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XML数据源快速开发框架——XmlFramwork

浪漫的周末从cnblogs开始。话说,今天和往常的周末一样,韩君躲在被窝里用手机翻阅着园子里的珠玑。一篇《应用XML作为数据库的快速开发框架》的文章在韩君脑子里激起了一波球形闪电。想想上周中刚好完成的一个WinCE小项目,这波久久不能平息。韩君做了一个比马兄更艰难的决定,秒速穿戴衣裤后,开始了那第N次的亲密接触...

成果:

一个外传版的XML数据源快速开发框架:XmlFramwork。

技术分享

PathRoute:路由XML数据文件路径;

List<T>:XML实体类的泛型集合,对应XML文档;

ListExtend:为List<T>扩展将实体类集合序列化为XML文档及将XML文档反序列化为实体类集合的方法;

XmlEntity:XML实体类的基类,定义了一个Guid类型的属性(ID);

XmlEntityProcess:对Xml文档进行增、删、改、查等处理。

框架源码:

PathRoute.cs

/* 
 类:PathRoute
 描述:路由XML数据文件路径
 编 码 人:韩兆新 日期:2014年12月21日
 修改记录:
*/
using System.Configuration;
using System.IO;
using System.Reflection;
 
namespace XmlFramwork
{
    static class PathRoute
    {
        public static readonly string DataFolder = ConfigurationManager.AppSettings["DataFolder"];
        public static string GetXmlPath<T>()
        {
            string dataFolder = DataFolder;
            if (string.IsNullOrEmpty(dataFolder))
            {
                dataFolder = Path.Combine(Path.GetDirectoryName(Assembly.GetExecutingAssembly().Location), "Data");
            }
            return Path.ChangeExtension(Path.Combine(dataFolder, Path.Combine(typeof(T).FullName.Split(‘.‘))), ".xml");
        }
    }
}

ListExtend.cs

/* 
 类:ListExtend
 描述:为List<T>扩展加载XML文档和保存为XML文档的方法
 编 码 人:韩兆新 日期:2014年12月21日
 修改记录:
*/
using System.Collections.Generic;
using System.IO;
using System.Xml.Serialization;
 
namespace XmlFramwork
{
    public static class ListExtend
    {
        /// <summary>
        /// 加载XML文档返回List集合
        /// </summary>
        /// <typeparam name="TSource"></typeparam>
        /// <param name="source"></param>
        /// <returns></returns>
        public static List<TSource> Load<TSource>(this List<TSource> source)
        {
            string fileName = PathRoute.GetXmlPath<TSource>();
            if (File.Exists(fileName))
            {
                XmlSerializer xmlSerializer = new XmlSerializer(typeof(List<TSource>));
                using (Stream reader = new FileStream(fileName, FileMode.Open, FileAccess.Read))
                {
                    return xmlSerializer.Deserialize(reader) as List<TSource>;
                }
            }
            else
            {
                return new List<TSource>();
            }
        }
        /// <summary>
        /// 将list集合保存为XML文档
        /// </summary>
        /// <typeparam name="TSource"></typeparam>
        /// <param name="source"></param>
        public static void Save<TSource>(this List<TSource> source)
        {
            string fileName = PathRoute.GetXmlPath<TSource>();
            FileInfo fileInfo = new FileInfo(fileName);
            DirectoryInfo directoryInfo = fileInfo.Directory;
            if (!directoryInfo.Exists)
            {
                directoryInfo.Create();
            }
            XmlSerializer xmlSerializer = new XmlSerializer(source.GetType());
            using (Stream writer = new FileStream(fileName, FileMode.Create, FileAccess.Write))
            {
                xmlSerializer.Serialize(writer, source);
            }
        }
    }
}

