Spring boot webSocket

Spring boot webSocket

前几天学习了websocket 和Spring boot的结合 这里简单的做了记录,

后台工作

新建一个maven工程

xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
	<modelVersion>4.0.0modelVersion>

	<groupId>com.daijianweigroupId>
	<artifactId>bootscoketartifactId>
	<version>0.0.1-SNAPSHOTversion>
	<packaging>jarpackaging>

	<name>bootscoketname>
	<description>Demo project for Spring Bootdescription>

	<parent>
		<groupId>org.springframework.bootgroupId>
		<artifactId>spring-boot-starter-parentartifactId>
		<version>2.0.2.RELEASEversion>
		<relativePath/> 
	parent>

	<properties>
		<project.build.sourceEncoding>UTF-8project.build.sourceEncoding>
		<project.reporting.outputEncoding>UTF-8project.reporting.outputEncoding>
		<java.version>1.8java.version>
	properties>

	<dependencies>
		<dependency>
			<groupId>org.springframework.bootgroupId>
			<artifactId>spring-boot-starterartifactId>
		dependency>

		<dependency>
			<groupId>org.springframework.bootgroupId>
			<artifactId>spring-boot-starter-testartifactId>
			<scope>testscope>
		dependency>

		<dependency>
			<groupId>org.springframework.bootgroupId>
			<artifactId>spring-boot-starter-websocketartifactId>
		dependency>

		<dependency>
			<groupId>org.webjarsgroupId>
			<artifactId>webjars-locator-coreartifactId>
		dependency>
		<dependency>
			<groupId>org.webjarsgroupId>
			<artifactId>sockjs-clientartifactId>
			<version>1.0.2version>
		dependency>
		<dependency>
			<groupId>org.webjarsgroupId>
			<artifactId>stomp-websocketartifactId>
			<version>2.3.3version>
		dependency>
		<dependency>
			<groupId>org.webjarsgroupId>
			<artifactId>bootstrapartifactId>
			<version>3.3.7version>
		dependency>
		<dependency>
			<groupId>org.webjarsgroupId>
			<artifactId>jqueryartifactId>
			<version>3.1.0version>
		dependency>

	dependencies>

	<build>
		<plugins>
			<plugin>
				<groupId>org.springframework.bootgroupId>
				<artifactId>spring-boot-maven-pluginartifactId>
			plugin>
		plugins>
	build>


project>
复制代码

新建websocket的配置类

WebSocketConfig 配置类

package com.daijianwei.bootscoket.config;

import org.springframework.context.annotation.Configuration;
import org.springframework.messaging.simp.config.MessageBrokerRegistry;
import org.springframework.web.socket.config.annotation.EnableWebSocketMessageBroker;
import org.springframework.web.socket.config.annotation.StompEndpointRegistry;
import org.springframework.web.socket.config.annotation.WebSocketMessageBrokerConfigurer;


@Configuration
@EnableWebSocketMessageBroker
//通过EnableWebSocketMessageBroker 开启使用STOMP协议来传输基于代理(message broker)的消息,此时浏览器支持使用@MessageMapping 就像支持@RequestMapping一样。
public class WebSocketConfig implements WebSocketMessageBrokerConfigurer {

    @Override
    public void configureMessageBroker(MessageBrokerRegistry registry) { //endPoint 注册协议节点,并映射指定的URl
        registry.enableSimpleBroker("/topic");  //注册一个Stomp 协议的endpoint,并指定 SockJS协议。	
    }

    @Override
    public void registerStompEndpoints(StompEndpointRegistry registry) {//配置消息代理(message broker)
        registry.addEndpoint("/gs-guide-websocket").withSockJS();//广播式应配置一个/topic 消息代理
    }
}
复制代码

创建一个消息的接受类

package com.daijianwei.bootscoket.bean;


public class HelloMessage {
    private String name;

    public HelloMessage(){

    }

    public HelloMessage(String name) {
        this.name = name;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }
}
复制代码

创建一个消息返回类

package com.daijianwei.bootscoket.bean;


public class Greeting {

    private String content;

    public Greeting(){}

    public String getContent() {
        return content;
    }

    public void setContent(String content) {
        this.content = content;
    }
}
复制代码

控制器代码

package com.daijianwei.bootscoket.controller;

import com.daijianwei.bootscoket.bean.Greeting;
import com.daijianwei.bootscoket.bean.HelloMessage;
import org.springframework.messaging.handler.annotation.MessageMapping;
import org.springframework.messaging.handler.annotation.SendTo;
import org.springframework.stereotype.Controller;
import org.springframework.web.util.HtmlUtils;


