开发小工具的原因：
1、我们公司的开发是客户端用C#，服务端用Java，前后台在通讯交互的时候，会用到Oracle数据库的字段，因为服务器端有公司总经理开发的一个根据Oracle数据库的表生成的class文件，每次都是等服务端都写好了实体类以后，我们再复制、粘贴，修改字段的类型为string，因为在生成的时候，是根据Oracle数据库里的字段类型生成的java文件，但是我们在前后台通信的时候，为了不失精度的一些问题，一般都用string类型来传递，因此每次修改都比较费事。
2、VS2015在封装字段的时候，不会像2012一样，在字段的下方，而是统一的封装到一起，即字段都在上方，属性统一的在下方。
小工具界面效果：
这个是刚打开小工具的页面，连接按钮上面的几个Textbox就是连接数据库时需要的参数。
连接成功以后，把上面的连接部分隐藏掉，为了能有一个稍微大一点的空间，左侧用的是TreeView，父节点是表的Owner，子节点是表
点击左侧TreeView的父节点，则其拥有的表全部显示在右侧
点击左侧的子节点，则显示出来，这个表具体有哪些字段，要生成的VO里的字段就是指这些字段。
NameSpace是指要生成的文件的命名空间，如果不输入，则默认Test，点击生成VO，则会同时生成两个文件，在不同的文件夹下，一个带通知机制，一个不带通知机制，需要哪个是根据实际情况来定。
开发过程：
1、要连接数据库，则自然要有连接数据库的实体类
public class ConnVo : ObjectNotifyPropertyChanged { private string connIP;//ip地址 private string connPort;//端口 private string connSid;//服务器名称 private string connUser;//用户名 private string connPwd;//密码 public string ConnIP { get { return connIP; } set { connIP = value; RaisePropertyChanged("ConnIP"); } } public string ConnPort { get { return connPort; } set { connPort = value; RaisePropertyChanged("ConnPort"); } } public string ConnSid { get { return connSid; } set { connSid = value; RaisePropertyChanged("ConnSid"); } } public string ConnUser { get { return connUser; } set { connUser = value; RaisePropertyChanged("ConnUser"); } } public string ConnPwd { get { return connPwd; } set { connPwd = value; RaisePropertyChanged("ConnPwd"); } } }
2、因为是对Oracle进行操作，因此数据库连接、Select语句神马的肯定少不了，因此专门有一个数据库操作类
public class DBHelper { /// <summary> /// 声明连接 /// </summary> protected static OracleConnection Connection; /// <summary> /// 返回Connection /// </summary> /// <param name="ip">地址</param> /// <param name="port">端口</param> /// <param name="sid">服务名称</param> /// <param name="user">用户</param> /// <param name="pwd">密码</param> /// <returns>OleDbConnection</returns> private static OracleConnection ConnForOracle(string ip, string port, string sid, string user, string pwd) { string connStr; connStr = "Data Source=(DESCRIPTION = (ADDRESS_LIST= (ADDRESS = (PROTOCOL = TCP)(HOST = " + ip + ")(PORT = " + port + "))) (CONNECT_DATA = (SERVICE_NAME = " + sid + ")));User ID=" + user + ";Password=" + pwd + ";"; Connection = new OracleConnection(connStr); return Connection; } /// <summary> /// 连接数据库 /// </summary> /// <param name="ip">地址</param> /// <param name="port">端口</param> /// <param name="sid">服务名称</param> /// <param name="user">用户</param> /// <param name="pwd">密码</param> public static bool OpenConnection(string ip, string port, string sid, string user, string pwd) { ConnForOracle(ip, port, sid, user, pwd); try { //不为空 并且 是关闭或者断了的情况下，才连接 if (Connection != null && (Connection.State == System.Data.ConnectionState.Closed || Connection.State == System.Data.ConnectionState.Broken)) { Connection.Open(); ReturnOwner = Select("SELECT OWNER, TABLE_NAME FROM ALL_TAB_COMMENTS ORDER BY OWNER, TABLE_NAME"); } MessageBox.Show(Connection.State.ToString()); return true; } catch (Exception ex) { MessageBox.Show(ex.Message.ToString()); return false; } } /// <summary> /// 关闭 /// </summary> public static void CloseConnection() { //不为空 并且 是打开状态下才关闭 if (Connection != null && Connection.State == System.Data.ConnectionState.Open) { Connection.Close(); } } /// <summary> /// 查询 /// </summary> /// <param name="sql">SQL语句</param> /// <returns></returns> private static DataTable Select(string sql) { OracleCommand cmd = new OracleCommand(sql, Connection); OracleDataAdapter oda = new OracleDataAdapter(cmd); DataTable dt = new