websocke通讯源码，项目实例，rfid ，商场无人引导系统，源码

来源：互联网发布：2016流行语言网络语言编辑：程序博客网时间：2024/04/29 16:34

前台源码

<html>
<head>
<meta charset="UTF-8">
<title>Web sockets test</title>
<script src="~/Style/Js/jquery-1.8.3.js"></script>
<script type="text/javascript">
$(function () {
(function longPolling() {
$.ajax({
url: "/WebSocket/indexstring",
data: { "timed": new Date().getTime() },
dataType: "text",
cache: false, //无缓存
timeout: 5000,
error: function (XMLHttpRequest, textStatus, errorThrown) {
$("#state").append("[state: " + textStatus + ", error: " + errorThrown + " ]<br/>");
if (textStatus == "timeout") { // 请求超时
longPolling(); // 递归调用

// 其他错误，如网络错误等
} else {
longPolling();
}
},
success: function (data, textStatus) {
$("#state").append("[state: " + textStatus + ", data: { " + data + "} ]<br/>");
if (textStatus == "success") { // 请求成功
longPolling();
}
}
});
})();

});
</script>
<script type="text/javascript">
var socket;
function connect() {
var host = "ws://" + $("serverIP").value + ":" + $("serverPort").value + "/"
socket = new WebSocket(host);
try {
socket.onopen = function (msg) {
$("btnConnect").disabled = true;
alert("连接成功！");
};
socket.onmessage = function (msg) {
if (typeof msg.data == "string") {
displayContent(msg.data);
}
else {
alert("非文本消息");
}
};
socket.onclose = function (msg) { alert("socket closed!") };
}
catch (ex) {
log(ex);
}
}
function send() {
var obj = {
name: 9000,
default_time: 1,
keep_time: 2,
Filtering_time: 3,
default_mode: 4,
default_number: 5,
slot_card_time: '',
choose_time: 6,
Expiration_time: 7,
img_upload_state: 8
};
var str = JSON.stringify(obj);

var msg = str + '\0'
//var msg = $("sendText").value + '\0'
socket.send(msg);
}
function send1() {
var objb = {
name: 9999
}
var str = JSON.stringify(objb);
var msg = str + '\0'
socket.send(msg);
}
window.onbeforeunload = function () {
try {
socket.close();
socket = null;
}
catch (ex) {
}
};
function $(id) { return document.getElementById(id); }
function displayContent(msg) {
imgpath = "default";
data = "/Style/Img/" + imgpath + ".jpg";
$("divimg1").attr("src", data);
}

function onkey(event) { if (event.keyCode == 13) { send(); } }

function SendXHR() {

imgpath = "default";
data = "/Style/Img/" + imgpath + ".jpg";
$("divimg1").attr("src", data);
}
window.onload = function () {
SendXHR();
}
</script>
</head>
<body>

<div id="login">
<div>
<input id="serverIP" type="text" placeholder="服务器IP" value="127.0.0.1" autofocus="autofocus" />
<input id="serverPort" type="text" placeholder="服务器端口" value="9000" />
<input id="btnConnect" type="button" value="连接" onclick="connect()" />
</div>
<div>
<input id="sendText" type="text" placeholder="发送文本" value="I'm WebSocket Client!" />
<input id="btnSend" type="button" value="发送" onclick="send()" />
</div>
<div>
<div>
来自服务端的消息
</div>
<textarea id="txtContent" cols="50" rows="10" readonly="readonly"></textarea>
</div>
</div>
</body>
</html>

后台源码

using MvcTest.Utilities;
using MvcTestModal;
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Net;
using System.Net.Sockets;
using System.Security.Cryptography;
using System.Text;
using System.Threading;
using System.Web;
using System.Web.Mvc;
using System.Web.Script.Serialization;

namespace MvcTest.Controllers
{
public class WebSocketController : Controller
{
//
// GET: /WebSocket/
static AutoResetEvent allDone = new AutoResetEvent(false);
public ActionResult Index()
{
return View();
}
public ActionResult Test()
{
return View();
}
public ActionResult WebSocket()
{
return View();
}
public ActionResult Testyuying()
{
return View();
}

