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;
                        }
                }
        }
}