@Controller
public class GreetingController {

    @MessageMapping("/hello")//浏览器发送请求通过@messageMapping 映射/hello 这个地址。
    @SendTo("/topic/greetings")//服务器端有消息时,会订阅@SendTo 中的路径的浏览器发送消息。
    public Greeting greeting(HelloMessage message) throws InterruptedException {
        Thread.sleep(1000);
        return new Greeting("Hello, " + HtmlUtils.htmlEscape(message.getName()) + "!");
    }
}
复制代码

实现前台

添加脚本

在resources地下添加app.js 和main.css 文件

app.js

var stompClient = null;

function setConnected(connected) {
    $("#connect").prop("disabled", connected);
    $("#disconnect").prop("disabled", !connected);
    if (connected) {
        $("#conversation").show();
    }
    else {
        $("#conversation").hide();
    }
    $("#greetings").html("");
}

function connect() {
    var socket = new SockJS('/gs-guide-websocket');
    stompClient = Stomp.over(socket);
    stompClient.connect({}, function (frame) {
        setConnected(true);
        console.log('Connected: ' + frame);
        stompClient.subscribe('/topic/greetings', function (greeting) {
            showGreeting(JSON.parse(greeting.body).content);
        });
    });
}

function disconnect() {
    if (stompClient !== null) {
        stompClient.disconnect();
    }
    setConnected(false);
    console.log("Disconnected");
}

function sendName() {
    stompClient.send("/hello", {}, JSON.stringify({'name': $("#name").val()}));
}

function showGreeting(message) {
    $("#greetings").append("" + message + "");
}

$(function () {
    $("form").on('submit', function (e) {
        e.preventDefault();
    });
    $( "#connect" ).click(function() { connect(); });
    $( "#disconnect" ).click(function() { disconnect(); });
    $( "#send" ).click(function() { sendName(); });
});
复制代码

main.css 文件

body {
    background-color: #f5f5f5;
}

#main-content {
    max-width: 940px;
    padding: 2em 3em;
    margin: 0 auto 20px;
    background-color: #fff;
    border: 1px solid #e5e5e5;
    -webkit-border-radius: 5px;
    -moz-border-radius: 5px;
    border-radius: 5px;
}
复制代码

再添加一个index.html文件


<html>
<head>
    <title>Hello WebSockettitle>
    <link href="/webjars/bootstrap/css/bootstrap.min.css" rel="stylesheet">
    <link href="/main.css" rel="stylesheet">
    <script src="/webjars/jquery/jquery.min.js">script>
    <script src="/webjars/sockjs-client/sockjs.min.js">script>
    <script src="/webjars/stomp-websocket/stomp.min.js">script>
    <script src="/app.js">script>
head>
<body>
<noscript><h2 style="color: #ff0000">Seems your browser doesn't support Javascript! Websocket relies on Javascript being
    enabled. Please enable
    Javascript and reload this page!h2>noscript>
<div id="main-content" class="container">
    <div class="row">
        <div class="col-md-6">
            <form class="form-inline">
                <div class="form-group">
                    <label for="connect">WebSocket connection:label>
                    <button id="connect" class="btn btn-default" type="submit">Connectbutton>
                    <button id="disconnect" class="btn btn-default" type="submit" disabled="disabled">Disconnect
                    button>
                div>
            form>
        div>
        <div class="col-md-6">
            <form class="form-inline">
                <div class="form-group">
                    <label for="name">What is your name?label>
                    <input type="text" id="name" class="form-control" placeholder="Your name here...">
                div>
                <button id="send" class="btn btn-default" type="submit">Sendbutton>
            form>
        div>
    div>
    <div class="row">
        <div class="col-md-12">
            <table id="conversation" class="table table-striped">
                <thead>
                <tr>
                    <th>Greetingsth>
                tr>
                thead>
                <tbody id="greetings">
                tbody>
            table>
        div>
    div>
div>
body>
html>
复制代码

Spring boot 启动类

package com.daijianwei.bootscoket;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;

@SpringBootApplication
public class BootscoketApplication {

	public static void main(String[] args) {
		SpringApplication.run(BootscoketApplication.class, args);
	}
}
复制代码

启动程序 访问 http://localhost:8080/index.html

Spring boot webSocket

前几天学习了websocket 和Spring boot的结合 这里简单的做了记录,

后台工作

新建一个maven工程

xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
	<modelVersion>4.0.0modelVersion>

	<groupId>com.daijianweigroupId>
	<artifactId>bootscoketartifactId>
	<version>0.0.1-SNAPSHOTversion>
	<packaging>jarpackaging>

