真的很晚了，我只花了大约 10 分钟，所以它非常草率，但是它确实有效并且会给你一个很好的起点：
using System;
using System.Collections.Generic;
using System.Text;
using System.Reflection;
namespace TableGenerator
{
class Program
{
static void Main(string[] args)
{
List<TableClass> tables = new List<TableClass>();
// Pass assembly name via argument
Assembly a = Assembly.LoadFile(args[0]);
Type[] types = a.GetTypes();
// Get Types in the assembly.
foreach (Type t in types)
{
TableClass tc = new TableClass(t);
tables.Add(tc);
}
// Create SQL for each table
foreach (TableClass table in tables)
{
Console.WriteLine(table.CreateTableScript());
Console.WriteLine();
}
// Total Hacked way to find FK relationships! Too lazy to fix right now
foreach (TableClass table in tables)
{
foreach (KeyValuePair<String, Type> field in table.Fields)
{
foreach (TableClass t2 in tables)
{
if (field.Value.Name == t2.ClassName)
{
// We have a FK Relationship!
Console.WriteLine("GO");
Console.WriteLine("ALTER TABLE " + table.ClassName + " WITH NOCHECK");
Console.WriteLine("ADD CONSTRAINT FK_" + field.Key + " FOREIGN KEY (" + field.Key + ") REFERENCES " + t2.ClassName + "(ID)");
Console.WriteLine("GO");
}
}
}
}
}
}
public class TableClass
{
private List<KeyValuePair<String, Type>> _fieldInfo = new List<KeyValuePair<String, Type>>();
private string _className = String.Empty;
private Dictionary<Type, String> dataMapper
{
get
{
// Add the rest of your CLR Types to SQL Types mapping here
Dictionary<Type, String> dataMapper = new Dictionary<Type, string>();
dataMapper.Add(typeof(int), "BIGINT");
dataMapper.Add(typeof(string), "NVARCHAR(500)");
dataMapper.Add(typeof(bool), "BIT");
dataMapper.Add(typeof(DateTime), "DATETIME");
dataMapper.Add(typeof(float), "FLOAT");
dataMapper.Add(typeof(decimal), "DECIMAL(18,0)");
dataMapper.Add(typeof(Guid), "UNIQUEIDENTIFIER");
return dataMapper;
}
}
public List<KeyValuePair<String, Type>> Fields
{
get { return this._fieldInfo; }
set { this._fieldInfo = value; }
}
public string ClassName
{
get { return this._className; }
set { this._className = value; }
}
public TableClass(Type t)
{
this._className = t.Name;
foreach (PropertyInfo p in t.GetProperties())
{
KeyValuePair<String, Type> field = new KeyValuePair<String, Type>(p.Name, p.PropertyType);
this.Fields.Add(field);
}
}
public string CreateTableScript()
{
System.Text.StringBuilder script = new StringBuilder();
script.AppendLine("CREATE TABLE " + this.ClassName);
script.AppendLine("(");
script.AppendLine("\t ID BIGINT,");
for (int i = 0; i < this.Fields.Count; i++)
{
KeyValuePair<String, Type> field = this.Fields[i];
if (dataMapper.ContainsKey(field.Value))
{
script.Append("\t " + field.Key + " " + dataMapper[field.Value]);
}
else
{
// Complex Type?
script.Append("\t " + field.Key + " BIGINT");
}
if (i != this.Fields.Count - 1)
{
script.Append(",");
}
script.Append(Environment.NewLine);
}
script.AppendLine(")");
return script.ToString();
}
}
}
我将这些类放在一个程序集中进行测试：
public class FakeDataClass
{
public int AnInt
{
get;
set;
}
public string AString
{
get;
set;
}
public float AFloat
{
get;
set;
}
public FKClass AFKReference
{
get;
set;
}
}
public class FKClass
{
public int AFKInt
{
get;
set;
}
}
它生成了以下 SQL：
CREATE TABLE FakeDataClass
(
ID BIGINT,
AnInt BIGINT,
AString NVARCHAR(255),
AFloat FLOAT,
AFKReference BIGINT
)
CREATE TABLE FKClass
(
ID BIGINT,
AFKInt BIGINT
)
GO
ALTER TABLE FakeDataClass WITH NOCHECK
ADD CONSTRAINT FK_AFKReference FOREIGN KEY (AFKReference) REFERENCES FKClass(ID)
GO
一些进一步的想法......我会考虑在你的类中添加一个属性，例如 [SqlTable]，这样它只会为你想要的类生成表。此外，这可以清理大量、修复错误、优化（FK 检查器是个笑话）等等......只是为了让你开始。