這篇文章主要介紹html5怎么使用go+websocket搭建websocket服務，文中介紹的非常詳細，具有一定的參考價值，感興趣的小伙伴們一定要看完！
這次的就直接發放代碼截圖吧，應該是用go語言做后臺一個簡易的聊天，這里沒用到什么特別的知識，最樸實的來實現效果，主要目的是分享下h6怎么用websocket，go搭建websocket服務的主要部分。
go代碼部分：
// WebChat project main.go
package main
import (
"fmt"
"net/http"
"time"
"encoding/json"
"strings"
"golang.org/x/net/websocket"
)
//全局信息
var datas Datas
var users map[*websocket.Conn]string
func main() {
fmt.Println("啟動時間")
fmt.Println(time.Now())
//初始化
datas = Datas{}
users = make(map[*websocket.Conn]string)
//綁定效果頁面
http.HandleFunc("/", h_index)
//綁定socket方法
http.Handle("/webSocket", websocket.Handler(h_webSocket))
//開始監聽
http.ListenAndServe(":8", nil)
}
func h_index(w http.ResponseWriter, r *http.Request) {
http.ServeFile(w, r, "index.html")
}
func h_webSocket(ws *websocket.Conn) {
var userMsg UserMsg
var data string
for {
//判斷是否重復連接
if _, ok := users[ws]; !ok {
users[ws] = "匿名"
}
userMsgsLen := len(datas.UserMsgs)
fmt.Println("UserMsgs", userMsgsLen, "users長度：", len(users))
//有消息時，全部分發送數據
if userMsgsLen > 0 {
b, errMarshl := json.Marshal(datas)
if errMarshl != nil {
fmt.Println("全局消息內容異常...")
break
}
for key, _ := range users {
errMarshl = websocket.Message.Send(key, string(b))
if errMarshl != nil {
//移除出錯的鏈接
delete(users, key)
fmt.Println("發送出錯...")
break
}
}
datas.UserMsgs = make([]UserMsg, 0)
}
fmt.Println("開始解析數據...")
err := websocket.Message.Receive(ws, &data)
fmt.Println("data：", data)
if err != nil {
//移除出錯的鏈接
delete(users, ws)
fmt.Println("接收出錯...")
break
}
data = strings.Replace(data, "\n", "", 0)
err = json.Unmarshal([]byte(data), &userMsg)
if err != nil {
fmt.Println("解析數據異常...")
break
}
fmt.Println("請求數據類型：", userMsg.DataType)
switch userMsg.DataType {
case "send":
//賦值對應的昵稱到ws
if _, ok := users[ws]; ok {
users[ws] = userMsg.UserName
//清除連接人昵稱信息
datas.UserDatas = make([]UserData, 0)
//重新加載當前在線連接人
for _, item := range users {
userData := UserData{UserName: item}
datas.UserDatas = append(datas.UserDatas, userData)
}
}
datas.UserMsgs = append(datas.UserMsgs, userMsg)
}
}
}
type UserMsg struct {
UserName string
Msg string
DataType string
}
type UserData struct {
UserName string
}
type Datas struct {
UserMsgs []UserMsg
UserDatas []UserData
}html代碼部分：
<!DOCTYPE html> <html> <head> <title></title> <meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, user-scalable=no"> <!-- 新 Bootstrap 核心 CSS 文件 --> <link rel="stylesheet" href="//cdn.bootcss.com/bootstrap/3.3.5/css/bootstrap.min.css"> <script src="//cdn.bootcss.com/jquery/1.11.3/jquery.min.js"></script> <!-- <script src="//cdn.bootcss.com/bootstrap/3.3.5/js/bootstrap.min.js"></script>--> </head> <body> <div> <div>內容：</div> <div id="divShow"> <!--<div class="list-group-item list-group-item-success">1111</div> <div class="list-group-item list-group-item-info">1111</div> <div class="list-group-item list-group-item-warning">1111</div> <div class="list-group-item list-group-item-danger">1111</div>--> </div> <div id="divUsers"> 在線：<br /> <!--<div class="btn btn-default">111</div>--> </div> <div> 昵稱：<input id="txtUserName" value="紅領巾" type="text" maxlength="20" style="width: 30%; margin-bottom: 15px" /> 聊聊：<textarea id="txtContent" autofocus rows="6" placeholder="想聊的內容" maxlength="200" required style="width: 60%; "></textarea> <button class="btn btn-default" id="btnSend" style="margin-top:15px">發 送</button> </div> </div> </body> </html> <script> var tool = function () { var paperLoopNum = 0; var paperTempleArr = [ '<div class="list-group-item list-group-item-success">{0}</div>', '<div class="list-group-item list-group-item-info">{0}</div>', '<div class="list-group-item list-group-item-warning">{0}</div>', '<div class="list-group-item list-group-item-danger">{0}</div>' ]; return { paperDiv: function (val) { var hl = paperTempleArr[paperLoopNum]; paperLoopNum++; if (paperLoopNum >= paperTempleArr.length) { paperLoopNum = 0; } return this.formart(hl, [val]) }, formart: function (str, arrVal) { for (var i = 0; i < arrVal.length; i++) { str = str.replace("{" + i + "}", arrVal[i]); } return str; } } } function showMsg(id, hl, isAppend) { if (!isAppend) { $("#" + id).html(hl); } else { $("#" + id).append(hl); } } $(function () { //初始化工具方法 var tl = new tool(); var wsUrl = "ws://172.16.9.6:8/webSocket"; ws = new WebSocket(wsUrl); try { ws.onopen = function () { //showMsg("divShow", tl.paperDiv("連接服務器-成功")); } ws.onclose = function () { if (ws) { ws.close(); ws = null; } showMsg("divShow", tl.paperDiv("連接服務器-關閉"), true); } ws.onmessage = function (result) { //console.log(result.data); var data = JSON.parse(result.data); $(data.UserMsgs).each(function (i, item) { showMsg("divShow", tl.paperDiv("【" + item.UserName + "】：" + item.Msg), true); }); var userDataShow = []; $(data.UserDatas).each(function (i, item) { userDataShow.push('<div class="btn btn-default">' + item.UserName + '</div>'); }); showMsg("divUsers", userDataShow.join(''), false); } ws.onerror = function () { if (ws) { ws.close(); ws = null; } showMsg("divShow", tl.paperDiv("連接服務器-關閉"), true); } } catch (e) { alert(e.message); } $("#btnSend").on("click", function () { var tContentObj = $("#txtContent"); var tContent = $.trim( tContentObj.val()).replace("/[\n]/g", ""); var tUserName = $.trim( $("#txtUserName").val()); tUserName = tUserName.length <= 0 ? "匿名" : tUserName; if (tContent.length <= 0 || $.trim(tContent).length <= 0) { alert("請輸入發送內容!"); return; } if (ws == null) { alert("連接失敗，請F5刷新頁面!"); return; } var request = tl.formart('{"UserName": "{0}", "DataType": "{1}", "Msg": "{2}" }', [tUserName, "send", tContent]); ws.send(request); tContentObj.val(""); tContentObj.val($.trim(tContentObj.val()).replace("/[\n]/g", "")); }); $("#txtContent").on("keydown", function (event) { if (event.keyCode == 13) { $("#btnSend").trigger("click"); } }); }) </script>
效果圖：
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