DataTable(); oda.Fill(dt); cmd.Dispose(); return dt; } /// <summary> /// 获取表名 /// </summary> /// <param name="owner">拥有者</param> public static void GetTableName(string owner) { ReturnTableName = Select("SELECT OWNER, TABLE_NAME, TABLE_TYPE, COMMENTS FROM ALL_TAB_COMMENTS WHERE OWNER='" + owner + "' ORDER BY OWNER, TABLE_TYPE, TABLE_NAME"); } /// <summary> /// 获取表内容 /// </summary> /// <param name="owner">拥有者</param> /// <param name="name">表名</param> public static void GetTableContent(string owner, string name) { ReturnTableContent = Select("SELECT COLUMN_NAME, DATA_TYPE, NULLABLE, DATA_LENGTH,(SELECT COMMENTS FROM ALL_COL_COMMENTS WHERE TABLE_NAME = '" + name + "' AND OWNER = '" + owner + "' AND COLUMN_NAME = a.COLUMN_NAME)COMMENTS FROM ALL_TAB_COLUMNS a WHERE TABLE_NAME = '" + name + "' AND OWNER = '" + owner + "' ORDER BY NULLABLE, COLUMN_NAME "); } #region 字段 /// <summary> /// 要返回拥有者 /// </summary> private static DataTable returnOwner; public static DataTable ReturnOwner { get { return returnOwner; } set { returnOwner = value; } } /// <summary> /// 返回表名 /// </summary> private static DataTable returnTableName; public static DataTable ReturnTableName { get { return returnTableName; } set { returnTableName = value; } } /// <summary> /// 返回表内容 /// </summary> private static DataTable returnTableContent; public static DataTable ReturnTableContent { get { return returnTableContent; } set { returnTableContent = value; } } #endregion }
3、为了方便显示，要写一个Oracle的实体类，就是DataGrid显示的内容
public class TableVo : ObjectNotifyPropertyChanged { private string schema;//图表 private string name;//名称 private string comments;//注解 private string type;//类型 private string nullable;//是否可空 private string dataLength;//字段长度 public string Schema { get { return schema; } set { schema = value; RaisePropertyChanged("Schema"); } } public string Name { get { return name; } set { name = value; RaisePropertyChanged("Name"); } } public string Comments { get { return comments; } set { comments = value; RaisePropertyChanged("Comments"); } } public string Type { get { return type; } set { type = value; RaisePropertyChanged("Type"); } } public string Nullable { get { return nullable; } set { nullable = value; RaisePropertyChanged("Nullable"); } } public string DataLength { get { return dataLength; } set { dataLength = value; RaisePropertyChanged("DataLength"); } } }
4、由于小工具的左侧是一个TreeView，因此有一个TreeView实体，更便于管理和修改，而且此实体中一定要有父节点和子节点，已方便区分，和后期开发
public class PropertyNodeItem:ObjectNotifyPropertyChanged { private string icon; private string parentName; private string childrenName; private bool isExpanded; private List<PropertyNodeItem> children; public string Icon { get { return icon; } set { icon = value; RaisePropertyChanged("Icon"); } } public string ParentName { get { return parentName; } set { parentName = value; RaisePropertyChanged("ParentName"); } } public string ChildrenName { get { return childrenName; } set { childrenName = value; RaisePropertyChanged("ChildrenName"); } } public bool IsExpanded { get { return isExpanded; } set { isExpanded = value; RaisePropertyChanged("IsExpanded"); } } public List<PropertyNodeItem> Children { get { return children; } set { children = value; RaisePropertyChanged("Children"); } } public PropertyNodeItem() { Children = new List<PropertyNodeItem>(); } }
5、创建CS文件，需要同时创建两个，一个带有通知机制，一个不带有通知机制，创建方法无外乎就是拼接String，然后写入文件，很简单，就是在写的过程中，注意一下格式和转义字符
