c# - Rest API Get请求带Json参数

Question

我有一个任务，我需要使用复杂类型参数请求Web api GET请求，我想我们无法执行GET请求之类的事情希望所有内容都通过 URL 共享。

任何人都可以帮助我实现这一目标吗？通过 C# 使用带有 JSON 数据的 Web API GET 请求。

消费者控制台:

class Program
    {
        static void Main(string[] args)
        {
            try
            {
                // Need to pass this through GET Request
                var employee = new Employee() { EmployeeId = 1, EmployeeName = "Test", Designation = "Developer", Salary = 100 };
                var jsonParam = JsonConvert.SerializeObject(employee);
                //


                var request = (HttpWebRequest)WebRequest.Create("http://localhost:52237/Values/GetEmp");                

                var encoding = new UTF8Encoding();
                var bytes = encoding.GetBytes(jsonParam);

                request.Method = "GET";
                request.ContentLength = bytes.Length;
                request.ContentType = "application/json";

                using (var writeStream = request.GetRequestStream())
                {
                    writeStream.Write(bytes, 0, bytes.Length);
                }

                using (var response = (HttpWebResponse)request.GetResponse())
                {
                    var responseValue = string.Empty;

                    if (response.StatusCode == HttpStatusCode.OK)
                    {
                        // grab the response
                        using (var responseStream = response.GetResponseStream())
                        {
                            if (responseStream != null)
                                using (var reader = new StreamReader(responseStream))
                                {
                                    responseValue = reader.ReadToEnd();
                                }
                        }
                    }
                }              
            }
            catch (Exception ex)
            {
                Console.WriteLine(ex.Message);
            }
        }
    }
    public class Employee
    {
        public int EmployeeId { get; set; }
        public string EmployeeName { get; set; }
        public int Salary { get; set; }
        public string Designation { get; set; }
    }

Web API:

public class ValuesController : ApiController
    {        
        [HttpGet]
        [Route("api/GetEmp")]
        public Employee GetEmp([FromUri]Employee employee)
        {
            // Getting employee object from client

            // Yet to implement

            if (employee != null)
            {
                employee.Designation = "Engineer";
            }
            return employee;
        }
    }

    public class Employee
    {
        public int EmployeeId { get; set; }
        public string EmployeeName { get; set; }
        public int Salary { get; set; }
        public string Designation { get; set; }
    }

提前致谢。

Answer 1

我认为在HTTP 1.1版本之后你也可以在GET请求的body中发送数据。因此，您可以使用 [FromBody] 来代替 [FromUri]。

    [HttpGet]
    [Route("api/GetEmp")]
    public Employee GetEmp([FromBody]Employee employee)
    {
        // Getting employee object from client

        // Yet to implement

        if (employee != null)
        {
            employee.Designation = "Engineer";
        }
        return employee;
    }