unity簡單http案例 + 服務端

客戶端

using System;
using System.Collections;
using System.Collections.Generic;
using System.Net;
using System.Text;
using System.Threading;
using Newtonsoft.Json;
using UnityEngine;

public class TestHttp : MonoBehaviour
{
    private WebClient wc;
    private string url = "http://localhost:8079";
    private Thread thread;
    
    // Start is called before the first frame update
    void Start()
    {
        CreateWebClient();
        thread = new Thread(SendHttpMsg);
        Debug.Log("按K鍵發送消息");
    }

    // Update is called once per frame
    void Update()
    {
        if (Input.GetKeyDown(KeyCode.K))
        {
            //異步
            Action ac = SendHttpMsg;
            ac.BeginInvoke(null,null);
            
            //同步
            //SendHttpMsg();

            //線程
            //thread.Start();
        }
    }

    void CreateWebClient()
    {
        wc = new WebClient();
    }
    
    /// <summary>
    /// 向服務器發送消息
    /// </summary>
    void SendHttpMsg()
    {
        Debug.Log($"請求服務地址:{url}，時間：{DateTime.Now.ToString()}");
        //模擬一個json數據發送到服務端
        var data = new Data(1, "張三");
        var jsonModel = JsonConvert.SerializeObject(data);
        //發送到服務端並獲得返回值
        byte[] returnInfo;
        try
        {
            returnInfo = wc.UploadData(url, Encoding.UTF8.GetBytes(jsonModel));
        }
        catch (Exception e)
        {
            Debug.LogError("url可能不對，或者遠程服務器關閉，或者連接失敗");
            Debug.LogError(e);
            return;
        }
        //把服務端返回的信息轉成字符串
        var str = Encoding.UTF8.GetString(returnInfo);
        Debug.Log($"服務端返回信息：{str},時間：{DateTime.Now.ToString()}");
    }
}

class Data
{
    public Data(int id, string name)
    {
        this.ID = id;
        this.Name = name;
    }
    public int ID { get; set; }

    public string Name { get; set; }
}

 

服務端

using System;
using System.Collections.Generic;
using System.Net;
using System.Text;

namespace HttpServer
{
    internal class Program
    {
        static HttpListener httpobj;
        public static void Main(string[] args)
        {
            //提供一個簡單的、可通過編程方式控制的 HTTP 協議偵聽器。此類不能被繼承。
            httpobj = new HttpListener();
            //定義url及端口號，通常設置為配置文件
            //httpobj.Prefixes.Add("http://+:8089/");
            httpobj.Prefixes.Add("http://localhost:8079/");


            //啟動監聽器
            httpobj.Start();
            //異步監聽客戶端請求，當客戶端的網絡請求到來時會自動執行Result委托
            //該委托沒有返回值，有一個IAsyncResult接口的參數，可通過該參數獲取context對象
            httpobj.BeginGetContext(Result, null);
            Console.WriteLine($"服務端初始化完畢，正在等待客戶端請求,時間：{DateTime.Now.ToString()}\r\n");
            Console.ReadKey();
        }
        
        private static void Result(IAsyncResult ar)
        {
            //當接收到請求后程序流會走到這里

            //繼續異步監聽
            httpobj.BeginGetContext(Result, null);
            var guid = Guid.NewGuid().ToString();
            Console.ForegroundColor = ConsoleColor.White;
            Console.WriteLine($"接到新的請求:{guid},時間：{DateTime.Now.ToString()}");
            //獲得context對象
            var context = httpobj.EndGetContext(ar);
            var request = context.Request;
            var response = context.Response;
            ////如果是js的ajax請求，還可以設置跨域的ip地址與參數
            //context.Response.AppendHeader("Access-Control-Allow-Origin", "*");//后台跨域請求，通常設置為配置文件
            //context.Response.AppendHeader("Access-Control-Allow-Headers", "ID,PW");//后台跨域參數設置，通常設置為配置文件
            //context.Response.AppendHeader("Access-Control-Allow-Method", "post");//后台跨域請求設置，通常設置為配置文件
            context.Response.ContentType = "text/plain;charset=UTF-8";//告訴客戶端返回的ContentType類型為純文本格式，編碼為UTF-8
            context.Response.AddHeader("Content-type", "text/plain");//添加響應頭信息
            context.Response.ContentEncoding = Encoding.UTF8;
            string returnObj = null;//定義返回客戶端的信息
            if (request.HttpMethod == "POST" && request.InputStream != null)
            {
                //處理客戶端發送的請求並返回處理信息
                returnObj = HandleRequest(request, response);
            }
            else
            {
                returnObj = $"不是post請求或者傳過來的數據為空";
            }
            var returnByteArr = Encoding.UTF8.GetBytes(returnObj);//設置客戶端返回信息的編碼
            try
            {
                using (var stream = response.OutputStream)
                {
                    //把處理信息返回到客戶端
                    stream.Write(returnByteArr, 0, returnByteArr.Length);
                }
            }
            catch (Exception ex)
            {
                Console.ForegroundColor = ConsoleColor.Red;
                Console.WriteLine($"網絡蹦了：{ex.ToString()}");
            }
            Console.ForegroundColor = ConsoleColor.Yellow;
            Console.WriteLine($"請求處理完成：{guid},時間：{ DateTime.Now.ToString()}\r\n");
        }

        private static string HandleRequest(HttpListenerRequest request, HttpListenerResponse response)
        {
            string data = null;
            try
            {
                var byteList = new List<byte>();
                var byteArr = new byte[2048];
                int readLen = 0;
                int len = 0;
                //接收客戶端傳過來的數據並轉成字符串類型
                do
                {
                    readLen = request.InputStream.Read(byteArr, 0, byteArr.Length);
                    len += readLen;
                    byteList.AddRange(byteArr);
                } while (readLen != 0);
                data = Encoding.UTF8.GetString(byteList.ToArray(),0, len);

                //獲取得到數據data可以進行其他操作
            }
            catch (Exception ex)
            {
                response.StatusDescription = "404";
                response.StatusCode = 404;
                Console.ForegroundColor = ConsoleColor.Red;
                Console.WriteLine($"在接收數據時發生錯誤:{ex.ToString()}");
                return $"在接收數據時發生錯誤:{ex.ToString()}";//把服務端錯誤信息直接返回可能會導致信息不安全，此處僅供參考
            }
            response.StatusDescription = "200";//獲取或設置返回給客戶端的 HTTP 狀態代碼的文本說明。
            response.StatusCode = 200;// 獲取或設置返回給客戶端的 HTTP 狀態代碼。
            Console.ForegroundColor = ConsoleColor.Green;
            Console.WriteLine($"接收數據完成:{data.Trim()},時間：{DateTime.Now.ToString()}");
            return $"接收數據完成";
        }
    }
}