public class CreateVo { //不含通知机制 private static string pathVo1 = @"Dis/VoWithoutNotify"; //包含通知机制 private static string pathVo2 = @"Dis/VoWithNotify"; /// <summary> /// 判断是否存在文件夹，不存在则创建 /// </summary> /// <returns></returns> public static bool CreateDirectory() { if (!Directory.Exists(pathVo1)) { Directory.CreateDirectory(pathVo1); } if (!Directory.Exists(pathVo2)) { Directory.CreateDirectory(pathVo2); } if (Directory.Exists(pathVo1) && Directory.Exists(pathVo2)) return true; else return false; } /// <summary> /// 生成不含通知机制的VO /// </summary> /// <param name="NameSpace">命名空间</param> /// <param name="name">文件名</param> /// <param name="listName">列表</param> public static void CreateVoNoINotifyPropertyChanged(string NameSpace,string name,List<TableVo> listName) { FileStream fs = new FileStream(pathVo1 + "/" + name + ".cs", FileMode.Create); StreamWriter sw = new StreamWriter(fs); sw.Write(CreateCSNoINotifyPropertyChanged(NameSpace,name,listName)); sw.Flush(); sw.Close(); fs.Close(); } /// <summary> /// 生成包含通知机制的VO /// </summary> /// <param name="NameSpace">命名空间</param> /// <param name="name">文件名</param> /// <param name="listName">列表</param> public static void CreateVoWithINotifyPropertyChanged(string NameSpace, string name, List<TableVo> listName) { FileStream fs = new FileStream(pathVo2 + "/" + name + ".cs", FileMode.Create); StreamWriter sw = new StreamWriter(fs); sw.Write(CreateCSWithINotifyPropertyChanged(NameSpace, name, listName)); sw.Flush(); sw.Close(); fs.Close(); } /// <summary> /// 创建不含通知机制的CS文件 /// </summary> /// <param name="NameSpace">命名空间</param> /// <param name="name">文件名</param> /// <param name="listName">列表</param> /// <returns></returns> private static string CreateCSNoINotifyPropertyChanged(string NameSpace,string name,List<TableVo> listName) { string content = ""; content += "using System; "; content += "using System.Collections.Generic; "; content += "using System.Linq; "; content += "using System.Text; "; content += " "; content += "namespace " + "" + NameSpace + "" + " "; content += "{ "; content += " public class " + "" + name + "" + " "; content += " { "; foreach(TableVo s in listName) { content += " private string " + s.Name.ToLower() + ";" + " "; content += " /// <summary> "; content += " /// " + s.Comments + " "; content += " /// </summary> "; content += " public string " + s.Name.Substring(0, 1) + s.Name.Substring(1, s.Name.Length-1).ToLower() + " "; content += " { "; content += " get "; content += " { "; content += " return " + s.Name.ToLower() + "; "; content += " } "; content += " "; content += " set "; content += " { "; content += " " + s.Name.ToLower() + " = value; "; content += " } "; content += " } "; content += " "; } content += " } "; content += "} "; return content; } /// <summary> /// 创建包含通知机制的CS文件 /// </summary> /// <param name="NameSpace">命名空间</param> /// <param name="name">文件名</param> /// <param name="listName">列表</param> /// <returns></returns> private static string CreateCSWithINotifyPropertyChanged(string NameSpace, string name, List<TableVo> listName) { string content = ""; content += "using System; "; content += "using System.Collections.Generic; "; content += "using System.Linq; "; content += "using System.Text; "; content += "using System.ComponentModel; "; content += " "; content += "namespace " + "" + NameSpace + "" + " "; content += "{ "; content += " public class " + "" + name + "" + ":INotifyPropertyChanged" + " "; content += " { "; content += " public event PropertyChangedEventHandler PropertyChanged; "; content += " public void