Java Intellij Idea Spring引导开发工具在创建bean时出现liveloader扩展错误

我正在尝试使我的Java应用程序在进行更改后自动更新。当我更改html或css文件时，自动更新内容工作正常，但当我更改java类时，我的项目会自动重建，但会抛出一个错误。当我在ide中单击停止并重新运行应用程序时，一切都正常

我正在使用intellij Idea，我在这里更改了2个设置

在注册表中的shift+cltr+a菜单中，我启用了运行时允许编译

内置设置我启用了自动生成

我将非常感谢每一个帮助

我得到的错误

Error starting ApplicationContext. To display the conditions report re-run your application with 'debug' enabled.
2018-07-09 01:09:37.490 ERROR 212 --- [  restartedMain] o.s.boot.SpringApplication               : Application run failed

org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'org.springframework.boot.autoconfigure.web.servlet.WebMvcAutoConfiguration$EnableWebMvcConfiguration': Unsatisfied dependency expressed through method 'setConfigurers' parameter 0; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'org.springframework.boot.autoconfigure.web.servlet.WebMvcAutoConfiguration$WebMvcAutoConfigurationAdapter': Unexpected exception during bean creation; nested exception is org.springframework.aop.framework.AopConfigException: Could not generate CGLIB subclass of class org.springframework.boot.autoconfigure.http.HttpMessageConverters: Common causes of this problem include using a final class or a non-visible class; nested exception is org.springframework.cglib.core.CodeGenerationException: java.lang.LinkageError-->loader (instance of jdk/internal/loader/ClassLoaders$AppClassLoader): attempted duplicate class definition for name: "org/springframework/boot/autoconfigure/http/HttpMessageConverters$$EnhancerBySpringCGLIB$$1d90bff9"
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredMethodElement.inject(AutowiredAnnotationBeanPostProcessor.java:673) ~[spring-beans-5.1.0.BUILD-20180708.121145-240.jar:5.1.0.BUILD-SNAPSHOT]
    at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:91) ~[spring-beans-5.1.0.BUILD-20180708.121145-240.jar:5.1.0.BUILD-SNAPSHOT]
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessProperties(AutowiredAnnotationBeanPostProcessor.java:371) ~[spring-beans-5.1.0.BUILD-20180708.121145-240.jar:5.1.0.BUILD-SNAPSHOT]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1352) ~[spring-beans-5.1.0.BUILD-20180708.121145-240.jar:5.1.0.BUILD-SNAPSHOT]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:574) ~[spring-beans-5.1.0.BUILD-20180708.121145-240.jar:5.1.0.BUILD-SNAPSHOT]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:497) ~[spring-beans-5.1.0.BUILD-20180708.121145-240.jar:5.1.0.BUILD-SNAPSHOT]
    at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:317) ~[spring-beans-5.1.0.BUILD-20180708.121145-240.jar:5.1.0.BUILD-SNAPSHOT]
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222) ~[spring-beans-5.1.0.BUILD-20180708.121145-240.jar:5.1.0.BUILD-SNAPSHOT]
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:315) ~[spring-beans-5.1.0.BUILD-20180708.121145-240.jar:5.1.0.BUILD-SNAPSHOT]
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:199) ~[spring-beans-5.1.0.BUILD-20180708.121145-240.jar:5.1.0.BUILD-SNAPSHOT]
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:759) ~[spring-beans-5.1.0.BUILD-20180708.121145-240.jar:5.1.0.BUILD-SNAPSHOT]
    at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:869) ~[spring-context-5.1.0.BUILD-20180708.121145-240.jar:5.1.0.BUILD-SNAPSHOT]
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:550) ~[spring-context-5.1.0.BUILD-20180708.121145-240.jar:5.1.0.BUILD-SNAPSHOT]
