.Open(); using (SqlDataReader myReader = cmd.ExecuteReader( CommandBehavior.CloseConnection)) { while (myReader.Read()) { // 創建操作員實體 tmpOperator = new Model.Operator(); //將數據集轉換成實體集合 tmpOperator.Id = Convert.ToInt32(myReader["Id"]); tmpOperator.ModelName = Convert.ToString(myReader["OperatorName"]); tmpOperator.Password = Convert.ToString(myReader["Password"]); tmpOperator.State = Convert.ToBoolean(myReader["State"]); // 讀取權限集合 System.Data.SqlTypes.SqlBytes bytes = myReader.GetSqlBytes(3); // 只能指定列序號 // 將流反序列化為權限集合對象 BinaryFormatter bf = new BinaryFormatter(); if (!bytes.IsNull) tmpOperator.RightsCollection = (bf.Deserialize(bytes.Stream) as Dictionary // 添加到操作員實體集合 operatorCollection.Add(tmpOperator.ModelName, tmpOperator); } } } // 返回結果 return operatorCollection; } /// /// 根據操作員名稱校驗操作員是否存在 /// /// 操作員名稱 /// public bool CheckOperatorExist(string operatorName) { //創建查詢信息的 SQL string sqlTxt = string.Format( "Select Count(*) From Operator Where OperatorName = '{0}'", operatorName); //創建SQL執行對象 DBUtility.AbstractDBProvider dbProvider = DBUtility.AbstractDBProvider.Instance(); //執行查詢操作 int result = Convert.ToInt32(dbProvider.RunCommand(sqlTxt)); if (result >= 1) return true; else return false; } #endregion |
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