Merge branch 'master' of http://www.scserverddns.top:13000/sc/SunlightCentralizedControlManagement

UserClass/ClsLock.cs

@@ -5,7 +5,7 @@ using System.Text;
 using System.Threading;
 using System.Threading.Tasks;
 
-namespace DyeingComputer.UserClass
+namespace SunlightCentralizedControlManagement_SCCM_.UserClass
 {
     /// <summary>
     /// 使用using代替lock操作的对象，可指定写入和读取锁定模式

UserClass/SqliteHelper.cs

@@ -0,0 +1,686 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Data;
+using System.IO;
+using System.Data.Common;
+using System.Windows.Media.Animation;
+using System.Data.SQLite;
+using System.Windows.Shapes;
+using System.Drawing;
+
+
+namespace SunlightCentralizedControlManagement_SCCM_.UserClass
+{
+    public class SqliteHelper
+    {
+
+        public class SQLiteHelper
+        {
+            #region 字段
+
+            /// <summary>
+            /// 事务的基类
+            /// </summary>
+            private DbTransaction DBtrans;
+            /// <summary>
+            /// 使用静态变量字典解决多线程实例本类，实现一个数据库对应一个clslock
+            /// </summary>
+            private static readonly Dictionary<string, ClsLock> RWL = new Dictionary<string, ClsLock>();
+            /// <summary>
+            /// 数据库地址
+            /// </summary>
+            private readonly string mdataFile;
+            /// <summary>
+            /// 数据库密码
+            /// </summary>
+            private readonly string mPassWord;
+            private readonly string LockName = null;
+            /// <summary>
+            /// 数据库连接定义
+            /// </summary>
+            private SQLiteConnection mConn;
+
+            #endregion
+
+            #region 构造函数
+
+            /// <summary>
+            /// 根据数据库地址初始化
+            /// </summary>
+            /// <param name="dataFile">数据库地址</param>
+            public SQLiteHelper(string dataFile)
+            {
+                this.mdataFile = dataFile ?? throw new ArgumentNullException("dataFile=null");
+                //this.mdataFile = AppDomain.CurrentDomain.BaseDirectory + dataFile;
+                this.mdataFile = dataFile;
+                if (!RWL.ContainsKey(dataFile))
+                {
+                    LockName = dataFile;
+                    RWL.Add(dataFile, new ClsLock());
+                }
+            }
+
+            /// <summary>
+            /// 使用密码打开数据库
+            /// </summary>
+            /// <param name="dataFile">数据库地址</param>
+            /// <param name="PassWord">数据库密码</param>
+            public SQLiteHelper(string dataFile, string PassWord)
+            {
+                this.mdataFile = dataFile ?? throw new ArgumentNullException("dataFile is null");
+                this.mPassWord = PassWord ?? throw new ArgumentNullException("PassWord is null");
+                //this.mdataFile = AppDomain.CurrentDomain.BaseDirectory + dataFile;
+                this.mdataFile = dataFile;
+                if (!RWL.ContainsKey(dataFile))
+                {
+                    LockName = dataFile;
+                    RWL.Add(dataFile, new ClsLock());
+                }
+            }
+
+            #endregion
+
+            #region 打开/关闭 数据库
+
+            /// <summary>  
+            /// 打开 SQLiteManager 使用的数据库连接  
+            /// </summary>  
+            public void Open()
+            {
+                if (string.IsNullOrWhiteSpace(mPassWord))
+                {
+                    mConn = OpenConnection(this.mdataFile);
+                }
+                else
+                {
+                    mConn = OpenConnection(this.mdataFile, mPassWord);
+                }
+                Console.WriteLine("The database was opened successfully");
+            }
+
+            /// <summary>
+            /// 关闭连接
+            /// </summary>
+            public void Close()
+            {
+                if (this.mConn != null)
+                {
+                    try
+                    {
+                        this.mConn.Close();
+                        if (RWL.ContainsKey(LockName))
+                        {
+                            RWL.Remove(LockName);
+                        }
+                    }
+                    catch
+                    {
+                        Console.WriteLine("Shutdown failed");
+                    }
+                }
+                Console.WriteLine("The database was shut down successfully");
+            }
+
+            #endregion
+
+            #region 事务
+
+            /// <summary>
+            /// 开始事务
+            /// </summary>
+            public void BeginTrain()
+            {
+                EnsureConnection();
+                DBtrans = mConn.BeginTransaction();
+            }
+
+            /// <summary>
+            /// 提交事务
+            /// </summary>
+            public void DBCommit()
+            {
+                try
+                {
+                    DBtrans.Commit();
+                }
+                catch (Exception)
+                {
+                    DBtrans.Rollback();
+                }
+            }
+
+            #endregion