	<name>bootscoketname>
	<description>Demo project for Spring Bootdescription>

	<parent>
		<groupId>org.springframework.bootgroupId>
		<artifactId>spring-boot-starter-parentartifactId>
		<version>2.0.2.RELEASEversion>
		<relativePath/> 
	parent>

	<properties>
		<project.build.sourceEncoding>UTF-8project.build.sourceEncoding>
		<project.reporting.outputEncoding>UTF-8project.reporting.outputEncoding>
		<java.version>1.8java.version>
	properties>

	<dependencies>
		<dependency>
			<groupId>org.springframework.bootgroupId>
			<artifactId>spring-boot-starterartifactId>
		dependency>

		<dependency>
			<groupId>org.springframework.bootgroupId>
			<artifactId>spring-boot-starter-testartifactId>
			<scope>testscope>
		dependency>

		<dependency>
			<groupId>org.springframework.bootgroupId>
			<artifactId>spring-boot-starter-websocketartifactId>
		dependency>

		<dependency>
			<groupId>org.webjarsgroupId>
			<artifactId>webjars-locator-coreartifactId>
		dependency>
		<dependency>
			<groupId>org.webjarsgroupId>
			<artifactId>sockjs-clientartifactId>
			<version>1.0.2version>
		dependency>
		<dependency>
			<groupId>org.webjarsgroupId>
			<artifactId>stomp-websocketartifactId>
			<version>2.3.3version>
		dependency>
		<dependency>
			<groupId>org.webjarsgroupId>
			<artifactId>bootstrapartifactId>
			<version>3.3.7version>
		dependency>
		<dependency>
			<groupId>org.webjarsgroupId>
			<artifactId>jqueryartifactId>
			<version>3.1.0version>
		dependency>

	dependencies>

	<build>
		<plugins>
			<plugin>
				<groupId>org.springframework.bootgroupId>
				<artifactId>spring-boot-maven-pluginartifactId>
			plugin>
		plugins>
	build>


project>
复制代码

新建websocket的配置类

WebSocketConfig 配置类

package com.daijianwei.bootscoket.config;

import org.springframework.context.annotation.Configuration;
import org.springframework.messaging.simp.config.MessageBrokerRegistry;
import org.springframework.web.socket.config.annotation.EnableWebSocketMessageBroker;
import org.springframework.web.socket.config.annotation.StompEndpointRegistry;
import org.springframework.web.socket.config.annotation.WebSocketMessageBrokerConfigurer;


@Configuration
@EnableWebSocketMessageBroker
//通过EnableWebSocketMessageBroker 开启使用STOMP协议来传输基于代理(message broker)的消息,此时浏览器支持使用@MessageMapping 就像支持@RequestMapping一样。
public class WebSocketConfig implements WebSocketMessageBrokerConfigurer {

    @Override
    public void configureMessageBroker(MessageBrokerRegistry registry) { //endPoint 注册协议节点,并映射指定的URl
        registry.enableSimpleBroker("/topic");  //注册一个Stomp 协议的endpoint,并指定 SockJS协议。	
    }

    @Override
    public void registerStompEndpoints(StompEndpointRegistry registry) {//配置消息代理(message broker)
        registry.addEndpoint("/gs-guide-websocket").withSockJS();//广播式应配置一个/topic 消息代理
    }
}
复制代码

创建一个消息的接受类

package com.daijianwei.bootscoket.bean;


public class HelloMessage {
    private String name;

    public HelloMessage(){

    }

    public HelloMessage(String name) {
        this.name = name;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }
}
复制代码

创建一个消息返回类

package com.daijianwei.bootscoket.bean;


public class Greeting {

    private String content;

    public Greeting(){}

    public String getContent() {
        return content;
    }

    public void setContent(String content) {
        this.content = content;
    }
}
复制代码

控制器代码

package com.daijianwei.bootscoket.controller;

import com.daijianwei.bootscoket.bean.Greeting;
import com.daijianwei.bootscoket.bean.HelloMessage;
import org.springframework.messaging.handler.annotation.MessageMapping;
import org.springframework.messaging.handler.annotation.SendTo;
import org.springframework.stereotype.Controller;
import org.springframework.web.util.HtmlUtils;


@Controller
public class GreetingController {

    @MessageMapping("/hello")//浏览器发送请求通过@messageMapping 映射/hello 这个地址。
    @SendTo("/topic/greetings")//服务器端有消息时,会订阅@SendTo 中的路径的浏览器发送消息。
    public Greeting greeting(HelloMessage message) throws InterruptedException {
        Thread.sleep(1000);
        return new Greeting("Hello, " + HtmlUtils.htmlEscape(message.getName()) + "!");
    }
}
复制代码

