C＃中的Swift MT940解析器

Question

如何使用C＃解析MT940快速消息？以下是我必须解析的消息：

:20:MT940-1411201901
:25:1234567837710016 
:28C:008/201
:60F:C171224SAR145597,13
:61:2107221722D17000,NCHK219120//14218-102431Abnamb
:61:2107221722D17000,NCHK219120//14218-102431Abnamb VSP
:62F:C291124SAR145597,13

我该怎么实现？

Answer 1

尝试如下代码：

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.IO;

namespace ConsoleApplication1
{
    class Program
    {
        const string FILENAME = @"c:\temp\test.txt";
        static void Main(string[] args)
        {
            MT940 mt940 = new MT940(FILENAME); 
        }
    }
    public class MT940
    {
        public MT940(string filename)
        {
            StreamReader reader = new StreamReader(filename);
            string line = "";
            int transactionCount = 0;
            while ((line = reader.ReadLine()) != null)
            {
                if(line.StartsWith(":"))
                {
                    string[] splitLine = line.Split(new char[] {':'}, StringSplitOptions.RemoveEmptyEntries).ToArray();

                    switch(splitLine[0])
                    {
                        case "20":
                            senderReference = splitLine[1];
                            break;

                        case "25" :
                            authorisation = splitLine[1];
                            break;

                        case "28C" :
                            messageIndexTotal = splitLine[1];
                            break;

                        case "60F":
                            openingBalance = splitLine[1];
                            break;
                        case "61":
                            if (++transactionCount == 1)
                            {
                                firstTransaction = splitLine[1];
                            }
                            else
                            {
                                secondTransaction = splitLine[1];
                            }
                            break;

                        case "62F":
                            closingBalance = splitLine[1];
                            break;
                        default :
                            break;
                    }
                }
            }
        }

        public string senderReference { get; set; }  //code 20
        public string authorisation { get; set; } // tag 25
        public string messageIndexTotal { get; set; } //tag 28D
        public string openingBalance { get; set; }  //60F
        public string firstTransaction { get; set; } //61
        public string secondTransaction { get; set; } //61
        public string closingBalance { get; set; } //62F
    }
}