+
+            #region 工具
+
+            /// <summary>  
+            /// 打开一个SQLite数据库文件，如果文件不存在，则创建（无密码）
+            /// </summary>  
+            /// <param name="dataFile"></param>  
+            /// <returns>SQLiteConnection 类</returns>  
+            private SQLiteConnection OpenConnection(string dataFile)
+            {
+                if (dataFile == null)
+                {
+                    throw new ArgumentNullException("dataFiledataFile=null");
+                }
+                if (!File.Exists(dataFile))
+                {
+                    SQLiteConnection.CreateFile(dataFile);
+                }
+                SQLiteConnection conn = new SQLiteConnection();
+                SQLiteConnectionStringBuilder conStr = new SQLiteConnectionStringBuilder
+                {
+                    DataSource = dataFile
+                };
+                conn.ConnectionString = conStr.ToString();
+                conn.Open();
+                return conn;
+            }
+
+            /// <summary>  
+            /// 打开一个SQLite数据库文件，如果文件不存在，则创建（有密码）
+            /// </summary>  
+            /// <param name="dataFile"></param>  
+            /// <param name="Password"></param>
+            /// <returns>SQLiteConnection 类</returns>  
+            private SQLiteConnection OpenConnection(string dataFile, string Password)
+            {
+                if (dataFile == null)
+                {
+                    throw new ArgumentNullException("dataFile=null");
+                }
+                if (!File.Exists(Convert.ToString(dataFile)))
+                {
+                    SQLiteConnection.CreateFile(dataFile);
+                }
+                try
+                {
+                    SQLiteConnection conn = new SQLiteConnection();
+                    SQLiteConnectionStringBuilder conStr = new SQLiteConnectionStringBuilder
+                    {
+                        DataSource = dataFile,
+                        Password = Password
+                    };
+                    conn.ConnectionString = conStr.ToString();
+                    conn.Open();
+                    return conn;
+                }
+                catch (Exception)
+                {
+                    return null;
+                }
+            }
+
+            /// <summary>  
+            /// 读取 或 设置 SQLiteManager 使用的数据库连接  
+            /// </summary>  
+            public SQLiteConnection Connection
+            {
+                get
+                {
+                    return mConn;
+                }
+                private set
+                {
+                    mConn = value ?? throw new ArgumentNullException();
+                }
+            }
+
+            /// <summary>
+            /// 确保数据库是连接状态
+            /// </summary>
+            /// <exception cref="Exception"></exception>
+            protected void EnsureConnection()
+            {
+                if (this.mConn == null)
+                {
+                    throw new Exception("SQLiteManager.Connection=null");
+                }
+                if (mConn.State != ConnectionState.Open)
+                {
+                    mConn.Open();
+                }
+            }
+
+            /// <summary>
+            /// 获取数据库文件的路径
+            /// </summary>
+            /// <returns></returns>
+            public string GetDataFile()
+            {
+                return this.mdataFile;
+            }
+
+            /// <summary>  
+            /// 判断表 table 是否存在  
+            /// </summary>  
+            /// <param name="table"></param>  
+            /// <returns>存在返回true，否则返回false</returns>  
+            public bool TableExists(string table)
+            {
+                if (table == null)
+                {
+                    throw new ArgumentNullException("table=null");
+                }
+                EnsureConnection();
+                SQLiteDataReader reader = ExecuteReader("SELECT count(*) as c FROM sqlite_master WHERE type='table' AND name=@tableName ", new SQLiteParameter[] { new SQLiteParameter("tableName", table) });
+                if (reader == null)
+                {
+                    return false;
+                }
+                reader.Read();
+                int c = reader.GetInt32(0);
+                reader.Close();
+                reader.Dispose();
+                //return false;  
+                return c == 1;
+            }
+
+            /// <summary>
+            /// VACUUM 命令（通过复制主数据库中的内容到一个临时数据库文件，然后清空主数据库，并从副本中重新载入原始的数据库文件）
+            /// </summary>
+            /// <returns></returns>
+            public bool Vacuum()
+            {
+                try
+                {
+                    using (SQLiteCommand Command = new SQLiteCommand("VACUUM", Connection))
+                    {
+                        Command.ExecuteNonQuery();
+                    }
+                    return true;
+                }
+                catch (System.Data.SQLite.SQLiteException)
+                {
