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这篇文章主要介绍用JavaScript和jQuery、HTML、CSS以及用第三方聊天JavaScript(jsjac)框架构建一个BS Web的聊天应用程序。此程序可以和所有连接到Openfire服务器的应用进行通信、发送消息。如果要运行本程序还需要一个聊天服务器Openfire,

以及需要用到Http方式和Openfire通信的第三方库(JabberHTTPBind)。

JabberHTTPBind是jabber提供的XMPP协议通信的Http bind发送的形式,它可以完成WebBrowser和Openfire建立长连接通信。

主要通信流程如下图所示:

image

用户A通过JavaScript jsjac.js库发送一条消息到JabberHTTPBind这个Servlet容器,然后JabberHTTPBind的Servlet容器会向Openfire发送XMPP协议的XML报文。Openfire Server接收到报文后解析,然后发送给指定的用户B。JabberHTTPBind获取到Openfire Server发送的数据后,解析报文向当前Servlet容器中的链接的Session中找到指定的用户再发送数据给用户B。

WebBrowser端用的是jsjac和JabberHTTPBind建立的连接,所有数据都要经过JabberHTTPBind解析/转换发送给Openfire。

 

先上张图看看效果,呵呵~这里是用户hoojo和girl的聊天画面,双方在进行互聊……

image

可以发送表情、改变字体样式(对方界面也可以看到你的字体样式),同时右侧是显示/收缩详情的信息

image

收缩详情

image

聊天界面部分截图

用户登录、注册,sendTo表示你登录后向谁发送聊天消息、并且建立一个聊天窗口

image

image

登录成功后,你可以在日志控制台看到你的登陆状态、或是在firebug控制台中看到你的连接请求状态

image

image

登陆失败

image

只有connecting,就没有下文了

image

登陆成功后,你就可以给指定用户发送消息,且设置你想发送消息的新用户点击new Chat按钮创建新会话

image

如果你来了新消息,在浏览器的标题栏会有新消息提示

image

如果你当前聊天界面的窗口都是关闭状态,那么在右下角会有消息提示的闪动图标

 

这里已经贴出了所有的源代码了,如果你非常的需要源代码(但我希望你能自己创建一个工程去复制源代码,这是我希望看到的),那么你可以通过以下方式联系我

Email:hoojo_@126.com

Blog:http://blog.csdn.net/IBM_hoojo

http://hoojo.cnblogs.com/

http://hoojo.blogjava.net

注:我不会保证在第一时间给你代码,但我会在空闲的时间给你发送源码

 

导读

如果你对openfire还不是很了解或是不知道安装,建议你看看这2篇文章

http://www.cnblogs.com/hoojo/archive/2012/05/17/2506769.html

http://www.cnblogs.com/hoojo/archive/2012/05/13/2498151.html

因为这里还用到了JabberHTTPBind 以及在使用它或是运行示例的时候会遇到些问题,那么你可以看看这篇文章

http://www.cnblogs.com/hoojo/archive/2012/05/17/2506845.html

 

开发环境

System:Windows

JavaEE Server:Tomcat 5.0.28+/Tomcat 6

WebBrowser:IE6+、Firefox3.5+、Chrome 已经兼容浏览器

JavaSDK:JDK 1.6+

Openfire 3.7.1

IDE:eclipse 3.2、MyEclipse 6.5

 

开发依赖库

image

jdk1.4+

serializer.jar
xalan.jar
jhb-1.0.jar

log4j-1.2.16.jar

jhb-1.0.jar 这个就是JabberHTTPBind,我把编译的class打成jar包了

 

JavaScript lib

image

jquery.easydrag.js 窗口拖拽JavaScript lib
jquery-1.7.1.min.js jquery lib
jsjac.js 通信核心库
local.chat-2.0.js 本地会话窗口发送消息JavaScript库
remote.jsjac.chat-2.0.js 远程会话消息JavaScript库
send.message.editor-1.0.js 窗口编辑器JavaScript库

 

一、准备工作

jsjac JavaScript lib下载:https://github.com/sstrigler/JSJaC/

如果你不喜欢用jsjac JavaScript lib和Openfire通信,那么有一款jQuery的plugin可以供你使用,下载地址

jQuery-XMPP-plugin https://github.com/maxpowel/jQuery-XMPP-plugin

这里有所以能支持Openfire通信的第三方库,有兴趣的可以研究下 http://xmpp.org/xmpp-software/libraries/

jquery.easydrag 下载:http://fromvega.com/code/easydrag/jquery.easydrag.js

jquery 下载:http://code.jquery.com/jquery-1.7.1.min.js

JabberHTTPBind jhb.jar 下载:http://download.csdn.net/detail/ibm_hoojo/4489188

images 图片素材:http://download.csdn.net/detail/ibm_hoojo/4489439

 

工程目录结构

image

 

二、核心代码演示

1、主界面(登陆、消息提示、日志、建立新聊天窗口)代码 index.jsp

<%@ page language="java" pageEncoding="UTF-8" %>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>
 
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
  <head>
    <base href="<%=basePath%>">
    