    at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:140) ~[spring-boot-2.1.0.BUILD-20180706.150128-217.jar:2.1.0.BUILD-SNAPSHOT]
    at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:762) [spring-boot-2.1.0.BUILD-20180706.150128-217.jar:2.1.0.BUILD-SNAPSHOT]
    at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:398) [spring-boot-2.1.0.BUILD-20180706.150128-217.jar:2.1.0.BUILD-SNAPSHOT]
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:330) [spring-boot-2.1.0.BUILD-20180706.150128-217.jar:2.1.0.BUILD-SNAPSHOT]
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:1234) [spring-boot-2.1.0.BUILD-20180706.150128-217.jar:2.1.0.BUILD-SNAPSHOT]
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:1222) [spring-boot-2.1.0.BUILD-20180706.150128-217.jar:2.1.0.BUILD-SNAPSHOT]
    at com.zerg.myWebsite.MyWebsiteApplication.main(MyWebsiteApplication.java:12) [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:564) ~[na:na]
    at org.springframework.boot.devtools.restart.RestartLauncher.run(RestartLauncher.java:49) [spring-boot-devtools-2.1.0.BUILD-20180706.150038-217.jar:2.1.0.BUILD-SNAPSHOT]
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'org.springframework.boot.autoconfigure.web.servlet.WebMvcAutoConfiguration$WebMvcAutoConfigurationAdapter': Unexpected exception during bean creation; nested exception is org.springframework.aop.framework.AopConfigException: Could not generate CGLIB subclass of class org.springframework.boot.autoconfigure.http.HttpMessageConverters: Common causes of this problem include using a final class or a non-visible class; nested exception is org.springframework.cglib.core.CodeGenerationException: java.lang.LinkageError-->loader (instance of jdk/internal/loader/ClassLoaders$AppClassLoader): attempted duplicate class definition for name: "org/springframework/boot/autoconfigure/http/HttpMessageConverters$$EnhancerBySpringCGLIB$$1d90bff9"
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:510) ~[spring-beans-5.1.0.BUILD-20180708.121145-240.jar:5.1.0.BUILD-SNAPSHOT]
    at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:317) ~[spring-beans-5.1.0.BUILD-20180708.121145-240.jar:5.1.0.BUILD-SNAPSHOT]
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222) ~[spring-beans-5.1.0.BUILD-20180708.121145-240.jar:5.1.0.BUILD-SNAPSHOT]
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:315) ~[spring-beans-5.1.0.BUILD-20180708.121145-240.jar:5.1.0.BUILD-SNAPSHOT]
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:199) ~[spring-beans-5.1.0.BUILD-20180708.121145-240.jar:5.1.0.BUILD-SNAPSHOT]
    at org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:252) ~[spring-beans-5.1.0.BUILD-20180708.121145-240.jar:5.1.0.BUILD-SNAPSHOT]
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.addCandidateEntry(DefaultListableBeanFactory.java:1320) ~[spring-beans-5.1.0.BUILD-20180708.121145-240.jar:5.1.0.BUILD-SNAPSHOT]
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.findAutowireCandidates(DefaultListableBeanFactory.java:1286) ~[spring-beans-5.1.0.BUILD-20180708.121145-240.jar:5.1.0.BUILD-SNAPSHOT]
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveMultipleBeans(DefaultListableBeanFactory.java:1188) ~[spring-beans-5.1.0.BUILD-20180708.121145-240.jar:5.1.0.BUILD-SNAPSHOT]
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1091) ~[spring-beans-5.1.0.BUILD-20180708.121145-240.jar:5.1.0.BUILD-SNAPSHOT]