实现前台

添加脚本

在resources地下添加app.js 和main.css 文件

app.js

var stompClient = null;

function setConnected(connected) {
    $("#connect").prop("disabled", connected);
    $("#disconnect").prop("disabled", !connected);
    if (connected) {
        $("#conversation").show();
    }
    else {
        $("#conversation").hide();
    }
    $("#greetings").html("");
}

function connect() {
    var socket = new SockJS('/gs-guide-websocket');
    stompClient = Stomp.over(socket);
    stompClient.connect({}, function (frame) {
        setConnected(true);
        console.log('Connected: ' + frame);
        stompClient.subscribe('/topic/greetings', function (greeting) {
            showGreeting(JSON.parse(greeting.body).content);
        });
    });
}

function disconnect() {
    if (stompClient !== null) {
        stompClient.disconnect();
    }
    setConnected(false);
    console.log("Disconnected");
}

function sendName() {
    stompClient.send("/hello", {}, JSON.stringify({'name': $("#name").val()}));
}

function showGreeting(message) {
    $("#greetings").append("" + message + "");
}

$(function () {
    $("form").on('submit', function (e) {
        e.preventDefault();
    });
    $( "#connect" ).click(function() { connect(); });
    $( "#disconnect" ).click(function() { disconnect(); });
    $( "#send" ).click(function() { sendName(); });
});
复制代码

main.css 文件

body {
    background-color: #f5f5f5;
}

#main-content {
    max-width: 940px;
    padding: 2em 3em;
    margin: 0 auto 20px;
    background-color: #fff;
    border: 1px solid #e5e5e5;
    -webkit-border-radius: 5px;
    -moz-border-radius: 5px;
    border-radius: 5px;
}
复制代码

再添加一个index.html文件


<html>
<head>
    <title>Hello WebSockettitle>
    <link href="/webjars/bootstrap/css/bootstrap.min.css" rel="stylesheet">
    <link href="/main.css" rel="stylesheet">
    <script src="/webjars/jquery/jquery.min.js">script>
    <script src="/webjars/sockjs-client/sockjs.min.js">script>
    <script src="/webjars/stomp-websocket/stomp.min.js">script>
    <script src="/app.js">script>
head>
<body>
<noscript><h2 style="color: #ff0000">Seems your browser doesn't support Javascript! Websocket relies on Javascript being
    enabled. Please enable
    Javascript and reload this page!h2>noscript>
<div id="main-content" class="container">
    <div class="row">
        <div class="col-md-6">
            <form class="form-inline">
                <div class="form-group">
                    <label for="connect">WebSocket connection:label>
                    <button id="connect" class="btn btn-default" type="submit">Connectbutton>
                    <button id="disconnect" class="btn btn-default" type="submit" disabled="disabled">Disconnect
                    button>
                div>
            form>
        div>
        <div class="col-md-6">
            <form class="form-inline">
                <div class="form-group">
                    <label for="name">What is your name?label>
                    <input type="text" id="name" class="form-control" placeholder="Your name here...">
                div>
                <button id="send" class="btn btn-default" type="submit">Sendbutton>
            form>
        div>
    div>
    <div class="row">
        <div class="col-md-12">
            <table id="conversation" class="table table-striped">
                <thead>
                <tr>
                    <th>Greetingsth>
                tr>
                thead>
                <tbody id="greetings">
                tbody>
            table>
        div>
    div>
div>
body>
html>
复制代码

Spring boot 启动类

package com.daijianwei.bootscoket;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;

@SpringBootApplication
public class BootscoketApplication {

	public static void main(String[] args) {
		SpringApplication.run(BootscoketApplication.class, args);
	}
}
复制代码

启动程序 访问 http://localhost:8080/index.html

点击connect 链接websocket端口

同时打开另外一个窗口,访问http://localhost:8080/index.html

![](# Spring boot webSocket

前几天学习了websocket 和Spring boot的结合 这里简单的做了记录,

后台工作

新建一个maven工程

xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
	<modelVersion>4.0.0modelVersion>

	<groupId>com.daijianweigroupId>
	<artifactId>bootscoketartifactId>
	<version>0.0.1-SNAPSHOTversion>
	<packaging>jarpackaging>

	<name>bootscoketname>
	<description>Demo project for Spring Bootdescription>

	<parent>
		<groupId>org.springframework.bootgroupId>
		<artifactId>spring-boot-starter-parentartifactId>
		<version>2.0.2.RELEASEversion>
		<relativePath/> 
	parent>

