Spring Boot SockJS应用例子
1.SockJS用javascript实现的socket连接,兼容各种浏览器的WebSocket支持库
2.WebSocket是H5的,不支持H5的浏览器没法使用。
3.SockJS它提供类似于websocket的编程模式但是可以适应不同的浏览器(包括不支持websocket的浏览器)。
后端代码:
- <dependency>
- <groupId>org.springframework.boot</groupId>
- <artifactId>spring-boot-starter-websocket</artifactId>
- </dependency>
- package com.cesmart;
- import org.springframework.boot.SpringApplication;
- import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
- import org.springframework.context.ApplicationContext;
- import org.springframework.context.annotation.ComponentScan;
- @EnableAutoConfiguration
- @ComponentScan(basePackages = "com.cesmart") // 扫描那些包得到bean.@ComponentScan({"com.teradata.notification","com.teradata.dal"})
- public class Application {
- public static void main(String[] args) {
- ApplicationContext applicationContext = SpringApplication.run(Application.class, args);
- }
- }
- package com.cesmart.config;
- import org.springframework.web.socket.CloseStatus;
- import org.springframework.web.socket.TextMessage;
- import org.springframework.web.socket.WebSocketHandler;
- import org.springframework.web.socket.WebSocketMessage;
- import org.springframework.web.socket.WebSocketSession;
- public class MyHandler implements WebSocketHandler {
- // 连接继开处理
- @Override
- public void afterConnectionClosed(WebSocketSession arg0, CloseStatus arg1) throws Exception {
- // TODO Auto-generated method stub
- System.out.println("Connection closed..." + arg0.getRemoteAddress().toString());
- }
- // 连接建立处理
- @Override
- public void afterConnectionEstablished(WebSocketSession arg0) throws Exception {
- // TODO Auto-generated method stub
- System.out.println("Connection established..." + arg0.getRemoteAddress().toString());
- }
- // 接收、发送信息处理
- @Override
- public void handleMessage(WebSocketSession arg0, WebSocketMessage<?> arg1) throws Exception {
- // TODO Auto-generated method stub
- try {
- System.out.println("Req: " + arg1.getPayload());
- // 发送信息
- TextMessage returnMessage = new TextMessage(arg1.getPayload() + " received at server");
- arg0.sendMessage(returnMessage);
- } catch (Exception e) {
- e.printStackTrace();
- }
- }
- // 错误处理(客户端突然关闭等接收到的错误)
- @Override
- public void handleTransportError(WebSocketSession arg0, Throwable arg1) throws Exception {
- // TODO Auto-generated method stub
- if (arg0.isOpen()) {
- arg0.close();
- }
- System.out.println(arg1.toString());
- System.out.println("WS connection error,close...");
- }
- @Override
- public boolean supportsPartialMessages() {
- // TODO Auto-generated method stub
- return false;
- }
- }
- package com.cesmart.config;
- import java.util.Map;
- import org.springframework.http.server.ServerHttpRequest;
- import org.springframework.http.server.ServerHttpResponse;
- import org.springframework.web.socket.WebSocketHandler;
- import org.springframework.web.socket.server.support.HttpSessionHandshakeInterceptor;
- /**
- * 类描述:拦截器
- */
- public class MyHandshakeInterceptor extends HttpSessionHandshakeInterceptor {
- @Override
- public void afterHandshake(ServerHttpRequest request, ServerHttpResponse response, WebSocketHandler wsHandler,
- Exception ex) {
- // TODO Auto-generated method stub
- System.out.println("After handshake " + request.getRemoteAddress().toString());
- super.afterHandshake(request, response, wsHandler, ex);
- }
- @Override
- public boolean beforeHandshake(ServerHttpRequest request, ServerHttpResponse response, WebSocketHandler handler,
- Map<String, Object> map) throws Exception {
- // TODO Auto-generated method stub
- System.out.println("Before handshake " + request.getRemoteAddress().toString());
- return super.beforeHandshake(request, response, handler, map);
- }
- }
- package com.cesmart.config;
