在之前的项目基础上，加入了一个聊天室的功能，为了界面好看 引入了AmazeUI和umeditor最终效果图如下:
源码在 https://github.com/Zering/MyWeb 目前练习都在这个上面做
如果导入maven项目出现 Cannot change version of project facet Dynamic Web Module to 3.0.之类的错误时，可以参考http://www.cnblogs.com/zhanghj405/p/5579627.html
进入正题
jsp页面：
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html lang="zh">
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport"
content="width=device-width, initial-scale=1, maximum-scale=1, user-scalable=no">
<title>We Chat</title>
<!-- Set render engine for 360 browser -->
<meta name="renderer" content="webkit">
<!-- No Baidu Siteapp-->
<meta http-equiv="Cache-Control" content="no-siteapp" />
<link rel="alternate icon" href="../assets/i/favicon.ico">
<link rel="stylesheet" href="../assets/css/amazeui.min.css">
<link rel="stylesheet" href="../assets/css/app.css">
<!-- umeditor css -->
<link href="../umeditor/themes/default/css/umeditor.css"
rel="stylesheet">
<style>
.title {
text-align: center;
}
.chat-content-container {
height: 29rem;
overflow-y: scroll;
border: 1px solid silver;
}
</style>
</head>
<body>
<!-- title start -->
<div class="title">
<div class="am-g am-g-fixed">
<div class="am-u-sm-12">
<h1 class="am-text-primary">We Chat</h1>
</div>
</div>
</div>
<!-- title end -->
<!-- chat content start -->
<div class="chat-content">
<div class="am-g am-g-fixed chat-content-container">
<div class="am-u-sm-12">
<ul id="message-list" class="am-comments-list am-comments-list-flip"></ul>
</div>
</div>
</div>
<!-- chat content start -->
<!-- message input start -->
<div class="message-input am-margin-top">
<div class="am-g am-g-fixed">
<div class="am-u-sm-12">
<form class="am-form">
<div class="am-form-group">
<script type="text/plain" id="myEditor"
style="width: 100%; height: 8rem;"></script>
</div>
</form>
</div>
</div>
<div class="am-g am-g-fixed am-margin-top">
<div class="am-u-sm-6">
<div id="message-input-nickname"
class="am-input-group am-input-group-primary">
<span class="am-input-group-label"><i class="am-icon-user"></i></span>
<input id="nickname" value="${username}" type="text"
class="am-form-field" disabled />
</div>
</div>
<div class="am-u-sm-6">
<button id="send" type="button" class="am-btn am-btn-primary">
<i class="am-icon-send"></i> Send
</button>
</div>
</div>
</div>
<!-- message input end -->
<!--[if (gte IE 9)|!(IE)]><!-->
<script src="../assets/js/jquery.min.js"></script>
<!--<![endif]-->
<!--[if lte IE 8 ]>
<script src="http://libs.baidu.com/jquery/1.11.1/jquery.min.js"></script>
<![endif]-->
<!-- umeditor js -->
<script charset="utf-8" src="../umeditor/umeditor.config.js"></script>
<script charset="utf-8" src="../umeditor/umeditor.min.js"></script>
<script src="../umeditor/lang/zh-cn/zh-cn.js"></script>
<script>
$(function() {
// 初始化消息输入框
var um = UM.getEditor(‘myEditor‘);
// 使昵称框获取焦点
$(‘#nickname‘)[0].focus();
var socket = null;
function parseObj(strData) {//转换对象
return (new Function("return " + strData))();
}
;
//创建socket对象
socket = new WebSocket("ws://" + window.location.host
+ "/${pageContext.request.contextPath}/wechat");
//连接创建后调用
socket.onopen = function() {
$("#message-list").append($(‘#nickname‘).val() + "进入聊天室<br/>");
};
//接收到服务器消息后调用
socket.onmessage = function(message) {
var message = parseObj(message.data);
var messageItem = ‘<li class="am-comment ‘
+ (message.isSelf ? ‘am-comment-flip‘ : ‘am-comment‘)
+ ‘">‘
+ ‘<a href="javascript:void(0)" ><img src="../assets/images/‘
+ (message.isSelf ? ‘self.png‘ : ‘others.jpg‘)
+ ‘" class="am-comment-avatar" width="48" height="48"/></a>‘
