mes-client/UAS_PRINT/Form2.cs

using Newtonsoft.Json.Linq;
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Drawing.Printing;
using System.IO;
using System.Linq;
using System.Net;
using System.Text;
using System.Threading;
using System.Windows.Forms;

namespace UAS_PRINT
{
    public partial class Form2 : Form
    {
        public Form2()
        {
            InitializeComponent();
        }

        private static HttpListener httpPostRequest = new HttpListener();
        private Thread ThrednHttpPostRequest;
        private void Form2_Load(object sender, EventArgs e)
        {
            httpPostRequest.Prefixes.Add("http://localhost:9100/");
            httpPostRequest.Start();

            ThrednHttpPostRequest = new Thread(new ThreadStart(httpPostRequestHandle));
            ThrednHttpPostRequest.Start();
            MyNotifyIcon.ShowBalloonTip(30,"提示","程序启动",ToolTipIcon.Info);
        }


        private string getRequestPayload(HttpListenerContext req)
        {

            return "";
        }

        private static void httpPostRequestHandle()
        {
            while (true)
            {
                HttpListenerContext requestContext = httpPostRequest.GetContext();
                Thread threadsub = new Thread(new ParameterizedThreadStart((requestcontext) =>
                {
                    HttpListenerContext request = (HttpListenerContext)requestcontext;
                    
                    //获取Post请求中的参数和值帮助类
                    HttpListenerPostParaHelper httppost = new HttpListenerPostParaHelper(request);
                    //获取Post过来的参数和数据
                    List<HttpListenerPostValue> lst = httppost.GetHttpListenerPostValue();

                    string userName = "";
                    string password = "";
                    string suffix = "";
                    string adType = "";

                    //使用方法
                    //foreach (var key in lst)
                    //{
                    //    if (key.type == 0)
                    //    {
                    //        string value = Encoding.UTF8.GetString(key.datas).Replace("\r\n", "");
                    //        if (key.name == "username")
                    //        {
                    //            userName = value;
                    //            Console.WriteLine(value);
                    //        }
                    //        if (key.name == "password")
                    //        {
                    //            password = value;
                    //            Console.WriteLine(value);
                    //        }
                    //        if (key.name == "suffix")
                    //        {
                    //            suffix = value;
                    //            Console.WriteLine(value);
                    //        }
                    //        if (key.name == "adtype")
                    //        {
                    //            adType = value;
                    //            Console.WriteLine(value);
                    //        }
                    //    }
                    //    if (key.type == 1)
                    //    {
                    //        string fileName = request.Request.QueryString["FileName"];
                    //        if (!string.IsNullOrEmpty(fileName))
                    //        {
                    //            string filePath = AppDomain.CurrentDomain.BaseDirectory + DateTime.Now.ToString("yyMMdd_HHmmss_ffff") + Path.GetExtension(fileName).ToLower();
                    //            if (key.name == "File")
                    //            {
                    //                FileStream fs = new FileStream(filePath, FileMode.Create);
                    //                fs.Write(key.datas, 0, key.datas.Length);
                    //                fs.Close();
                    //                fs.Dispose();
                    //            }
                    //        }
                    //    }
                    //}
                   
                        //Response
                        request.Response.StatusCode = 200;
                        request.Response.Headers.Add("Access-Control-Allow-Origin", "*");
                        request.Response.ContentType = "application/json";
                        requestContext.Response.ContentEncoding = Encoding.UTF8;
                        
                    string json = "";
                    if (requestContext.Request.Url.PathAndQuery == "/write")
                    {
                        Stream stream = requestContext.Request.InputStream;
                        var memoryStream = new MemoryStream();
                        //将基础流写入内存流
                        const int bufferLength = 10 * 1024 * 1024;
                        byte[] buffera = new byte[bufferLength];
                        int actual = stream.Read(buffera, 0, bufferLength);
                        if (actual > 0)
                        {
                            memoryStream.Write(buffera, 0, actual);
                        }
                        memoryStream.Position = 0;
                        string req = System.Text.Encoding.UTF8.GetString(buffera);
                        PrintHandler.zplprint(req);
                    }
                    else if (requestContext.Request.Url.PathAndQuery == "/default?type=printer")
                    {
                        PrintDocument PrintDoc = new PrintDocument();
                        string sDefault = PrintDoc.PrinterSettings.PrinterName;//默认打印机名
                        //byte[] buffer = System.Text.Encoding.UTF8.GetBytes(Newtonsoft.Json.JsonConvert.SerializeObject(new { success = "true", msg = "提交成功" }));
                        json = new JObject(
                            new JObject(
                                new JProperty("deviceType", "printer"),
                                new JProperty("uid", sDefault),
                                new JProperty("provider", "com.zebra.ds.webdriver.desktop.provider.DefaultDeviceProvider"),
                                new JProperty("name", sDefault),
                                new JProperty("connection", "driver"),
                                new JProperty("version", 2),
                                new JProperty("manufacturer", "Zebra Technologies")
                                )
                            ).ToString();
                    }
                    else if (requestContext.Request.Url.PathAndQuery == "/available")
                    {
                        List<string> PrintC = new List<string>();

                        foreach (string sPrint in PrinterSettings.InstalledPrinters)//获取所有打印机名称
                        {
                            PrintC.Add(sPrint);
                        }
                        json = new JObject(
                            new JProperty(
                                "printer", new JArray
                                (
                                    from sPrint in PrintC
                                    select new JObject(
                                            new JObject(
                                        new JProperty("deviceType", "printer"),
                                        new JProperty("uid", sPrint),
                                        new JProperty("provider", "com.zebra.ds.webdriver.desktop.provider.DefaultDeviceProvider"),
                                        new JProperty("name", sPrint),
                                        new JProperty("connection", "driver"),
                                        new JProperty("version", 2),
                                        new JProperty("manufacturer", "Zebra Technologies")
                                                )
                                        )
                                )
                                )
                            ).ToString();
                    }
                    else
                    {
                        json = Newtonsoft.Json.JsonConvert.SerializeObject(new { success = "true", msg = "提交成功" });
                    }
                        byte[] buffer = System.Text.Encoding.UTF8.GetBytes(json);
                        //byte[] buffer = System.Text.Encoding.UTF8.GetBytes(Newtonsoft.Json.JsonConvert.SerializeObject(new { success = "true", msg = "提交成功" }));
                        request.Response.ContentLength64 = buffer.Length;
                        var output = request.Response.OutputStream;
                        output.Write(buffer, 0, buffer.Length);
                        output.Close();
                    
                }));
                threadsub.Start(requestContext);
            }
        }

        private void 退出ToolStripMenuItem_Click(object sender, EventArgs e)
        {
            ThrednHttpPostRequest.Abort();
            httpPostRequest.Close();
            this.Close();
            this.Dispose();
        }
    }
}