using?System;
using?System.Collections;
using?System.Collections.Generic;
using?System.IO;
using?System.Net;
using?System.Net.Cache;
using?System.Text;
using?System.Threading.Tasks;
using?System.Web;
using?System.xml;
using?System.xml.Serialization;

namespace?ivw.Common
{
????///?

????///?HttpHelper
????///?

????public?class?HttpHelper
????{
????????#region?string?Get（String?sUri）
????????///?

????????///?Get
????????///?

????????///?
????????///?
????????public?static?string?Get（String?sUri）
????????{
????????????string?sRet?=?string.Empty;
????????????try
????????????{
????????????????HttpWebRequest?httpWebRequest?=?（HttpWebRequest）WebRequest.Create（sUri）;
????????????????httpWebRequest.Method?=?“GET“;
????????????????HttpWebResponse?httpWebResponse?=?（HttpWebResponse）httpWebRequest.GetResponse（）;
????????????????using?（Stream?stream?=?httpWebResponse.GetResponseStream（））
????????????????{
????????????????????using?（StreamReader?streamReader?=?new?StreamReader（stream））
????????????????????{
????????????????????????sRet?=?streamReader.ReadToEnd（）;
????????????????????}
????????????????}
????????????}
????????????catch?（Exception?ex）
????????????{
????????????????sRet?=?ex.Message;
????????????}
????????????return?sRet;
????????}
????????#endregion

????????#region?string?Get（String?sUri?Dictionaryject>?dicParams）
????????///?

????????///?Get
????????///?

????????///?
????????///?
????????///?
????????public?static?string?Get（String?sUri?Dictionaryject>?dicParams）
????????{
????????????string?sRet?=?string.Empty;
????????????try
????????????{
????????????????StringBuilder?sb?=?new?StringBuilder（）;
????????????????int?i?=?0;
????????????????foreach?（var?item?in?dicParams）
????????????????{
????????????????????if?（i?>?0）
????????????????????{
????????????????????????sb.Append（“&“）;
????????????????????}
????????????????????sb.AppendFormat（“{0}={1}“?item.Key?item.Value）;
????????????????????i++;
????????????????}
????????????????if?（sUri.Substring（sUri.Length?-?1?1）?==?“?“）//判斷最后一個字符是否是？號
????????????????{
????????????????????sUri?+=?$“{sb.ToString（）}“;
????????????????}
????????????????else
????????????????{
????????????????????sUri?+=?$“?{sb.ToString（）}“;
????????????????}

????????????????HttpWebRequest?httpWebRequest?=?（HttpWebRequest）WebRequest.Create（sUri）;
????????????????httpWebRequest.Method?=?“GET“;
????????????????HttpWebResponse?httpWebResponse?=?（HttpWebResponse）httpWebRequest.GetResponse（）;
????????????????using?（Stream?stream?=?httpWebResponse.GetResponseStream（））
????????????????{
????????????????????using?（StreamReader?streamReader?=?new?StreamReader（stream））
????????????????????{
????????????????????????sRet?=?streamReader.ReadToEnd（）;
???