    <title>WebIM Chat</title>
    <meta http-equiv="pragma" content="no-cache">
    <meta http-equiv="cache-control" content="no-cache">
    <meta http-equiv="expires" content="0">    
    <meta http-equiv="author" content="hoojo">
    <meta http-equiv="email" content="hoojo_@126.com">
    <meta http-equiv="blog" content="http://blog.csdn.net/IBM_hoojo">
    <meta http-equiv="blog" content="http://hoojo.cnblogs.com">
    <link rel="stylesheet" type="text/css" href="css/chat-2.0.css" />
    <script type="text/javascript">
        window.contextPath = "<%=path%>";
        window["serverDomin"] = "192.168.8.22";
    </script>
    <script type="text/javascript" src="jslib/jquery-1.7.1.min.js"></script>
    <script type="text/javascript" src="jslib/jsjac.js"></script>
    <!-- script type="text/javascript" src="debugger/Debugger.js"></script-->
    <script type="text/javascript" src="jslib/send.message.editor-1.0.js"></script>
    <script type="text/javascript" src="jslib/jquery.easydrag.js"></script>
    <script type="text/javascript" src="jslib/remote.jsjac.chat-2.0.js"></script>
    <script type="text/javascript" src="jslib/local.chat-2.0.js"></script>
    <script type="text/javascript">
        $(function () {
            
            $("#login").click(function () {
                var userName = $(":text[name='userName']").val();
                var receiver = $("*[name='to']").val();
                // 建立一个聊天窗口应用,并设置发送者和消息接收者
                $.WebIM({
                    sender: userName,
                    receiver: receiver
                });
                // 登陆到openfire服务器
                 remote.jsjac.chat.login(document.userForm);
                 $("label").text(userName);
                 $("form").hide();
                 $("#newConn").show();
            });
            
            $("#logout").click(function () {
                 // 退出openfire登陆,断开链接
                 remote.jsjac.chat.logout();
                 $("form").show();
                 $("#newConn").hide();
                 $("#chat").hide(800);
            });
            
            $("#newSession").click(function () {
                var receiver = $("#sendTo").val();
                // 建立一个新聊天窗口,并设置消息接收者(发送给谁?)
                $.WebIM.newWebIM({
                    receiver: receiver
                });
            });
        });
    </script>
  </head>
  
  <body>
    <!-- 登陆表单 -->
    <form name="userForm" style="background-color: #fcfcfc; width: 100%;">
        userName:<input type="text" name="userName" value="boy"/>
        password:<input type="password" name="password" value="boy"/>
        
        register: <input type="checkbox" name="register"/>
        sendTo: <input type="text" id="to" name="to" value="hoojo" width="10"/>
        <input type="button" value="Login" id="login"/> 
    </form>
    <!-- 新窗口聊天 -->
    <div id="newConn" style="display: none; background-color: #fcfcfc; width: 100%;">
           User:<label></label>
           sendTo: <input type="text" id="sendTo" value="hoojo" width="10"/>
           <input type="button" value="new Chat" id="newSession"/> 
           <input type="button" value="Logout" id="logout"/>
    </div>
    <!-- 日志信息 -->
    <div id="error" style="display: ; background-color: red;"></div>
    <div id="info" style="display: ; background-color: #999999;"></div>
    <!-- 聊天来消息提示 -->
    <div class="chat-message">
        <img src="images/write_icon.png" class="no-msg"/>
        <img src="images/write_icon.gif" class="have-msg" style="display: none;"/>
    </div>
  </body>
</html>

 

下面这段代码尤为重要,它是设置你链接openfire的地址。这个地址一段错误你将无法进行通信!

<script type="text/javascript">
    window.contextPath = "<%=path%>";
    window["serverDomin"] = "192.168.8.22";
</script>

$.WebIM方法是主函数,用它可以覆盖local.chat中的基本配置,它可以完成聊天窗口的创建。$.WebIM.newWebIM方法是新创建一个窗口,只是消息的接收者是一个新用户。

$.WebIM({
    sender: userName,
    receiver: receiver
});
 
$.WebIM.newWebIM({
    receiver: receiver
});

 

remote.jsjac.chat.login(document.userForm);方法是用户登录到Openfire服务器

参数如下:

httpbase: window.contextPath + "/JHB/", //请求后台http-bind服务器url
domain: window["serverDomin"], //"192.168.5.231", // 192.168.5.231 当前有效域名
username: "", // 登录用户名
pass: "", // 密码
timerval: 2000, // 设置请求超时
resource: "WebIM", // 链接资源标识
register: true // 是否注册

 

remote.jsjac.chat.logout();是退出、断开openfire的链接

 

2、本地聊天应用核心代码 local.chat-2.0.js

/***
 * jquery local chat
 * @version v2.0 
 * @createDate -- 2012-5-28
 * @author hoojo
 * @email hoojo_@126.com
 * @blog http://hoojo.cnblogs.com & http://blog.csdn.net/IBM_hoojo
 * @requires jQuery v1.2.3 or later, send.message.editor-1.0.js
 * Copyright (c) 2012 M. hoo
 **/
 