+                    return false;
+                }
+            }
+
+            #endregion
+
+            #region 执行SQL
+
+            /// <summary>
+            /// 执行SQL, 并返回 SQLiteDataReader 对象结果 
+            /// </summary>  
+            /// <param name="sql"></param>
+            /// <param name="paramArr">null 表示无参数</param>
+            /// <returns></returns>  
+            public SQLiteDataReader ExecuteReader(string sql, SQLiteParameter[] paramArr)
+            {
+                if (sql == null)
+                {
+                    throw new ArgumentNullException("sql=null");
+                }
+                EnsureConnection();
+                using (RWL[LockName].Read())
+                {
+                    using (SQLiteCommand cmd = new SQLiteCommand(sql, Connection))
+                    {
+                        if (paramArr != null)
+                        {
+                            cmd.Parameters.AddRange(paramArr);
+                        }
+                        try
+                        {
+                            SQLiteDataReader reader = cmd.ExecuteReader();
+                            cmd.Parameters.Clear();
+                            return reader;
+                        }
+                        catch (Exception)
+                        {
+                            return null;
+                        }
+                    }
+                }
+            }
+
+            /// <summary>
+            /// 执行查询，并返回dataset对象
+            /// </summary>
+            /// <param name="sql">SQL查询语句</param>
+            /// <param name="paramArr">参数数组</param>
+            /// <returns></returns>
+            public DataSet ExecuteDataSet(string sql, SQLiteParameter[] paramArr)
+            {
+                if (sql == null)
+                {
+                    throw new ArgumentNullException("sql=null");
+                }
+                this.EnsureConnection();
+                using (RWL[LockName].Read())
+                {
+                    using (SQLiteCommand cmd = new SQLiteCommand(sql, this.Connection))
+                    {
+                        if (paramArr != null)
+                        {
+                            cmd.Parameters.AddRange(paramArr);
+                        }
+                        try
+                        {
+                            SQLiteDataAdapter da = new SQLiteDataAdapter();
+                            DataSet ds = new DataSet();
+                            da.SelectCommand = cmd;
+                            da.Fill(ds);
+                            cmd.Parameters.Clear();
+                            da.Dispose();
+                            return ds;
+                        }
+                        catch (Exception)
+                        {
+                            return null;
+                        }
+                    }
+                }
+            }
+
+            /// <summary>
+            /// 执行SQL查询，并返回dataset对象。
+            /// </summary>
+            /// <param name="strTable">映射源表的名称</param>
+            /// <param name="sql">SQL语句</param>
+            /// <param name="paramArr">SQL参数数组</param>
+            /// <returns></returns>
+            public DataSet ExecuteDataSet(string strTable, string sql, SQLiteParameter[] paramArr)
+            {
+                if (sql == null)
+                {
+                    throw new ArgumentNullException("sql=null");
+                }
+                this.EnsureConnection();
+                using (RWL[LockName].Read())
+                {
+                    using (SQLiteCommand cmd = new SQLiteCommand(sql, this.Connection))
+                    {
+                        if (paramArr != null)
+                        {
+                            cmd.Parameters.AddRange(paramArr);
+                        }
+                        try
+                        {
+                            SQLiteDataAdapter da = new SQLiteDataAdapter();
+                            DataSet ds = new DataSet();
+                            da.SelectCommand = cmd;
+                            da.Fill(ds, strTable);
+                            cmd.Parameters.Clear();
+                            da.Dispose();
+                            return ds;
+                        }
+                        catch (Exception)
+                        {
+                            return null;
+                        }
+                    }
+                }
+            }
+
+            /// <summary>  
+            /// 执行SQL，返回受影响的行数，可用于执行表创建语句，paramArr == null 表示无参数
+            /// </summary>  
+            /// <param name="sql"></param>  
+            /// <returns></returns>  
+            public int ExecuteNonQuery(string sql, SQLiteParameter[] paramArr)
+            {
+                if (sql == null)
+                {
+                    throw new ArgumentNullException("sql=null");
+                }
+                this.EnsureConnection();
+                using (RWL[LockName].Read())
