CodeSmith是一款与数据库相关的工具，只要与数据库相关的类都可以通过它编写模板来批量实现。

<%@ Template Language="C#" TargetLanguage="C#" %>
<%@ Assembly Name="SchemaExplorer"%>
<%@ Import Namespace="SchemaExplorer"%>
<%@ Property Name="SourceTable" Type="SchemaExplorer.TableSchema"%>
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace Model
{public class <%=GetClassName()%>{<%foreach(ColumnSchema column in this.SourceTable.Columns)%><%{%><%=GetCSDataType(column)%> <%=ToCamel(column.Name)%>;public <%=GetCSDataType(column)%> <%=ToPascal(column.Name)%>{get { return <%=ToCamel(column.Name)%>; }set { <%=ToCamel(column.Name)%> = value; }}<%}%>}
}
<script runat="template">
//Pascal命名法（将首字母大写）
public string ToPascal(string s)
{return s.Substring(0,1).ToUpper()+s.Substring(1);
}
//骆驼命名法（将首字母小写）
public string ToCamel(string s)
{return s.Substring(0,1).ToLower()+s.Substring(1);
}
//得到类的名字（由表名而来）
public string GetClassName()
{string s=this.SourceTable.Name;//取到表名//判断表名是不是以S结尾，如果是去掉Sif (s.EndsWith("s")){return ToPascal(s.Substring(0,s.Length-1));}return ToPascal(s);
}
//得到C#的数据类型（将基本常用的数据类型意逐个转换）
public static string GetCSDataType(ColumnSchema column){if (column.Name.EndsWith("TypeCode")) return column.Name;switch (column.DataType){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.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 "TimeSpan";case DbType.UInt16: return "ushort";case DbType.UInt32: return "uint";case DbType.UInt64: return "ulong";case DbType.VarNumeric: return "decimal";default:{return "__UNKNOWN__" + column.NativeType;}}}public override string GetFileName(){return this.GetClassName()+".cs";}
</script>

这是一个为指定的某一张表生成实体类的模板。

在编译运行之后就有以下结果：

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace Model
{public class StudentExamQuestionAnswer{int id;public int Id{get { return id; }set { id = value; }}int examId;public int ExamId{get { return examId; }set { examId = value; }}int studentId;public int StudentId{get { return studentId; }set { studentId = value; }}int questionId;public int QuestionId{get { return questionId; }set { questionId = value; }}string answer;public string Answer{get { return answer; }set { answer = value; }}int examQuestionId;public int ExamQuestionId{get { return examQuestionId; }set { examQuestionId = value; }}int examStudentId;public int ExamStudentId{get { return examStudentId; }set { examStudentId = value; }}}
}

跟我们平时一句一句的写代码是一模一样。怎么样？批量生成不错吧！还有更美的呢！

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