在下面的情况下，如何有效地利用C＃中的子字符串 [英] How do I make use of substring in C# effectively in the below situation

问题描述

我有一个文本文件EventInput.txt，内容为：

---------------------------- ----------------------------

i have a text file EventInput.txt with content:
--------------------------------------------------------

{
   "@odata.type" : "#Event.1.0.0.Event",
   "Events" : 
   [
      {
         "EventID" : "9ea74dad-9e33-5549-b2ea-a80217d82315",
         "EventTimestamp" : "2017-09-07T10:36:47Z",
         "EventType" : "Alert",
         "MessageArgs" : [ "Port 1I Box 1 Bay 5", "Slot 0" ],
         "MessageID" : "iLOEvents.0.9.DrvArrPhysDrvErasing",

         "OriginOfCondition" : 
                   "/rest/v1/Systems/1/SmartStorage/ArrayControllers/2/DiskDrives/20",
         "Severity" : "Warning"
      }
   ],
   "Name" : "Events",
   "Type" : "Event.1.0.0"
}

----------------- ----------------------------------

我需要以下信息在c＃：



EventID = 9ea74dad-9e33-5549-b2ea-a80217d82315

EventTimestamp = 2017-09-07T10：36：47Z

EventType =警报

MessageArgs = Port1I，Box1，Bay 5，Slot 0

MessageID = iLOEvents.0.9.DrvArrPhysDrvErasing

OriginOfCondition = / rest / v1 / Systems / 1 / SmartStorage / ArrayControllers / 2 / DiskDrives / 20

严重性=警告



我尝试了什么：



i已经尝试了以下代码来获取EventTimestamp。您能否提出更好的解决方法：

---------------------------------------------------
I need the following information out of it in c#:

EventID=9ea74dad-9e33-5549-b2ea-a80217d82315
EventTimestamp=2017-09-07T10:36:47Z
EventType=Alert
MessageArgs=Port1I,Box1,Bay 5,Slot 0
MessageID=iLOEvents.0.9.DrvArrPhysDrvErasing
OriginOfCondition=/rest/v1/Systems/1/SmartStorage/ArrayControllers/2/DiskDrives/20
Severity=Warning

What I have tried:

i have tried out the following code for fetching EventTimestamp. Could you please suggest better ways to solve this:

class Program
    {
        static void Main(string[] args)
        {

         string stringEventReceived =System.IO.File.ReadAllText(@"C:\EventInput.txt");
         Console.WriteLine("EVENT LOG FILE text:" + stringEventReceived);
    
       string stringToFind = "EventTimestamp";
       bool stringMatchResult = stringEventReceived.Contains(stringToFind);

       if (stringMatchResult)
       {
           int index = stringEventReceived.IndexOf(stringToFind);
           if (index >= 0)
               Console.WriteLine("{0} begins at character position {1}", stringToFind, index + 1);
       }
       string RESULT = stringEventReceived.Substring(143, 40);
       Console.WriteLine("RESULT TIMESTAMP: \n" + RESULT);
            Console.ReadKey();
        }
    }

推荐答案

您不需要使用子字符串，有一个更简单的解决方案。本文将向您展示如何使用JSON数据：在C＃和amp中使用JSON ; VB [ ^ ]

You don't need to use substring, there is a far simpler solution. This article will show you how to work with JSON data: Working with JSON in C# & VB[^]

试试这个

try this

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text; 
using System.Web.Script.Serialization;

namespace ConsoleApplication1
{
    class Program
    {
        public class RootObject
        {
            public string odatatype { get; set; }
            public List<Event> Events { get; set; }
            public string Name { get; set; }
            public string Type { get; set; }
        }

        public class Event
        {
            public string EventID { get; set; }
            public string EventTimestamp { get; set; }
            public string EventType { get; set; }
            public List<string> MessageArgs { get; set; }
            public string MessageID { get; set; }
            public string OriginOfCondition { get; set; }
            public string Severity { get; set; }
        }

        static void Main(string[] args)
        {
            string path = @"D:\Projects\TextFile1.txt";
            string stringEventReceived = System.IO.File.ReadAllText(path);
            string temp = stringEventReceived.Replace("@odata.type", "odatatype");
            JavaScriptSerializer js = new JavaScriptSerializer();
            var obj = js.Deserialize<RootObject>(temp);

            string EventID = obj.Events[0].EventID;
            string EventTimestamp = obj.Events[0].EventTimestamp;
            string MessageID = obj.Events[0].MessageID;
            string MessageArgs = string.Join(",", obj.Events[0].MessageArgs);
            string OriginOfCondition = obj.Events[0].OriginOfCondition;


        }
    }
}

参考文章in解决方案1 ​​

refer the article in solution 1

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