我正在使用 Azure Function 中的实体框架执行非常简单的
Insert
操作,但无法理解为什么会出现错误。以下是不同文件的代码片段:
LoggingMiddleware.cs
public class LoggingMiddleware : ILoggingMiddleware
{
private readonly AppsContext _context;
public LoggingMiddleware(AppsContext context)
{
_context = context;
}
public async Task LogRequestAsync(HttpContext httpContext)
{
try
{
var requestHeaders = string.Join(Environment.NewLine, httpContext.Request.Headers.Select(header => $"{header.Key} = {header.Value}"));
using var reader = new StreamReader(httpContext.Request.Body);
string requestBody = await reader.ReadToEndAsync();
var httpRequestApiLog = new HttpRequestApiLog
{
Url = httpContext.Request.GetDisplayUrl(),
RequestMethod = httpContext.Request.Method,
RequestHeaders = requestHeaders,
RequestBody = requestBody
};
_context.HttpRequestApiLogs.Add(httpRequestApiLog);
await _context.SaveChangesAsync();
}
catch (Exception)
{
throw;
}
}
}
Azure 功能:
private readonly ILoggingMiddleware _loggingMiddleware;
public async Task<IActionResult> Run(
[HttpTrigger(AuthorizationLevel.Function, "post", Route = null)] HttpRequest req,
ILogger log)
{
log.LogInformation("C# HTTP trigger function processed a request.");
await _loggingMiddleware.LogRequestAsync(req.HttpContext);
// Other lines of code
}
异常发生在行:
await _context.SaveChangesAsync();
下面的文件被打开,我不知道它在做什么并抛出异常。以下片段来自文件
SNINativeMethodWrapper.cs
我应该怎样做才能解决这个问题并让自己继续前进?两天来一直被这个问题困扰,并尝试了互联网上所有可能的答案。
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