- import org.springframework.context.annotation.Bean;
- import org.springframework.context.annotation.Configuration;
- import org.springframework.web.socket.config.annotation.EnableWebSocket;
- import org.springframework.web.socket.config.annotation.WebSocketConfigurer;
- import org.springframework.web.socket.config.annotation.WebSocketHandlerRegistry;
- @Configuration // 配置类
- @EnableWebSocket // 声明支持websocket
- public class WebSocketConfig implements WebSocketConfigurer {
- @Override
- public void registerWebSocketHandlers(WebSocketHandlerRegistry registry) {
- // 注册websocket实现类,指定参数访问地址;allowed-origins="*" 允许跨域
- // addHandler是增加处理接口和设定URL
- // addInterceptors是增加拦截器处理(可以不用)
- registry.addHandler(myHandler(), "/ws").addInterceptors(myHandshake()).setAllowedOrigins("*");
- registry.addHandler(myHandler(), "/sockjs/ws").addInterceptors(myHandshake()).withSockJS();
- registry.addHandler(myHandler(), "/ws2").setAllowedOrigins("*");
- registry.addHandler(myHandler(), "/sockjs/ws2").setAllowedOrigins("*").withSockJS();
- }
- @Bean
- public MyHandler myHandler() {
- return new MyHandler();
- }
- @Bean
- public MyHandshakeInterceptor myHandshake() {
- return new MyHandshakeInterceptor();
- }
- }
前端代码:
- <!DOCTYPE html>
- <html>
- <head>
- <meta charset="UTF-8">
- <title>Insert title here</title>
- <script type="text/javascript" src="//cdn.bootcss.com/sockjs-client/1.1.1/sockjs.min.js"></script>
- <script type="text/javascript">
- var url = "127.0.0.1:8090/";
- var websocket = null;
- if ('WebSocket' in window) {
- websocket = new WebSocket("ws://" + url + "/ws");//建立连接
- } else {
- websocket = new SockJS("http://" + url + "/sockjs/ws");//建立连接
- }
- //建立连接处理
- websocket.onopen = onOpen;
- //接收处理
- websocket.onmessage = onMessage;
- //错误处理
- websocket.onerror = onError;
- //断开连接处理
- websocket.onclose = onClose;
- function onOpen(openEvent) {
- document.getElementById("console").innerHTML = document.getElementById("console").innerHTML+ "OPEN<br/>";
- }
- function onMessage(event) {
- document.getElementById("console").innerHTML = document.getElementById("console").innerHTML+ event.data+"<br/>";
- }
- function onError() {
- }
- function onClose() {
- document.getElementById("console").innerHTML = document.getElementById("console").innerHTML+ "CLOSE<br/>";
- }
- function doSend() {
- console.log(websocket.readyState);
- if (websocket.readyState == SockJS.OPEN) {
- var msg = document.getElementById("message").value;
- //发送消息
- websocket.send(msg);
- } else {
- alert("连接失败!");
- }
- }
- function disconnect(){
- if (websocket != null) {
- websocket.close();
- websocket = null;
- }
- }
- function reconnect(){
- if (websocket != null) {
- websocket.close();
- websocket = null;
- }
- if ('WebSocket' in window) {
- websocket = new WebSocket("ws://" + url + "/ws");
- } else {
- websocket = new SockJS("http://" + url + "/sockjs/ws");
- }
- websocket.onopen = onOpen;
- websocket.onmessage = onMessage;
- websocket.onerror = onError;
- websocket.onclose = onClose;
- }
- </script>
- </head>
- <body>
- <div>
- <button id="disconnect" onclick="disconnect()">断开连接</button>
- <button id="send" onclick="doSend()">发送消息</button>
- <button id="reconnect" onclick="reconnect()">重新连接</button>
- </div>
- <div>
- <textarea id="message" style="width: 350px">Here is a message!</textarea>
- </div>
- <div>日志信息:</div>
- <p id="console" width="600px"></p>
- </body>
- </html>
参考(websocket简单应用):http://wiselyman.iteye.com/blog/2003336
参考(应用例子):http://768992698.iteye.com/blog/2338250
参考(应用例子(TextWebSocketHandler )):http://www.cnblogs.com/likun10579/p/5594828.html
Spring Boot SockJS应用例子的更多相关文章
- Spring Boot SOAP Webservice例子
前言 本文将学习如何利用Spring boot快速创建SOAP webservice服务: 虽然目前REST和微服务越来越流行,但是SOAP在某些情况下,仍然有它的用武之地: 在本篇 spring b ...
