Question

我正在尝试使用Spring websockets建立私人一对一聊天。我正在尝试使用SimpMessagingTemplate.convertAndSendToUser，但它没有将消息中继给用户。我可以建立连接，并且我的addActiveUser端点工作正常，但是SimpMessagingTemplate.convertAndSendToUser不会将我的消息发送回客户端。

谁能看到我想念的东西？这是我的代码。注意：如果有帮助，我的客户代码正在使用angular 7

服务器端 pom.xml

fn main() {
    let a = [10, 20, 30, 40, 50];
    let mut index = 0;
    let mut sum = 0;

    for element in a.iter() {
        index += 1;

        sum = sum + a[index];
    }

    println!("the total sum of array is: {}", sum);
}

WebSocketConfig

<?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>4.0.0</modelVersion>

<groupId>com.gibsams</groupId>
<artifactId>wschatapplication</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>WSChatApplication</name>
<description>Demo project for Spring Boot</description>

<parent>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-parent</artifactId>
    <version>2.1.1.RELEASE</version>
    <relativePath/> <!-- lookup parent from repository -->
</parent>

<properties>
    <java.version>1.8</java.version>
</properties>

<dependencies>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-data-jpa</artifactId>
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-security</artifactId>
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-web</artifactId>
    </dependency>
    <!-- https://mvnrepository.com/artifact/org.springframework.boot/spring-boot-starter-websocket -->
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-websocket</artifactId>
    </dependency>

    <dependency>
        <groupId>mysql</groupId>
        <artifactId>mysql-connector-java</artifactId>
        <scope>runtime</scope>
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-test</artifactId>
        <scope>test</scope>
    </dependency>
    <dependency>
        <groupId>org.springframework.security</groupId>
        <artifactId>spring-security-test</artifactId>
        <scope>test</scope>
    </dependency>
    <!-- For Working with Json Web Tokens (JWT) -->
    <dependency>
        <groupId>io.jsonwebtoken</groupId>
        <artifactId>jjwt</artifactId>
        <version>0.9.1</version>
    </dependency>       


</dependencies>

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

ChatController

@Configuration
@EnableWebSocketMessageBroker
public class WebSocketConfig implements WebSocketMessageBrokerConfigurer {
    @Override
    public void registerStompEndpoints(StompEndpointRegistry registry) {
        registry.addEndpoint("/socket")
        .setAllowedOrigins("*")
        .withSockJS();
    }

    @Override
    public void configureMessageBroker(MessageBrokerRegistry registry) {
        registry.setApplicationDestinationPrefixes("/app");
        registry.enableSimpleBroker("/chat", "/queue");
        registry.setUserDestinationPrefix("/user");
    }
}

ChatMessage

@Controller
@RequestMapping("/api/chat")
public class ChatController {

@Autowired 
private SimpMessagingTemplate simpMessagingTemplate;

@MessageMapping("/send/message")
public void sendMessage(@Payload ChatMessage chatMessage,
        SimpMessageHeaderAccessor headerAccessor
    ) throws Exception {
    simpMessagingTemplate.convertAndSendToUser(chatMessage.getRecipient(), "/queue/reply", chatMessage);

}

@MessageMapping("/send/addActiveUser")
@SendTo("/chat/")
public ChatMessage addActiveUser(@Payload ChatMessage chatMessage, 
        SimpMessageHeaderAccessor headerAccessor
        ) {
    String sender = chatMessage.getSender();
    headerAccessor.getSessionAttributes().put("username", sender);
    return chatMessage;
}
}

客户端

聊天服务

public class ChatMessage {

private String sender;

private String recipient;

private String content;

public ChatMessage() {}

public ChatMessage(String sender, String recipient, String content) {
    this.sender = sender;
    this.recipient = recipient;
    this.content = content;
}

public String getContent() {
    return content;
}

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

public String getSender() {
    return sender;
}

public void setSender(String sender) {
    this.sender = sender;
}

public String getRecipient() {
    return recipient;
}

public void setRecipient(String recipient) {
    this.recipient = recipient;
}

SimpMessagingTemplate convertAndSendToUser（）未将消息中继到客户端

0 个答案: