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【CSharp】实体类、字符串互相转换

作者:kunkun0921 / 发布于2015/1/26/ 258


	using System;
	using System.Collections.Generic;
	using System.Text;

	namespace PackDLL.Data.ConvertData
	{
	 /// <summary>
	 /// 实体类、字符串互相转换
	 /// </summary>
	 public class PackReflectionEntity<T>
	 {
	 /// <summary>
	 /// 将实体类通过反射组装成字符串
	 /// </summary>
	 /// <param name="t">实体类</param>
	 /// <returns>组装的字符串</returns>
	 public static string GetEntityToString(T t)
	 {
	 System.Text.StringBuilder sb = new StringBuilder();
	 Type type = t.GetType();
	 System.Reflection.PropertyInfo[] propertyInfos = type.GetProperties();
	 for (int i = 0; i < propertyInfos.Length; i++)
	 {
	 sb.Append(propertyInfos[i].Name + ":" + propertyInfos[i].GetValue(t, null) + ",");
	 }
	 return sb.ToString().TrimEnd(new char[] { ',' });
	 }

	 /// <summary>
	 /// 将反射得到字符串转换为对象
	 /// </summary>
	 /// <param name="str">反射得到的字符串</param>
	 /// <returns>实体类</returns>
	 public static T GetEntityStringToEntity(string str)
	 {
	 string[] array = str.Split(',');
	 string[] temp = null;
	 Dictionary<string, string> dictionary = new Dictionary<string, string>();
	 foreach (string s in array)
	 {
	 temp = s.Split(':');
	 dictionary.Add(temp[0], temp[1]);
	 }

	 System.Reflection.Assembly assembly = System.Reflection.Assembly.GetAssembly(typeof(T));
	 T entry = (T)assembly.CreateInstance(typeof(T).FullName);

	 System.Text.StringBuilder sb = new StringBuilder();
	 Type type = entry.GetType();
	 System.Reflection.PropertyInfo[] propertyInfos = type.GetProperties();
	 for (int i = 0; i < propertyInfos.Length; i++)
	 {
	 foreach (string key in dictionary.Keys)
	 {
	 if (propertyInfos[i].Name == key.ToString())
	 {

	 propertyInfos[i].SetValue(entry, GetObject(propertyInfos[i], dictionary[key]), null);
	 break;
	 }
	 }
	 }
	 return entry;
	 }

	
	 /// <summary>
	 /// 转换值的类型
	 /// </summary>
	 /// <param name="p"></param>
	 /// <param name="value"></param>
	 /// <returns></returns>
	 static object GetObject(System.Reflection.PropertyInfo p, string value)
	 {
	 switch (p.PropertyType.Name.ToString().ToLower())
	 {
	 case "int16":
	 return Convert.ToInt16(value);
	 case "int32":
	 return Convert.ToInt32(value);
	 case "int64":
	 return Convert.ToInt64(value);
	 case "string":
	 return Convert.ToString(value);
	 case "datetime":
	 return Convert.ToDateTime(value);
	 case "boolean":
	 return Convert.ToBoolean(value);
	 case "char":
	 return Convert.ToChar(value);
	 case "double":
	 return Convert.ToDouble(value);
	 default:
	 return value;
	 }
	 }

	 }
	}

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