XmlEntity.cs

/* 
 类:XmlEntity
 描述:Xml实体类基类
 编 码 人:韩兆新 日期:2014年12月21日
 修改记录:
*/
using System;
 
namespace XmlFramwork
{
    public class XmlEntity
    {
        public Guid ID{ set; get;}
    }
}
XmlEntityProcess.cs
/* 
 类:XmlEntityProcess〈T〉
 描述:对Xml文档进行增、删、改、查等处理
 编 码 人:韩兆新 日期:2014年12月21日
 修改记录:
*/
using System;
using System.Collections.Generic;
using System.Linq;
 
namespace XmlFramwork
{
    public static class XmlEntityProcess<T> where T : XmlEntity
    {
        private static string lastErrMsg;
        /// <summary>
        /// 获取最后一次错误的信息
        /// </summary>
        /// <returns></returns>
        public static string GetLastErrMsg()
        {
            return lastErrMsg;
        }
        /// <summary>
        /// 插入XML实体类对象
        /// </summary>
        /// <param name="entity"></param>
        /// <returns></returns>
        public static bool Insert(T entity)
        {
            try
            {
                List<T> entityList = new List<T>().Load();
                entity.ID = Guid.NewGuid();
                entityList.Add(entity);
                entityList.Save();
                return true;
            }
            catch (Exception ex)
            {
                lastErrMsg = ex.Message;
                return false;
            }
        }
        /// <summary>
        /// 根据ID删除XML实体类对象
        /// </summary>
        /// <param name="id"></param>
        /// <returns></returns>
        public static bool DeleteById(Guid id)
        {
            try
            {
                List<T> entityList = new List<T>().Load();
                entityList = entityList.Where(entity => entity.ID != id).ToList();
                entityList.Save();
                return true;
            }
            catch (Exception ex)
            {
                lastErrMsg = ex.Message;
                return false;
            }
        }
        /// <summary>
        /// 更新XML实体类对象
        /// </summary>
        /// <param name="entity"></param>
        /// <returns></returns>
        public static bool Update(T entity)
        {
            try
            {
                List<T> entityList = new List<T>().Load();
                entityList = entityList.Where(e => e.ID != entity.ID).ToList();
                entityList.Add(entity);
                entityList.Save();
 
                return true;
            }
            catch (Exception ex)
            {
                lastErrMsg = ex.Message;
                return false;
            }
        }
        /// <summary>
        /// 获取所有的指定类型的XML实体类对象
        /// </summary>
        /// <returns></returns>
        public static List<T> GetAll()
        {
            try
            {
                List<T> entityList = new List<T>().Load();
                return entityList;
            }
            catch (Exception ex)
            {
                lastErrMsg = ex.Message;
                return null;
            }
 
        }
        /// <summary>
        /// 根据ID获取指定类型的XML实体类对象
        /// </summary>
        /// <param name="id"></param>
        /// <returns></returns>
        public static T GetById(Guid id)
        {
            try
            {
                List<T> entityList = new List<T>().Load();
                entityList = entityList.Where(e => e.ID == id).ToList();
                if (null == entityList || entityList.Count <= 0)
                {
                    return default(T);
                }
                else
                {
                    return entityList[0];
                }
            }
            catch (Exception ex)
            {
                lastErrMsg = ex.Message;
                return null;
            }
        }
    }
}

框架演示实例:

界面:

技术分享

DemoForm.cs

/* 
 类:DemoForm
 描述:XmlFramwork增、删、改、查演示
 编 码 人:韩兆新 日期:2014年12月21日
 修改记录:
*/
using System;
using System.Collections.Generic;
using System.Windows.Forms;
using XmlFramwork;
using XmlFramworkDemo.Entity;
using XmlFramworkDemo.Urility;
 