RaisePropertyChanged(string propertyName) "; content += " { "; content += " if (PropertyChanged != null) "; content += " { "; content += " PropertyChanged(this, new PropertyChangedEventArgs(propertyName)); "; content += " } "; content += " } "; content += " "; foreach (TableVo s in listName) { content += " private string " + s.Name.ToLower() + ";" + " "; content += " /// <summary> "; content += " /// " + s.Comments + " "; content += " /// </summary> "; content += " public string " + s.Name.Substring(0, 1) + s.Name.Substring(1, s.Name.Length - 1).ToLower() + " "; content += " { "; content += " get "; content += " { "; content += " return " + s.Name.ToLower() + "; "; content += " } "; content += " "; content += " set "; content += " { "; content += " " + s.Name.ToLower() + " = value; "; content += " RaisePropertyChanged("" + s.Name.Substring(0, 1) + s.Name.Substring(1, s.Name.Length - 1).ToLower() + ""); "; content += " } "; content += " } "; content += " "; } content += " } "; content += "} "; return content; } }
6、最后就是需要VM和XAML两个文件来将这些类文件组合到一起，写具体的逻辑关系了
给TreeView写一个SelectedItemChanged事件，来保证每次选中TreeView时能够获取到当前的选中项，刚开始想写TreeView的SelectedItem属性的，可是怎么也写不出来，后来发现因为这个属性是只读的，所以只能写SelectedItemChanged事件了。
<Border Style="{StaticResource BorderStyle}" BorderThickness="2" Background="{StaticResource BlueThemePageBackground}"> <Grid> <Grid.RowDefinitions> <RowDefinition Height="40"/> <RowDefinition Height="*"/> </Grid.RowDefinitions> <Grid Grid.Row="0" Background="LightGray"> <TextBlock Text="Creator for Oracle database" FontSize="25" FontWeight="Black" Style="{StaticResource TextBlockStyle}" MouseLeftButtonDown="TextBlock_MouseLeftButtonDown"/> </Grid> <Grid Grid.Row="1" Margin="5"> <Grid.RowDefinitions> <RowDefinition Height="Auto"/> <RowDefinition Height="Auto"/> <RowDefinition Height="*"/> <RowDefinition Height="Auto"/> </Grid.RowDefinitions> <Grid Grid.Row="0" DataContext="{Binding ConnectionVo}" Visibility="{Binding DataContext.IsVisibility,RelativeSource={RelativeSource AncestorType=Window,Mode=FindAncestor}}"> <Grid.RowDefinitions> <RowDefinition Height="*"/> <RowDefinition Height="*"/> </Grid.RowDefinitions> <Grid.ColumnDefinitions> <ColumnDefinition Width="*"/> <ColumnDefinition Width="*"/> <ColumnDefinition Width="*"/> <ColumnDefinition Width="*"/> <ColumnDefinition Width="*"/> </Grid.ColumnDefinitions> <Border Grid.Row="0" Grid.Column="0" Grid.RowSpan="2" Grid.ColumnSpan="5" Style="{StaticResource BorderStyle}"/> <Line Grid.Row="0" Grid.ColumnSpan="5" Style="{StaticResource HorLineStyle}"/> <Line Grid.Column="0" Grid.RowSpan="2" Style="{StaticResource VerLineStyle}"/> <Line Grid.Column="1" Grid.RowSpan="2" Style="{StaticResource VerLineStyle}"/> <Line Grid.Column="2" Grid.RowSpan="2" Style="{StaticResource VerLineStyle}"/> <Line Grid.Column="3" Grid.RowSpan="2" Style="{StaticResource VerLineStyle}"/> <Line Grid.Column="4" Grid.RowSpan="2" Style="{StaticResource VerLineStyle}"/> <TextBlock Text="IP" Grid.Row="0" Grid.Column="0" Style="{StaticResource TextBlockStyle}"/> <TextBox Text="{Binding ConnIP}" Grid.Row="1" Grid.Column="0" HorizontalAlignment="Stretch" Style="{StaticResource TextBoxStyle}"/> <TextBlock Text="Port" Grid.Row="0" Grid.Column="1" Style="{StaticResource TextBlockStyle}"/> <TextBox Text="{Binding ConnPort}" Grid.Row="1" Grid.Column="1" HorizontalAlignment="Stretch" Style="{StaticResource TextBoxStyle}"/> <TextBlock Text="SID" Grid.Row="0" Grid.Column="2" Style="{StaticResource TextBlockStyle}"/> <TextBox