springboot+websocket+angular

爱被打了一巴掌 2022-05-27 07:12 124阅读 0赞

**一、websocket服务端代码参考 另一篇博客 --> [传送门][Link 1]**

**二、ng new socket 创建angular demo项目**

ng new socket

**三、安装 stompjs js库**

npm install stompjs --save

**四、app.component.ts 代码 (和js的写法大同小异)**

import { Component } from '@angular/core';
    const SockJS = require('sockjs-client');
    const Stomp = require('stompjs');
    
    @Component({
      selector: 'app-root',
      templateUrl: './app.component.html',
      styleUrls: ['./app.component.css']
    })
    export class AppComponent {
      title = 'app works!';
      stompClient: any;
    
      constructor() {
        const that = this;
        const socket = new SockJS('http://localhost:8080/websocket-server');
        this.stompClient = Stomp.over(socket);
        this.stompClient.connect({}, function (frame) {
          console.log('Connected: ' + frame);
          that.stompClient.subscribe('/topic/message', function (greeting) {
            alert(greeting);
          });
        }, function (err) {
          console.log('err', err);
        });
      }
    
      send() {
        this.stompClient.send('/server/send', {}, 'send');
      }
    }

**五、app.component.html**

**六、启动java项目和angular项目 访问localhost:4200 点击按钮测试**

[Link 1]: https://blog.csdn.net/zeketao/article/details/79930901