	<properties>
		<project.build.sourceEncoding>UTF-8project.build.sourceEncoding>
		<project.reporting.outputEncoding>UTF-8project.reporting.outputEncoding>
		<java.version>1.8java.version>
	properties>

	<dependencies>
		<dependency>
			<groupId>org.springframework.bootgroupId>
			<artifactId>spring-boot-starterartifactId>
		dependency>

		<dependency>
			<groupId>org.springframework.bootgroupId>
			<artifactId>spring-boot-starter-testartifactId>
			<scope>testscope>
		dependency>

		<dependency>
			<groupId>org.springframework.bootgroupId>
			<artifactId>spring-boot-starter-websocketartifactId>
		dependency>

		<dependency>
			<groupId>org.webjarsgroupId>
			<artifactId>webjars-locator-coreartifactId>
		dependency>
		<dependency>
			<groupId>org.webjarsgroupId>
			<artifactId>sockjs-clientartifactId>
			<version>1.0.2version>
		dependency>
		<dependency>
			<groupId>org.webjarsgroupId>
			<artifactId>stomp-websocketartifactId>
			<version>2.3.3version>
		dependency>
		<dependency>
			<groupId>org.webjarsgroupId>
			<artifactId>bootstrapartifactId>
			<version>3.3.7version>
		dependency>
		<dependency>
			<groupId>org.webjarsgroupId>
			<artifactId>jqueryartifactId>
			<version>3.1.0version>
		dependency>

	dependencies>

	<build>
		<plugins>
			<plugin>
				<groupId>org.springframework.bootgroupId>
				<artifactId>spring-boot-maven-pluginartifactId>
			plugin>
		plugins>
	build>


project>
复制代码

新建websocket的配置类

WebSocketConfig 配置类

package com.daijianwei.bootscoket.config;

import org.springframework.context.annotation.Configuration;
import org.springframework.messaging.simp.config.MessageBrokerRegistry;
import org.springframework.web.socket.config.annotation.EnableWebSocketMessageBroker;
import org.springframework.web.socket.config.annotation.StompEndpointRegistry;
import org.springframework.web.socket.config.annotation.WebSocketMessageBrokerConfigurer;


@Configuration
@EnableWebSocketMessageBroker
//通过EnableWebSocketMessageBroker 开启使用STOMP协议来传输基于代理(message broker)的消息,此时浏览器支持使用@MessageMapping 就像支持@RequestMapping一样。
public class WebSocketConfig implements WebSocketMessageBrokerConfigurer {

    @Override
    public void configureMessageBroker(MessageBrokerRegistry registry) { //endPoint 注册协议节点,并映射指定的URl
        registry.enableSimpleBroker("/topic");  //注册一个Stomp 协议的endpoint,并指定 SockJS协议。	
    }

    @Override
    public void registerStompEndpoints(StompEndpointRegistry registry) {//配置消息代理(message broker)
        registry.addEndpoint("/gs-guide-websocket").withSockJS();//广播式应配置一个/topic 消息代理
    }
}
复制代码

创建一个消息的接受类

package com.daijianwei.bootscoket.bean;

public class HelloMessage {
    private String name;

    public HelloMessage(){

    }

    public HelloMessage(String name) {
        this.name = name;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }
}
复制代码

创建一个消息返回类

package com.daijianwei.bootscoket.bean;


public class Greeting {

    private String content;

    public Greeting(){}

    public String getContent() {
        return content;
    }

    public void setContent(String content) {
        this.content = content;
    }
}
复制代码

控制器代码

package com.daijianwei.bootscoket.controller;

import com.daijianwei.bootscoket.bean.Greeting;
import com.daijianwei.bootscoket.bean.HelloMessage;
import org.springframework.messaging.handler.annotation.MessageMapping;
import org.springframework.messaging.handler.annotation.SendTo;
import org.springframework.stereotype.Controller;
import org.springframework.web.util.HtmlUtils;

@Controller
public class GreetingController {

    @MessageMapping("/hello")//浏览器发送请求通过@messageMapping 映射/hello 这个地址。
    @SendTo("/topic/greetings")//服务器端有消息时,会订阅@SendTo 中的路径的浏览器发送消息。
    public Greeting greeting(HelloMessage message) throws InterruptedException {
        Thread.sleep(1000);
        return new Greeting("Hello, " + HtmlUtils.htmlEscape(message.getName()) + "!");
    }
}
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实现前台