Text="{Binding ConnSid}" Grid.Row="1" Grid.Column="2" HorizontalAlignment="Stretch" Style="{StaticResource TextBoxStyle}"/> <TextBlock Text="User" Grid.Row="0" Grid.Column="3" Style="{StaticResource TextBlockStyle}"/> <TextBox Text="{Binding ConnUser}" Grid.Row="1" Grid.Column="3" HorizontalAlignment="Stretch" Style="{StaticResource TextBoxStyle}"/> <TextBlock Text="PassWord" Grid.Row="0" Grid.Column="4" Style="{StaticResource TextBlockStyle}"/> <TextBox Text="{Binding ConnPwd}" Grid.Row="1" Grid.Column="4" HorizontalAlignment="Stretch" Style="{StaticResource TextBoxStyle}"/> </Grid> <Button Content="连接" Command="{Binding LinkCommand}" Grid.Row="1" Visibility="{Binding IsVisibility}" Style="{StaticResource ButtonStyleForSumbit}"/> <Grid Grid.Row="2"> <Grid.ColumnDefinitions> <ColumnDefinition Width="300"/> <ColumnDefinition Width="*"/> </Grid.ColumnDefinitions> <TreeView x:Name="tv" ItemsSource="{Binding TreeList}" BorderBrush="{StaticResource BlueThemeBordBursh}" ScrollViewer.HorizontalScrollBarVisibility="Disabled"> <TreeView.ItemContainerStyle> <Style TargetType="{x:Type TreeViewItem}"> <Setter Property="IsExpanded" Value="{Binding IsExpanded}"/> </Style> </TreeView.ItemContainerStyle> <TreeView.ItemTemplate> <HierarchicalDataTemplate ItemsSource="{Binding Children}"> <StackPanel Orientation="Horizontal"> <Image VerticalAlignment="Center" Source="{Binding Icon}" Width="18" Height="18" Margin="0,2"/> <TextBlock x:Name="tb" VerticalAlignment="Center" Text="{Binding ChildrenName}" Style="{StaticResource TextBlockStyle}"/> </StackPanel> </HierarchicalDataTemplate> </TreeView.ItemTemplate> <i:Interaction.Triggers> <i:EventTrigger EventName="SelectedItemChanged"> <Custom:EventToCommand Command="{Binding SelectChangedCommand}" CommandParameter="{Binding RelativeSource={RelativeSource Mode=FindAncestor,AncestorType=TreeView},Path=SelectedItem}"/> </i:EventTrigger> </i:Interaction.Triggers> </TreeView> <DataGrid Grid.Column="1" ItemsSource="{Binding TableNameGridList}" SelectedItem="{Binding SelectTableName}" Visibility="{Binding VisibilityName}" HorizontalAlignment="Stretch" CanUserAddRows="False" AutoGenerateColumns="False" Style="{StaticResource GreenThemeDataGridStyle}"> <DataGrid.CellStyle> <Style TargetType="DataGridCell"> <Setter Property="ToolTipService.ToolTip" Value="{Binding RelativeSource={RelativeSource Mode=Self},Path=Content.Text}"/> </Style> </DataGrid.CellStyle> <DataGrid.Columns> <DataGridTextColumn Header="Schema" Width="*" Binding="{Binding Schema,Mode=OneWay}"/> <DataGridTextColumn Header="Type" Width="*" Binding="{Binding Type,Mode=OneWay}"/> <DataGridTextColumn Header="Table Name" Width="*" Binding="{Binding Name,Mode=OneWay}"/> <DataGridTextColumn Header="Comments" Width="*" Binding="{Binding Comments,Mode=OneWay}"/> </DataGrid.Columns> </DataGrid> <DataGrid Grid.Column="1" ItemsSource="{Binding TableContentGridList}" Visibility="{Binding VisibilityContent}" HorizontalAlignment="Stretch" CanUserAddRows="False" AutoGenerateColumns="False" Style="{StaticResource GreenThemeDataGridStyle}"> <DataGrid.CellStyle> <Style TargetType="DataGridCell"> <Setter Property="ToolTipService.ToolTip" Value="{Binding RelativeSource={RelativeSource Mode=Self},Path=Content.Text}"/> </Style> </DataGrid.CellStyle> <DataGrid.Columns> <DataGridTextColumn Header="Column Name" Width="*" Binding="{Binding Name,Mode=OneWay}"/> <DataGridTextColumn Header="Column Comments" Width="*" Binding="{Binding