;(function ($) {
 
    if (/1\.(0|1|2)\.(0|1|2)/.test($.fn.jquery) || /^1.1/.test($.fn.jquery)) {
        alert('WebIM requires jQuery v1.2.3 or later!  You are using v' + $.fn.jquery);
        return;
    }
    
    var faceTimed, count = 0;
    
    var _opts = defaultOptions = {
        version: 2.0,
        chat: "#chat",
        chatEl: function () {
            var $chat = _opts.chat;
            if ((typeof _opts.chat) == "string") {
                $chat = $(_opts.chat);
            } else if ((typeof _opts.chat) == "object") {
                if (!$chat.get(0)) {
                    $chat = $($chat);
                }
            } 
            return $chat;
        },
        sendMessageIFrame: function (receiverId) {
            return $("iframe[name='sendMessage" + receiverId + "']").get(0).contentWindow;
        },
        receiveMessageDoc: function (receiverId) {
            receiverId = receiverId || "";
            var docs = [];
            $.each($("iframe[name^='receiveMessage" + receiverId + "']"), function () {
                docs.push($(this.contentWindow.document));
            });
            return docs;
            //return $($("iframe[name^='receiveMessage" + receiverId + "']").get(0).contentWindow.document);
        },
        sender: "", // 发送者
        receiver: "", // 接收者
        setTitle: function (chatEl) {
            var receiver = this.getReceiver(chatEl);
            chatEl.find(".title").html("和" + receiver + "聊天对话中");
        },
        getReceiver: function (chatEl) {
            var receiver = chatEl.attr("receiver");
            if (~receiver.indexOf("@")) {
                receiver = receiver.split("@")[0];
            }
            return receiver;
        },
        
        // 接收消息iframe样式
        receiveStyle: [
            '<html>',
                '<head><style type="text/css">',
                'body{border:0;margin:0;padding:3px;height:98%;cursor:text;background-color:white;font-size:12px;font-family:Courier,serif,monospace;}',
                '.msg{margin-left: 1em;}p{margin:0;padding:0;}.me{color: blue;}.you{color:green;}',
                '</style></head>',
                '<body></body>',
            '</html>'
        ].join(""),
        writeReceiveStyle: function (receiverId) {
            this.receiveMessageDoc(receiverId)[0].get(0).write(this.receiveStyle);
        },
        
        datetimeFormat: function (v) {
            if (~~v < 10) {
                return "0" + v;
            }
            return v;
        },
        getDatetime: function () {
            // 设置当前发送日前
            var date = new Date();
            var datetime = date.getFullYear() + "-" + date.getMonth() + "-" + date.getDate();
            datetime = " " + _opts.datetimeFormat(date.getHours()) 
                        + ":" + _opts.datetimeFormat(date.getMinutes()) 
                        + ":" + _opts.datetimeFormat(date.getSeconds());
            return datetime;
        },
        
        /***
         * 发送消息的格式模板                    
         * flag = true 表示当前user是自己,否则就是对方
         **/ 
        receiveMessageTpl: function (userName, styleTpl, content, flag) {
            var userCls = flag ? "me" : "you";
            if (styleTpl && flag) {
                content = [ "<span style='", styleTpl, "'>", content, "</span>" ].join("");
            }
            return [
                '<p class="', userCls, '">', _opts.getDatetime(), '  ', userName, ':</p>',
                '<p class="msg">', content, '</p>'
            ].join("");
        },
        
        // 工具类按钮触发事件返回html模板
        sendMessageStyle: {
             cssStyle: {
                 bold: "font-weight: bold;",
                 underline: "text-decoration: underline;",
                 italic: "font-style: oblique;"
             },
             setStyle: function (style, val) {
                 if (val) {
                     _opts.sendMessageStyle[style] = val;
                 } else {
                     var styleVal = _opts.sendMessageStyle[style];
                     if (styleVal === undefined || !styleVal) {
                         _opts.sendMessageStyle[style] = true;
                     } else {
                         _opts.sendMessageStyle[style] = false;
                     }
                 }
             },
             getStyleTpl: function () {
                 var tpl = "";
                 $.each(_opts.sendMessageStyle, function (style, item) {
                     //alert(style + "#" + item + "#" + (typeof item));
                     if (item === true) {
                         tpl += _opts.sendMessageStyle.cssStyle[style];
                     } else if ((typeof item) === "string") {
                         //alert(style + "-------------" + sendMessageStyle[style]);
                         tpl += style + ":" + item + ";";
                     }
                 });
                 return tpl;
             }
        },
        // 向接收消息iframe区域写消息
        writeReceiveMessage: function (receiverId, userName, content, flag) {
            if (content) {
                // 发送消息的样式
                var styleTpl = _opts.sendMessageStyle.getStyleTpl();
                var receiveMessageDoc = _opts.receiveMessageDoc(receiverId);
                $.each(receiveMessageDoc, function () {
                    var $body = this.find("body");
                    // 向接收信息区域写入发送的数据
                    $body.append(_opts.receiveMessageTpl(userName, styleTpl, content, flag));
                    // 滚动条滚到底部
                    this.scrollTop(this.height());
                });
            }
        },
        // 发送消息
        sendHandler: function ($chatMain) {
            var doc = $chatMain.find("iframe[name^='sendMessage']").get(0).contentWindow.document;
            
            var content = doc.body.innerHTML;
            content = $.trim(content);
            content = content.replace(new RegExp("<br>", "gm"), "");
            // 获取即将发送的内容
            if (content) {
                var sender = $chatMain.attr("sender");
                var receiverId = $chatMain.attr("id");
                // 接收区域写消息
                _opts.writeReceiveMessage(receiverId, sender, content, true);
                
