问

C#Owin WebApp:解析POST请求？

手机用户2602927807 发布于 2023-02-10 14:58

http

我想在C#控制台应用程序中解析HTTP POST请求方面的一些帮助.该应用程序使用Owin运行"网络服务器".此处提供了该应用程序的详细信息,相关代码的当前"稳定版本"在此处.

我正在扩展上述应用程序以通过Web UI启用配置.例如,app当前报告了大量参数.我希望最终用户能够选择通过网络报告哪些参数.为此,我对上面的代码做了一些修改:

    using Microsoft.Owin;
    using Owin;
    .........
    [assembly: OwinStartup(typeof(SensorMonHTTP.WebIntf))]
    .........
    .........
    namespace SensorMonHTTP
    {
      ...
      public class WebIntf
      {
        public void Configuration(IAppBuilder app)
        {
          app.Run(context =>
          {
            var ConfigPath = new Microsoft.Owin.PathString("/config");
            var ConfigApplyPath = new Microsoft.Owin.PathString("/apply_config");
            var SensorPath = new Microsoft.Owin.PathString("/");
            if (context.Request.Path == SensorPath) 
            { 
              return context.Response.WriteAsync(GetSensorInfo()); 
              /* Returns JSON string with sensor information */
            }
            else if (context.Request.Path == ConfigPath)
            {
              /* Generate HTML dynamically to list out available sensor 
                 information with checkboxes using Dynatree: Tree3 under 
                 'Checkbox & Select' along with code to do POST under 
                 'Embed in forms' in 
                 http://wwwendt.de/tech/dynatree/doc/samples.html */
              /* Final segment of generated HTML is as below:
              
              
              
              
              
              
              
              End of generated HTML code */
            }
            else if (context.Request.Path == ConfigApplyPath)
            {
              /* I want to access and parse the POST data here */
              /* Tried looking into context.Request.Body as a MemoryStream, 
                 but not getting any data in it. */
            }
          }
        }
        ........
      }

任何人都可以帮助我在上面的代码结构中如何访问POST数据？

提前致谢!

2 个回答

由于数据以KeyValuePair格式返回,您可以将其转换为IEnumerable,如下所示:

var formData = await context.Request.ReadFormAsync() as IEnumerable<KeyValuePair<string, string[]>>;

//现在您有了可以查询的列表

var formElementValue = formData.FirstOrDefault(x => x.Key == "NameOfYourHtmlFormElement").Value[0]);

2023-02-10 15:00 回答

拉扯作乱_991

您可以在IOwinRequest对象上使用ReadFormAsync（）实用程序来读取/解析表单参数。

public void Configuration(IAppBuilder app)
        {
            app.Run(async context =>
                {
                    //IF your request method is 'POST' you can use ReadFormAsync() over request to read the form 
                    //parameters
                    var formData = await context.Request.ReadFormAsync();
                    //Do the necessary operation here. 
                    await context.Response.WriteAsync("Hello");
                });
        }

2023-02-10 15:00 回答

手机用户2702932960

撰写答案

今天，你开发时遇到什么问题呢？

立即提问

热门标签