55128.cn_zt/ThematicArticleSpider/Common/Utils.cs

using System;
using System.Collections.Generic;
using System.IO;
using System.Net;
using System.Security.Cryptography;
using System.Text;
using System.Text.RegularExpressions;
using System.Xml;

namespace Common
{
    public class Utils
    {
        #region 将XML内容转换成目标对象实体集合
        /// <summary>
        /// 将XML内容转换成目标对象实体集合
        /// </summary>
        /// <typeparam name="T">目标对象实体</typeparam>
        /// <param name="fileName">完整文件名(根目录下只需文件名称)</param>
        /// <param name="wrapperNodeName">主节点名称</param>
        /// <returns></returns>
        public static List<T> ConvertXmlToObject<T>(string fileName, string wrapperNodeName)
        {
            XmlDocument doc = new XmlDocument();
            doc.Load(fileName);
            List<T> result = new List<T>();
            Type type = typeof(T);
            XmlNodeList nodeList = doc.ChildNodes;
            if (!string.IsNullOrEmpty(wrapperNodeName))
            {
                foreach (XmlNode node in doc.ChildNodes)
                {
                    if (node.Name == wrapperNodeName)
                    {
                        nodeList = node.ChildNodes;
                        break;
                    }
                }
            }
            object oneT = null;
            foreach (XmlNode node in nodeList)
            {
                if (node.NodeType == XmlNodeType.Comment || node.NodeType == XmlNodeType.XmlDeclaration) continue;
                oneT = type.Assembly.CreateInstance(type.FullName ?? throw new InvalidOperationException());
                foreach (XmlNode item in node.ChildNodes)
                {
                    if (item.NodeType == XmlNodeType.Comment) continue;
                    var property = type.GetProperty(item.Name);
                    if (property != null)
                        property.SetValue(oneT, Convert.ChangeType(item.InnerText, property.PropertyType), null);
                }
                result.Add((T)oneT);
            }
            return result;
        }
        #endregion

        #region 获取基目录

        /// <summary>
        /// 获取基目录
        /// </summary>
        /// <returns></returns>
        public static string GetBaseDirectory(string path)
        {
            try
            {
                return AppDomain.CurrentDomain.BaseDirectory + path;
            }
            catch (Exception)
            {
                return Path.GetFullPath(path);
            }
        }

        #endregion

        #region 从文件的绝对路径中获取除开文件名以及扩展名的部分
        /// <summary>
        /// 从文件路径中获取除开文件名以及扩展名的部分
        /// </summary>
        /// <param name="filePath">文件的绝对路径</param>        
        public static string GetFilePathNoExtensionAndFileName(string filePath)
        {
            FileInfo fi = new FileInfo(filePath);
            return fi.DirectoryName;
        }
        #endregion

        #region 创建一个目录
        /// <summary>
        /// 创建一个目录
        /// </summary>
        /// <param name="directoryPath">目录的绝对路径</param>
        public static void CreateDirectory(string directoryPath)
        {
            //如果目录不存在则创建该目录
            if (!IsExistDirectory(directoryPath))
            {
                Directory.CreateDirectory(directoryPath);
            }
        }
        #endregion

        #region 检测指定目录是否存在
        /// <summary>
        /// 检测指定目录是否存在
        /// </summary>
        /// <param name="directoryPath">目录的绝对路径</param>
        /// <returns></returns>
        public static bool IsExistDirectory(string directoryPath)
        {
            return Directory.Exists(directoryPath);
        }
        #endregion

        #region 检测指定文件是否存在,如果存在返回true
        /// <summary>
        /// 检测指定文件是否存在,如果存在则返回true。
        /// </summary>
        /// <param name="filePath">文件的绝对路径</param>        
        public static bool IsExistFile(string filePath)
        {
            return System.IO.File.Exists(filePath);
        }
        #endregion

        #region 删除文件
        /// <summary>
        /// 删除文件
        /// </summary>
        /// <param name="filepath">要删除的文件路径和名称</param>
        public static void DeleteFile(string filepath)
        {
            if (IsExistFile(filepath))
            {
                System.IO.File.Delete(filepath);
            }
        }
        #endregion

        #region 移动文件(剪贴--粘贴)
        /// <summary>
        /// 移动文件(剪贴--粘贴)
        /// </summary>
        /// <param name="dir1">要移动的文件的路径及全名(包括后缀)</param>
        /// <param name="dir2">文件移动到新的位置,并指定新的文件名</param>
        public static void MoveFile(string dir1, string dir2)
        {
            dir1 = dir1.Replace("/", "\\");
            dir2 = dir2.Replace("/", "\\");
            if (IsExistFile(dir1))
            {
                File.Move(dir1, dir2);
            }
        }
        #endregion

        #region 复制文件
        /// <summary>
        /// 复制文件
        /// </summary>
        /// <param name="dir1">要复制的文件的路径已经全名(包括后缀)</param>
        /// <param name="dir2">目标位置,并指定新的文件名</param>
        public static void CopyFile(string dir1, string dir2)
        {
            dir1 = dir1.Replace("/", "\\");
            dir2 = dir2.Replace("/", "\\");
            if (IsExistFile(dir1))
            {
                System.IO.File.Copy(dir1, dir2, true);
            }
        }
        #endregion
    }
}