Rest API 的 C# 代码只读，将输出到 csv

Question

已更新，但仍显示两个错误。

我得到的文档不是最好的，所以我不相信 Result/Ireadonlylist/HistValueResonseDTO 被定义，除非它是在依赖项之一中定义的。我尝试了以下代码，但出现了两个错误。 1.《严重性代码说明项目文件行抑制状态详细信息》 错误 CS1061“HistValueResponseDto”不包含“标签”的定义，并且找不到接受“HistValueResponseDto”类型的第一个参数的可访问扩展方法“标签”（您是否缺少 using 指令或程序集引用？） ConsoleApp7 C： \用户\jzala\源 epos\ConsoleApp7\Program.cs 89 Active" 和这个。 严重性代码 说明 项目文件行抑制状态详细信息 错误 CS1503 参数 1：无法从“方法组”转换为“对象？” ConsoleApp7 C:\Users\jzala\source epos\ConsoleApp7\Program.cs 89 活动

这是完整的代码。

        namespace ConsoleApp7
{
    using System;
    using System.Collections.Generic;
    using System.Linq;
    using System.IO;
    using System.Numerics;
    using System.Threading.Tasks;
    using CSharpFunctionalExtensions;
    using CsvHelper;
    using Microsoft.IdentityModel.Tokens;
    using Newtonsoft.Json.Linq;
    using Scada.OneView.Api.Client;
    using Scada.OneView.Api.Client.Abstractions;
    using Scada.OneView.Api.Client.Models.HistData;
    using Serilog;
    class Program
    {
        static async Task Main(string[] args)
        {
            // Initialize parameters
            const string oneViewUrl = "http://192.168.1.11/oneview4";
            const string authenticationUrl = "http://192.168.1.11/oneview4/auth/";
            const string username = "XXXX";
            const string password = "XXXXXXX";
            const string logFilePath = @"C:\Users\jzala\Documents\PivotGenPy\test7.txt";

            // Initialize logger
            Log.Logger = new LoggerConfiguration()
            .WriteTo.Console()
            .WriteTo.File(logFilePath)
            .CreateLogger();

            // Put OneView Authentication URL and username/password here
            var authenticationSettings = new OneViewAuthenticationSettings
            {
                AuthUrl = authenticationUrl,
                Username = username,
                Password = password,
                AuthenticationType = AuthenticationType.IdentityAuthentication,
            };

            // Put OneView URL here
            var oneviewSettings = new OneViewClientSettings
            {
                OneViewUrl = oneViewUrl
            };

            // Create single factory for one OneView, using oneview and authentication settings
            using var oneviewClientFactory = new OneViewClientFactory(
            oneviewSettings,
            authenticationSettings,
            Log.Logger);


            //Historical Values
            var unitGuid = new Guid("d6f49127-d710-4730-9aa1-d44846fd5537");
            var tags = new List<string>() { "WCNV.GriA2_10m_Max", "WCNV.GriA2_10m_Min", "WCNV.GriA2_10m_Std" };
            var dateFrom = new DateTime(2024, 3, 1, 10, 0, 0);
            var DateTO = new DateTime(2024, 3, 5, 0, 0, 0);
            const byte amountOfEvents = 90;


            IOneViewClient oneViewClient = oneviewClientFactory.CreateInstance();

            Result<IReadOnlyList<HistValueResponseDto>> tagResults = await oneViewClient.GetHistTagsAsync(unitGuid, tags, dateFrom,
                DateTO, 2, 2);


            if (tagResults.IsFailure)
            {
                // An error occured
                //Log.Logger.Error(tagResults.Error);
                return;
            }

            // Path of output CSV File
            string csvFilePath = "output.csv";

            using (StreamWriter sw = new StreamWriter(csvFilePath))
            {

                sw.WriteLine("Tags,Count");

                // Iterates over the results and writes them into the file
                foreach (var d in tagResults.Value)
                {
                    // Assuming d.Tags is a string and d.Count is an int
                    sw.WriteLine($"{d.Tags},{d.Count}");
                }



                // Parse the response body
                //var dataObjects = tagResults;
                //foreach (var d in dataObjects)
                //{
                //    Console.WriteLine("{0},{0}", d.Tags,d.Count);
                // }

                //Log.Logger.Information("Historical events from OneView");
                //tagResults.Value.ToList().ForEach(tag => 
                //Log.Logger.Information(tagResults);
                // Log.Logger.Information("Finish reading");
            }
        }
    }
}

新代码结束

Answer 1

问题是因为您尝试使用

dataObjects

循环

foreach loop

，但

dataObjects

不符合必要的

IEnumerable

接口。您需要直接访问

tagResults

的 Value 属性才能循环访问

HistValueResponseDto

列表。

要将这些数据保存到

CSV file

，请首先创建文件流，写入标题，然后添加数据行。

这是调整后的代码，它迭代结果并将它们写入

CSV file

。

代码：

using System;
using System.Collections.Generic;
using System.IO;
using System.Threading.Tasks;

// Assuming IOneViewClient, oneviewClientFactory, HistValueResponseDto, and Result<T> are defined elsewhere. Otherwise this won't work.

class Program {
  static async Task Main(string[] args) {
    IOneViewClient oneViewClient = oneviewClientFactory.CreateInstance();

    Result < IReadOnlyList < HistValueResponseDto >> tagResults = await oneViewClient.GetHistTagsAsync(unitGuid, tags, dateFrom, DateTO, 2, 2);

    if (tagResults.IsFailure) {
      return;
    }

    // Path of output CSV File
    string csvFilePath = "output.csv";

    using(StreamWriter sw = new StreamWriter(csvFilePath)) {

      sw.WriteLine("Tags,Count");

      // Iterates over the results and writes them into the file
      foreach(var d in tagResults.Value)
      {
        // Assuming d.Tags is a string and d.Count is an int
        sw.WriteLine($"{d.Tags},{d.Count}");
      }
    }
  }
}