添加脚本

在resources地下添加app.js 和main.css 文件

app.js

var stompClient = null;

function setConnected(connected) {
    $("#connect").prop("disabled", connected);
    $("#disconnect").prop("disabled", !connected);
    if (connected) {
        $("#conversation").show();
    }
    else {
        $("#conversation").hide();
    }
    $("#greetings").html("");
}

function connect() {
    var socket = new SockJS('/gs-guide-websocket');
    stompClient = Stomp.over(socket);
    stompClient.connect({}, function (frame) {
        setConnected(true);
        console.log('Connected: ' + frame);
        stompClient.subscribe('/topic/greetings', function (greeting) {
            showGreeting(JSON.parse(greeting.body).content);
        });
    });
}

function disconnect() {
    if (stompClient !== null) {
        stompClient.disconnect();
    }
    setConnected(false);
    console.log("Disconnected");
}

function sendName() {
    stompClient.send("/hello", {}, JSON.stringify({'name': $("#name").val()}));
}

function showGreeting(message) {
    $("#greetings").append("" + message + "");
}

$(function () {
    $("form").on('submit', function (e) {
        e.preventDefault();
    });
    $( "#connect" ).click(function() { connect(); });
    $( "#disconnect" ).click(function() { disconnect(); });
    $( "#send" ).click(function() { sendName(); });
});
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main.css 文件

body {
    background-color: #f5f5f5;
}

#main-content {
    max-width: 940px;
    padding: 2em 3em;
    margin: 0 auto 20px;
    background-color: #fff;
    border: 1px solid #e5e5e5;
    -webkit-border-radius: 5px;
    -moz-border-radius: 5px;
    border-radius: 5px;
}
复制代码

再添加一个index.html文件


<html>
<head>
    <title>Hello WebSockettitle>
    <link href="/webjars/bootstrap/css/bootstrap.min.css" rel="stylesheet">
    <link href="/main.css" rel="stylesheet">
    <script src="/webjars/jquery/jquery.min.js">script>
    <script src="/webjars/sockjs-client/sockjs.min.js">script>
    <script src="/webjars/stomp-websocket/stomp.min.js">script>
    <script src="/app.js">script>
head>
<body>
<noscript><h2 style="color: #ff0000">Seems your browser doesn't support Javascript! Websocket relies on Javascript being
    enabled. Please enable
    Javascript and reload this page!h2>noscript>
<div id="main-content" class="container">
    <div class="row">
        <div class="col-md-6">
            <form class="form-inline">
                <div class="form-group">
                    <label for="connect">WebSocket connection:label>
                    <button id="connect" class="btn btn-default" type="submit">Connectbutton>
                    <button id="disconnect" class="btn btn-default" type="submit" disabled="disabled">Disconnect
                    button>
                div>
            form>
        div>
        <div class="col-md-6">
            <form class="form-inline">
                <div class="form-group">
                    <label for="name">What is your name?label>
                    <input type="text" id="name" class="form-control" placeholder="Your name here...">
                div>
                <button id="send" class="btn btn-default" type="submit">Sendbutton>
            form>
        div>
    div>
    <div class="row">
        <div class="col-md-12">
            <table id="conversation" class="table table-striped">
                <thead>
                <tr>
                    <th>Greetingsth>
                tr>
                thead>
                <tbody id="greetings">
                tbody>
            table>
        div>
    div>
div>
body>
html>
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Spring boot 启动类

package com.daijianwei.bootscoket;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;

@SpringBootApplication
public class BootscoketApplication {

	public static void main(String[] args) {
		SpringApplication.run(BootscoketApplication.class, args);
	}
}
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启动程序 访问 http://localhost:8080/index.html

Spring boot webSocket

前几天学习了websocket 和Spring boot的结合 这里简单的做了记录,

后台工作

新建一个maven工程

xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
	<modelVersion>4.0.0modelVersion>

	<groupId>com.daijianweigroupId>
	<artifactId>bootscoketartifactId>
	<version>0.0.1-SNAPSHOTversion>
	<packaging>jarpackaging>

	<name>bootscoketname>
	<description>Demo project for Spring Bootdescription>

	<parent>
		<groupId>org.springframework.bootgroupId>
		<artifactId>spring-boot-starter-parentartifactId>
		<version>2.0.2.RELEASEversion>
		<relativePath/> 
	parent>

	<properties>
		<project.build.sourceEncoding>UTF-8project.build.sourceEncoding>
		<project.reporting.outputEncoding>UTF-8project.reporting.outputEncoding>
		<java.version>1.8java.version>
	properties>