/// <summary>
/// 发送HTTP请求
/// </summary>
/// <param name="url">请求的URL</param>
/// <param name="param">请求的参数</param>
/// <returns>请求结果</returns>
public string request(string url, string param)
{

url = "http://apis.baidu.com/apistore/baidutts/tts";
param = "text=heloyuzhilinctp=1&per=0";
string strURL = url + '?' + param;
System.Net.HttpWebRequest request;
request = (System.Net.HttpWebRequest)WebRequest.Create(strURL);
request.Method = "GET";
// 添加header
request.Headers.Add("apikey", "c5682670452c7aeee370ee1b09e24e79");
System.Net.HttpWebResponse response;
response = (System.Net.HttpWebResponse)request.GetResponse();
System.IO.Stream s;
s = response.GetResponseStream();
string StrDate = "";
string strValue = "";
StreamReader Reader = new StreamReader(s, Encoding.UTF8);
while ((StrDate = Reader.ReadLine()) != null)
{
strValue += StrDate + "\r\n";
}
return strValue;
}

public int ImgExist(string username, string content)
{
int uu = Convert.ToInt32(content);

string destDirName = System.AppDomain.CurrentDomain.BaseDirectory + "Style\\Img";
if (!Directory.Exists(destDirName))
{
return 0;
}
else
{
string[] files = Directory.GetFiles(destDirName);
DirectoryInfo di = new DirectoryInfo(destDirName);
// DirectoryInfo dir1 = new DirectoryInfo(files[2]);
FileInfo[] finfo = di.GetFiles("*.*", SearchOption.AllDirectories);
for (int i = 0; i < finfo.Length; i++)
{
string[] k = finfo[i].ToString().Split('.');
if (k[0] == Convert.ToInt32(content).ToString())
{
return 1;
}
}
return 0;
}
}
[HttpPost]
public ActionResult ImageUpLoad()
{

string kanumber = Request["kahaonumber"];
string b = Request.Form["kahaonumber"];
//定义错误消息
string msg = "";
//接受上传文件
HttpPostedFileBase hp = Request.Files["upImage"];
if (hp == null)
{
msg = "请选择文件.";
}

//string destDirName = System.AppDomain.CurrentDomain.BaseDirectory;
//获取上传目录转换为物理路径
string uploadPath = Server.MapPath("/Style/img/");
//获取文件名
string fileName = hp.FileName;
//获取文件大小
long contentLength = hp.ContentLength;
//文件不能大于1M
if (contentLength > 1024 * 1024)
{
msg = "文件大小超过限制要求.";
}
if (!checkFileExtension(fileName))
{
msg = "文件为不可上传的类型.";
}
string[] qq = fileName.Split('.');

if (qq[qq.Length - 1] == "jpg")
{
string fileNamegif = uploadPath + kanumber + ".gif";
if (qq[0].ToString() == "default")
{
string path = "/Style/img/" + fileName;
//保存文件的物理路径
string saveFile = uploadPath + fileName;
try
{
//保存文件
hp.SaveAs(fileNamegif);
hp.SaveAs(saveFile);
msg = "/Style/img/" + fileName;
}
catch
{
msg = "上传失败.";
}
return Json(msg);
}
else
{
fileName = kanumber + "." + qq[1];
string saveFile = uploadPath + fileName;
try
{
//保存文件
hp.SaveAs(fileNamegif);
hp.SaveAs(saveFile);
msg = "/Style/img/" + fileName;
}
catch
{
msg = "上传失败.";
}
return Json(msg);

}

}
else
{
string fileNamejpg = uploadPath + kanumber + ".jpg";

if (qq[0].ToString() == "default")
{
string path = "/Style/img/" + fileName;
//保存文件的物理路径
string saveFile = uploadPath + fileName;
try
{
//保存文件
hp.SaveAs(fileNamejpg);
hp.SaveAs(saveFile);
msg = "/Style/img/" + fileName;
}
catch
{
msg = "上传失败.";
}
return Json(msg);
}
else
{

fileName = kanumber + "." + qq[1];
string saveFile = uploadPath + fileName;
try
{
//保存文件
hp.SaveAs(fileNamejpg);
hp.SaveAs(saveFile);
msg = "/Style/img/" + fileName;
}
catch
{
msg = "上传失败.";
}
return Json(msg);

}

}
}

/// <summary>
/// 检查文件后缀名是否符合要求
/// </summary>
/// <param name="fileName"></param>
/// <returns></returns>
private bool checkFileExtension(string fileName)
{
//获取文件后缀
string fileExtension = System.IO.Path.GetExtension(fileName);
if (fileExtension != null)
fileExtension = fileExtension.ToLower();
else
return false;

if (fileExtension != ".jpg" && fileExtension != ".gif")
return false;

return true;
}

public JsonResult AddXml()
{
if (Request.IsAjaxRequest())
{
try
{
var signIn = new System.Web.Script.Serialization.JavaScriptSerializer().Deserialize<Save_xml_canshu>(
new System.IO.StreamReader(HttpContext.Request.InputStream).ReadToEnd());
string XmlFilePath1 = "Style\\voice\\datalist.xml";

string current_choose_time = signIn.choose_time.Trim();
int uu = XMLProcess.xml_update(XmlFilePath1, signIn.default_number.Trim(), "choose_time", current_choose_time, "id");
return new JsonResult() { Data = 0 };
}
catch (Exception)
{
return new JsonResult() { Data = null };
}
}
return new JsonResult() { Data = null };
}
}
}

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