java - Springboot websockets无法建立连接java.lang.NoSuchMethodError
问题描述
我正在尝试在我的应用程序中使用 websockets 来提供一对一的私人消息传递。我在实施过程中一直在关注这个项目。使用我的 Angular 前端项目，我能够与作者 github 上的克隆聊天服务建立连接，但是当我尝试连接到我自己的时，我收到了这个错误：
2020-11-04 19:21:53.918 ERROR 21648 --- [nio-7000-exec-9] o.s.w.s.m.StompSubProtocolHandler : Failed to parse TextMessage payload=[CONNECT
ac..], byteCount=56, last=true] in session 0vmhpgm0. Sending STOMP ERROR to client.
java.lang.NoSuchMethodError: 'java.lang.String org.springframework.util.StreamUtils.copyToString(java.io.ByteArrayOutputStream, java.nio.charset.Charset)'
at org.springframework.messaging.simp.stomp.StompDecoder.readCommand(StompDecoder.java:220) ~[spring-messaging-5.2.10.RELEASE.jar:5.2.10.RELEASE]
at org.springframework.messaging.simp.stomp.StompDecoder.decodeMessage(StompDecoder.java:143) ~[spring-messaging-5.2.10.RELEASE.jar:5.2.10.RELEASE]
at org.springframework.messaging.simp.stomp.StompDecoder.decode(StompDecoder.java:115) ~[spring-messaging-5.2.10.RELEASE.jar:5.2.10.RELEASE]
我的项目和另一个项目之间的唯一区别是我使用 postgres，所以我的 repo 和服务不同，但是在错误之前从未到达过此代码，因为我在各处设置了断点并且没有命中。我无法弄清楚这个错误的真正含义，因为它非常模糊，并没有为我指明任何特定的方向。
我的配置：
@Configuration
@EnableWebSocketMessageBroker
public class WebSocketConfig implements WebSocketMessageBrokerConfigurer {
@Override
public void configureMessageBroker(MessageBrokerRegistry config) {
config.enableSimpleBroker("/user");
config.setApplicationDestinationPrefixes("/app");
config.setUserDestinationPrefix("/user");
}
@Override
public void registerStompEndpoints(StompEndpointRegistry registry) {
registry
.addEndpoint("/ws")
.setAllowedOrigins("*")
.withSockJS();
}
@Override
public boolean configureMessageConverters(List<MessageConverter> messageConverters) {
DefaultContentTypeResolver resolver = new DefaultContentTypeResolver();
resolver.setDefaultMimeType(MimeTypeUtils.APPLICATION_JSON);
MappingJackson2MessageConverter converter = new MappingJackson2MessageConverter();
converter.setObjectMapper(new ObjectMapper());
converter.setContentTypeResolver(resolver);
messageConverters.add(converter);
return false;
}
}
聊天控制器：
@Controller
public class ChatController {
@Autowired private SimpMessagingTemplate messagingTemplate;
@Autowired private ChatMessageService chatMessageService;
@Autowired private ChatRoomService chatRoomService;
@MessageMapping("/chat")
public void processMessage(@Payload ChatMessage chatMessage) {
var chatId = chatRoomService
.getChatId(chatMessage.getSenderId(), chatMessage.getRecipientId(), true);
chatMessage.setChatId(chatId.get());
ChatMessage saved = chatMessageService.save(chatMessage);
messagingTemplate.convertAndSendToUser(
chatMessage.getRecipientId().toString(),"/queue/messages",
new ChatNotification(
saved.getId(),
saved.getSenderId(),
saved.getSenderName()));
}
@GetMapping("/messages/{senderId}/{recipientId}/count")
public ResponseEntity<Long> countNewMessages(
@PathVariable UUID senderId,
@PathVariable UUID recipientId) {
return ResponseEntity
.ok(chatMessageService.countNewMessages(senderId, recipientId));
}
@GetMapping("/messages/{senderId}/{recipientId}")
public ResponseEntity<?> findChatMessages ( @PathVariable UUID senderId,
@PathVariable UUID recipientId) {
return ResponseEntity
.ok(chatMessageService.findChatMessages(senderId, recipientId));
}
@GetMapping("/messages/{id}")
public ResponseEntity<?> findMessage ( @PathVariable UUID id) {
return ResponseEntity
.ok(chatMessageService.findById(id));
}
}
正如我所说，我的前端应该不是问题，因为它正在与另一个后端连接，但只是为了确保这是我的角度片段：
import * as Stomp from 'stompjs';
import * as SockJS from 'sockjs-client';
// ...