	<dependencies>
		<dependency>
			<groupId>org.springframework.bootgroupId>
			<artifactId>spring-boot-starterartifactId>
		dependency>

		<dependency>
			<groupId>org.springframework.bootgroupId>
			<artifactId>spring-boot-starter-testartifactId>
			<scope>testscope>
		dependency>

		<dependency>
			<groupId>org.springframework.bootgroupId>
			<artifactId>spring-boot-starter-websocketartifactId>
		dependency>

		<dependency>
			<groupId>org.webjarsgroupId>
			<artifactId>webjars-locator-coreartifactId>
		dependency>
		<dependency>
			<groupId>org.webjarsgroupId>
			<artifactId>sockjs-clientartifactId>
			<version>1.0.2version>
		dependency>
		<dependency>
			<groupId>org.webjarsgroupId>
			<artifactId>stomp-websocketartifactId>
			<version>2.3.3version>
		dependency>
		<dependency>
			<groupId>org.webjarsgroupId>
			<artifactId>bootstrapartifactId>
			<version>3.3.7version>
		dependency>
		<dependency>
			<groupId>org.webjarsgroupId>
			<artifactId>jqueryartifactId>
			<version>3.1.0version>
		dependency>

	dependencies>

	<build>
		<plugins>
			<plugin>
				<groupId>org.springframework.bootgroupId>
				<artifactId>spring-boot-maven-pluginartifactId>
			plugin>
		plugins>
	build>


project>
复制代码

新建websocket的配置类

WebSocketConfig 配置类

package com.daijianwei.bootscoket.config;

import org.springframework.context.annotation.Configuration;
import org.springframework.messaging.simp.config.MessageBrokerRegistry;
import org.springframework.web.socket.config.annotation.EnableWebSocketMessageBroker;
import org.springframework.web.socket.config.annotation.StompEndpointRegistry;
import org.springframework.web.socket.config.annotation.WebSocketMessageBrokerConfigurer;


@Configuration
@EnableWebSocketMessageBroker
//通过EnableWebSocketMessageBroker 开启使用STOMP协议来传输基于代理(message broker)的消息,此时浏览器支持使用@MessageMapping 就像支持@RequestMapping一样。
public class WebSocketConfig implements WebSocketMessageBrokerConfigurer {

    @Override
    public void configureMessageBroker(MessageBrokerRegistry registry) { //endPoint 注册协议节点,并映射指定的URl
        registry.enableSimpleBroker("/topic");  //注册一个Stomp 协议的endpoint,并指定 SockJS协议。	
    }

    @Override
    public void registerStompEndpoints(StompEndpointRegistry registry) {//配置消息代理(message broker)
        registry.addEndpoint("/gs-guide-websocket").withSockJS();//广播式应配置一个/topic 消息代理
    }
}
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创建一个消息的接受类

package com.daijianwei.bootscoket.bean;


public class HelloMessage {
    private String name;

    public HelloMessage(){

    }

    public HelloMessage(String name) {
        this.name = name;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }
}
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创建一个消息返回类

package com.daijianwei.bootscoket.bean;


public class Greeting {

    private String content;

    public Greeting(){}

    public String getContent() {
        return content;
    }

    public void setContent(String content) {
        this.content = content;
    }
}
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控制器代码

package com.daijianwei.bootscoket.controller;

import com.daijianwei.bootscoket.bean.Greeting;
import com.daijianwei.bootscoket.bean.HelloMessage;
import org.springframework.messaging.handler.annotation.MessageMapping;
import org.springframework.messaging.handler.annotation.SendTo;
import org.springframework.stereotype.Controller;
import org.springframework.web.util.HtmlUtils;


@Controller
public class GreetingController {

    @MessageMapping("/hello")//浏览器发送请求通过@messageMapping 映射/hello 这个地址。
    @SendTo("/topic/greetings")//服务器端有消息时,会订阅@SendTo 中的路径的浏览器发送消息。
    public Greeting greeting(HelloMessage message) throws InterruptedException {
        Thread.sleep(1000);
        return new Greeting("Hello, " + HtmlUtils.htmlEscape(message.getName()) + "!");
    }
}
复制代码