                //############# XXX
                var receiver = $chatMain.find("#to").val();
                //var receiver = $chatMain.attr("receiver");
                // 判断是否是手机端会话,如果是就发送纯text,否则就发送html代码
                var flag = _opts.isMobileClient(receiver);
                if (flag) {
                    var text = $(doc.body).text();
                    text = $.trim(text);
                    if (text) {
                        // 远程发送消息
                        remote.jsjac.chat.sendMessage(text, receiver);
                    }
                } else { // 非手机端通信 可以发送html代码
                    var styleTpl = _opts.sendMessageStyle.getStyleTpl();
                    content = [ "<span style='", styleTpl, "'>", content, "</span>" ].join("");
                    remote.jsjac.chat.sendMessage(content, receiver);
                }
                
                // 清空发送区域
                $(doc).find("body").html("");
            }
        }, 
        
        faceImagePath: "images/emotions/",
        faceElTpl: function (i) {
            return [
                "<img src='",
                this.faceImagePath,
                (i - 1),
                "fixed.bmp' gif='",
                this.faceImagePath,
                (i - 1),
                ".gif'/>"
            ].join("");
        },
        // 创建表情html elements
        createFaceElement: function ($chat) {
            var faces = [];
            for (var i = 1; i < 100; i++) {
                 faces.push(this.faceElTpl(i));
                 if (i % 11 == 0) {
                     faces.push("<br/>");
                 } 
            }
            $chat.find("#face").html(faces.join(""));
            this.faceHandler($chat);
        },
        // 插入表情
        faceHandler: function ($chat) {
            $chat.find("#face img").click(function () {
                 $chat.find("#face").hide(150);
                 var imgEL = "<img src='" + $(this).attr("gif") + "'/>";
                 var $chatMain = $(this).parents(".chat-main");
                 var win = $chatMain.find("iframe[name^='sendMessage']").get(0).contentWindow;
                 var doc = win.document;
                 sendMessageEditor.insertAtCursor(imgEL, doc, win);
            });
            // 表情隐藏
            $chat.find("#face, #face img").mouseover(function () {
                window.clearTimeout(faceTimed);
            }).mouseout(function () {
                window.clearTimeout(faceTimed);
                faceTimed = window.setTimeout(function () {
                    $chat.find("#face").hide(150);
                }, 700);
            });
        },
        /***
         * 发送消息工具栏按钮事件方法
         **/
        toolBarHandler: function () {
            var $chat = $(this).parents(".chat-main");
            var targetCls = $(this).attr("class");
            if (targetCls == "face") {
                $chat.find("#face").show(150);
                window.clearTimeout(faceTimed);
                faceTimed = window.setTimeout(function () {
                    $chat.find("#face").hide(150);
                }, 1000);
            } else if (this.tagName == "DIV") {
                _opts.sendMessageStyle.setStyle(targetCls);
            } else if (this.tagName == "SELECT") {
                _opts.sendMessageStyle.setStyle($(this).attr("name"), $(this).val());
                if ($(this).attr("name") == "color") {
                    $(this).css("background-color", $(this).val());
                }
            }
            
            // 设置sendMessage iframe的style css
            _opts.writeSendStyle();
        },
        // 设置sendMessage iframe的style css
        writeSendStyle: function () {
            var styleTpl = _opts.sendMessageStyle.getStyleTpl();
            var styleEL = ['<style type="text/css">body{', styleTpl,'}</style>'].join("");
            
            $("body").find("iframe[name^='sendMessage']").each(function () {
                var $head = $(this.contentWindow.document).find("head");
                if ($head.find("style").size() > 1) {
                    $head.find("style:gt(0)").remove();
                }
                if (styleTpl) {
                    $head.append(styleEL);
                }
            });
        },                
        
        isMobileClient: function (receiver) {
            var moblieClients = ["iphone", "ipad", "ipod", "wp7", "android", "blackberry", "Spark", "warning", "symbian"];
            var flag = false;
            for (var i in moblieClients) {
                if (~receiver.indexOf(moblieClients[i])) {
                    return true;
                }
            }
            return false;
        },
 
        // 聊天界面html元素
        chatLayoutTemplate: function (userJID, sender, receiver, product, flag) {
            var display = "";
            if (flag) {
                display = "style='display: none;'";
            }
            return [
            '<div class="chat-main" id="', userJID,
                '" sender="', sender, '" receiver="', receiver, '">',
                    