Comments,Mode=OneWay}"/> <DataGridTextColumn Header="Type" Width="*" Binding="{Binding Type,Mode=OneWay}"/> <DataGridTextColumn Header="Nullable" Width="*" Binding="{Binding Nullable,Mode=OneWay}"/> <DataGridTextColumn Header="DataLength" Width="*" Binding="{Binding DataLength,Mode=OneWay}"/> </DataGrid.Columns> </DataGrid> </Grid> <StackPanel Grid.Row="3" HorizontalAlignment="Center" Orientation="Horizontal"> <TextBlock Text="NameSpace" FontStyle="Italic" FontWeight="Bold" Foreground="Red" Style="{StaticResource TextBlockStyle}"/> <TextBox Width="150" Text="{Binding Ns}" Style="{StaticResource TextBoxStyle}" Margin="5,0,100,0"/> <Button Content="创建VO" Command="{Binding CreateVoCommand}" CommandParameter="{Binding ElementName=tv,Path=SelectedItem}" Style="{StaticResource ButtonStyleForSumbit}" Margin="0,0,30,0"/> <Button Content="关闭" Command="{Binding CloseCommand}" Style="{StaticResource ButtonStyleForCancel}"/> </StackPanel> </Grid> </Grid> </Border>
public class MainWindowVM : ViewModelBase { public MainWindowVM() { SetConnVo(); } #region 字段 /// <summary> /// 命名空间 /// </summary> private string ns = ""; public string Ns { get { return ns; } set { ns = value; RaisePropertyChanged("Ns"); } } /// <summary> /// 连接类 /// </summary> private ConnVo connectionVo = new ConnVo(); public ConnVo ConnectionVo { get { return connectionVo; } set { connectionVo = value; RaisePropertyChanged("ConnectionVo"); } } /// <summary> /// 表 /// </summary> private TableVo table; public TableVo Table { get { return table; } set { table = value; RaisePropertyChanged("Table"); } } /// <summary> /// 左侧列表 /// </summary> private ObservableCollection<PropertyNodeItem> treeList = new ObservableCollection<PropertyNodeItem>(); public ObservableCollection<PropertyNodeItem> TreeList { get { return treeList; } set { treeList = value; RaisePropertyChanged("TreeList"); } } /// <summary> /// 原始列表 /// </summary> private List<PropertyNodeItem> orgList = new List<PropertyNodeItem>(); public List<PropertyNodeItem> OrgList { get { return orgList; } set { orgList = value; RaisePropertyChanged("OrgList"); } } /// <summary> /// 父列表 /// </summary> private List<string> ownerList = new List<string>(); public List<string> OwnerList { get { return ownerList; } set { ownerList = value; RaisePropertyChanged("OwnerList"); } } /// <summary> /// 连接成功以后，就隐藏上边的部分 /// </summary> private Visibility isVisibility = Visibility.Visible; public Visibility IsVisibility { get { return isVisibility; } set { isVisibility = value; RaisePropertyChanged("IsVisibility"); } } /// <summary> /// 表名选中项 /// </summary> private TableVo selectTableName = new TableVo(); public TableVo SelectTableName { get { return selectTableName; } set { selectTableName = value; RaisePropertyChanged("SelectTableName"); } } /// <summary> /// 表名list /// </summary> private ObservableCollection<TableVo> tableNameGridList = new ObservableCollection<TableVo>(); public ObservableCollection<TableVo> TableNameGridList { get { return tableNameGridList; } set { tableNameGridList = value; RaisePropertyChanged("TableNameGridList"); } } /// <summary> /// 表内容 /// </summary> private ObservableCollection<TableVo> tableContentGridList = new ObservableCollection<TableVo>(); public ObservableCollection<TableVo> TableContentGridList { get { return tableContentGridList; } set { tableContentGridList = value; RaisePropertyChanged("TableContentGridList"); } } /// <summary> /// 表名是否显示 /// </summary> private Visibility