+ ‘<div class="am-comment-main"><header class="am-comment-hd"><div class="am-comment-meta">‘
+ ‘<a href="javascript:void(0)" class="am-comment-author">‘
+ message.nickname + ‘</a> <time>‘ + message.date
+ ‘</time></div></header>‘
+ ‘<div class="am-comment-bd">‘ + message.content
+ ‘</div></div></li>‘;
$(messageItem).appendTo(‘#message-list‘);
// 把滚动条滚动到底部
$(".chat-content-container").scrollTop(
$(".chat-content-container")[0].scrollHeight);
};
//关闭连接的时候调用
socket.onclose = function() {
$("#message-list").append($(‘#nickname‘).val() + "退出聊天室<br/>");
};
//出错时调用
socket.onerror = function() {
alert("error");
};
$("#send").click(function() {
var nickname = $(‘#nickname‘).val();
// 发送消息
socket.send(JSON.stringify({
content : um.getContent(),
nickname : nickname
}));
// 清空消息输入框
um.setContent(‘‘);
// 消息输入框获取焦点
um.focus();
});
});
</script>
</body>
</html>
后台socket
package com.app.websocket;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Hashtable;
import java.util.Map;
import java.util.Set;
import java.util.logging.Logger;
import javax.websocket.CloseReason;
import javax.websocket.OnClose;
import javax.websocket.OnError;
import javax.websocket.OnMessage;
import javax.websocket.OnOpen;
import javax.websocket.Session;
import javax.websocket.server.ServerEndpoint;
import com.alibaba.fastjson.JSON;
import net.sf.json.JSONObject;
//注意此访问地址格式如:"ws://"+ window.location.host+"/${pageContext.request.contextPath}/wechat"是ws开头的,而不是以http:开头的.
@ServerEndpoint(value = "/wechat")
public class Socket {
private static final SimpleDateFormat DATE_FORMAT = new SimpleDateFormat("yyyy-MM-dd HH:mm"); // 日期格式化
private Logger logger = Logger.getLogger(this.getClass().getName());
static Map<String,Session> sessionMap = new Hashtable<String,Session>();
@OnOpen
public void onOpen(Session session) {
sessionMap.put(session.getId(), session);
}
// @OnMessage
// public void onMessage(String unscrambledWord, Session session) {
// broadcastAll("message",unscrambledWord);
// }
@OnMessage
public void getMessage(String message, Session session) {
Set<Map.Entry<String,Session>> set = sessionMap.entrySet();
// 把客户端的消息解析为JSON对象
JSONObject jsonObject = JSONObject.fromObject(message);
// 在消息中添加发送日期
jsonObject.put("date", DATE_FORMAT.format(new Date()));
// // 把消息发送给所有连接的会话
// for (Session openSession : session.getOpenSessions()) {
// // 添加本条消息是否为当前会话本身发的标志
// jsonObject.put("isSelf", openSession.equals(session));
// // 发送JSON格式的消息
// openSession.getAsyncRemote().sendText(jsonObject.toString());
// }
for(Map.Entry<String,Session> i: set){
try {
jsonObject.put("isSelf", i.getValue().equals(session));
i.getValue().getBasicRemote().sendText(JSON.toJSONString(jsonObject));
} catch (Exception e) {
e.printStackTrace();
}
}
}
// /**
// * 广播给所有人
// * @param message
// */
// public static void broadcastAll(String type,String message){
// Set<Map.Entry<String,Session>> set = sessionMap.entrySet();
// for(Map.Entry<String,Session> i: set){
// try {
// i.getValue().getBasicRemote().sendText("{type:‘"+type+"‘,text:‘"+message+"‘}");
// } catch (Exception e) {
// e.printStackTrace();
// }
// }
// }
@OnClose
public void onClose(Session session, CloseReason closeReason) {
sessionMap.remove(session.getId());
logger.info(String.format("Session %s closed because of %s", session.getId(), closeReason));
}
@OnError
public void error(Session session, java.lang.Throwable throwable){
sessionMap.remove(session.getId());
System.err.println("session "+session.getId()+" error:"+throwable);
}
}
@onmessage里面的改写是为了配合umeditor里面 可以发表情，图片，文件等一系列功能
时间： 2024-11-13 00:46:16