                '<div id="chat"><div class="radius">',
                    '<table>',
                        '<tr>',
                            '<td colspan="3" class="title"></td>',
                        '</tr>',
                        '<tr>',
                            '<td class="receive-message">',
                                '<iframe name="receiveMessage', userJID,'" frameborder="0" width="100%" height="100%"></iframe>',
                            '</td>',
                            '<td rowspan="4" class="split" ', display, '></td>',
                            '<td rowspan="4" class="product-info" ', display, '>',
                                '<ul>',
                                    '<div class="header">商品详情</div>',
                                    '<li class="pic">',
                                    '<img src="', product.pic, '"/></li>',
                                    '<li class="product-name">', product.name, '</li>',
                                    '<li class="price">团购价:<span>', product.price, '</span>元</li>',
                                    '<li class="market-price">市场价:<s><i>', product.marketPrice, '</i></s>元</li>',
                                    '<li>快递公司:', product.deliverOrgs, '</li>',
                                    '<li>仓库:', product.wareHouses, '</li>',
                                    product.skuAttrs,
                                '</ul>',
                            '</td>',
                        '</tr>',
                        '<tr class="tool-bar">',
                            '<td>',
                                '<select name="font-family" class="family">',
                                    '<option>宋体</option>',
                                    '<option>黑体</option>',
                                    '<option>幼圆</option>',
                                    '<option>华文行楷</option>',
                                    '<option>华文楷体</option>',
                                    '<option>华文楷体</option>',
                                    '<option>华文彩云</option>',
                                    '<option>华文隶书</option>',
                                    '<option>微软雅黑</option>',
                                    '<option>Fixedsys</option>',
                                '</select>',
                                
                                '<select name="font-size">',
                                    '<option value="12px">大小</option>',
                                    '<option value="10px">10</option>',
                                    '<option value="12px">12</option>',
                                    '<option value="14px">14</option>',
                                    '<option value="16px">16</option>',
                                    '<option value="18px">18</option>',
                                    '<option value="20px">20</option>',
                                    '<option value="24px">24</option>',
                                    '<option value="28px">28</option>',
                                    '<option value="36px">36</option>',
                                    '<option value="42px">42</option>',
                                    '<option value="52px">52</option>',
                                '</select>',
                                '<select name="color">',
                                    '<option value="" selected="selected">颜色</option>',
                                    '<option value="#000000" style="background-color:#000000"></option>',
                                    '<option value="#FFFFFF" style="background-color:#FFFFFF"></option>',
                                    '<option value="#008000" style="background-color:#008000"></option>',
                                    '<option value="#800000" style="background-color:#800000"></option>',
                                    '<option value="#808000" style="background-color:#808000"></option>',
                                    '<option value="#000080" style="background-color:#000080"></option>',
                                    '<option value="#800080" style="background-color:#800080"></option>',
                                    '<option value="#808080" style="background-color:#808080"></option>',
                                    '<option value="#FFFF00" style="background-color:#FFFF00"></option>',
                                    '<option value="#00FF00" style="background-color:#00FF00"></option>',
                                    '<option value="#00FFFF" style="background-color:#00FFFF"></option>',
                                    '<option value="#FF00FF" style="background-color:#FF00FF"></option>',
                                    '<option value="#FF0000" style="background-color:#FF0000"></option>',
                                    '<option value="#0000FF" style="background-color:#0000FF"></option>',
                                    '<option value="#008080" style="background-color:#008080"></option>',
                                '</select>',
                                '<div class="bold"></div>',
                                '<div class="underline"></div>',
                                '<div class="italic"></div>',
                                '<div class="face"></div>',
                                '<div class="history">消息记录</div>',
                            '</td>',
                        '</tr>',
                        '<tr class="send-message">',
                            '<td>',
                                '<iframe name="sendMessage', userJID,'" width="100%" height="80px" frameborder="0"></iframe>',
                            '</td>',
                        '</tr>',
                        '<tr class="bottom-bar">',
                            '<td><input type="text" id="to" name="to" value="hoojo" style="width: 100px; display: none;"/><input type="button" value="关闭" id="close"/>',
                            '<input type="button" value="发送(Enter)" id="send"/> </td>',
                        '</tr>',
                    '</table></div>',
                    '<div id="face"></div>',
                '</div>',
            '</div>'
            ].join("");
        },
        
        initWebIM: function (userJID, receiver) {
            var product = {
                name: "小玩熊",
                pic: "http://avatar.csdn.net/9/7/A/2_ibm_hoojo.jpg",
                price: "198.00",
                marketPrice: "899.90",
                deliverOrgs: "EMS",
                wareHouses: "A库",
                skuAttrs: ""
            };
            var chatEl = $(_opts.chatLayoutTemplate(userJID, _opts.sender, receiver, product));
            $("body").append(chatEl);                        
            
            // 拖拽
            $("#" + userJID).easydrag();
            // 初始化sendMessageEditor相关信息
            sendMessageEditor.iframe = this.sendMessageIFrame(userJID);
            sendMessageEditor.init(userJID);    
            
            _opts.setTitle(chatEl);
            _opts.writeReceiveStyle(userJID);
            _opts.writeSendStyle();
            _opts.createFaceElement(chatEl);
            
            // 查看更多详情
            chatEl.find(".more").click(function () {
                var $ul = $(this).parents("ul");
                $ul.find(".more").toggle();
                $ul.find(".info").toggle();
                $ul.find(".pic").toggle();
            });
            
            // 收缩详情
            chatEl.find(".split").toggle(function () {
                $(".product-info").hide();
                $(this).parents(".radius").css("border-right-width", "0");
            }, function () {
                $(".product-info").show();
                $(this).parents(".radius").css("border-right-width", "8px");
            });
            
            // 工具类绑定事件 settings.toolBarHandler
            chatEl.find(".tool-bar td").children().click(this.toolBarHandler);
             chatEl.find("#send").click(function () {
                 var $chatMain = $(this).parents(".chat-main");
                _opts.sendHandler($chatMain);
             });
             chatEl.find("#close").click(function () {
                 var $chatMain = $(this).parents(".chat-main");
                $chatMain.hide(500);
             });
             
             // 首先取消事件绑定,当一次性发多条消息的情况下会同时绑定多个相同事件
            $(".have-msg, .no-msg, .chat-main").unbind("click");
             $(".have-msg").bind("click", function () {
                $(this).hide();
                $(".no-msg").show();
                $(".chat-main:hidden").show(150);
            });
            
            $(".no-msg").click(function () {
                $(".chat-main:hidden").each(function (i, item) {
                    var top = i * 10 + 50;
                    var left = i * 20 + 50;
                    $(this).show(500).css({top: top, left: left});
                });
            });
            
            $(".chat-main").click(function () {
                $(".chat-main").css("z-index", 9999);
                $(this).css({"z-index": 10000});
            });
             
             $(this.sendMessageIFrame(userJID).document).keyup(function (event) {
                 var e = event || window.event;
                 var keyCode = e.which || e.keyCode;
                 if (keyCode == 13) {
                     var $chatMain = $("#" + $(this).find("body").attr("jid"));
                     _opts.sendHandler($chatMain);
                 }
             });
        },
        
        // 建立新聊天窗口
        newWebIM: function (settings) {
            var chatUser = remote.userAddress(settings.receiver);
            var userJID = "u" + hex_md5(chatUser);
            _opts.initWebIM(userJID, chatUser);
            
            $("#" + userJID).find(remote.receiver).val(chatUser);
            $("#" + userJID).show(220);
        },
        
        // 远程发送消息时执行函数
        messageHandler: function (user, content) {
            var userName = user.split("@")[0];
            var tempUser = user;
            if (~tempUser.indexOf("/")) {
                tempUser = tempUser.substr(0, tempUser.indexOf("/"));
            }
            var userJID = "u" + hex_md5(tempUser);
            
            // 首次初始webIM
            if (!$("#" + userJID).get(0)) {
                // 初始IM面板;
                _opts.initWebIM(userJID, user);
            } 
            // 设置消息接受者的名称
            $("#" + userJID).find(remote.receiver).val(user);
            
            if ($("#" + userJID).get(0)) {
                // 消息提示
                if ($("div[id='" + userJID + "']:hidden").get(0)) {
                    var haveMessage = $(".have-msg");
                    haveMessage.show();
                    $(".no-msg").hide();
                }
                
                _opts.messageTip("闪聊有了新消息,请查收!");
                // 向chat接收信息区域写消息
                remote.jsjac.chat.writeMessage(userJID, userName, content);
            } 
        },
        
        // 消息提示
        messageTip: function () {
            if (count % 2 == 0) {
                window.focus();
                document.title = "你来了新消息,请查收!";
            } else {
                document.title = "";                
            }
            if (count > 4) {
                document.title = "";    
                count = 0;            
            } else {
                window.setTimeout(_opts.messageTip, 1000);
                count ++;
            }
        }
    };
    
    // 初始化远程聊天程序相关方法
    var initRemoteIM = function (settings) {
        
        // 初始化远程消息
        remote.jsjac.chat.init();
        
        // 设置客户端写入信息方法
        remote.jsjac.chat.writeReceiveMessage = settings.writeReceiveMessage;
        
        // 注册事件
        $(window).bind({
             unload: remote.jsjac.chat.unloadHandler,
             error: remote.jsjac.chat.errorHandler,
             beforeunload: remote.jsjac.chat.logout
        });
    }
    
    $.extend({
        WebIM: function (opts) {
            opts = opts || {};
            // 覆盖默认配置
            defaultOptions = $.extend(defaultOptions, defaultOptions, opts);
            var settings = $.extend({}, defaultOptions, opts);    
            initRemoteIM(settings);
            
            settings.newWebIM(settings);
            
            $.WebIM.settings = settings;
        }
    });
    
    $.WebIM.settings = $.WebIM.settings || _opts;
    $.WebIM.initWebIM = _opts.initWebIM;
    $.WebIM.newWebIM = _opts.newWebIM;
    $.WebIM.messageHandler = _opts.messageHandler;
    
})(jQuery);

