Caused by: org.springframework.beans.BeanInstantiationException: Failed to instantiate [grails.boot.config.GrailsApplicationPostProcessor]: Factory method 'grailsApplicationPostProcessor' threw exception; nested exception is org.grails.core.exceptions.GrailsRuntimeException: Error instantiated artefact class [class .MessageController] of type [class org.grails.core.DefaultGrailsControllerClass]: InvocationTargetException 下面是我在build.gradle中的代码： dependencies{ //https://mvnrepository.com/artifact/org.springframework.boot/spring-boot-starter-websocket implementation group: 'org.springframework.boot', name: 'spring-boot-starter-websocket', version: '2.3.8.RELEASE' } 控制器：

import org.springframework.beans.factory.annotation.Autowired
import org.springframework.messaging.simp.SimpMessagingTemplate

class MessageController {
    static responseFormats = ['json', 'xml']

    //@Autowired is important and needed for intializing SimpleMessagingTemplate
    @Autowired
    SimpMessagingTemplate simpMessagingTemplate;

    def sendToUser(){
        println("send to user")
        simpMessagingTemplate.convertAndSend("/topic/user_abc", "hello from grails message controller")
        render status: 201
    }
}

有没有人在尝试使用SpringBootStarterWebSocket插件时出现这个错误？从互联网上尝试了一些解决方案，但仍然有相同的错误。它在macbook上运行得很好，但是一旦我将代码移到windows中，在尝试引导运行应用程序时，它就会一直出现这个错误。