值为c＃中的json字符串 [英] Values frm a json string in c#
问题描述
using System;
using System.Net;
using System.Collections;
using System.Configuration;
using System.Data;
using System.Linq;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.HtmlControls;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Xml.Linq;
using System.Data.SqlClient;
using System.Web.Configuration;
using System.Collections.Generic;
using System.Text;
using System.Security.Cryptography;
using System.IO;
public partial class Food1 : System.Web.UI.Page
{
string selectSQL;
SqlCommand cmd = new SqlCommand();
SqlCommand cmd1 = new SqlCommand();
SqlConnection dbConn = new SqlConnection();
SqlConnection dbConn1 = new SqlConnection();
SqlConnection dbConn2 = new SqlConnection();
SqlConnection dbConn3 = new SqlConnection();
SqlConnection dbConn4 = new SqlConnection();
SqlDataReader dr;
public string dbstring = WebConfigurationManager.ConnectionStrings["DB_SCH"].ConnectionString;
public SqlConnection MyConnection, MyConnection1;
Stream st;
protected void Page_Load(object sender, EventArgs e)
{
string url ="https://stageserv.interswitchng.com/test_paydirect/api/v1/gettransaction.json?";
productid.Value= "6205";
transactionreference.Value = "7654325";
amount.Value = "16700000";
string mac = "D3D1D05AFE42AD50818167EAC73C109168A0F108F32645C8B59E897FA930DA44F9230910DAC9E20641823799A107A02068F7BC0F4CC41D2952E249552255710F";
// https://stageserv.interswitchng.com/test_paydirect/api/v1/gettransaction.json?productid=6205&transactionreference=1234567&amount=3000000
//string ss ="https://stageserv.interswitchng.com/test_paydirect/api/v1/gettransaction.json?productid=21&transactionreference=8421941122&amount=300000";
//string ft = "username=" + amount.Value+"&"+"username=" + amount.Value;
string now = url+"productid=" + productid.Value+"&"+"transactionreference=" + transactionreference.Value+"&"+"amount=" + amount.Value;
//Product_id.Value=(Convert.ToString(productid.Value)).ToString()+(Convert.ToString(transactionreference.Value)).ToString()+(Convert.ToString(amount.Value)).ToString();
string m_Input =(Convert.ToString(productid.Value)).ToString()+(Convert.ToString(transactionreference.Value)).ToString()+mac;
Session["u"] = now;
//Response.Write(m_Input);
// Convert a string to byte
byte[] data = Encoding.UTF8.GetBytes(m_Input );
byte[] hash;
SHA512 shaM = new SHA512Managed();
// Convert byte to SHA512
hash = shaM.ComputeHash(data);
// Append bytes
StringBuilder result = new StringBuilder(hash.Length * 2);
for (int i = 0; i < hash.Length; i++)
result.Append(hash[i].ToString(false ? "X2" : "x2"));
Session["rr"] =result;
Response.Write(result+"<hr>");
//string bs = (Convert.ToString(Session["rr"])).ToString();
}
protected void Button2_Click(object sender, EventArgs e)
{
Response.Write("URL <hr>"+Session["u"].ToString());
try
{
var request = (HttpWebRequest)WebRequest.Create(Session["u"].ToString());
request.Headers.Add("Hash", Session["rr"].ToString());
var response = (HttpWebResponse)request.GetResponse();
Stream dataStream = response.GetResponseStream();
StreamReader reader = new StreamReader(dataStream);
// Read the content.
string responseFromServer = reader.ReadToEnd();
Response.Write("<br>Result<br>" + responseFromServer.ToString() + "<br>Result<br>");
}
catch (Exception et)
{
Response.Write("Error "+et.ToString());
}
}
}
我得到的回复是
The response i get is
{"Amount":16700000,"CardNumber":"0095","MerchantReference":"7654325","PaymentReference":"FBN|WEB|WEBP|3-02-2016|170619","RetrievalReferenceNumber":"000000088836","LeadBankCbnCode":null,"LeadBankName":null,"SplitAccounts":[],"TransactionDate":"2016-02-03T16:41:43.923","ResponseCode":"00","ResponseDescription":"Approved Successful"}
我如何获得交易日期，ResponseDescription和交易日期的值c sharp，请我需要代码
我尝试了什么：
值来自C＃中的JSON字符串
how do i get the values of Transaction Date,ResponseDescription and Transaction date in c sharp ,please i need the code
What I have tried:
values frm a JSON string in C#
推荐答案
1 - Download the Newtonsoft JSON DLL (or set up a Nuget fetch)
2 - Add the reference to your project
3 - Create a class (Transaction) with properties that match the names of the JSON fields.
Conversion becomes:
Transaction t = Json.JsonConvert.DeserializeObject<Transaction>(the JSON string)
Examples and more detail on Newtonoft's site.
反序列化对象 [ ^ ]
回应不理解的评论。
1 - 。 Net框架（还）没有一个库，它提供了从JSON字符串到C＃对象的轻松转换。
2 - Newtonsoft（按照上面的链接到网站并且已经找到了）提供了一个DLL（库） 。它可以免费下载。下载它。获取正在使用的.Net版本的正确版本。
3 - 在项目中添加对Newtonsoft DLL的引用，如果您不知道如何执行此操作，请参阅MSDN。 br />
使用它：
我们只需要你的JSON字符串中的前几个字段来制作示例简单。
Deserialize an Object[^]
In response to "don't understand" comment.
1 - The .Net framework doesn't (yet) have a library that provides easy translation from JSON string to C# object.
2 - Newtonsoft (follow link above to website and have poke around) provide a DLL (library). It is free to download. Download it. Get the right version for the version of .Net that you are using.
3 - Add a reference to the Newtonsoft DLL to your project, see MSDN if you don't know how to do this.
To use it:
We'll take just the first few fields in your JSON string to make the example simple.
{'Amount':16700000,'CardNumber':'0095','MerchantReference':'7654325'}
创建一个具有与名称匹配的属性的事务（或您选择的任何其他名称）你的JSON字符串中的字段。
Create a class Transaction (or any other name that you choose) that has properties that match the names of the fields in your JSON string.
Class Transaction {
Public Long Amount {get; set;}
Public String CardNumber {get; set;}
Public String MerchantReference {get; set;}
}
转换的代码是......
And the code to convert is...
String json = @"{'Amount':16700000,'CardNumber':'0095','MerchantReference':'7654325'}";
Transaction t = Json.JsonConvert.DeserializeObject<Transaction>(json);
交易对象t将具有你想要的价值。
And the transaction object t will have the values you want.
Console.WriteLine(t.CardNumber);
Console.WriteLine(t.Amount);
Console.WriteLine(t.MerchantReference);
公共类帮助
{
public int Amount {get;组; }
公共对象CardNumber {get;组; }
}
String json = responseFromServer.ToString（）;
帮助h = Json.JsonConvert.DeserializeObject< help>（json）;
控制台。的WriteLine（h.CardNumber）; - 此行错误
无效的令牌'（'在类，结构或接口成员声明中
public class Help
{
public int Amount { get; set; }
public object CardNumber { get; set; }
}
String json = responseFromServer.ToString();
Help h = Json.JsonConvert.DeserializeObject<help>(json);
Console.WriteLine(h.CardNumber); - error on this line
Invalid token '(' in class, struct, or interface member declaration
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