聊天全是报错：

org.springframework.web.util.NestedServletException: Request processing failed; nested exception is java.lang.ClassCastException: class java.lang.String cannot be cast to class com.lucy.chat.params.chat.ChatResult (java.lang.String is in module java.base of loader 'bootstrap'; com.lucy.chat.params.chat.ChatResult is in unnamed module of loader 'app')
	at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1014) ~[spring-webmvc-5.3.20.jar:5.3.20]
	at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:909) ~[spring-webmvc-5.3.20.jar:5.3.20]
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:517) ~[jakarta.servlet-api-4.0.4.jar:4.0.4]
	at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:883) ~[spring-webmvc-5.3.20.jar:5.3.20]
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:584) ~[jakarta.servlet-api-4.0.4.jar:4.0.4]
	at io.undertow.servlet.handlers.ServletHandler.handleRequest(ServletHandler.java:74) ~[undertow-servlet-2.2.17.Final.jar:2.2.17.Final]
	at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:129) ~[undertow-servlet-2.2.17.Final.jar:2.2.17.Final]
	at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:100) ~[spring-web-5.3.20.jar:5.3.20]
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:117) ~[spring-web-5.3.20.jar:5.3.20]
	at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61) ~[undertow-servlet-2.2.17.Final.jar:2.2.17.Final]
	at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131) ~[undertow-servlet-2.2.17.Final.jar:2.2.17.Final]
	at org.springframework.web.filter.FormContentFilter.doFilterInternal(FormContentFilter.java:93) ~[spring-web-5.3.20.jar:5.3.20]
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:117) ~[spring-web-5.3.20.jar:5.3.20]
	at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61) ~[undertow-servlet-2.2.17.Final.jar:2.2.17.Final]
	at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131) ~[undertow-servlet-2.2.17.Final.jar:2.2.17.Final]
	at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:201) ~[spring-web-5.3.20.jar:5.3.20]
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:117) ~[spring-web-5.3.20.jar:5.3.20]
	at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61) ~[undertow-servlet-2.2.17.Final.jar:2.2.17.Final]
	at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131) ~[undertow-servlet-2.2.17.Final.jar:2.2.17.Final]
	at io.undertow.servlet.handlers.FilterHandler.handleRequest(FilterHandler.java:84) ~[undertow-servlet-2.2.17.Final.jar:2.2.17.Final]
	at io.undertow.servlet.handlers.security.ServletSecurityRoleHandler.handleRequest(ServletSecurityRoleHandler.java:62) ~[undertow-servlet-2.2.17.Final.jar:2.2.17.Final]
	at io.undertow.servlet.handlers.ServletChain$1.handleRequest(ServletChain.java:68) ~[undertow-servlet-2.2.17.Final.jar:2.2.17.Final]
	at io.undertow.servlet.handlers.ServletDispatchingHandler.handleRequest(ServletDispatchingHandler.java:36) ~[undertow-servlet-2.2.17.Final.jar:2.2.17.Final]
	at io.undertow.servlet.handlers.RedirectDirHandler.handleRequest(RedirectDirHandler.java:68) ~[undertow-servlet-2.2.17.Final.jar:2.2.17.Final]
	at io.undertow.servlet.handlers.security.SSLInformationAssociationHandler.handleRequest(SSLInformationAssociationHandler.java:117) ~[undertow-servlet-2.2.17.Final.jar:2.2.17.Final]
	at io.undertow.servlet.handlers.security.ServletAuthenticationCallHandler.handleRequest(ServletAuthenticationCallHandler.java:57) ~[undertow-servlet-2.2.17.Final.jar:2.2.17.Final]
	at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43) ~[undertow-core-2.2.17.Final.jar:2.2.17.Final]
	at io.undertow.security.handlers.AbstractConfidentialityHandler.handleRequest(AbstractConfidentialityHandler.java:46) ~[undertow-core-2.2.17.Final.jar:2.2.17.Final]
	at io.undertow.servlet.handlers.security.ServletConfidentialityConstraintHandler.handleRequest(ServletConfidentialityConstraintHandler.java:64) ~[undertow-servlet-2.2.17.Final.jar:2.2.17.Final]
	at io.undertow.security.handlers.AuthenticationMechanismsHandler.handleRequest(AuthenticationMechanismsHandler.java:60) ~[undertow-core-2.2.17.Final.jar:2.2.17.Final]
	at io.undertow.servlet.handlers.security.CachedAuthenticatedSessionHandler.handleRequest(CachedAuthenticatedSessionHandler.java:77) ~[undertow-servlet-2.2.17.Final.jar:2.2.17.Final]
	at io.undertow.security.handlers.AbstractSecurityContextAssociationHandler.handleRequest(AbstractSecurityContextAssociationHandler.java:43) ~[undertow-core-2.2.17.Final.jar:2.2.17.Final]