实现前台

添加脚本

在resources地下添加app.js 和main.css 文件

app.js

var stompClient = null;

function setConnected(connected) {
    $("#connect").prop("disabled", connected);
    $("#disconnect").prop("disabled", !connected);
    if (connected) {
        $("#conversation").show();
    }
    else {
        $("#conversation").hide();
    }
    $("#greetings").html("");
}

function connect() {
    var socket = new SockJS('/gs-guide-websocket');
    stompClient = Stomp.over(socket);
    stompClient.connect({}, function (frame) {
        setConnected(true);
        console.log('Connected: ' + frame);
        stompClient.subscribe('/topic/greetings', function (greeting) {
            showGreeting(JSON.parse(greeting.body).content);
        });
    });
}

function disconnect() {
    if (stompClient !== null) {
        stompClient.disconnect();
    }
    setConnected(false);
    console.log("Disconnected");
}

function sendName() {
    stompClient.send("/hello", {}, JSON.stringify({'name': $("#name").val()}));
}

function showGreeting(message) {
    $("#greetings").append("" + message + "");
}

$(function () {
    $("form").on('submit', function (e) {
        e.preventDefault();
    });
    $( "#connect" ).click(function() { connect(); });
    $( "#disconnect" ).click(function() { disconnect(); });
    $( "#send" ).click(function() { sendName(); });
});
复制代码

main.css 文件

body {
    background-color: #f5f5f5;
}

#main-content {
    max-width: 940px;
    padding: 2em 3em;
    margin: 0 auto 20px;
    background-color: #fff;
    border: 1px solid #e5e5e5;
    -webkit-border-radius: 5px;
    -moz-border-radius: 5px;
    border-radius: 5px;
}
复制代码

再添加一个index.html文件


<html>
<head>
    <title>Hello WebSockettitle>
    <link href="/webjars/bootstrap/css/bootstrap.min.css" rel="stylesheet">
    <link href="/main.css" rel="stylesheet">
    <script src="/webjars/jquery/jquery.min.js">script>
    <script src="/webjars/sockjs-client/sockjs.min.js">script>
    <script src="/webjars/stomp-websocket/stomp.min.js">script>
    <script src="/app.js">script>
head>
<body>
<noscript><h2 style="color: #ff0000">Seems your browser doesn't support Javascript! Websocket relies on Javascript being
    enabled. Please enable
    Javascript and reload this page!h2>noscript>
<div id="main-content" class="container">
    <div class="row">
        <div class="col-md-6">
            <form class="form-inline">
                <div class="form-group">
                    <label for="connect">WebSocket connection:label>
                    <button id="connect" class="btn btn-default" type="submit">Connectbutton>
                    <button id="disconnect" class="btn btn-default" type="submit" disabled="disabled">Disconnect
                    button>
                div>
            form>
        div>
        <div class="col-md-6">
            <form class="form-inline">
                <div class="form-group">
                    <label for="name">What is your name?label>
                    <input type="text" id="name" class="form-control" placeholder="Your name here...">
                div>
                <button id="send" class="btn btn-default" type="submit">Sendbutton>
            form>
        div>
    div>
    <div class="row">
        <div class="col-md-12">
            <table id="conversation" class="table table-striped">
                <thead>
                <tr>
                    <th>Greetingsth>
                tr>
                thead>
                <tbody id="greetings">
                tbody>
            table>
        div>
    div>
div>
body>
html>
复制代码

Spring boot 启动类

package com.daijianwei.bootscoket;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;

@SpringBootApplication
public class BootscoketApplication {

	public static void main(String[] args) {
		SpringApplication.run(BootscoketApplication.class, args);
	}
}
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启动程序 访问 http://localhost:8080/index.html

点击connect 链接websocket端口

同时打开另外一个窗口,访问http://localhost:8080/index.html

在其中一个窗口输入文字

另一种方式(服务端广播式)

利用SimpMessagingTemplate 实现广播式推送

增加一个类

WebSocketController

package com.daijianwei.bootscoket.controller;

import com.daijianwei.bootscoket.bean.Greeting;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.messaging.simp.SimpMessagingTemplate;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;


@Controller
public class WebSocketController {

    @Autowired
    private SimpMessagingTemplate simpMessagingTemplate;

    @RequestMapping("/Welcome1")
    @ResponseBody
    public String say2() throws Exception {
        for (int i = 0; i < 10; i++) {
            Thread.sleep(1000);
            // 每次向/topic/greetings 发送消息
            simpMessagingTemplate.convertAndSend("/topic/greetings", new Greeting("daijianwei" + i));
            System.out.println("----------------------send" + i);
        }
        return "is ok";
    }

}
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同样在在浏览器的界面访问 http://localhost:8080/Welcome1

可以看到在两个界面的效果

参考文档

原spring boot +WebSocket 广播式(一) messaging-stomp-websocket SpringBoot中的WebSocket点对点发送消息

转载于:https://juejin.im/post/5b2b4bf9e51d4558c6520bdc

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