这里的方法基本上是聊天窗口上的应用,主要是本地聊天程序的js、HTML元素的操作。如字体、字体大小、颜色、表情、消息的发送等,不涉及到聊天消息发送的核心代码,其中有用到发送远程消息的方法。

remote.jsjac.chat.sendMessage(text, receiver); 这个是发送远程消息的方法,参数1是消息内容、参数2是消息的接收者

如果你有看到这篇文章http://www.cnblogs.com/hoojo/archive/2012/06/18/2553886.html 它是一个单纯的WebIM本地的聊天界面。

 

3、远程聊天JavaScript核心代码,它是和jsjac库关联的。

remote.jsjac.chat-2.0.js

/**
 * IM chat jsjac remote message
 * @author: hoojo
 * @email: hoojo_@126.com
 * @blog http://hoojo.cnblogs.com & http://blog.csdn.net/IBM_hoojo
 * @createDate: 2012-5-24
 * @version 2.0
 * @requires jQuery v1.2.3 or later
 * Copyright (c) 2012 M. hoo
 **/
 
var remote = {
    debug: "info, error",
    chat: "body",
    receiver: "#to", // 接受者jquery expression
    console: {
        errorEL: function () {
            if ($(remote.chat).get(0)) {
                return $(remote.chat).find("#error");
            } else {
                return $("body").find("#error");
            }
        },
        infoEL: function () {
            if ($(remote.chat).get(0)) {
                return $(remote.chat).find("#info");
            } else {
                return $("body").find("#info");
            }
        },
        // debug info
        info: function (html) {
            if (~remote.debug.indexOf("info")) {
                remote.console.infoEL().append(html);
                remote.console.infoEL().get(0).lastChild.scrollIntoView();
            }
        },
        // debug error
        error: function (html) {
            if (~remote.debug.indexOf("error")) {
                remote.console.errorEL().append(html); 
            }
        },
        // clear info/debug console
        clear: function (s) {
            if ("debug" == s) {
                remote.console.errorEL().html("");
            } else {
                remote.console.infoEL().html("");
            }
        }
    },
    
    userAddress: function (user) {
        if (user) {
            if (!~user.indexOf("@")) {
                user += "@" + remote.jsjac.domain;// + "/" + remote.jsjac.resource;
            } else if (~user.indexOf("/")) {
                user = user.substr(0, user.indexOf("/"));
            }
        }
        return user;
    },
    jsjac: {
        httpbase: window.contextPath + "/JHB/", //请求后台http-bind服务器url
        domain: window["serverDomin"], //"192.168.5.231", // 192.168.5.231 当前有效域名
        username: "",
        pass: "",
        timerval: 2000, // 设置请求超时
        resource: "WebIM", // 链接资源标识
        register: true // 是否注册
    }
};
remote.jsjac.chat = {
    writeReceiveMessage: function () {
    },
    setState: function () {
        var onlineStatus = new Object();
        onlineStatus["available"] = "在线";
        onlineStatus["chat"] = "欢迎聊天";
        onlineStatus["away"] = "离开";
        onlineStatus["xa"] = "不可用";
        onlineStatus["dnd"] = "请勿打扰";
        onlineStatus["invisible"] = "隐身";
        onlineStatus["unavailable"] = "离线";
        remote.jsjac.chat.state = onlineStatus;
        return onlineStatus;
    },
    state: null,
    init: function () {
        // Debugger plugin
        if (typeof (Debugger) == "function") {
            remote.dbger = new Debugger(2, remote.jsjac.resource);
            remote.dbger.start();
        } else {
            // if you're using firebug or safari, use this for debugging
            // oDbg = new JSJaCConsoleLogger(2);
            // comment in above and remove comments below if you don't need debugging
            remote.dbger = function () {
            };
            remote.dbger.log = function () {
            };
        }
        
        try { 
            // try to resume a session
            if (JSJaCCookie.read("btype").getValue() == "binding") {
                remote.connection = new JSJaCHttpBindingConnection({ "oDbg": remote.dbger});
                rdbgerjac.chat.setupEvent(remote.connection);
                if (remote.connection.resume()) {
                    remote.console.clear("debug");
                }
            } 
        } catch (e) {
            remote.console.errorEL().html(e.name + ":" + e.message);
        } // reading cookie failed - never mind
        
        remote.jsjac.chat.setState();
    },
    login: function (loginForm) {
        remote.console.clear("debug"); // reset
        try {
            // 链接参数
            var connectionConfig = remote.jsjac;
            
            // Debugger console
            if (typeof (oDbg) != "undefined") {
                connectionConfig.oDbg = oDbg;
            }
            var connection = new JSJaCHttpBindingConnection(connectionConfig);
            remote.connection = connection;
            // 安装(注册)Connection事件模型
            remote.jsjac.chat.setupEvent(connection);
    
            // setup args for connect method
            if (loginForm) {
                //connectionConfig = new Object();
                //connectionConfig.domain = loginForm.domain.value;
                connectionConfig.username = loginForm.userName.value;
                connectionConfig.pass = loginForm.password.value;
                connectionConfig.register = loginForm.register.checked;
            }
            // 连接服务器
            connection.connect(connectionConfig);
            
