CodeSmith 创建Ado.Net自定义模版（三）
CodeSmith 创建Ado.Net自定义模版（三）
写数据访问层模版：Step3_DAL.cst （接口一这步在这套模版中省略，可以自行补充）
写几个通用方法，比如：得到全部实体集合、通过ID得实体、添加、删除、修改几个方法
http://www.dtan.so
我这里没有使用sqlhelper之类的帮助类
<%@ CodeTemplate Language="C#" TargetLanguage="C#" ResponseEncoding="UTF-8" Description="实体类" %>
<%@ Property Name="NameSpace" Type="System.String" Default="Service" Category="Property" Description="命名空间" %>
<%@ Property Name="ModelNameSpace" Type="System.String" Default="Model" Category="String" Description="实体层的命名空间" %>
<%@ Property Name="UtilityNameSpace" Type="System.String" Default="Utility" Category="String" Description="工具层的命名空间" %>
<%@ Property Name="Author" Type="System.String" Default="Wilson" Category="Property" Description="作者名" %>
<%@ Property Name="SourceTable" Type="SchemaExplorer.TableSchema" Optional="True" Category="db" Description="表映射文件" %>
<%@ Assembly Name="SchemaExplorer" %>
<%@ Assembly Name="System.Data" %>
<%@ Import Namespace="SchemaExplorer" %>
<%@ Import Namespace="System.Data" %>
<script runat="template">
/// <summary>
///把数据库类型转化为C#类型
/// </summary>
public string DataType2CSharpType(System.Data.DbType dbType)
{
switch (dbType)
{
case DbType.AnsiString:
return "string";
case DbType.AnsiStringFixedLength:
return "string";
case DbType.Binary:
return "byte[]";
case DbType.Boolean:
return "bool";
case DbType.Byte:
return "byte";
case DbType.Currency:
return "decimal";
case DbType.Date:
return "DateTime";
case DbType.DateTime:
return "DateTime";
case DbType.DateTime2:
return "DateTime";
case DbType.DateTimeOffset:
return "DateTime";
case DbType.Decimal:
return "decimal";
case DbType.Double:
return "double";
case DbType.Guid:
return "Guid";
case DbType.Int16:
return "short";
case DbType.Int32:
return "int";
case DbType.Int64:
return "long";
case DbType.Object:
return "object";
case DbType.SByte:
return "sbyte";
case DbType.Single:
return "float";
case DbType.String:
return "string";
case DbType.StringFixedLength:
return "string";
case DbType.Time:
return "DateTime";
case DbType.UInt16:
return "ushort";
case DbType.UInt32:
return "uint";
case DbType.UInt64:
return "ulong";
case DbType.VarNumeric:
return "decimal";
case DbType.Xml:
return "string";
default:
return "object";
}
}
/// <summary>
/// 字符串转化为小写
/// </summary>
public string ToLowercase(string str)
{
str = str.ToLower();
return str;
}
/// <summary>
/// 泛型
/// </summary>
public string ToGeneric(string str)
{
str = "<" + str + ">";
return str;
}
</script>
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Data;
using System.Data.SqlClient;
using <%=ModelNameSpace%>
using <%=UtilityNameSpace%>
namespace <%=NameSpace%>
{
/// <summary>
/// 功能：<%=SourceTable.Name%>类数据访问
/// 创建人：<%=Author%>
/// 创建时间：<%=DateTime.Now.ToShortDateString() %>
/// </summary>
public class <%=SourceTable.Name%>Service : IDisposable
{
#region 公共
private System.ComponentModel.Component component = new System.ComponentModel.Component();
private bool disposed = false;
~<%=SourceTable.Name%>Service()
{
Dispose(false);
}
#endregion
#region IDisposable 成员
public void Dispose()
{
Dispose(true);
GC.SuppressFinalize(this);
}
private void Dispose(bool disposing)
{
if (!this.disposed)
{
if (disposing)
{
component.Dispose();
}
disposed = true;
}
}
#endregion