namespace XmlFramworkDemo
{
    public partial class DemoForm : Form
    {
        public DemoForm()
        {
            InitializeComponent();
        }
        /// <summary>
        /// DemoForm窗口——加载
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void DemoForm_Load(object sender, EventArgs e)
        {
            BindGvUserInfo();
        }
        /// <summary>
        /// 添加、修改按钮——单击
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void btnOperation_Click(object sender, EventArgs e)
        {
            if (string.IsNullOrEmpty(txtName.Text))
            {
                MessageBox.Show("请输入姓名!");
                return;
            }
            if (string.IsNullOrEmpty(txtAge.Text))
            {
                MessageBox.Show("请输入年龄!");
                return;
            }
            else if(!ValidateHelper.IsValidUintFormat(txtAge.Text.Trim()))
            {
                MessageBox.Show("年龄不是合法的格式!");
                return;
            }
            if (btnOperation.Text.Equals("添加"))
            {
                UserInfo userInfo = new UserInfo();
                userInfo.Age = uint.Parse(txtAge.Text.Trim());
                userInfo.Name = txtName.Text;
                if (!XmlEntityProcess<UserInfo>.Insert(userInfo))
                {
                    MessageBox.Show("插入失败:" + XmlEntityProcess<UserInfo>.GetLastErrMsg());
                }
            }
            else
            {
                UserInfo userInfo = btnOperation.Tag as UserInfo;
                userInfo.Name = txtName.Text;
                userInfo.Age = uint.Parse(txtAge.Text.Trim());
                if (!XmlEntityProcess<UserInfo>.Update(userInfo))
                {
                    MessageBox.Show("更新失败:" + XmlEntityProcess<UserInfo>.GetLastErrMsg());
                }
            }
            btnOperation.Text = "添加";
            BindGvUserInfo();
        }
        /// <summary>
        /// 编辑菜单——单击
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void 编辑ToolStripMenuItem_Click(object sender, EventArgs e)
        {
            Guid id =Guid.Parse(gvUserInfo.SelectedRows[0].Cells["ID"].Value.ToString());
            UserInfo userInfo = XmlEntityProcess<UserInfo>.GetById(id);
            txtName.Text = userInfo.Name;
            txtAge.Text = userInfo.Age.ToString();
            btnOperation.Tag = userInfo;
            btnOperation.Text = "修改";
        }
        /// <summary>
        /// 删除菜单——单击
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void 删除ToolStripMenuItem_Click(object sender, EventArgs e)
        {
            Guid id = Guid.Parse(gvUserInfo.SelectedRows[0].Cells["ID"].Value.ToString());
            XmlEntityProcess<UserInfo>.DeleteById(id);
            BindGvUserInfo();
        }
        /// <summary>
        /// 查询按钮——单击
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void 查询ToolStripMenuItem_Click(object sender, EventArgs e)
        {
            Guid id =Guid.Parse(gvUserInfo.SelectedRows[0].Cells["ID"].Value.ToString());
            UserInfo userInfo = XmlEntityProcess<UserInfo>.GetById(id);
            txtName.Text = userInfo.Name;
            txtAge.Text = userInfo.Age.ToString();
        }
        
        /// <summary>
        /// 右键菜单
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void gvUserInfo_CellMouseDown(object sender, DataGridViewCellMouseEventArgs e)
        {
            if (e.ColumnIndex < 0 || e.RowIndex < 0)
            {
                return;
            }
            if (e.Button == MouseButtons.Right)
            {
                if (e.RowIndex >= 0)
                {
                    //若行已是选中状态就不再进行设置
                    if (gvUserInfo.Rows[e.RowIndex].Selected == false)
                    {
                        gvUserInfo.ClearSelection();
                        gvUserInfo.Rows[e.RowIndex].Selected = true;
                    }
                    //只选中一行时设置活动单元格
                    if (gvUserInfo.SelectedRows.Count == 1)
                    {
                        gvUserInfo.CurrentCell = gvUserInfo.Rows[e.RowIndex].Cells[e.ColumnIndex];
                    }
                    //弹出操作菜单
                    contextMenuStrip1.Show(MousePosition.X, MousePosition.Y);
                }
            }
        }
 
        /// <summary>
        /// 绑定GvUserInfo
        /// </summary>
        private void BindGvUserInfo()
        {
            List<UserInfo> userInfoList = XmlEntityProcess<UserInfo>.GetAll();
            if (null != userInfoList)
            {
                gvUserInfo.DataSource = userInfoList;
            }
            else
            {
                MessageBox.Show("获取数据失败:" + XmlEntityProcess<UserInfo>.GetLastErrMsg());
            }
        }
 
    }
}

UserInfo.cs

/* 
 类:UserInfo
 描述:XML实体类UserInfo
 编 码 人:韩兆新 日期:2014年12月21日
 修改记录:
*/
using XmlFramwork;
 
namespace XmlFramworkDemo.Entity
{
    public class UserInfo:XmlEntity
    {
        public string Name { set; get; }
        public uint Age { set; get; }
    }
}

ValidateHelper.cs

/* 
 类:ValidateHelper
 描述:用于字符串格式验证
 编 码 人:韩兆新 日期:2014年12月21日
 修改记录:
*/
using System;
 
namespace XmlFramworkDemo.Urility
{
    public static class ValidateHelper
    {
        public static bool IsValidUintFormat(string strIn)
        {
            uint temp;
            return UInt32.TryParse(strIn,out temp);
        }
    }
}

App.config

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源码下载:

XmlFramwork源码及演示.zip

XML数据源快速开发框架——XmlFramwork