using System;using System.Collections;using System.Collections.Generic;using System.Text;using UnityEngine;using UnityEngine.Networking;
public class HttpRestful : MonoBehaviour{    private static HttpRestful _instance;
    public static HttpRestful Instance    {        get        {            if(_instance == null)            {                GameObject goRestful = new GameObject("HttpRestful");                _instance = goRestful.AddComponent<HttpRestful>();            }            return _instance;        }    }
    #region Get請求    /// <summary>    /// Get請求    /// </summary>    /// <param name="url"></param>    /// <param name="actionResult"></param>    public void Get(string url, Action<bool, string> actionResult = null)    {        StartCoroutine(_Get(url, actionResult));    }
    private IEnumerator _Get(string url, Action<bool, string> action)    {        using (UnityWebRequest request = UnityWebRequest.Get(url))        {            yield return request.SendWebRequest();
            string resstr = "";            if (request.isNetworkError || request.isHttpError)            {                resstr = request.error;            }            else            {                resstr = request.downloadHandler.text;            }
            if (action != null)            {                action(request.isHttpError, resstr);            }        }    }    #endregion

    #region POST請求    public void Post(string url, string data, Action<bool, string> actionResult = null)    {        StartCoroutine(_Post(url, data, actionResult));    }
    private IEnumerator _Post(string url, string data, Action<bool, string> action)    {        using (UnityWebRequest request = new UnityWebRequest(url, "POST"))        {            request.uploadHandler = new UploadHandlerRaw(Encoding.UTF8.GetBytes(data));            request.SetRequestHeader("content-type", "application/json;charset=utf-8");            request.downloadHandler = new DownloadHandlerBuffer();
            yield return request.SendWebRequest();
            string resstr = "";            if (request.isNetworkError || request.isHttpError)            {                resstr = request.error;            }            else            {                resstr = request.downloadHandler.text;            }
            if (action != null)            {                action(request.isHttpError, resstr);            }        }    }     #endregion}

HttpRestful.Instance.Get(url, actionRes);HttpRestful.Instance.Post(url, json, actionRes);

using System;using System.Collections;using System.Collections.Generic;using System.ComponentModel;using System.Linq;using System.Text;using UnityEngine;using UnityEngine.Networking;using UnityEngine.UI;
public class UIScripts : MonoBehaviour{    [Header("按鈕")]    public Button btnget;    public Button btngetparm;    public Button btnjson;    public Button btnpost;
    [Space]    [Header("顯示")]    public Text txtshow;
    [Space]    [Header("輸入框")]    public InputField edturl;    public InputField edtparm;
    //定義一個返回數據的Action    private Action<bool, string> actionRes;    // Start is called before the first frame update    void Start()    {        InitAction();
        //Get按鈕操作        btnget.onClick.AddListener(() =>        {            Debug.Log(edturl.text);            string url = edturl.text;            HttpRestful.Instance.Get(url, actionRes);        });        btngetparm.onClick.AddListener(() =>        {            string url = edturl.text;            string param = edtparm.text;
            string allurl = url + "/Info?Summary=" + param;            HttpRestful.Instance.Get(allurl, actionRes);        });
        btnjson.onClick.AddListener(() => StartCoroutine(JsonConvert()));
        btnpost.onClick.AddListener(() =>        {            WeatherForecast item = new WeatherForecast();            item.Summary = "Alvin";            item.Date = DateTime.Now;            item.TemperatureC = 10;            item.TemperatureF = 20;            string json = JsonUtility.ToJson(item);
            string url = edturl.text + "/Reg";            Debug.Log(url);            HttpRestful.Instance.Post(url, json, actionRes);        });    }
    /// <summary>    /// 寫返回Action的處理方法    /// </summary>    private void InitAction()    {        actionRes = new Action<bool, string>((bl, str) =>        {            if (bl)            {                txtshow.text = str;            }            else            {                string resjson = "{\"array\":" + str + "}";                txtshow.text = resjson;                WeatherData lists = JsonUtility.FromJson<WeatherData>(resjson);                StringBuilder sb = new StringBuilder();                foreach (WeatherForecast item in lists.array)                {                    sb.Append("Date:" + item.Date + " Summary:" + item.Summary + " TemperatureF:"                        + item.TemperatureF + "TemperatureC:" + item.TemperatureC + "\r\n");                }                txtshow.text = sb.ToString();            }        });    }
    IEnumerator JsonConvert()    {        WeatherForecast item = new WeatherForecast();        item.Summary = "Alvin";        item.Date = DateTime.Now;        item.TemperatureC = 10;        item.TemperatureF = 20;
        string json = JsonUtility.ToJson(item);        txtshow.text = json;        yield return new WaitForSeconds(3f);
        WeatherForecast newitem = JsonUtility.FromJson<WeatherForecast>(json);        string showtext = "Summary:" + newitem.Summary + "  Date:" + newitem.Date +            "  C:" + newitem.TemperatureC + "  F:" + newitem.TemperatureF;        txtshow.text = showtext;    }}