Azure Functions 脚本编译失败

Question

我正在尝试使用 Docker 创建一个 Azure 函数。当我使用func new 创建函数时，它工作正常，当我转到http://localhost:8182/api/HttpTriggerCSharp?name=John 时，我收到消息

你好，约翰

现在我正在尝试运行同一个项目，但我更改了代码。之前的代码是这样的：

#r "Newtonsoft.Json"

using System.Net;
using Microsoft.AspNetCore.Mvc;
using Microsoft.Extensions.Primitives;
using Newtonsoft.Json;

public static IActionResult Run(HttpRequest req, TraceWriter log)
{
log.Info("C# HTTP trigger function processed a request.");

string name = req.Query["name"];

string requestBody = new StreamReader(req.Body).ReadToEnd();
dynamic data = JsonConvert.DeserializeObject(requestBody);
name = name ?? data?.name;

return name != null
    ? (ActionResult)new OkObjectResult($"Hello, {name}")
    : new BadRequestObjectResult("Please pass a name on the query string or in the request body");
}

现在这是我的新代码：

#r "Newtonsoft.Json"

using System.Net;
using Microsoft.AspNetCore.Mvc;
using Microsoft.Extensions.Primitives;
using Newtonsoft.Json;

public static IActionResult Run(HttpRequest req, TraceWriter log)
{
	log.Info("C# HTTP trigger function processed a request.");

	// Parsing query parameters
	string name = req.GetQueryNameValuePairs()
	.FirstOrDefault(q => string.Compare(q.Key, "name", true) == 0)
	.Value;
	log.Info("name = " + name);

	string numberOfTerms = req.GetQueryNameValuePairs()
	.FirstOrDefault(q => string.Compare(q.Key, "numberOfTerms", true) == 0)
	.Value;
	log.Info("name = " + numberOfTerms);

	// Validating the parameters received
	if (string.IsNullOrWhiteSpace(name) || string.IsNullOrWhiteSpace(numberOfTerms))
	{
	 var errorResponse = req.CreateResponse(HttpStatusCode.BadRequest, 
	                                      "Please pass a name and the number of digits on the query string."); 
	 return errorResponse;
	}

	int termsToShow;
	try
	{
		 termsToShow = Int32.Parse(numberOfTerms);
	}
	 catch (FormatException e)
	{
	 var errorResponse = req.CreateResponse(HttpStatusCode.BadRequest, 
	                                      "The numberOfTerms parameter must be an integer!"); 
	 return errorResponse;
	}

	if (termsToShow < 0 || termsToShow > 100) {
		 var errorResponse = req.CreateResponse(HttpStatusCode.BadRequest, 
	                                      "Please pass a numberOfTerms parameter between 0 and 100."); 
	 return errorResponse;
	}

	// Building the response
	string incompleteResponse = "Hello, " + name + ", you requested the first " + numberOfTerms + " terms of the Fibonacci series. Here they are: ";
	string completeResponse = GenerateFibonacciTerms(incompleteResponse, termsToShow);
	var response = req.CreateResponse(HttpStatusCode.OK, completeResponse); 

	// Returning the HTTP response with the string we created
	log.Info("response = " + response);
	return response;
}

public static string GenerateFibonacciTerms(string incompleteResponse, int termsToShow)
{    
    int a = 0;
    int b = 1;
    string temporalString = "";
    
    for (int i = 0; i < termsToShow; i++)
    {
        int temp = a;
        a = b;
        b = temp + b;
        temporalString = temporalString + temp.ToString() + " ";
    }

	string result = incompleteResponse + temporalString + "- That's it, have an awesome day!";
	return result;    
}

我构建了容器，然后运行它并收到以下消息：

我已经用 VS Code 检查了我的代码（我是在 Sublime Text 中完成的，所以我没有进行代码检查），它发现的所有问题都是相同的错误：

而且我的代码到处都有“错误”：

我该如何解决这个问题？

Answer 1

您使用的是v2功能核心工具（基于.net core），而您更改的代码是针对v1（.net framework）的。

所以你有两个选择：

1. 卸载v2并使用功能核心工具v1。
2. 修改您的代码以使其在 v2 运行时中工作。

这里的代码供您参考。 GenerateFibonacciTerms 方法无需更改。

log.Info("C# HTTP trigger function processed a request.");

// Parsing query parameters
string name = req.Query["name"];
log.Info("name = " + name);

string numberOfTerms = req.Query["numberOfTerms"];
log.Info("numberOfTerms = " + numberOfTerms);

// Validating the parameters received
if (string.IsNullOrWhiteSpace(name) || string.IsNullOrWhiteSpace(numberOfTerms))
{
    return new BadRequestObjectResult("Please pass a name and the number of digits on the query string."); 
}

int termsToShow;
try
{
     termsToShow = Int32.Parse(numberOfTerms);
}
 catch (FormatException e)
{
    return new BadRequestObjectResult("The numberOfTerms parameter must be an integer!"); 
}

if (termsToShow < 0 || termsToShow > 100) {
     return new BadRequestObjectResult("Please pass a numberOfTerms parameter between 0 and 100."); 
}

// Building the response
string incompleteResponse = "Hello, " + name + ", you requested the first " + numberOfTerms + " terms of the Fibonacci series. Here they are: ";
string completeResponse = GenerateFibonacciTerms(incompleteResponse, termsToShow);
var response = new OkObjectResult(completeResponse); 

// Returning the HTTP response with the string we created
log.Info("response = " + response);
return response;