Ｃ# 动态生成ＤＬＬ
using System;
using System.Data;
using System.Configuration;
using System.Linq;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.HtmlControls;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Xml.Linq;
using System.CodeDom;
using Microsoft.CSharp;
using System.IO;
using System.CodeDom.Compiler;
using System.Text;
using System.Reflection;
/// <summary>
/// Summary description for Create_Dll
/// </summary>
public class Create_Dll
{
public Create_Dll()
{
//
// TODO: Add constructor logic here
//
}
/// <summary>
/// 创建数据库ＭＯＤＥＬ类
/// </summary>
/// <param name="classNamespace">实体类名称</param>
/// <returns></returns>
public void Create_Model_DLL(string classNamespace)
{ String Dll_file_Name = "";
Dll_file_Name = classNamespace+"MODEL.dll";
//生成一个可编译的单元，这是最根部的东西
CodeCompileUnit compunit = new CodeCompileUnit();
// 创建编译器实例//设置编译器对象
CSharpCodeProvider csprovider = new CSharpCodeProvider();
ICodeCompiler complier = csprovider.CreateCompiler();
ICodeGenerator gen = csprovider.CreateGenerator(); //生成CS文件
// 设置编译参数。
CompilerParameters paras = new CompilerParameters();
paras.GenerateExecutable = false; //编译成exe还是dll
paras.GenerateInMemory = false; //是否写入内存,不写入内存就写入磁盘
paras.OutputAssembly = "d:\\" + Dll_file_Name; //输出路径
paras.IncludeDebugInformation = false; //是否产生pdb调试文件 默认是false
paras.ReferencedAssemblies.Add("System.dll");//添加引用DLL
paras.ReferencedAssemblies.Add("System.Data.dll");//添加引用DLL
StringBuilder Greef_Song_Class_Source = new StringBuilder();
Greef_Song_Class_Source.Append("using System;\r\n");
Greef_Song_Class_Source.Append("using System.Collections.Generic;\r\n");
Greef_Song_Class_Source.Append("using System.Text;\r\n");
Greef_Song_Class_Source.Append("using System.Data;\r\n");
Greef_Song_Class_Source.Append("using System.Data.SqlClient;\r\n");
//#region 命名空间及类名
Greef_Song_Class_Source.Append("namespace " + classNamespace +".MODEL \r\n");
Greef_Song_Class_Source.Append("{ \r\n");
MYSQL_SQLDB SQLDB = new MYSQL_SQLDB();
DataTable dt = new DataTable();
DataTable dt1 = new DataTable();
dt1.Clear();
dt1 = SQLDB.Get_DataTable_By_ExecuteSQL("show tables");
//类定义开始
foreach (DataRow DB_Table_Names_dr in dt1.Rows)
{
//定义类开始
Greef_Song_Class_Source.Append(" [Serializable()] \r\n ");
Greef_Song_Class_Source.Append(" public class " + classNamespace + "_MODEL_" + DB_Table_Names_dr[0].ToString() + "\r\n");
Greef_Song_Class_Source.Append(" { \r\n");
dt.Clear();
dt = SQLDB.Get_DataTable_By_ExecuteSQL("desc " + DB_Table_Names_dr[0].ToString().ToString() + "");
foreach (DataRow dr in dt.Rows)
{
//定义字段
Greef_Song_Class_Source.Append(" /// <summary> \r\n");
Greef_Song_Class_Source.Append(" /// 此字段为数据表(" + DB_Table_Names_dr[0].ToString() + ")中的字段：" + dr[0].ToString() + "\r\n");
Greef_Song_Class_Source.Append(" /// </summary> \r\n");
Greef_Song_Class_Source.Append(" public String "+dr[0].ToString() + "; \r\n");
//定义字段结束
// 定义属性
Greef_Song_Class_Source.Append(" [System.ComponentModel.DisplayName(\"此属性为：数据表(" + DB_Table_Names_dr[0].ToString() + ")中的字段：" + dr[0].ToString() + "\")] \r\n");
Greef_Song_Class_Source.Append(" public String " + DB_Table_Names_dr[0].ToString() + "_" + dr[0].ToString() + " \r\n");
Greef_Song_Class_Source.Append(" {" +" \r\n");
//获取属性值
Greef_Song_Class_Source.Append(" get \r\n");
Greef_Song_Class_Source.Append(" { \r\n");
Greef_Song_Class_Source.Append(" return " + dr[0].ToString() + " ; \r\n");
Greef_Song_Class_Source.Append(" } \r\n");
//获取属性值结束
//设定属性值
Greef_Song_Class_Source.Append(" set \r\n");
Greef_Song_Class_Source.Append(" { \r\n");
Greef_Song_Class_Source.Append(" " + dr[0].ToString() + " =value; \r\n");
Greef_Song_Class_Source.Append(" } \r\n");
//设定属性值结束
Greef_Song_Class_Source.Append(" } \r\n");
//定义属性结束
}
Greef_Song_Class_Source.Append(" } \r\n");
//类定义结束
}
Greef_Song_Class_Source.Append("} \r\n");
CompilerResults result = complier.CompileAssemblyFromSource(paras, Greef_Song_Class_Source.ToString());
}
public string Create_DAL_DLL(string classNamespace)
{
//string classNamespace/命名空间
//string className 类名或表名
String Dll_file_Name = "";
Dll_file_Name = classNamespace + "DAL.dll";
//生成一个可编译的单元，这是最根部的东西
CodeCompileUnit compunit = new CodeCompileUnit();
// 创建编译器实例//设置编译器对象
CSharpCodeProvider csprovider = new CSharpCodeProvider();
ICodeCompiler complier = csprovider.CreateCompiler();
ICodeGenerator gen = csprovider.CreateGenerator(); //生成CS文件
StreamWriter sw = new StreamWriter(@"c:\testywm.cs", false);
gen.GenerateCodeFromCompileUnit(compunit, sw, new CodeGeneratorOptions());
// 设置编译参数。
CompilerParameters paras = new CompilerParameters();
paras.GenerateExecutable = false; //编译成exe还是dll
paras.GenerateInMemory = false; //是否写入内存,不写入内存就写入磁盘
paras.OutputAssembly = "d:\\" + Dll_file_Name; //输出路径
paras.IncludeDebugInformation = false; //是否产生pdb调试文件 默认是false
paras.ReferencedAssemblies.Add("System.dll");//添加引用DLL
paras.ReferencedAssemblies.Add("System.Data.dll");//添加引用DLL
paras.ReferencedAssemblies.Add("D:\\" + classNamespace + "MODEL.dll");//添加引用DLL
StringBuilder Greef_Song_Class_Source = new StringBuilder();
Greef_Song_Class_Source.Append("using System;\r\n");
Greef_Song_Class_Source.Append("using System.Collections.Generic;\r\n");
Greef_Song_Class_Source.Append("using System.Text;\r\n");
Greef_Song_Class_Source.Append("using System.Data;\r\n");
Greef_Song_Class_Source.Append("using System.Data.SqlClient;\r\n");
Greef_Song_Class_Source.Append("using " + classNamespace + ".MODEL;\r\n");
//#region 命名空间及类名
Greef_Song_Class_Source.Append("namespace " + classNamespace + ".DAL \r\n");
Greef_Song_Class_Source.Append("{ \r\n");
MYSQL_SQLDB SQLDB = new MYSQL_SQLDB();
DataTable dt = new DataTable();
DataTable dt1 = new DataTable();
dt1.Clear();
dt1 = SQLDB.Get_DataTable_By_ExecuteSQL("show tables");
//类定义开始
foreach (DataRow DB_Table_Names_dr in dt1.Rows)
{
//定义类开始
Greef_Song_Class_Source.Append(" [Serializable()] \r\n ");
Greef_Song_Class_Source.Append(" public class " + classNamespace + "_DAL_" + DB_Table_Names_dr[0].ToString() + "\r\n");
Greef_Song_Class_Source.Append(" { \r\n");
//定义字段
Greef_Song_Class_Source.Append(" public " + classNamespace + "_MODEL_" + DB_Table_Names_dr[0].ToString() + " Member = new " + classNamespace + "_MODEL_" + DB_Table_Names_dr[0].ToString() + "(); \r\n");
//定义字段结束
Greef_Song_Class_Source.Append(" } \r\n");
//类定义结束
}
Greef_Song_Class_Source.Append("} \r\n");
sw.Write(Greef_Song_Class_Source.ToString()); //输出文件
sw.Close(); //关闭文件
// System.Diagnostics.Debug.WriteLine(Greef_Song_Class_Source.ToString()); // 调试用。注释掉
// 编译代码。
CompilerResults result = complier.CompileAssemblyFromSource(paras, Greef_Song_Class_Source.ToString());
// 获取编译后的程序集。
//Assembly assembly = result.CompiledAssembly;
return Greef_Song_Class_Source.ToString();
//// 动态调用方法。
//object eval = assembly.CreateInstance(className);
//MethodInfo method = eval.GetType().GetMethod(methodName);
// object reobj = "生成dll成功";// method.Invoke(eval, null);
//GC.Collect();
// return reobj;
}
}
