天津投入产出系统后端
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using System;
using System.Collections.Generic;
using System.Linq;
using System.Data;
using System.Text;
using System.Reflection;
using QMFrameWork.Data;
using QMFrameWork.Data.Attributes;
using QMFrameWork.Common.Util;
using QMFrameWork.Common.Serialization;
using QMAPP.Entity.Sys;
using QMAPP.DAL.Sys;
namespace QMAPP.BLL.Sys
{
/// <summary>
/// 数据变更痕迹管理
/// </summary>
public class DataChangeManageBLL:BaseBLL
{
#region 获取数据变更信息
public DataMark GetInfo(DataMark info)
{
DataTable columnDt = new DataTable();
object oldInfo=null;
object newInfo=null;
Type entityType;
try
{
//获取数据
info=new DataChangeManageDAL().GetInfo(info,ref columnDt);
//获取实体类型
entityType = this.GetEntityTypeByTable(info.DATAKIND);
info.DATAKIND = info.DATAKINDDES;
//json格式数据转换为实体
if (string.IsNullOrEmpty(info.ORIGINALDATA) == false)
{
oldInfo = JsonConvertHelper.GetDeserialize(entityType, info.ORIGINALDATA);
}
if (string.IsNullOrEmpty(info.CHANGEDDATA) == false)
{
newInfo = JsonConvertHelper.GetDeserialize(entityType, info.CHANGEDDATA);
}
//生成字段明细数据
PropertyInfo[] pArray = entityType.GetProperties();
info.Details = new List<DataMarkDetail>();
//获取字段信息
foreach (var item in pArray)
{
object[] attrs = item.GetCustomAttributes(typeof(DBColumnAttribute), true);
if (attrs.Count() == 0)
{
continue;
}
DBColumnAttribute ca = (DBColumnAttribute)attrs[0];//字段属性
DataMarkDetail detail = new DataMarkDetail();
//原值
object oldValue=null;
if(oldInfo!=null)
oldValue=BindHelper.GetPropertyValue(oldInfo, item.Name);
detail.OldValue = oldValue==null?"":oldValue.ToString();
//变更后值
object newValue = null;
if (newInfo != null)
newValue = BindHelper.GetPropertyValue(newInfo, item.Name);
detail.NewValue = newValue == null ? "" : newValue.ToString();
DataRow[] rows=columnDt.Select("COLUMNNAME='"+ca.ColumnName+"'");
if(rows.Length>0)
detail.ColumnDes = rows[0]["COLUMNDES"].ToString();
if (string.IsNullOrEmpty(detail.ColumnDes) == true)
{
detail.ColumnDes = ca.ColumnName;
}
info.Details.Add(detail);
}
return info;
}
catch (Exception ex)
{
throw ex;
}
}
#endregion
#region 获取数据变更列表
/// <summary>
/// 获取数据变更列表
/// </summary>
/// <param name="condition">查询条件</param>
/// <param name="page">分页设置</param>
/// <returns>数据页</returns>
public DataPage GetList(DataMark condition, DataPage page)
{
try
{
//if (string.IsNullOrEmpty(condition.DATAKIND)==false)
// condition.DATAKIND = this.GetTableName(condition.DATAKIND);
return new DataChangeManageDAL().GetList(condition, page);
}
catch (Exception ex)
{
throw ex;
}
}
#endregion
#region 获取实体对应数据表名称
/// <summary>
/// 获取实体对应数据表名称
/// </summary>
/// <param name="entityName">实体名</param>
/// <returns>数据表名称</returns>
private string GetTableName(string entityName)
{
string tableName = "";
try
{
Type entityType = this.GetEntityType(entityName);
//获取表信息
object[] attrsClassAtt = entityType.GetCustomAttributes(typeof(DBTableAttribute), true);
if (attrsClassAtt == null)
{
throw new Exception("当前实体没有添加属性DBTableAttribute!");
}
DBTableAttribute tableAtt = (DBTableAttribute)attrsClassAtt[0];
tableName = tableAtt.TableName;
return tableName;
}
catch (Exception ex)
{
throw ex;
}
}
#endregion
#region 获取实体类型
/// <summary>
/// 获取实体类型
/// </summary>
/// <param name="entityName">实体名</param>
/// <returns>实体类型</returns>
private Type GetEntityType(string entityName)
{
List<string> assemblyFiles = new List<string>();
string path = "";
try
{
//主数据实体类库
assemblyFiles.Add("QMAPP.MD.Entity.dll");
//系统管理实体类库
assemblyFiles.Add("QMAPP.Entity.dll");
path = System.AppDomain.CurrentDomain.BaseDirectory;
foreach (string assemblyFile in assemblyFiles)
{
Assembly asse = Assembly.LoadFile(path+"\\"+assemblyFile);
Type[] types = asse.GetTypes();
foreach (Type type in types)
{
if (type.Name.EndsWith(entityName))
{
return type;
}
}
}
return null;
}
catch (Exception ex)
{
throw new Exception("获取实体类型失败");
}
}
/// <summary>
/// 获取实体类型
/// </summary>
/// <param name="tableName">表名</param>
/// <returns>实体类型</returns>
private Type GetEntityTypeByTable(string tableName)
{
Type t=null;
try
{
//Assembly asse = Assembly.GetAssembly(typeof(QMAPP.Entity.BaseEntity));
Assembly asse = Assembly.LoadFile(@"E:\大众生产看板\项目文件\trunk\plm\ServicesCenter\WCF\QMFrameWork.WebServiceHost\bin\QMAPP.MD.Entity.dll");
Type[] types = asse.GetExportedTypes();
foreach (Type entityType in types)
{
//获取表信息
object[] attrsClassAtt = entityType.GetCustomAttributes(typeof(DBTableAttribute), true);
if (attrsClassAtt != null && attrsClassAtt.Length>0)
{
DBTableAttribute tableAtt = (DBTableAttribute)attrsClassAtt[0];
if (tableAtt.TableName == tableName)
{
t = entityType;
break;
}
}
}
if (t == null)
{
throw new Exception("通过表名获取实体类型失败");
}
return t;
}
catch (Exception ex)
{
throw ex;
}
}
#endregion
}
}