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1060) ~[spring-beans-5.1.0.BUILD-20180708.121145-240.jar:5.1.0.BUILD-SNAPSHOT]
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredMethodElement.inject(AutowiredAnnotationBeanPostProcessor.java:665) ~[spring-beans-5.1.0.BUILD-20180708.121145-240.jar:5.1.0.BUILD-SNAPSHOT]
    ... 24 common frames omitted
Caused by: org.springframework.aop.framework.AopConfigException: Could not generate CGLIB subclass of class org.springframework.boot.autoconfigure.http.HttpMessageConverters: Common causes of this problem include using a final class or a non-visible class; nested exception is org.springframework.cglib.core.CodeGenerationException: java.lang.LinkageError-->loader (instance of jdk/internal/loader/ClassLoaders$AppClassLoader): attempted duplicate class definition for name: "org/springframework/boot/autoconfigure/http/HttpMessageConverters$$EnhancerBySpringCGLIB$$1d90bff9"
    at org.springframework.aop.framework.CglibAopProxy.getProxy(CglibAopProxy.java:208) ~[spring-aop-5.1.0.BUILD-20180708.121145-240.jar:5.1.0.BUILD-SNAPSHOT]
    at org.springframework.aop.framework.ProxyFactory.getProxy(ProxyFactory.java:110) ~[spring-aop-5.1.0.BUILD-20180708.121145-240.jar:5.1.0.BUILD-SNAPSHOT]
    at org.springframework.context.annotation.ContextAnnotationAutowireCandidateResolver.buildLazyResolutionProxy(ContextAnnotationAutowireCandidateResolver.java:117) ~[spring-context-5.1.0.BUILD-20180708.121145-240.jar:5.1.0.BUILD-SNAPSHOT]
    at org.springframework.context.annotation.ContextAnnotationAutowireCandidateResolver.getLazyResolutionProxyIfNecessary(ContextAnnotationAutowireCandidateResolver.java:52) ~[spring-context-5.1.0.BUILD-20180708.121145-240.jar:5.1.0.BUILD-SNAPSHOT]
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1057) ~[spring-beans-5.1.0.BUILD-20180708.121145-240.jar:5.1.0.BUILD-SNAPSHOT]
    at org.springframework.beans.factory.support.ConstructorResolver.resolveAutowiredArgument(ConstructorResolver.java:818) ~[spring-beans-5.1.0.BUILD-20180708.121145-240.jar:5.1.0.BUILD-SNAPSHOT]
    at org.springframework.beans.factory.support.ConstructorResolver.createArgumentArray(ConstructorResolver.java:724) ~[spring-beans-5.1.0.BUILD-20180708.121145-240.jar:5.1.0.BUILD-SNAPSHOT]
    at org.springframework.beans.factory.support.ConstructorResolver.autowireConstructor(ConstructorResolver.java:197) ~[spring-beans-5.1.0.BUILD-20180708.121145-240.jar:5.1.0.BUILD-SNAPSHOT]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.autowireConstructor(AbstractAutowireCapableBeanFactory.java:1278) ~[spring-beans-5.1.0.BUILD-20180708.121145-240.jar:5.1.0.BUILD-SNAPSHOT]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1135) ~[spring-beans-5.1.0.BUILD-20180708.121145-240.jar:5.1.0.BUILD-SNAPSHOT]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:537) ~[spring-beans-5.1.0.BUILD-20180708.121145-240.jar:5.1.0.BUILD-SNAPSHOT]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:497) ~[spring-beans-5.1.0.BUILD-20180708.121145-240.jar:5.1.0.BUILD-SNAPSHOT]
    ... 35 common frames omitted
Caused by: org.springframework.cglib.core.CodeGenerationException: java.lang.LinkageError-->loader (instance of jdk/internal/loader/ClassLoaders$AppClassLoader): attempted duplicate class definition for name: "org/springframework/boot/autoconfigure/http/HttpMessageConverters$$EnhancerBySpringCGLIB$$1d90bff9"