+                {
+                    try
+                    {
+                        using (SQLiteCommand cmd = new SQLiteCommand(sql, Connection))
+                        {
+                            if (paramArr != null)
+                            {
+                                foreach (SQLiteParameter p in paramArr)
+                                {
+                                    cmd.Parameters.Add(p);
+                                }
+                            }
+                            int c = cmd.ExecuteNonQuery();
+                            cmd.Parameters.Clear();
+                            return c;
+                        }
+                    }
+                    catch (SQLiteException)
+                    {
+                        return 0;
+                    }
+                }
+            }
+
+            /// <summary>  
+            /// 执行SQL，返回结果集第一行，如果结果集为空，那么返回空 List(List.Count=0)， 
+            /// rowWrapper = null 时，使用 WrapRowToDictionary  
+            /// </summary>  
+            /// <param name="sql"></param>  
+            /// <param name="paramArr"></param>  
+            /// <returns></returns>  
+            public object ExecuteScalar(string sql, SQLiteParameter[] paramArr)
+            {
+                if (sql == null)
+                {
+                    throw new ArgumentNullException("sql=null");
+                }
+                this.EnsureConnection();
+                using (RWL[LockName].Read())
+                {
+                    using (SQLiteCommand cmd = new SQLiteCommand(sql, Connection))
+                    {
+                        if (paramArr != null)
+                        {
+                            cmd.Parameters.AddRange(paramArr);
+                        }
+                        try
+                        {
+                            object reader = cmd.ExecuteScalar();
+                            cmd.Parameters.Clear();
+                            cmd.Dispose();
+                            return reader;
+                        }
+                        catch (Exception)
+                        {
+                            return null;
+                        }
+                    }
+                }
+            }
+
+            /// <summary>  
+            /// 查询一行记录，无结果时返回 null，conditionCol = null 时将忽略条件，直接执行 select * from table   
+            /// </summary>  
+            /// <param name="table">表名</param>  
+            /// <param name="conditionCol"></param>  
+            /// <param name="conditionVal"></param>  
+            /// <returns></returns>  
+            public object QueryOne(string table, string conditionCol, object conditionVal)
+            {
+                if (table == null)
+                {
+                    throw new ArgumentNullException("table=null");
+                }
+                this.EnsureConnection();
+                string sql = "select * from " + table;
+                if (conditionCol != null)
+                {
+                    sql += " where " + conditionCol + "=@" + conditionCol;
+                }
+                object result = ExecuteScalar(sql, new SQLiteParameter[] { new SQLiteParameter(conditionCol, conditionVal) });
+                return result;
+            }
+
+            #endregion
+
+            #region 增 删 改
+
+            /// <summary>  
+            /// 执行 insert into 语句 
+            /// </summary>  
+            /// <param name="table"></param>  
+            /// <param name="entity"></param>  
+            /// <returns></returns>  
+            public int InsertData(string table, Dictionary<string, object> entity)
+            {
+                if (table == null)
+                {
+                    throw new ArgumentNullException("table=null");
+                }
+                this.EnsureConnection();
+                string sql = BuildInsert(table, entity);
+                return this.ExecuteNonQuery(sql, BuildParamArray(entity));
+            }
+
+            /// <summary>  
+            /// 执行 update 语句，注意：如果 where = null，那么 whereParams 也为 null，
+            /// </summary>  
+            /// <param name="table">表名</param>  
+            /// <param name="entity">要修改的列名和列名的值</param>  
+            /// <param name="where">查找符合条件的列</param>  
+            /// <param name="whereParams">where条件中参数的值</param>  
+            /// <returns></returns>  
+            public int Update(string table, Dictionary<string, object> entity, string where, SQLiteParameter[] whereParams)
+            {
+                if (table == null)
+                {
+                    throw new ArgumentNullException("table=null");
+                }
+                this.EnsureConnection();
+                string sql = BuildUpdate(table, entity);
+                SQLiteParameter[] parameter = BuildParamArray(entity);
+                if (where != null)
+                {
+                    sql += " where " + where;
+                    if (whereParams != null)
+                    {
+                        SQLiteParameter[] newArr = new SQLiteParameter[(parameter.Length + whereParams.Length)];
+                        Array.Copy(parameter, newArr, parameter.Length);
+                        Array.Copy(whereParams, 0, newArr, parameter.Length, whereParams.Length);
+                        parameter = newArr;
+                    }
+                }
+                return this.ExecuteNonQuery(sql, parameter);
+            }
+
+            /// <summary>  
+            /// 执行 delete from table 语句，where不必包含'where'关键字，where = null 时将忽略 whereParams  
+            /// </summary>  
+            /// <param name="table"></param>  
+            /// <param name="where"></param>  
+            /// <param name="whereParams"></param>  
+            /// <returns></returns>  
+            public int Delete(string table, string where, SQLiteParameter[] whereParams)
+            {
+                if (table == null)
+                {
+                    throw new ArgumentNullException("table=null");
+                }
+                this.EnsureConnection();
+                string sql = "delete from " + table + " ";
+                if (where != null)
+                {
+                    sql += "where " + where;
+                }
+                return ExecuteNonQuery(sql, whereParams);
+            }
+
+            /// <summary>
+            /// 将 Dictionary 类型数据 转换为 SQLiteParameter[] 类型
+            /// </summary>
+            /// <param name="entity"></param>
+            /// <returns></returns>
+            private SQLiteParameter[] BuildParamArray(Dictionary<string, object> entity)
+            {
+                List<SQLiteParameter> list = new List<SQLiteParameter>();
+                foreach (string key in entity.Keys)
+                {
+                    list.Add(new SQLiteParameter(key, entity[key]));
+                }
+                if (list.Count == 0)
+                {
+                    return null;
+                }
+                return list.ToArray();
+            }
+
+            /// <summary>
+            /// 将 Dictionary 类型数据 转换为 插入数据 的 SQL语句
+            /// </summary>
+            /// <param name="table">表名</param>
+            /// <param name="entity">字典</param>
+            /// <returns></returns>
+            private string BuildInsert(string table, Dictionary<string, object> entity)
+            {
+                StringBuilder buf = new StringBuilder();
+                buf.Append("insert into ").Append(table);
+                buf.Append(" (");
+                foreach (string key in entity.Keys)
+                {
+                    buf.Append(key).Append(",");
+                }
+                buf.Remove(buf.Length - 1, 1); // 移除最后一个,
+                buf.Append(") ");
+                buf.Append("values(");
+                foreach (string key in entity.Keys)
+                {
+                    buf.Append("@").Append(key).Append(","); // 创建一个参数
+                }
+                buf.Remove(buf.Length - 1, 1);
+                buf.Append(") ");
+
+                return buf.ToString();
+            }
+
+            /// <summary>
+            /// 将 Dictionary 类型数据 转换为 修改数据 的 SQL语句
+            /// </summary>
+            /// <param name="table">表名</param>
+            /// <param name="entity">字典</param>
+            /// <returns></returns>
+            private string BuildUpdate(string table, Dictionary<string, object> entity)
+            {
+                StringBuilder buf = new StringBuilder();
+                buf.Append("update ").Append(table).Append(" set ");
+                foreach (string key in entity.Keys)
+                {
+                    buf.Append(key).Append("=").Append("@").Append(key).Append(",");
+                }
+                buf.Remove(buf.Length - 1, 1);
+                buf.Append(" ");
+                return buf.ToString();
+            }
+
+            /// <summary>
+            /// 将 DataTable 转换为 Dictionary 类型数据
+            /// </summary>
+            public Dictionary<string, object> DataTableToDictionary(DataTable dataTable)
+            {
+                Dictionary<string, object> result = new Dictionary<string, object>();
+                if (dataTable != null)
+                {
+                    foreach (DataRow dataRow in dataTable.Rows)
+                    {
+                        foreach (DataColumn dataColumn in dataTable.Columns)
+                        {
+                            result.Add(dataColumn.ColumnName, dataRow[dataColumn].ToString());
+                            //result = Console.WriteLine(dataRow[dataColumn].ToString());
+                            //result.Add(dataColumn.ColumnName, dataRow[dataColumn].ToString())(new RepeatDictionaryComparer());
+                        }
+                    }
+                }
+                else
+                {
+                    result = null;
+                }
+                return result;
+            }
+
+        }
+        #endregion
+    }
+}