            //remote.jsjac.chat.changeStatus("available", "online", 1, "chat");
        } catch (e) {
            remote.console.errorEL().html(e.toString());
        } finally {
            return false;
        }
    },
    // 改变用户状态
    changeStatus: function (type, status, priority, show) {
        type = type || "unavailable";
        status = status || "online";
        priority = priority || "1";
        show = show || "chat";
        var presence = new JSJaCPresence();
        presence.setType(type); // unavailable invisible
        if (remote.connection) {
            //remote.connection.send(presence);
        }
        
        //presence = new JSJaCPresence();
        presence.setStatus(status); // online
        presence.setPriority(priority); // 1
        presence.setShow(show); // chat
        if (remote.connection) {
            remote.connection.send(presence);
        }
    },
    
    // 为Connection注册事件
    setupEvent: function (con) {
        var remoteChat = remote.jsjac.chat;
        con.registerHandler('message', remoteChat.handleMessage);
        con.registerHandler('presence', remoteChat.handlePresence);
        con.registerHandler('iq', remoteChat.handleIQ);
        con.registerHandler('onconnect', remoteChat.handleConnected);
        con.registerHandler('onerror', remoteChat.handleError);
        con.registerHandler('status_changed', remoteChat.handleStatusChanged);
        con.registerHandler('ondisconnect', remoteChat.handleDisconnected);
    
        con.registerIQGet('query', NS_VERSION, remoteChat.handleIqVersion);
        con.registerIQGet('query', NS_TIME, remoteChat.handleIqTime);
    },
    // 发送远程消息
    sendMessage: function (msg, to) {
        try {
            if (msg == "") {
                return false;
            }
            var user = "";
            if (to) {
                if (!~to.indexOf("@")) {
                    user += "@" + remote.jsjac.domain;
                    to += "/" + remote.jsjac.resource;
                } else if (~to.indexOf("/")) {
                    user = to.substr(0, to.indexOf("/"));
                }
            } else {
                // 向chat接收信息区域写消息
                if (remote.jsjac.chat.writeReceiveMessage) {
                    var html = "你没有指定发送者的名称";
                    alert(html);
                    //remote.jsjac.chat.writeReceiveMessage(receiverId, "server", html, false);
                }
                return false;
            }
            var userJID = "u" + hex_md5(user);
            $("#" + userJID).find(remote.receiver).val(to);
            // 构建jsjac的message对象
            var message = new JSJaCMessage();
            message.setTo(new JSJaCJID(to));
            message.setType("chat"); // 单独聊天,默认为广播模式
            message.setBody(msg);
            // 发送消息
            remote.connection.send(message);
            return false;
        } catch (e) {
            var html = "<div class='msg error''>Error: " + e.message + "</div>";
            remote.console.info(html);
            return false;
        }
    },
    // 退出、断开链接
    logout: function () {
        var presence = new JSJaCPresence();
        presence.setType("unavailable");
        if (remote.connection) {
            remote.connection.send(presence);
            remote.connection.disconnect();
        }
    },
    errorHandler: function (event) {
        var e = event || window.event;
        remote.console.errorEL().html(e);
        if (remote.connection && remote.connection.connected()) {
            remote.connection.disconnect();
        }
        return false;
    },
    unloadHandler: function () {
        var con = remote.connection;
        if (typeof con != "undefined" && con && con.connected()) {
              // save backend type
            if (con._hold) { // must be binding
                (new JSJaCCookie("btype", "binding")).write();
            } 
            if (con.suspend) {
                con.suspend();
            }
        }
    },
    writeMessage: function (userJID, userName, content) {
        // 向chat接收信息区域写消息
        if (remote.jsjac.chat.writeReceiveMessage && !!content) {
            remote.jsjac.chat.writeReceiveMessage(userJID, userName, content, false);
        }
    },
    // 重新连接服务器
    reconnection: function () {
        remote.jsjac.register = false;
        if (remote.connection.connected()) {
            remote.connection.disconnect();
        }
        remote.jsjac.chat.login();
    },
    /* ########################### Handler Event ############################# */
    
    handleIQ: function (aIQ) {
        var html = "<div class='msg'>IN (raw): " + aIQ.xml().htmlEnc() + "</div>";
        remote.console.info(html);
        remote.connection.send(aIQ.errorReply(ERR_FEATURE_NOT_IMPLEMENTED));
    },
    handleMessage: function (aJSJaCPacket) {
        var user = aJSJaCPacket.getFromJID().toString();
        //var userName = user.split("@")[0];
        //var userJID = "u" + hex_md5(user);
        var content = aJSJaCPacket.getBody();
        var html = "";
        html += "<div class=\"msg\"><b>消息来自 " + user + ":</b><br/>";
        html += content.htmlEnc() + "</div>";
        remote.console.info(html);
        
        $.WebIM.messageHandler(user, content);
    },
    handlePresence: function (aJSJaCPacket) {
        var user = aJSJaCPacket.getFromJID();
        var userName = user.toString().split("@")[0];
        var html