visibilityName = Visibility.Collapsed; public Visibility VisibilityName { get { return visibilityName; } set { visibilityName = value; RaisePropertyChanged("VisibilityName"); } } /// <summary> /// 表内容是否显示 /// </summary> private Visibility visibilityContent = Visibility.Collapsed; public Visibility VisibilityContent { get { return visibilityContent; } set { visibilityContent = value; RaisePropertyChanged("VisibilityContent"); } } #endregion #region 函数 /// <summary> /// 给连接的东西赋值 /// </summary> private void SetConnVo() { ConnectionVo.ConnIP = "*****"; ConnectionVo.ConnPort = "1521"; ConnectionVo.ConnSid = "*****"; ConnectionVo.ConnUser = "swzg"; ConnectionVo.ConnPwd = "*****"; } /// <summary> /// DataTable转换到List /// </summary> /// <param name="dt"></param> /// <returns></returns> private void DataTableToList(DataTable dt) { //获取最原始的List var orgList = (from dataTable in dt.AsEnumerable() select new PropertyNodeItem() { ParentName = dataTable["OWNER"].ToString(), ChildrenName = dataTable["TABLE_NAME"].ToString() }).ToList(); OrgList.AddRange(orgList); DataTable newdt = new DataView(dt.Columns["OWNER"].Table).ToTable(true, "OWNER");//去除重复，只留下OWNER //只获得Owner列表 var newList = (from dataTable in newdt.AsEnumerable() select dataTable["OWNER"].ToString()); OwnerList.AddRange(newList); } /// <summary> /// 给Treeview赋值 /// </summary> /// <param name="listOrg">原始列表</param> /// <param name="listNew">Own列表</param> private void SetTree(List<PropertyNodeItem> listOrg, List<string> listNew) { TreeList.Clear(); for (int i = 0; i < listNew.Count; i++) { PropertyNodeItem node = new PropertyNodeItem() { ParentName = listNew[i].ToString(), ChildrenName = listNew[i].ToString(), Icon = @"../Icon/father.ico", IsExpanded = false }; ForeachPropertyNode(node, listOrg, listNew[i].ToString()); TreeList.Add(node); } } /// <summary> /// 向父节点中添加子节点 /// </summary> /// <param name="node">节点</param> /// <param name="listOrg">原始的列表</param> /// <param name="parentName">父节点名称</param> private void ForeachPropertyNode(PropertyNodeItem node, List<PropertyNodeItem> listOrg, string parentName) { var listChildren = (from dataTable in listOrg.AsEnumerable() where dataTable.ParentName == parentName select new PropertyNodeItem() { ParentName = dataTable.ParentName.ToString(), ChildrenName = dataTable.ChildrenName.ToString(), Icon = @"../Icon/children.ico", IsExpanded = false }); node.Children.AddRange(listChildren); } /// <summary> /// 获取表名列 /// </summary> /// <param name="owner"></param> private void GetTableNameList(string owner) { TableNameGridList.Clear(); DBHelper.GetTableName(owner); var list = (from dt in DBHelper.ReturnTableName.AsEnumerable() select new TableVo() { Schema = dt["OWNER"].ToString(), Name = dt["TABLE_NAME"].ToString(), Type = dt["TABLE_TYPE"].ToString(), Comments = dt["COMMENTS"].ToString() }).ToList(); for (int i = 0; i < list.Count; i++) { TableVo tablevo = new TableVo() { Schema = list[i].Schema, Comments = list[i].Comments, Name = list[i].Name, Type = list[i].Type }; TableNameGridList.Add(tablevo); } } /// <summary> /// 获取表内容 /// </summary> /// <param name="owner"></param> /// <param name="name"></param> private void GetTableContentList(string owner, string name) { TableContentGridList.Clear(); DBHelper.GetTableContent(owner, name); var list = (from dt in DBHelper.ReturnTableContent.AsEnumerable() select new TableVo() { Name = dt["COLUMN_NAME"].ToString(), Type = dt["DATA_TYPE"].ToString(), Comments = dt["COMMENTS"].ToString(), Nullable = dt["NULLABLE"].ToString(), DataLength = dt["DATA_LENGTH"].ToString() }).ToList(); for (int i = 0; i < list.Count; i++) { TableVo tablevo = new TableVo() { Name = list[i].Name, Type = list[i].Type, Comments = list[i].Comments, Nullable = list[i].Nullable, DataLength = list[i].DataLength }; TableContentGridList.Add(tablevo); } } /// <summary> /// 获得数据库里的字段名 /// </summary> /// <returns></returns> private List<string> GetListName() { List<string> list = new List<string>(); if (TableContentGridList.Count > 0) { for (int i = 0; i < TableContentGridList.Count; i++) { list.Add(TableContentGridList[i].Name.ToLower()); } return list; } return null; } #endregion #region 按钮 /// <summary> /// 连接按钮 /// </summary> private RelayCommand linkCommand; public RelayCommand LinkCommand { get { return linkCommand = new RelayCommand(() => { if (DBHelper.OpenConnection(ConnectionVo.ConnIP, ConnectionVo.ConnPort, ConnectionVo.ConnSid, ConnectionVo.ConnUser, ConnectionVo.ConnPwd)) { DataTableToList(DBHelper.ReturnOwner); SetTree(OrgList, OwnerList); IsVisibility = Visibility.Collapsed; } else { MessageBox.Show("连接失败！"); } }); } } /// <summary> /// 关闭按钮 /// </summary> private RelayCommand closeCommand; public RelayCommand CloseCommand { get { return closeCommand = new RelayCommand(() => { DBHelper.CloseConnection(); Messenger.Default.Send<string>(null, "WinClose"); }); } } /// <summary> /// 创建VO按钮 /// </summary> private RelayCommand<PropertyNodeItem> createVoCommand; public RelayCommand<PropertyNodeItem> CreateVoCommand { get { return createVoCommand = new RelayCommand<PropertyNodeItem>(p => { if (p == null || (p.ParentName.Equals(p.ChildrenName) && string.IsNullOrEmpty(SelectTableName.Name))) return; if (p.ParentName.Equals(p.ChildrenName) && !string.IsNullOrEmpty(SelectTableName.Name)) { GetTableContentList(p.ParentName, SelectTableName.Name); //创建文件夹 CreateVo.CreateDirectory(); CreateVo.CreateVoNoINotifyPropertyChanged(Ns != "" ? Ns : "test", SelectTableName.Name, TableContentGridList.ToList()); CreateVo.CreateVoWithINotifyPropertyChanged(Ns != "" ? Ns : "test", SelectTableName.Name, TableContentGridList.ToList()); } else { //创建文件夹 CreateVo.CreateDirectory(); CreateVo.CreateVoNoINotifyPropertyChanged(Ns != "" ? Ns : "test", p.ChildrenName, TableContentGridList.ToList()); CreateVo.CreateVoWithINotifyPropertyChanged(Ns != "" ? Ns : "test", p.ChildrenName, TableContentGridList.ToList()); } }); } } #endregion #region 事件 /// <summary> /// Treeview切换事件 /// </summary> private RelayCommand<PropertyNodeItem> selectChangedCommand; public RelayCommand<PropertyNodeItem> SelectChangedCommand { get { return selectChangedCommand = new RelayCommand<PropertyNodeItem>(p => { if (p.ParentName.Equals(p.ChildrenName)) { GetTableNameList(p.ParentName); VisibilityName = Visibility.Visible; VisibilityContent = Visibility.Collapsed; } if (!p.ParentName.Equals(p.ChildrenName)) { GetTableContentList(p.ParentName, p.ChildrenName); VisibilityName = Visibility.Collapsed; VisibilityContent = Visibility.Visible; } }); } } #endregion }
注意事项：
在最开始的连接Oracle中，我用的是OleDbConnection，连接语句里用到了“Provider=OraOLEDB.Oracle.1;”，也就是用到了Oracle的驱动，这个在没有注册的时候会弹出
未在本地计算机注册“OraOLEDB.Oracle.1”，在我的机器上注册成功，好使了，但是在我同事的机器上，注册成功了，依然会有这个提示，不能成功连接数据库，因此，最终，选用了Oracle.ManagedDataAccess.DLL文件，它是oracle官方的托管驱动，有6M多，但是有了这个文件以后，直接使用OracleConnection就不会爆出连接问题了。
总结：做这个小工具没有什么难度，用到的方法有Linq、Oracle的Select语句、StreamWriter写入文件等，但是对于我们的开发还是蛮实用的，希望看到的朋友可以根据你们的项目需求，做出其他版本的小工具，大家一起探讨、成长。