asp.net Post Get提交数据转Model实例

转自：http://blog.csdn.net/daodaowolf/article/details/8990694

此功能是将客户端HTTP协议POST GET方式提交的数据转换为某个Model实例，对于客户端浏览器Ajax提交的键值对或json格式数据直接转换为Model类的实例；

废话不多说，直接贴代码。

/********************************************************************************

** 作者：Tyler

** 创始时间：2013-05-28

** 描述：通过js ajax 或 HTTP其他方式提交的GET,POST数据转换为指定的Model实例

*********************************************************************************/
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Runtime.Serialization.Json;
using System.Web.Script.Serialization;
using System.IO;
using System.Text;
using System.Collections.Specialized;

namespace MyHttpRequest
{
    public class RequestDataToCls
    {
        /// <summary>
        /// Post提交JSON格式转换为实体类
        /// </summary>
        /// <typeparam name="T">类型</typeparam>
        /// <param name="myrequest">Request对象</param>
        /// <returns>T</returns>
        public static T StramTomodelHttpPost<T>(HttpRequest myrequest)
        {
            byte[] byts = new byte[myrequest.InputStream.Length];
            myrequest.InputStream.Read(byts, , byts.Length);
            string jsonstr = System.Text.Encoding.Default.GetString(byts);
            if (!String.IsNullOrEmpty(jsonstr))
            {
                DataContractJsonSerializer ser = new DataContractJsonSerializer(typeof(T));
                    JavaScriptSerializer jss = new JavaScriptSerializer();
                    try
                    {
                        using (MemoryStream ms = new MemoryStream(Encoding.UTF8.GetBytes(jsonstr)))
                        {
                            T jsonObject = (T)ser.ReadObject(ms);
                            return jsonObject;
                        }
                    }
                    catch (Exception ex)
                    {
                        throw new Exception("Serialize Error: " + ex.Message);
                    }
                }
                else
                    throw new Exception("Not KeyValue ");
        }

        /// <summary>
        ///  Post提交Form集合转换为实体类
        /// </summary>
        /// <typeparam name="T">类型</typeparam>
        /// <param name="myrequest">Request对象</param>
        /// <returns>T</returns>
        public static T FormTomodelHttpPost<T>(HttpRequest myrequest)
        {

            DataContractJsonSerializer ser = new DataContractJsonSerializer(typeof(T));
            NameValueCollection coll = myrequest.Form as NameValueCollection;
            IDictionary<string, object> idc = new Dictionary<string, object>();
            foreach (string name in coll.Keys)
            {
                idc.Add(name, coll[name].ToString());
            }
            if (idc.Count > )
            {
                JavaScriptSerializer jss = new JavaScriptSerializer();
                string jsonstr;
                try
                {
                    jsonstr = jss.Serialize(idc);
                    using (MemoryStream ms = new MemoryStream(Encoding.UTF8.GetBytes(jsonstr)))
                    {
                        T jsonObject = (T)ser.ReadObject(ms);
                        return jsonObject;
                    }
                }
                catch (Exception ex)
                {
                    throw new Exception("Serialize Error: " + ex.Message);
                }
            }
            else
                throw new Exception("Not KeyValue ");
        }

        /// <summary>
        /// Get提交JSON格式转换为实体类
        /// </summary>
        /// <typeparam name="T">类型</typeparam>
        /// <param name="myrequest">Request对象</param>
        /// <returns>T</returns>
        public static T StramTomodelHttpGet<T>(string queryString)
        {
            string jsonstr = queryString;
            if (!String.IsNullOrEmpty(jsonstr))
            {
                DataContractJsonSerializer ser = new DataContractJsonSerializer(typeof(T));
                JavaScriptSerializer jss = new JavaScriptSerializer();
                try
                {
                    using (MemoryStream ms = new MemoryStream(Encoding.UTF8.GetBytes(jsonstr)))
                    {
                        T jsonObject = (T)ser.ReadObject(ms);
                        return jsonObject;
                    }
                }
                catch (Exception ex)
                {
                    throw new Exception("Serialize Error: " + ex.Message);
                }
            }
            else
                throw new Exception("Not KeyValue ");
        }

        /// <summary>
        ///  Get提交QueryString集合转换为实体类
        /// </summary>
        /// <typeparam name="T">类型</typeparam>
        /// <param name="myrequest">Request对象</param>
        /// <returns>T</returns>
        public static T FormTomodelHttpGet<T>(HttpRequest myrequest)
        {
            DataContractJsonSerializer ser = new DataContractJsonSerializer(typeof(T));
            NameValueCollection coll = myrequest.QueryString as NameValueCollection;
            IDictionary<string, object> idc = new Dictionary<string, object>();
            foreach (string name in coll.Keys)
            {
                idc.Add(name, coll[name].ToString());
            }
            if (idc.Count > )
            {
                JavaScriptSerializer jss = new JavaScriptSerializer();
                string jsonstr;
                try
                {
                    jsonstr = jss.Serialize(idc);
                    using (MemoryStream ms = new MemoryStream(Encoding.UTF8.GetBytes(jsonstr)))
                    {
                        T jsonObject = (T)ser.ReadObject(ms);
                        return jsonObject;
                    }
                }
                catch (Exception ex)
                {
                    throw new Exception("Serialize Error: " + ex.Message);
                }
            }
            else
                throw new Exception("Not KeyValue ");
        }
    }
}