- Spring Boot 2 + Redis例子
Redis是一个key-value数据库,支持存储的value类型包括string(字符串).list(链表).set(集合).zset(sorted set --有序集合)和hash(哈希类型).在 ...
- spring boot 微服务例子一
package com.example.hello.demo; import org.springframework.boot.SpringApplication;import org.springf ...
- spring boot整合JWT例子
application.properties jwt.expire_time=3600000 jwt.secret=MDk4ZjZiY2Q0NjIxZDM3M2NhZGU0ZTgzMjY34DFDSS ...
- Spring Boot之Hello World
Spring Boot简介 Spring Boot是由Pivotal团队提供的全新框架,其设计目的是用来简化新Spring应用的初始搭建以及开发过程.该框架使用了特定的方式来进行配置,从而使开发人员不 ...
- spring boot面试问题集锦
译文作者:david 原文链接:https://www.javainuse.com/spring/SpringBootInterviewQuestions Q: 什么是spring boot? A: ...
- 1.Spring Boot入门及其jar包依赖模型分析
Spring Boot介绍 Spring Boot是由Pivotal团队提供的新框架,其设计目的是简化Spring应用的搭建以及开发过程.其目标是: 为所有Spring开发提供一个从根本上更快,且方便 ...
- spring boot整合mybatis+mybatis-plus
Spring boot对于我来说是一个刚接触的新东西,学习过程中,发现这东西还是很容易上手的,Spring boot没配置时会默认使用Spring data jpa,这东西可以说一个极简洁的工具,可是 ...
- 面试那点小事,你从未见过的spring boot面试集锦(附详细答案)
一, 什么是spring boot? 多年来,随着新功能的增加,spring变得越来越复杂.只需访问页面https://spring.io/projects,我们将看到所有在应用程序中使用的不同功能的 ...
随机推荐
- [LeetCode] 268. Missing Number 缺失的数字
Given an array containing n distinct numbers taken from 0, 1, 2, ..., n, find the one that is missin ...
- linux:vim中全选复制
全选(高亮显示):按esc后,然后ggvG或者ggVG 全部复制:按esc后,然后ggyG 全部删除:按esc后,然后dG 解析: gg:是让光标移到首行,在vim才有效,vi中无效 v : 是进入V ...
- redhat7.6Linux安装Oracle19C完整版教程
首先安装配置虚拟机,见博客https://www.cnblogs.com/xuzhaoyang/p/11264563.html 然后配置IP地址,见博客https://www.cnblogs.com/ ...
- 影响MySQL的性能(一)磁盘的选择
一.磁盘的选择也是影响MySQL的性能的重大因素之一 1.使用传统的机器硬盘读取数据的过程 2.如何选择传统机器硬盘的因素 二.使用RAID增加传统机器硬盘的性能 1.什么是RAID技术 2.常见的R ...
- Spring笔记3
动态代理** 特点:字节码随用随创建,随用随加载 作用:不修改源码的基础上对方法增强 分类: 基于接口的动态代理 基于子类的动态代理 基于接口的动态代理: 涉及的类:Proxy 如何创建代理对 ...
- STL对map排序
// sort start typedef struct{ ... }Node; // Map的键是字符串,值是结构体.虽然有自动排序特性,但是按字符串的排序并不能符合要求.此时,Map的key可以视 ...
- 面试6 --- 当List<String> list =new ArrayList<String>(20); 他会扩容多少次
当List<String> list =new ArrayList<String>(20); 他会扩容多少次?A 0 B 1 C 2 D 3答案是A: 因为这个集合 ...
- YARN-HA高可用集群搭建
YARN-HA配置 1. YARN-HA工作机制 1.1 官方文档:http://hadoop.apache.org/docs/r2.7.2/hadoop-yarn/hadoop-yarn-site/ ...
- JavaNetty
Netty的简单使用: import io.netty.bootstrap.Bootstrap; import io.netty.buffer.Unpooled; import io.netty.ch ...
- [winfrom]C#中使用SendMessage
在C#中,程序采用了的驱动采用了事件驱动而不是原来的消息驱动,虽然.net框架提供的事件已经十分丰富,但是在以前的系统中定义了丰富的消息对系统的编程提供了方便的实现方法,因此在C#中使用消息有时候还是 ...