ASP.NET 项目获取json,config文件中的配置数据

本文内容如下：

一 .Net core Web项目获取Json配置文件

二 .Net framework  Web项目获取Config配置文件

三. .Net framework  控制台程序获取Config配置文件

一  .Net core Web项目获取Json配置文件

appsettings.json文件内容如下：

{
  "ConnectionStrings": {
    "DefaultConnection": "User ID=aaa;Password=bbb;Data Source=ccc;Initial Catalog=acc_inventory;Persist Security Info=True;"
  },
  "AppSettings": {
    "StorageConnectionstring": "DefaultEndpointsProtocol=https;AccountName=accazchannel;AccountKey=ddddddddddddd;EndpointSuffix=eeeeeeeeeeee",
    "ContainerName": "test"
  },
  "Logging": {
    "LogLevel": {
      "Default": "Warning"
    }
  },
  "AllowedHosts": "*",
  "UseRowNumberForPaging": true
}

方式一：

1. 建立CS文件ConModel.cs，添加如下代码

    public class ConModel
    {
        public static string DefaultConnection { get; set; }
        public static  string StorageConnectionstring { get; set; }
        public static  string ContainerName { get; set; }
    }

2. 在Startup.cs文件中，在ConfigureServices中添加如下代码

        public void ConfigureServices(IServiceCollection services)
        {
            //为ConModel中的变量赋值
            var DefaultConnection = Configuration.GetConnectionString("DefaultConnection");
            var StorageConnectionstring = Configuration.GetSection("AppSettings")["StorageConnectionstring"];
            var ContainerName = Configuration.GetSection("AppSettings")["ContainerName"];
            ConModel.DefaultConnection = DefaultConnection;
            ConModel.StorageConnectionstring = StorageConnectionstring;
            ConModel.ContainerName = ContainerName;

            services.Configure<CookiePolicyOptions>(options =>
            {
                // This lambda determines whether user consent for non-essential cookies is needed for a given request.
                options.CheckConsentNeeded = context => true;
                options.MinimumSameSitePolicy = SameSiteMode.None;
            });
            services.AddMvc().SetCompatibilityVersion(CompatibilityVersion.Version_2_1);
        }

 3. 通过ConModel.DefaultConnection， ConModel.StorageConnectionstring， ConModel.ContainerName即可获得Json文件中的相关内容

方式二：

1. 新建AppSettings.cs文件，添加如下代码

    public class AppSettings
    {
        public  string StorageConnectionstring { get; set; }
        public  string ContainerName { get; set; }
    }

2. 在Startup.cs文件中，在ConfigureServices中添加如下代码

        public void ConfigureServices(IServiceCollection services)
        {
            services.Configure<CookiePolicyOptions>(options =>
            {
                // This lambda determines whether user consent for non-essential cookies is needed for a given request.
                options.CheckConsentNeeded = context => true;
                options.MinimumSameSitePolicy = SameSiteMode.None;
            });

            // 将config里的参数加到AppSettings文件中
            services.AddOptions();
            services.Configure<AppSettings>(Configuration.GetSection("AppSettings"));
            services.Configure<AppSettings>(Configuration.GetSection("ConnectionStrings"));

            services.AddMvc().SetCompatibilityVersion(CompatibilityVersion.Version_2_1);
        }

3. 添加引用 using Microsoft.Extensions.Options;

    在每个Controller中添加如下代码即可

public class DefaultController : Controller
{
  private static string DefaultConnection { get; set; }
  private static string StorageConnectionstring { get; set; }
  private static string containerName { get; set; }
  public DefaultController(IOptions<AppSettings> setting)
 {
   DefaultConnection= setting.Value.DefaultConnection;
   StorageConnectionstring = setting.Value.StorageConnectionstring;
   containerName = setting.Value.ContainerName;
 }

 public IActionResult Index()
 {
   string def = DefaultConnection;
   string sto = StorageConnectionstring;
   string con = containerName;
   return View();
 }
}

二  .Net framework  Web项目获取Config配置文件

config文件如下：

 

<configuration>
  <connectionStrings>
    <add name="TestConnectionString" connectionString="data source=aaaaaaaaaa;initial catalog=ACC_CBDChannel_V2;user id=cbd;pwd=windows2)))" providerName="System.Data.SqlClient" />
  </connectionStrings>
  <appSettings>
    <add key="ReportUser" value="king2_chen,mxk668_meng" />
  </appSettings>
</configuration>

 

获取相关数据代码：

添加引用：using System.Configuration;

 

private static string TestConnectionString = ConfigurationManager.ConnectionStrings["TestConnectionString"].ToString();
private static string ReportUser = ConfigurationManager.AppSettings["ReportUser"].ToString();

 

三.  .Net framework  控制台程序获取Config配置文件

Config文件如下：

  <appSettings>
    <add key="DefaultConnection" value="User ID=acc_inventory;Password=aaaaaaaaaaaaa;Data Source=abbbbbbbbbbbbbbb;Initial Catalog=acc_inventory;Persist Security Info=True;" />
  </appSettings>

获取相关数据代码如下：

添加引用：using System.Configuration;

  string DefaultConnection=ConfigurationSettings.AppSettings["DefaultConnection"];