connect() {
const sockJS = new SockJS(API_URL + 'ws');
this.stompClient = Stomp.over(sockJS);
this.stompClient.connect({}, this.onConnected, this.onError);
}
我很乐意得到一些帮助，因为我什至不知道什么可能被破坏/丢失，这是我第一次使用 websockets，我在网上找不到类似的问题。
编辑：按要求添加 pom 文件：
<?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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>pl.edu.pjatk.mroz</groupId>
<artifactId>project-API</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>project-API</name>
<description>Demo project for Spring Boot</description>
<properties>
<java.version>11</java.version>
<maven.compiler.source>11</maven.compiler.source>
<maven.compiler.target>11</maven.compiler.target>
</properties>
<dependencies>
<!--SPRING-->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>5.2.5.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework.security</groupId>
<artifactId>spring-security-web</artifactId>
<version>5.3.1.RELEASE</version>
</dependency>
<!--SPRINGBOOT-->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot</artifactId>
<version>2.2.6.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
<version>2.2.6.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
<version>2.2.6.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-security</artifactId>
<version>2.2.6.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-tomcat</artifactId>
<version>2.2.6.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-mail</artifactId>
<version>2.3.4.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-thymeleaf</artifactId>
<version>2.3.4.RELEASE</version>
</dependency>
<dependency>
<groupId>com.corundumstudio.socketio</groupId>
<artifactId>netty-socketio</artifactId>
<version>1.7.18</version>
</dependency>
<dependency>
<groupId>org.postgresql</groupId>
<artifactId>postgresql</artifactId>
<version>42.2.12</version>
</dependency>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<version>1.18.12</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.mindrot</groupId>
<artifactId>jbcrypt</artifactId>
<version>0.4</version>
</dependency>
<dependency>
<groupId>io.jsonwebtoken</groupId>
<artifactId>jjwt</artifactId>
<version>0.9.1</version>
</dependency>
<!-- API, java.xml.bind module -->
<dependency>
<groupId>jakarta.xml.bind</groupId>
<artifactId>jakarta.xml.bind-api</artifactId>
<version>2.3.2</version>
</dependency>
<!-- Runtime, com.sun.xml.bind module -->
<dependency>
<groupId>org.glassfish.jaxb</groupId>
<artifactId>jaxb-runtime</artifactId>
<version>2.3.2</version>
</dependency>
<dependency>
<groupId>com.amazonaws</groupId>
<artifactId>aws-java-sdk-s3</artifactId>
<version>1.11.885</version>
</dependency>
<!--testing-->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<version>2.2.6.RELEASE</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework.security</groupId>
<artifactId>spring-security-test</artifactId>
<version>5.3.1.RELEASE</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-websocket</artifactId>
<version>RELEASE</version>
<scope>compile</scope>
</dependency>
</dependencies>
<build>
<finalName>rental</finalName>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<version>2.3.4.RELEASE</version>
</plugin>
</plugins>
</build>
</project>
解决方案
由于您使用的是 Spring Boot，因此您需要对所有工件使用相同的版本。
例如在 pom.xml 你应该有类似这些行的东西：
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.1.1.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-websocket</artifactId>
<version>2.1.1.RELEASE</version>
</dependency>
确保您使用的是相同版本的 springboot 依赖项。
添加 pom.xml 后进行编辑：
以防万一在这里尝试弹簧初始化程序：https ://start.spring.io/以确保您拥有所有正确的版本。将生成的 pom.xml 与您的进行比较。
推荐阅读
- linux - 以 PID 作为操作数并打印其所有子、孙等的 PID 的脚本
- python - 如何在 django 中随机建模？
- c++ - C++ 版本，它们的含义，如何更新它们
- swift - Swift 基础 vs 标准库？
- r - 颜色仅表示 PCA 组
- javascript - react中调用了componentDidMount生命周期方法两次
- r - dplyr 在汇总中使用 n() 来获取不同分组的行数
- symfony - Symfony 5 用户角色
- android - 如何在 Android Jetpack Workmanger 中输入和输出 A Object 数据？
- python-3.x - 在单个图上绘制多个系列