    at org.springframework.cglib.core.ReflectUtils.defineClass(ReflectUtils.java:502) ~[spring-core-5.1.0.BUILD-20180708.121145-240.jar:5.1.0.BUILD-SNAPSHOT]
    at org.springframework.cglib.core.AbstractClassGenerator.generate(AbstractClassGenerator.java:359) ~[spring-core-5.1.0.BUILD-20180708.121145-240.jar:5.1.0.BUILD-SNAPSHOT]
    at org.springframework.cglib.proxy.Enhancer.generate(Enhancer.java:582) ~[spring-core-5.1.0.BUILD-20180708.121145-240.jar:5.1.0.BUILD-SNAPSHOT]
    at org.springframework.cglib.core.AbstractClassGenerator$ClassLoaderData$3.apply(AbstractClassGenerator.java:106) ~[spring-core-5.1.0.BUILD-20180708.121145-240.jar:5.1.0.BUILD-SNAPSHOT]
    at org.springframework.cglib.core.AbstractClassGenerator$ClassLoaderData$3.apply(AbstractClassGenerator.java:104) ~[spring-core-5.1.0.BUILD-20180708.121145-240.jar:5.1.0.BUILD-SNAPSHOT]
    at org.springframework.cglib.core.internal.LoadingCache$2.call(LoadingCache.java:54) ~[spring-core-5.1.0.BUILD-20180708.121145-240.jar:5.1.0.BUILD-SNAPSHOT]
    at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) ~[na:na]
    at org.springframework.cglib.core.internal.LoadingCache.createEntry(LoadingCache.java:61) ~[spring-core-5.1.0.BUILD-20180708.121145-240.jar:5.1.0.BUILD-SNAPSHOT]
    at org.springframework.cglib.core.internal.LoadingCache.get(LoadingCache.java:34) ~[spring-core-5.1.0.BUILD-20180708.121145-240.jar:5.1.0.BUILD-SNAPSHOT]
    at org.springframework.cglib.core.AbstractClassGenerator$ClassLoaderData.get(AbstractClassGenerator.java:130) ~[spring-core-5.1.0.BUILD-20180708.121145-240.jar:5.1.0.BUILD-SNAPSHOT]
    at org.springframework.cglib.core.AbstractClassGenerator.create(AbstractClassGenerator.java:315) ~[spring-core-5.1.0.BUILD-20180708.121145-240.jar:5.1.0.BUILD-SNAPSHOT]
    at org.springframework.cglib.proxy.Enhancer.createHelper(Enhancer.java:569) ~[spring-core-5.1.0.BUILD-20180708.121145-240.jar:5.1.0.BUILD-SNAPSHOT]
    at org.springframework.cglib.proxy.Enhancer.createClass(Enhancer.java:416) ~[spring-core-5.1.0.BUILD-20180708.121145-240.jar:5.1.0.BUILD-SNAPSHOT]
    at org.springframework.aop.framework.ObjenesisCglibAopProxy.createProxyClassAndInstance(ObjenesisCglibAopProxy.java:58) ~[spring-aop-5.1.0.BUILD-20180708.121145-240.jar:5.1.0.BUILD-SNAPSHOT]
    at org.springframework.aop.framework.CglibAopProxy.getProxy(CglibAopProxy.java:205) ~[spring-aop-5.1.0.BUILD-20180708.121145-240.jar:5.1.0.BUILD-SNAPSHOT]
    ... 46 common frames omitted
Caused by: java.lang.LinkageError: loader (instance of jdk/internal/loader/ClassLoaders$AppClassLoader): attempted duplicate class definition for name: "org/springframework/boot/autoconfigure/http/HttpMessageConverters$$EnhancerBySpringCGLIB$$1d90bff9"
    at java.base/java.lang.ClassLoader.defineClass1(Native Method) ~[na:na]
    at java.base/java.lang.System$2.defineClass(System.java:2131) ~[na:na]
    at java.base/java.lang.invoke.MethodHandles$Lookup.defineClass(MethodHandles.java:964) ~[na:na]
    at java.base/jdk.internal.reflect.GeneratedMethodAccessor31.invoke(Unknown Source) ~[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:564) ~[na:na]
    at org.springframework.cglib.core.ReflectUtils.defineClass(ReflectUtils.java:498) ~[spring-core-5.1.0.BUILD-20180708.121145-240.jar:5.1.0.BUILD-SNAPSHOT]
    ... 60 common frames omitted

