我想在.NET Core的字符串中将C#对象序列化为JSON.
我已尝试使用此代码,但它会生成带引号的转义字符的字符串:
string s = JsonConvert.SerializeObject(sensorData);
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这是结果字符串:
"{\"Id\":\"100201\",\"Timestamp\":\"2018-02-08T08:43:51.7189855Z\",\"Value\":12.3}"
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如何在没有像这样的转义字符的情况下将对象序列化为字符串?
"{"Id":"100201","Timestamp":"2018-02-08T08:43:51.7189855Z","Value":12.3}"
Run Code Online (Sandbox Code Playgroud) 我已使用默认模板从 VS 2022 创建了 ASP.NET Core 3.1 Web 应用程序,并选择 Microsoft Identity 来使用 Azure AD 身份验证。向导在我的 Azure AD 租户中生成了应用程序注册,一切看起来都很好(回复 URL 等)
当我从调试器运行新生成的 Web 应用程序时,系统会提示我输入 Azure AD 凭据,然后重定向回我的应用程序并出现以下异常:
Exception: Unable to unprotect the message.State.
Unknown location
Exception: An error was encountered while handling the remote login.
Microsoft.AspNetCore.Authentication.RemoteAuthenticationHandler<TOptions>.HandleRequestAsync()
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请注意,我没有添加或修改任何代码。它是 100% 由 VS2022 模板生成的。
我已按照此处概述的步骤创建了Azure IoT Edge设备:
https://docs.microsoft.com/zh-cn/azure/iot-edge/quickstart-linux
创建部署并检查IoT Edge设备时,我看到以下错误消息:
417 - This device has an empty configuration for the edge agent. Please set a deployment manifest.
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我想念什么?
我正在测试新的Azure IoT Edge V2。我需要使用--device选项运行部署到边缘设备的Docker映像,如下所示(访问串行端口):
$ docker run --device=/dev/serial/by-id/usb-ELT_SENSOR_EK100_V1.0_SN000001-if00-port0 olavt.azurecr.io/testco2sensor-arm32
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--device从Azure门户创建新部署时如何指定选项?
我有一个 .NET Core 3.1 控制台应用程序,希望使用 appsettings.json 中指定的连接字符串来配置它。
这是测试应用程序的代码:
static void Main(string[] args)
{
var configurationBuilder = new ConfigurationBuilder()
.SetBasePath(Directory.GetCurrentDirectory())
.AddJsonFile("appsettings.json")
.AddEnvironmentVariables();
// To be able to read configuration from .json files
var configuration = configurationBuilder.Build();
// Create the DI container.
IServiceCollection services = new ServiceCollection();
services.AddApplicationInsightsTelemetryWorkerService();
// Build ServiceProvider.
IServiceProvider serviceProvider = services.BuildServiceProvider();
// Obtain TelemetryClient instance from DI, for additional manual tracking or to flush.
var telemetryClient = serviceProvider.GetRequiredService<TelemetryClient>();
telemetryClient.TrackTrace("Hello, world 3!");
// Explicitly call Flush() followed by sleep …Run Code Online (Sandbox Code Playgroud) 给出以下 C# 代码:
\nusing Newtonsoft.Json;\nusing System;\n\nnamespace ConsoleApp2\n{\n internal class Program\n {\n public class BatteryStatus\n {\n // The battery level reports percentage of the full battery.The field can take values from 0 to 100% (0x00 \xe2\x80\x93 0x64).\n // The value 0xFF indicates a battery low warning.\n public byte BatteryLevel { get; set; }\n\n public bool LowBatteryWarning { get; set; }\n\n public DateTime TimestampUtc { get; set; }\n\n public BatteryStatus(byte batteryLevel)\n {\n TimestampUtc = DateTime.UtcNow;\n if (batteryLevel == 0xff)\n {\n LowBatteryWarning …Run Code Online (Sandbox Code Playgroud)