<% if(SourceTable.HasPrimaryKey) %>
<%{%>
#region##通过主键ID得到<%=SourceTable.Name%>
/// <summary>
/// 功能：通过ID得到<%=SourceTable.Name%>
/// 创建人： <%=Author%>
/// 创建时间：<%=DateTime.Now.ToShortDateString() %>
/// </summary>
/// <param name="">主键ID</param>
/// <returns></returns>
public <%=SourceTable.Name%> Get<%=SourceTable.Name%>ById(<%=DataType2CSharpType(SourceTable.PrimaryKey.MemberColumns[0].DataType)%> <%=ToLowercase(SourceTable.PrimaryKey.MemberColumns[0].Name)%>)
{
<%=SourceTable.Name%> obj = null;
string sql = "select * from <%=SourceTable.Name%> where <%=SourceTable.PrimaryKey.MemberColumns[0].Name%> = @PK";
SqlConnection conn = new SqlConnection(WebConn.connString);
conn.Open();
SqlCommand com = new SqlCommand(sql, conn);
SqlParameter[] sp = new SqlParameter[]
{
new SqlParameter("@PK",<%=SourceTable.PrimaryKey.MemberColumns[0].Size%>)
};
sp[0].Value = <%=ToLowercase(SourceTable.PrimaryKey.MemberColumns[0].Name)%>;
com.Parameters.AddRange(sp);
SqlDataReader reader = com.ExecuteReader();
if (reader.Read())
{
obj = new <%=SourceTable.Name%>();
<%for(int i=0; i < SourceTable.Columns.Count; i ++)%>
<%{%>
obj.<%=SourceTable.Columns[i].Name%> = (<%=DataType2CSharpType(SourceTable.Columns[i].DataType)%>)reader["<%=SourceTable.Columns[i].Name%>"];
<%}%>
}
reader.Close();
reader.Dispose();
com.Dispose();
conn.Close();
conn.Dispose();
return material;
}
#endregion
#region##通过主键ID删除<%=SourceTable.Name%>
/// <summary>
/// 功能：通过主键ID删除<%=SourceTable.Name%>
/// 创建人： <%=Author%>
/// 创建时间：<%=DateTime.Now.ToShortDateString() %>
/// </summary>
/// <param name="">主键ID</param>
/// <returns></returns>
public int DeleteById(<%=DataType2CSharpType(SourceTable.PrimaryKey.MemberColumns[0].DataType)%> <%=ToLowercase(SourceTable.PrimaryKey.MemberColumns[0].Name)%>)
{
int i = 0;
string sql = "delete from <%=SourceTable.Name%> where <%=SourceTable.PrimaryKey.MemberColumns[0].Name%> = @PK";
SqlConnection conn = new SqlConnection(WebConn.connString);
conn.Open();
SqlCommand com = new SqlCommand(sql, conn);
SqlParameter[] sp = new SqlParameter[]
{
new SqlParameter("@PK",<%=SourceTable.PrimaryKey.MemberColumns[0].Size%>)
};
sp[0].Value = <%=ToLowercase(SourceTable.PrimaryKey.MemberColumns[0].Name)%>;
com.Parameters.AddRange(sp);
i = com.ExecuteNonQuery();
com.Dispose();
conn.Close();
conn.Dispose();
return i;
}
#endregion
<%}%>
#region##添加<%=SourceTable.Name%>
/// <summary>
/// 功能：添加<%=SourceTable.Name%>
/// 创建人： <%=Author%>
/// 创建时间：<%=DateTime.Now.ToShortDateString() %>
/// </summary>
/// <param name=""></param>
/// <returns></returns>
public int Add<%=SourceTable.Name%>(<%=SourceTable.Name%> <%=ToLowercase(SourceTable.Name)%>)
{
int result = 0;
string sql = "insert into <%=SourceTable.Name%>(<%for(int i = 0; i < SourceTable.Columns.Count ; i++)%><%{%><%=SourceTable.Columns[i].Name%><%if(i<SourceTable.Columns.Count - 1)%><%{%>,<%}%><%}%>) values(<%for(int i = 0; i < SourceTable.Columns.Count ; i++)%><%{%>@<%=SourceTable.Columns[i].Name%><%if(i<SourceTable.Columns.Count - 1)%><%{%>,<%}%><%}%>);
SqlConnection conn = new SqlConnection(WebConn.connString);
conn.Open();
SqlCommand com = new SqlCommand(sql, conn);
SqlParameter[] sp = new SqlParameter[]
{
<%for(int i=0;i < SourceTable.Columns.Count; i++)%>
<%{%>