	at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43) ~[undertow-core-2.2.17.Final.jar:2.2.17.Final]
	at io.undertow.servlet.handlers.SendErrorPageHandler.handleRequest(SendErrorPageHandler.java:52) ~[undertow-servlet-2.2.17.Final.jar:2.2.17.Final]
	at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43) ~[undertow-core-2.2.17.Final.jar:2.2.17.Final]
	at io.undertow.servlet.handlers.ServletInitialHandler.handleFirstRequest(ServletInitialHandler.java:275) ~[undertow-servlet-2.2.17.Final.jar:2.2.17.Final]
	at io.undertow.servlet.handlers.ServletInitialHandler.access$100(ServletInitialHandler.java:79) ~[undertow-servlet-2.2.17.Final.jar:2.2.17.Final]
	at io.undertow.servlet.handlers.ServletInitialHandler$2.call(ServletInitialHandler.java:134) ~[undertow-servlet-2.2.17.Final.jar:2.2.17.Final]
	at io.undertow.servlet.handlers.ServletInitialHandler$2.call(ServletInitialHandler.java:131) ~[undertow-servlet-2.2.17.Final.jar:2.2.17.Final]
	at io.undertow.servlet.core.ServletRequestContextThreadSetupAction$1.call(ServletRequestContextThreadSetupAction.java:48) ~[undertow-servlet-2.2.17.Final.jar:2.2.17.Final]
	at io.undertow.servlet.core.ContextClassLoaderSetupAction$1.call(ContextClassLoaderSetupAction.java:43) ~[undertow-servlet-2.2.17.Final.jar:2.2.17.Final]
	at io.undertow.servlet.handlers.ServletInitialHandler.dispatchRequest(ServletInitialHandler.java:255) ~[undertow-servlet-2.2.17.Final.jar:2.2.17.Final]
	at io.undertow.servlet.handlers.ServletInitialHandler.access$000(ServletInitialHandler.java:79) ~[undertow-servlet-2.2.17.Final.jar:2.2.17.Final]
	at io.undertow.servlet.handlers.ServletInitialHandler$1.handleRequest(ServletInitialHandler.java:100) ~[undertow-servlet-2.2.17.Final.jar:2.2.17.Final]
	at io.undertow.server.Connectors.executeRootHandler(Connectors.java:387) ~[undertow-core-2.2.17.Final.jar:2.2.17.Final]
	at io.undertow.server.HttpServerExchange$1.run(HttpServerExchange.java:852) ~[undertow-core-2.2.17.Final.jar:2.2.17.Final]
	at org.jboss.threads.ContextClassLoaderSavingRunnable.run(ContextClassLoaderSavingRunnable.java:35) ~[jboss-threads-3.1.0.Final.jar:3.1.0.Final]
	at org.jboss.threads.EnhancedQueueExecutor.safeRun(EnhancedQueueExecutor.java:2019) ~[jboss-threads-3.1.0.Final.jar:3.1.0.Final]
	at org.jboss.threads.EnhancedQueueExecutor$ThreadBody.doRunTask(EnhancedQueueExecutor.java:1558) ~[jboss-threads-3.1.0.Final.jar:3.1.0.Final]
	at org.jboss.threads.EnhancedQueueExecutor$ThreadBody.run(EnhancedQueueExecutor.java:1449) ~[jboss-threads-3.1.0.Final.jar:3.1.0.Final]
	at org.xnio.XnioWorker$WorkerThreadFactory$1$1.run(XnioWorker.java:1280) ~[xnio-api-3.8.6.Final.jar:3.8.6.Final]
	at java.base/java.lang.Thread.run(Thread.java:829) ~[na:na]
Caused by: java.lang.ClassCastException: class java.lang.String cannot be cast to class com.lucy.chat.params.chat.ChatResult (java.lang.String is in module java.base of loader 'bootstrap'; com.lucy.chat.params.chat.ChatResult is in unnamed module of loader 'app')
	at com.lucy.chat.service.impl.ChatServiceImpl.doChat(ChatServiceImpl.java:88) ~[classes/:na]
	at com.lucy.chat.controller.ChatController.doChat(ChatController.java:57) ~[classes/:na]
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:na]
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:na]
	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:na]
	at java.base/java.lang.reflect.Method.invoke(Method.java:566) ~[na:na]
	at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:205) ~[spring-web-5.3.20.jar:5.3.20]
	at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:150) ~[spring-web-5.3.20.jar:5.3.20]
	at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:117) ~[spring-webmvc-5.3.20.jar:5.3.20]
	at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:895) ~[spring-webmvc-5.3.20.jar:5.3.20]
	at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:808) ~[spring-webmvc-5.3.20.jar:5.3.20]
	at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:87) ~[spring-webmvc-5.3.20.jar:5.3.20]
	at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1067) ~[spring-webmvc-5.3.20.jar:5.3.20]
	at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:963) ~[spring-webmvc-5.3.20.jar:5.3.20]
	at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1006) ~[spring-webmvc-5.3.20.jar:5.3.20]
	... 51 common frames omitted

Lboot/lucy-chat

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Lboot/lucy-chat .gitee-modal { width: 500px !important; }

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