Question

是否可以在没有MVC的情况下使用stock over sockjs。所以我想在tomcat中有spring rest接口，而angular2应用程序由express运行。

WebSocketConfig.java

@Configuration
@EnableWebSocketMessageBroker
public class WebSocketConfig extends AbstractWebSocketMessageBrokerConfigurer {

    @Override
    public void registerStompEndpoints(StompEndpointRegistry registry) {
        // the endpoint for websocket connections
        registry.addEndpoint("/portfolio").setAllowedOrigins("*").withSockJS();
    }

    @Override
    public void configureMessageBroker(MessageBrokerRegistry config) {
        config.setApplicationDestinationPrefixes("/app");
        config.enableSimpleBroker("/topic");
    }
}

SocketController.java

@Controller
public class SocketController {

    @Autowired
    private SimpMessagingTemplate template;

    public SocketController() {
        int a = 5;
    }

    @MessageMapping("/greeting")
    public String handle(String greeting) {
        return "[" + "greeting" + ": " + greeting;
    }
}

和打字稿代码：

。。。

constructor() {

        var socket = new SockJS('http://localhost:8080/portfolio');
        this.stompClient = Stomp.over(socket);
        this.stompClient.connect("guest", "guest", function(frame) {
            console.log('Connected: ' + frame);
            this.stompClient.subscribe('http://localhost:8080/topic/greeting', function(greeting) {
                console.log("from from", greeting);
            });
        }, function (err) {
            console.log('err', err);
        });
    }

。。

send() {
    this.stompClient.send("http://localhost:8080/app/greeting", {}, JSON.stringify({ 'name': "kitica" }));
}

。。

但由于某种原因，这不起作用..在控制台我得到输出：

Opening Web Socket...
stomp.js:134 Web Socket Opened...
stomp.js:134 >>> CONNECT
login:guest
passcode:guest
accept-version:1.1,1.0
heart-beat:10000,10000



stomp.js:134 <<< CONNECTED
version:1.1
heart-beat:0,0



stomp.js:134 connected to server undefined
activity-socket.ts:17 Connected: CONNECTED
heart-beat:0,0
version:1.1

当我发送时，我得到了

>>> SEND
destination:http://localhost:8080/app/greeting
content-length:17

{＆＃34;名称＆＃34;：＆＃34; kitica＆＃34;}

但是消息永远不会回到订阅者身上。

angular2在端口8001上，弹簧支架在8080上

Answer 1

令人困惑的部分是我使用spring-boot-rest并且我没有将tom2作为静态来自tomcat容器，我在webpack下有angular2所以我不断尝试订阅并发送到相对URL。

正确的方法是：

import {Component} from '@angular/core';
import {ActivityService} from '../common/services';
import {MaterializeDirective} from 'angular2-materialize';
import {LarsActionButtonComponent} from '../common/components';

var SockJS = require('sockjs-client');
var Stomp = require('stompjs');

@Component({
selector: 'activity',
providers: [ActivityService],
directives: [MaterializeDirective, LarsActionButtonComponent],
templateUrl: 'app/activity/activity.html'
})

export class Activity {
stompClient: any;

activityId: any;
text: any;
messages: Array<String> = new Array<String>();

constructor() {
}

send() {
    this.stompClient.send('/app/hello/' + this.activityId, {},      JSON.stringify({ 'name': this.text }));
}

connect() {
    var that = this;
    var socket = new SockJS('tst-rest.mypageexample/hello?activityId=' + this.activityId);
    this.stompClient = Stomp.over(socket);
    this.stompClient.connect({}, function (frame) {
        console.log('Connected: ' + frame);
        that.stompClient.subscribe('/topic/greetings/' + that.activityId, function (greeting) {
            that.messages.push(JSON.parse(greeting.body).content);
        });
    }, function (err) {
        console.log('err', err);
    });
}

}

并在春季控制器中：

@Controller
public class SocketController {


@MessageMapping("/hello")
@SendTo("/topic/greetings")
public Greeting greeting(HelloMessage message) throws Exception {
    return new Greeting("Hello, " + message.getName() + "!");
}

}

配置类：

@Configuration
@EnableWebSocketMessageBroker
public class WebSocketConfig extends AbstractWebSocketMessageBrokerConfigurer {

    @Override
    public void configureMessageBroker(MessageBrokerRegistry config) {
        config.enableSimpleBroker("/topic");
        config.setApplicationDestinationPrefixes("/app");
    }

    @Override
    public void registerStompEndpoints(StompEndpointRegistry registry) {
        registry.addEndpoint("/hello").setAllowedOrigins("*").withSockJS();
    }

}

Answer 2

我自己有一些问题可以使用一个使用SockJs和一个Java spring-boot后端的angular2客户端。在这里我做了什么让它工作：

在角度方面：

this.stompClient.subscribe无法找到，所以绑定＆＃34;这个＆＃34;到＆＃34;那＆＃34;。

constructor() {
    var that = this;
    var socket = new SockJS('http://localhost:8080/portfolio');
    this.stompClient = Stomp.over(socket);
    this.stompClient.connect("guest", "guest", function(frame) {
        console.log('Connected: ' + frame);
        that.stompClient.subscribe('http://localhost:8080/topic/greeting', function(greeting) {
            console.log("from from", greeting);
        });
    }, function (err) {
        console.log('err', err);
    });
}

在Java服务器端：

您的控制器需要一个注释，表示返回vallue的位置如下：

@MessageMapping("/greeting")
@SendTo("/topic/greetings")
public String handle(String greeting) {
    return "[" + "greeting" + ": " + greeting;
}

根据您的留言经纪人。

希望有所帮助。

Answer 3

您已将'handle（）'方法值发送给订阅者要么使用 simpMessagingTemplate.convertAndSend（，）; eg-simpMessagingTemplate.convertAndSend（“/ topic / chats”，message.getMessage（））;

或处理程序方法上方的@SendTo（“目标网址”）。 eg- @SendTo（“/ topic / message”）

弹簧靴休息和angular2与websocket（stomp over sockjs）

3 个答案: