将一个简单对象转为Json字符串.

将一个简单对象转为Json字符串.
转换时,只对属性,成员变量做转换.

using System;
using System.Collections.Generic;
using System.Text;
using System.Reflection;
namespace ObjectToJson
{
public class ObjectToJson
{
private Object _Ins;
/// <summary>
///
/// </summary>
/// <param name="ins">简单对象</param>
public ObjectToJson(object ins)
{
_Ins = ins;
}
/// <summary>
/// 输入Json字符串
/// </summary>
/// <returns></returns>
public string ToJsonString()
{
return ToJsonScring(_Ins);
}
/// <summary>
/// 输入Json字符串
/// </summary>
/// <param name="ins"></param>
/// <returns></returns>
private string ToJsonScring(object ins)
{
Type a = ins.GetType();
StringBuilder sb = new StringBuilder();
sb.Append("{");
MemberInfo[] mis = a.GetMembers();
foreach (MemberInfo mi in mis)
{
object mival = GetMemberValue(ins, mi);
if (mival != null)
{
sb.Append("\"");
sb.Append(mi.Name);
sb.Append("\":\"");
string mivaltypename = mival.GetType().Name.ToUpper();
sb.Append(mival.ToString());
sb.Append("\",");
}
}
sb.Remove(sb.Length - 1, 1);
sb.Append("}");
if (sb.Length > 2)
return sb.ToString();
else
return "";
}
/// <summary>
/// 取一个字段或属性的值.
/// </summary>
/// <param name="ins"></param>
/// <param name="member"></param>
/// <returns></returns>
private object GetMemberValue(object ins, MemberInfo member)
{
Type a = ins.GetType();
try
{
return a.InvokeMember(member.Name, BindingFlags.GetProperty | BindingFlags.GetField, null, ins, null);
}
catch
{
return null;
}
}
}
}