穷则独善其身,达则兼善天下。你既然认准一条道路,又何必去打听要走多久。
本文实例为大家分享了Vue+ssh框架实现在线聊天的具体代码,供大家参考,具体内容如下
效果图
核心部分
websocket编程
向后台发送消息
<template> <el-container> <el-header > </el-header> <el-main> <div class="cht"> <div v-for="(d,index) in mycontent" :key="index"> <my :message="d.mess" :time="d.time" :bl="d.bl"></my> </div> </div> <div class="smess"> <el-row> <el-col :span="18"> <el-input type="textarea" placeholder="请输入内容" v-model="textarea" class="text"></el-input> </el-col> <el-col :span="6"> <br> <el-button type="primary" round @click="mess()">发送消息</el-button> </el-col> </el-row> </div> </el-main> </el-container> </template> <style> .smess{ left: 20%; width:70%; position: absolute; top:70% } .text{ border: 1px solid #409eff; } .cht{ width: 55%; height: 30%; background-color: burlywood; margin-left: 18%; } </style> <script> import router from "../../router/router.js"; import my from "./my"; import axios from "axios"; import Qs from "qs"; var mylogo=localStorage.getItem("logo");//当前的的用户头像 var identity=localStorage.getItem("identity");//当前身份 var name=localStorage.getItem("username");//当前用户名 //从上一个页面获取一个老师名称 var teacher=''; export default { components: { my }, methods: { //在方法里调用this.websocketsend()发送数据给服务器 onConfirm() { //需要传输的数据 var data="你好"; this.websocketsend(JSON.stringify(data)); }, //点击发送把消息给后台 mess(){ var mydata=this.textarea; let data = {msg: mydata}; this.websocketsend(JSON.stringify(data)); }, /* */ initWebSocket() { // 初始化weosocket //获取当前的用户名 this.websock = new WebSocket( "ws://localhost:8080/PsychoSys/javasocket/" +name ); this.websock.onmessage = this.websocketonmessage; this.websock.onerror = this.websocketonerror; this.websock.onopen = this.websocketonopen; this.websock.onclose = this.websocketclose; }, websocketonopen() { // 连接建立之后执行send方法发送数据 let data = { code: 0, msg: "这是client:初次连接" }; }, websocketonerror() { console.log("WebSocket连接失败"); }, websocketonmessage(e) { // 数据接收 var s=eval('(' + e.data + ')'); //把数据都插入到里面去 this.mycontent.push({mess:s.msg,time:s.date,bl:s.isSelf,mylogo:mylogo}); }, websocketsend(Data) { // 数据发送 this.websock.send(Data) }, websocketclose(e) { // 关闭 console.log("已关闭连接", e); } }, created() { console.log("created"); this.initWebSocket(); }, data() { return { websocket: null, textarea:'' , mycontent:[], iden:true }; }, destroyed() { this.websock.close(); } }; </script>
组件my.vue
<template> <div v-if="bl" class="rborders"> <el-row class="ms"> <el-col :span="22"> <el-row><span>{{message}}</span></el-row> <br> <el-row><span class="time">{{time}}</span></el-row> </el-col> <el-col :span="2" > <img src="mylogo" class="logo"/> </el-col> </el-row> </div> <div v-else class="lborders"> <el-row> <el-col :span="2" > <img src="http://localhost:8080/PsychoSys/title/user.png" class="logo"/> </el-col> <br> <el-col :span="12"> <el-row > <el-col :span="24"><span >{{message}}</span></el-col> </el-row> <br> <el-row><span class="time">{{time}}</span></el-row> </el-col> </el-row> </div> </template> <style> .ms{ text-align: right; margin-right: 0%; } .logo{ width:60px; height: 60px; border-radius: 50%; } .time{ font-size:14px; } .lborders{ position: relative; margin-left:0%; } .rborders{ position: relative; margin-right:0%; } </style> <script> export default { props: ['message','time','bl','mylogo'], data() { return { }; }, } </script>
后台代码
package cn.com.socket; import java.io.IOException; import java.text.SimpleDateFormat; import java.util.Date; import java.util.Map; import java.util.concurrent.ConcurrentHashMap; import javax.websocket.OnClose; import javax.websocket.OnError; import javax.websocket.OnMessage; import javax.websocket.OnOpen; import javax.websocket.Session; import javax.websocket.server.PathParam; import javax.websocket.server.ServerEndpoint; import org.hibernate.SessionFactory; import net.sf.json.JSONObject; @ServerEndpoint("/javasocket/{uname}") public class SocketPart { //日期化 private static final SimpleDateFormat DATE_FORMAT = new SimpleDateFormat("yyyy-MM-dd HH:mm"); //存储会话的集合,value类型是java类class SocketPart private static Map<String,SocketPart> map=new ConcurrentHashMap<String,SocketPart>(); private String username; private Session session; private SessionFactory sf; public SessionFactory getSf() { return sf; } public void setSf(SessionFactory sf) { this.sf = sf; } @OnOpen public void open(@PathParam("uname")String username,Session session){ this.username=username; this.session=session; map.put(username,this); } @OnClose public void close(){ map.remove(this.username); try { this.session.close(); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } System.out.println("关闭"); } @OnError public void error(Throwable t) { // 添加处理错误的操作 close(); System.out.println("发生错误"); t.printStackTrace(); } @OnMessage public void mess(String message,Session session){ JSONObject jsonObject = JSONObject.fromObject(message); jsonObject.put("date", DATE_FORMAT.format(new Date())); //把当前集合的大小给前台,不然的话,就不知道怎么存储 jsonObject.put("cusize",map.size()); //接收到信息 for (String s : map.keySet()) { if(this.username.equals(map.get(s).username)){ jsonObject.put("isSelf", true); }else{ jsonObject.put("isSelf", false); } map.get(s).session.getAsyncRemote().sendText(jsonObject.toString()); } } }
注意:导入两个包
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