Gettingorg.springframework.messaging.converter.messageconversionexception in Chat Application

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//Controller class code package com.chat.main.controller; import org.springframework.messaging.handler.annotation.MessageMapping; import org.springframework.messaging.handler.annotation.SendTo; import org.springframework.stereotype.Controller; import org.springframework.web.bind.annotation.GetMapping; import com.chat.main.model.ChatMessage; @Controller public class ChatController { @MessageMapping("/sendMessage") @SendTo("/topic/messages") public ChatMessage sendMessage(ChatMessage message) { return message; } @GetMapping("/chat") public String chat() { return "chat"; } }

//Websocket configuration code package com.chat.main.config; import org.springframework.context.annotation.Configuration; import org.springframework.messaging.simp.config.MessageBrokerRegistry; import org.springframework.web.socket.config.annotation.EnableWebSocketMessageBroker; import org.springframework.web.socket.config.annotation.StompEndpointRegistry; import org.springframework.web.socket.config.annotation.WebSocketMessageBrokerConfigurer; @Configuration @EnableWebSocketMessageBroker public class WebSocketConfig implements WebSocketMessageBrokerConfigurer{ @Override public void registerStompEndpoints(StompEndpointRegistry registry) { registry.addEndpoint("/chat") .setAllowedOrigins("http://localhost:8080") .withSockJS(); } @Override public void configureMessageBroker(MessageBrokerRegistry registry) { registry.enableSimpleBroker("/topic"); registry.setApplicationDestinationPrefixes("/app"); } }
Exception
chat应用
Controller

Websocket配置 我面临的问题是因为我删除了这些注释并添加了getters and setter,手动效果很好。

javascript java spring-boot websocket chat
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