new SqlParameter("@<%=SourceTable.Columns[i].Name%>",<%=SourceTable.Columns[i].Size%>)<%if(i<SourceTable.Columns.Count - 1)%><%{%>,<%}%>
<%}%>
};
<%for(int i=0;i < SourceTable.Columns.Count; i++)%>
<%{%>
sp[<%=i%>].Value = <%=ToLowercase(SourceTable.Name)%>.<%=SourceTable.Columns[i].Name%>;
<%}%>
com.Parameters.AddRange(sp);
result = com.ExecuteNonQuery();
com.Dispose();
conn.Close();
conn.Dispose();
return result;
}
#endregion
#region##得到<%=SourceTable.Name%>集合
/// <summary>
/// 功能：得到<%=SourceTable.Name%>集合
/// 创建人： <%=Author%>
/// 创建时间：<%=DateTime.Now.ToShortDateString() %>
/// </summary>
/// <returns></returns>
public IList<%=ToGeneric(SourceTable.Name)%> GetList()
{
IList<%=ToGeneric(SourceTable.Name)%> list = new List<%=ToGeneric(SourceTable.Name)%>();
<%=SourceTable.Name%> obj = null;
string sql = "select * from <%=SourceTable.Name%>";
SqlConnection conn = new SqlConnection(WebConn.connString);
conn.Open();
SqlCommand com = new SqlCommand(sql, conn);
SqlDataReader reader = com.ExecuteReader();
while(reader.Read())
{
obj = new <%=SourceTable.Name%>();
<%for(int i=0; i < SourceTable.Columns.Count; i ++)%>
<%{%>
obj.<%=SourceTable.Columns[i].Name%> = (<%=DataType2CSharpType(SourceTable.Columns[i].DataType)%>)reader["<%=SourceTable.Columns[i].Name%>"];
<%}%>
list.Add(obj);
}
reader.Close();
reader.Dispose();
com.Dispose();
conn.Close();
conn.Dispose();
return list;
}
#endregion
#region##修改<%=SourceTable.Name%>
/// <summary>
/// 功能：修改<%=SourceTable.Name%>
/// 创建人： <%=Author%>
/// 创建时间：<%=DateTime.Now.ToShortDateString() %>
/// </summary>
/// <param name=""></param>
/// <returns></returns>
public int Mod<%=SourceTable.Name%>(<%=SourceTable.Name%> <%=ToLowercase(SourceTable.Name)%>)
{
int result = 0;
string sql = "update <%=SourceTable.Name%> set <%for(int i=0;i<SourceTable.Columns.Count;i++)%><%{%><%=SourceTable.Columns[i].Name%> = @<%=SourceTable.Columns[i].Name%><%if(i < SourceTable.Columns.Count - 1)%><%{%>,<%}%><%}%> where <%=SourceTable.PrimaryKey.MemberColumns[0].Name%> = @<%=SourceTable.PrimaryKey.MemberColumns[0].Name%>";
SqlConnection conn = new SqlConnection(WebConn.connString);
conn.Open();
SqlCommand com = new SqlCommand(sql, conn);
SqlParameter[] sp = new SqlParameter[]
{
<%for(int i=0;i < SourceTable.Columns.Count; i++)%>
<%{%>
new SqlParameter("@<%=SourceTable.Columns[i].Name%>",<%=SourceTable.Columns[i].Size%>)<%if(i<SourceTable.Columns.Count - 1)%><%{%>,<%}%>
<%}%>
};
<%for(int i=0;i < SourceTable.Columns.Count; i++)%>
<%{%>
sp[<%=i%>].Value = <%=ToLowercase(SourceTable.Name)%>.<%=SourceTable.Columns[i].Name%>;
<%}%>
com.Parameters.AddRange(sp);
result = com.ExecuteNonQuery();
com.Dispose();
conn.Close();
conn.Dispose();
return result;
}
#endregion
#region##修改<%=SourceTable.Name%>
/// <summary>
/// 修改<%=SourceTable.Name%>
/// 创建人： <%=Author%>
/// 创建时间：<%=DateTime.Now.ToShortDateString() %>
/// </summary>
/// <param name=""></param>
/// <returns></returns>
public int SelectCount()
{
int i = 0;
string sql = "select count(*) from <%=SourceTable.Name%>";
SqlConnection conn = new SqlConnection(WebConn.connString);
conn.Open();
SqlCommand com = new SqlCommand(sql, conn);
i = (int)com.ExecuteScalar();
com.Dispose();
conn.Dispose();
conn.Close();
return i;
}
#endregion
}
}
其它的就不多说了，大家自行看看
示例下载地址：下载