我的pom.xml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 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>

    <groupId>com.zerg</groupId>
    <artifactId>myWebsite</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <packaging>jar</packaging>

    <name>myWebsite</name>
    <description>My website project.</description>

    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.1.0.BUILD-SNAPSHOT</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>

    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
        <java.version>10</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-thymeleaf</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.session</groupId>
            <artifactId>spring-session-core</artifactId>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-devtools</artifactId>
            <scope>runtime</scope>
        </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>
    </dependencies>

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

    <repositories>
        <repository>
            <id>spring-snapshots</id>
            <name>Spring Snapshots</name>
            <url>https://repo.spring.io/snapshot</url>
            <snapshots>
                <enabled>true</enabled>
            </snapshots>
        </repository>
        <repository>
            <id>spring-milestones</id>
            <name>Spring Milestones</name>
            <url>https://repo.spring.io/milestone</url>
            <snapshots>
                <enabled>false</enabled>
            </snapshots>
        </repository>
    </repositories>

    <pluginRepositories>
        <pluginRepository>
            <id>spring-snapshots</id>
            <name>Spring Snapshots</name>
            <url>https://repo.spring.io/snapshot</url>
            <snapshots>
                <enabled>true</enabled>
            </snapshots>
        </pluginRepository>
        <pluginRepository>
            <id>spring-milestones</id>
            <name>Spring Milestones</name>
            <url>https://repo.spring.io/milestone</url>
            <snapshots>
                <enabled>false</enabled>
            </snapshots>
        </pluginRepository>
    </pluginRepositories>


</project>

我的SpringBoot应用程序文件

package com.zerg.myWebsite;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;


@SpringBootApplication
public class MyWebsiteApplication {

    public static void main(String[] args) {
        SpringApplication.run(MyWebsiteApplication.class, args);
    }
}

我正在测试要更改的控制器类

package com.zerg.myWebsite.controller;

import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestParam;


@Controller
public class HomeController {

    @GetMapping("/home")
    public String home(@RequestParam(name = "DevTools", required = false, defaultValue = "Testing!") String name,
                       Model model) {
        model.addAttribute("name", name);
        String test = "test liveloader";
        model.addAttribute("getString", test);
        return "home.html";
    }

}

我的html文件

<!DOCTYPE HTML>
<html xmlns:th="http://www.thymeleaf.org">
<head>
    <title>Getting Started: Serving Web Content</title>
    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
</head>
<body>
<h1>Testing Spring Devtools!</h1>
<p th:text="'SpringFramework, ' + ${name} + '!'"></p>
<p th:text="'SpringFramework, ' + ${getString} + '!'"></p>
</body>

</html>

---

当我在SpringBootApplication类中更改某些内容并保存更改时，它会自动生成，一切正常。我的html页面在chrome中显示，但当我更改其他java类时，它会给出上面显示的错误。

Spring中可能存在的错误：我更改为SpringBoot 2.0.3的旧版本，现在当我更改java类时，它正在生成自动无错误，chrome中的“我的页面”正在刷新，但显示错误：白标签错误页面此应用程序没有/error的显式映射，因此您将此视为一种回退。(404).

<!DOCTYPE HTML>
<html xmlns:th="http://www.thymeleaf.org">
<head>
    <title>Getting Started: Serving Web Content</title>
    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
</head>
<body>
<h1>Testing Spring Devtools!</h1>
<p th:text="'SpringFramework, ' + ${name} + '!'"></p>
<p th:text="'SpringFramework, ' + ${getString} + '!'"></p>
</body>

</html>

Whitelabel Error Page
This application has no explicit mapping for /error, so you are seeing this as a fallback.

Mon Jul 09 15:29:48 CEST 2018
There was an unexpected error (type=Not Found, status=404).
No message available