Spring 弹簧靴座和带网套的角2（踩在袜子上）

是否可以在没有MVC的情况下使用stomp over sockjs。所以我希望在tomcat中有SpringREST接口，并由express运行angular2应用程序

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");
    }
}

@Controller
public class SocketController {

    @Autowired
    private SimpMessagingTemplate template;

    public SocketController() {
        int a = 5;
    }

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

SocketController.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");
    }
}

@Controller
public class SocketController {

    @Autowired
    private SimpMessagingTemplate template;

    public SocketController() {
        int a = 5;
    }

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

和打字脚本代码：

。 . .

。 .

。 .

但由于某种原因，这是行不通的。。在控制台中，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

{“name”：“kitica”}

但消息永远不会回到订户

---

angular2位于端口8001上，spring rest位于8080上。我在使用stomp over SockJs与Java spring boot后端的angular2客户机时遇到了一些问题。以下是我所做的工作：

在角度方面：

找不到this.stompClient.subscribe，请将“this”绑定到“that”

在Java服务器端：

您的控制器需要一个注释，说明返回值的位置，如下所示：

根据你的消息代理

---

希望这有点帮助

令人困惑的是，我使用的是spring boot rest，而不是从tomcat容器中以静态方式提供angular2，我在webpack下有angular2，所以我一直在尝试订阅并发送到相对URL

正确的做法是：

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);
    });
}

}

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();
    }

}

您已将“handle（）”方法值发送给订阅服务器 或者使用 SimpMessageTemplate.convertAndSend（，）； e、 g.-simpMessagingTemplate.convertAndSend（“/topic/chats”，message.getMessage（））

或 @处理程序方法上方的SendTo（“目标url”）。

---

e、 g.-@SendTo（“/topic/message”）

如果你可以在JS中使用它，你可以在Angular2中使用它。我已经用我尝试过的代码示例更新了问题，这是根据他们的文档。你是如何在Angular2应用程序中添加sockJS的？如果你的问题更具体，我可以给出更合适的答案。但它是非常简单的npm安装，稍后在您的typescript文件中，您必须声明变量SockJS和Stomp。我希望这是有帮助的。编辑：参考您使用的npm库？只需“npm install stomp”就足够了吗？请看我上面的回答，它刚刚更新。你是如何在网页包中映射

sockjs客户端的

？我在package.json中只有“sockjs”：“0.3.4”，“stompjs”：“2.3.3”的，其他所有内容都已显示。@关键问题-如果我与套接字失去连接，如何自动重新连接？如果我与套接字失去连接，如何自动重新连接？@Lanou非常感谢，它解决了我的问题！

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

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);
    });
}

}

@Controller
public class SocketController {


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

}

@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();
    }

}