类路径资源[org/springframework/boot/autoconfigure/web/ServerPropertiesAutoConfiguration.class]因为不存在所以打不开答案

【问题标题】：class path resource [org/springframework/boot/autoconfigure/web/ServerPropertiesAutoConfiguration.class] cannot be opened because it does not exist类路径资源[org/springframework/boot/autoconfigure/web/ServerPropertiesAutoConfiguration.class]因为不存在所以打不开
【发布时间】：2019-07-31 11:12:27
【问题描述】：

首先，我使用的是 spring-boot 1.5.x 版本，我的应用程序运行良好。我升级到 spring-boot 2.1.6 并在 spring-boot security.Here is my logcat

org.springframework.beans.factory.BeanDefinitionStoreException: Failed to process import candidates for configuration class [com.technohomes.user.UserApplication]; nested exception is java.io.FileNotFoundException: class path resource [org/springframework/boot/autoconfigure/web/ServerPropertiesAutoConfiguration.class] cannot be opened because it does not exist
at org.springframework.context.annotation.ConfigurationClassParser.processImports(ConfigurationClassParser.java:596) ~[spring-context-5.1.8.RELEASE.jar:5.1.8.RELEASE]
at org.springframework.context.annotation.ConfigurationClassParser.access$900(ConfigurationClassParser.java:108) ~[spring-context-5.1.8.RELEASE.jar:5.1.8.RELEASE]
at org.springframework.context.annotation.ConfigurationClassParser$DeferredImportSelectorGroupingHandler.lambda$processGroupImports$1(ConfigurationClassParser.java:805) ~[spring-context-5.1.8.RELEASE.jar:5.1.8.RELEASE]
at java.util.ArrayList.forEach(ArrayList.java:1257) ~[na:1.8.0_212]
at org.springframework.context.annotation.ConfigurationClassParser$DeferredImportSelectorGroupingHandler.processGroupImports(ConfigurationClassParser.java:801) ~[spring-context-5.1.8.RELEASE.jar:5.1.8.RELEASE]
at org.springframework.context.annotation.ConfigurationClassParser$DeferredImportSelectorHandler.process(ConfigurationClassParser.java:771) ~[spring-context-5.1.8.RELEASE.jar:5.1.8.RELEASE]
at org.springframework.context.annotation.ConfigurationClassParser.parse(ConfigurationClassParser.java:185) ~[spring-context-5.1.8.RELEASE.jar:5.1.8.RELEASE]
at org.springframework.context.annotation.ConfigurationClassPostProcessor.processConfigBeanDefinitions(ConfigurationClassPostProcessor.java:315) ~[spring-context-5.1.8.RELEASE.jar:5.1.8.RELEASE]
at org.springframework.context.annotation.ConfigurationClassPostProcessor.postProcessBeanDefinitionRegistry(ConfigurationClassPostProcessor.java:232) ~[spring-context-5.1.8.RELEASE.jar:5.1.8.RELEASE]
at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanDefinitionRegistryPostProcessors(PostProcessorRegistrationDelegate.java:275) ~[spring-context-5.1.8.RELEASE.jar:5.1.8.RELEASE]
at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanFactoryPostProcessors(PostProcessorRegistrationDelegate.java:95) ~[spring-context-5.1.8.RELEASE.jar:5.1.8.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.invokeBeanFactoryPostProcessors(AbstractApplicationContext.java:705) ~[spring-context-5.1.8.RELEASE.jar:5.1.8.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:531) ~[spring-context-5.1.8.RELEASE.jar:5.1.8.RELEASE]
at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:140) ~[spring-boot-2.1.6.RELEASE.jar:2.1.6.RELEASE]
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:742) [spring-boot-2.1.6.RELEASE.jar:2.1.6.RELEASE]
at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:389) [spring-boot-2.1.6.RELEASE.jar:2.1.6.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:311) [spring-boot-2.1.6.RELEASE.jar:2.1.6.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1213) [spring-boot-2.1.6.RELEASE.jar:2.1.6.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1202) [spring-boot-2.1.6.RELEASE.jar:2.1.6.RELEASE]
at com.technohomes.user.UserApplication.main(UserApplication.java:19) [classes/:na]
Caused by: java.io.FileNotFoundException: class path resource [org/springframework/boot/autoconfigure/web/ServerPropertiesAutoConfiguration.class] cannot be opened because it does not exist

这是我改变的我将 gradle 版本升级到 5.5.1，将 spring-boot 版本升级到 2.1.6，并将所有依赖项也更新为最新版本。

一些资源指出这个类在 spring-boot 2 中不可用，但没有提供替代解决方案

这是我的build.gradleh

apply plugin: 'java'
apply plugin: 'org.springframework.boot'
apply plugin: 'application'
apply plugin: 'docker'
buildscript {
project.ext {
    springBootVersion = '2.0.4.RELEASE'
    jarName = 'basic-user-webservice'
    versionName = '0.0.1'
    gradleDockerVersion = '1.2'
    swagger2version = '2.9.2'
}
repositories {
    jcenter()
    mavenCentral()

}

dependencies {
    classpath "org.springframework.boot:spring-boot-gradle-    plugin:${project.springBootVersion}"
    classpath "se.transmode.gradle:gradle-    docker:${project.gradleDockerVersion}"
}
}

task createWrapper(type: Wrapper) {
gradleVersion = '5.1.1'
}
group = 'technohomes'
mainClassName = 'com.technohomes.user.UserApplication'
sourceCompatibility = 1.8
targetCompatibility = 1.8

repositories {
mavenCentral()
jcenter()
}

ext {
springCloudVersion = 'Greenwich.SR2'
}


dependencies {

compile group: 'org.springframework.security', name: 'spring-security-web', version: '5.1.5.RELEASE'
compile group: 'org.springframework.security', name: 'spring-security-config', version: '5.1.5.RELEASE'
compile group: 'org.thymeleaf.extras', name: 'thymeleaf-extras-springsecurity5', version: '3.0.4.RELEASE'


compile group: 'org.springframework.boot', name: 'spring-boot-autoconfigure', version: '2.0.4.RELEASE'

compile group: 'org.springframework.boot', name: 'spring-boot-starter-parent', version: '2.0.4.RELEASE'

compile group: 'org.springframework.boot', name: 'spring-boot-starter-web', version: '2.0.1.RELEASE'
compile group: 'org.springframework.cloud', name: 'spring-cloud-starter-eureka', version: '1.4.7.RELEASE'


compile 'org.springframework.security.oauth.boot:spring-security-oauth2-autoconfigure:2.0.0.RELEASE'

compile group: 'org.springframework.boot', name: 'spring-boot-starter-actuator', version: '2.0.4.RELEASE'
compile group: 'org.springframework.cloud', name: 'spring-cloud-starter-config', version: '2.1.3.RELEASE'
compile group: 'org.springframework.boot', name: 'spring-boot-starter-security', version: '2.0.4.RELEASE'
compile group: 'org.springframework.security', name: 'spring-security-jwt', version: '1.0.10.RELEASE'


   compile group: 'org.springframework.cloud', name: 'spring-cloud-starter-zipkin', version: '2.1.2.RELEASE'

// Swagger for API testing
compile("io.springfox:springfox-swagger2:${swagger2version}")
compile("io.springfox:springfox-swagger-ui:${swagger2version}")
testCompile("org.springframework.security:spring-security-test")

}

jar {
baseName = "${project.jarName}"
version = "${project.versionName}"
}
task buildDocker(type: Docker, dependsOn: build) {
push = false
applicationName = jar.baseName
tagVersion = jar.version
dockerfile = file('src/main/docker/Dockerfile')
doFirst {
    // Copy the built fat jar to the Docker plugin staging directory
    copy {
        from jar
        into stageDir
    }
    // Copy the run.sh file to the Docker plugin staging directory
    copy {
        from "${project.buildDir}/resources/main/run.sh"
        into stageDir
    }
}
}

run {
jvmArgs = ['-Xdebug', '- 
Xrunjdwp:server=y,transport=dt_socket,address=4200,suspend=n', '- 
Dspring.profiles.active=default']
}

主类

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.netflix.eureka.EnableEurekaClient;
import org.springframework.security.oauth2.config.annotation.web.configuration.EnableOAuth2Client;
import         org.springframework.security.oauth2.config.annotation.web.configuration.EnableResourceServer;
import springfox.documentation.swagger2.annotations.EnableSwagger2;

@SpringBootApplication
@EnableEurekaClient
@EnableResourceServer
@EnableSwagger2
@EnableOAuth2Client
public class UserApplication {

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

更新 1 更新Eureka client 后抛出以下错误

java.lang.ClassCastException: java.lang.NoClassDefFoundError cannot be cast to [Ljava.lang.Object;
at org.springframework.boot.context.properties.EnableConfigurationPropertiesImportSelector$ConfigurationPropertiesBeanRegistrar.lambda$collectClasses$1(EnableConfigurationPropertiesImportSelector.java:77) ~[spring-boot-2.1.6.RELEASE.jar:2.1.6.RELEASE]
at java.util.stream.ReferencePipeline$7$1.accept(ReferencePipeline.java:267) ~[na:1.8.0_212]
at java.util.LinkedList$LLSpliterator.forEachRemaining(LinkedList.java:1235) ~[na:1.8.0_212]
at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:482) ~[na:1.8.0_212]
at java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:472) ~[na:1.8.0_212]
at java.util.stream.ReduceOps$ReduceOp.evaluateSequential(ReduceOps.java:708) ~[na:1.8.0_212]
at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) ~[na:1.8.0_212]
at java.util.stream.ReferencePipeline.collect(ReferencePipeline.java:499) ~[na:1.8.0_212]
at org.springframework.boot.context.properties.EnableConfigurationPropertiesImportSelector$ConfigurationPropertiesBeanRegistrar.collectClasses(EnableConfigurationPropertiesImportSelector.java:78) ~[spring-boot-2.1.6.RELEASE.jar:2.1.6.RELEASE]
at org.springframework.boot.context.properties.EnableConfigurationPropertiesImportSelector$ConfigurationPropertiesBeanRegistrar.getTypes(EnableConfigurationPropertiesImportSelector.java:73) ~[spring-boot-2.1.6.RELEASE.jar:2.1.6.RELEASE]
at org.springframework.boot.context.properties.EnableConfigurationPropertiesImportSelector$ConfigurationPropertiesBeanRegistrar.registerBeanDefinitions(EnableConfigurationPropertiesImportSelector.java:67) ~[spring-boot-2.1.6.RELEASE.jar:2.1.6.RELEASE]
at org.springframework.context.annotation.ConfigurationClassBeanDefinitionReader.lambda$loadBeanDefinitionsFromRegistrars$1(ConfigurationClassBeanDefinitionReader.java:364) ~[spring-context-5.1.8.RELEASE.jar:5.1.8.RELEASE]
at java.util.LinkedHashMap.forEach(LinkedHashMap.java:684) ~[na:1.8.0_212]
at org.springframework.context.annotation.ConfigurationClassBeanDefinitionReader.loadBeanDefinitionsFromRegistrars(ConfigurationClassBeanDefinitionReader.java:363) ~[spring-context-5.1.8.RELEASE.jar:5.1.8.RELEASE]
at org.springframework.context.annotation.ConfigurationClassBeanDefinitionReader.loadBeanDefinitionsForConfigurationClass(ConfigurationClassBeanDefinitionReader.java:145) ~[spring-context-5.1.8.RELEASE.jar:5.1.8.RELEASE]
at org.springframework.context.annotation.ConfigurationClassBeanDefinitionReader.loadBeanDefinitions(ConfigurationClassBeanDefinitionReader.java:117) ~[spring-context-5.1.8.RELEASE.jar:5.1.8.RELEASE]
at org.springframework.context.annotation.ConfigurationClassPostProcessor.processConfigBeanDefinitions(ConfigurationClassPostProcessor.java:327) ~[spring-context-5.1.8.RELEASE.jar:5.1.8.RELEASE]
at org.springframework.context.annotation.ConfigurationClassPostProcessor.postProcessBeanDefinitionRegistry(ConfigurationClassPostProcessor.java:232) ~[spring-context-5.1.8.RELEASE.jar:5.1.8.RELEASE]
at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanDefinitionRegistryPostProcessors(PostProcessorRegistrationDelegate.java:275) ~[spring-context-5.1.8.RELEASE.jar:5.1.8.RELEASE]
at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanFactoryPostProcessors(PostProcessorRegistrationDelegate.java:95) ~[spring-context-5.1.8.RELEASE.jar:5.1.8.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.invokeBeanFactoryPostProcessors(AbstractApplicationContext.java:705) ~[spring-context-5.1.8.RELEASE.jar:5.1.8.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:531) ~[spring-context-5.1.8.RELEASE.jar:5.1.8.RELEASE]
at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:140) ~[spring-boot-2.1.6.RELEASE.jar:2.1.6.RELEASE]
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:742) [spring-boot-2.1.6.RELEASE.jar:2.1.6.RELEASE]
at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:389) [spring-boot-2.1.6.RELEASE.jar:2.1.6.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:311) [spring-boot-2.1.6.RELEASE.jar:2.1.6.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1213) [spring-boot-2.1.6.RELEASE.jar:2.1.6.RELEASE]
at

org.springframework.boot.SpringApplication.run(SpringApplication.java:1202) [spring-boot-2.1.6.RELEASE.jar:2.1.6.RELEASE] 在 com.technohomes.user.UserApplication.main(UserApplication.java:19) [classes/:na]

请帮我解决这个问题。谢谢

【问题讨论】：

请在此处复制 build.gradle，因为此问题可能会在将来对其他人有所帮助，并且该资源可能不可用。除了升级 gradle 版本之外，您是否对代码进行了任何其他更改？
我无法格式化 build.gradle 这就是为什么我把它放在那里。
我将 gradle 版本升级到 5.5.1，spring-boot 版本升级到 2.1.6，并将所有依赖项也更新到最新版本。一些资源指出，这个类在 spring-boot 2 中不可用，但没有提供替代解决方案
@jpganz18 我也添加了 gradle 和更新的问题。请看一下
从依赖项中移除 version 标签。您不需要的 spring-security 依赖项；不需要（这些是 spring-boot-starter-security 的一部分）。对于 Spring Cloud，请导入 bom，然后删除版本，以便您拥有兼容的版本。

标签： java spring spring-boot spring-security build.gradle

【解决方案1】：

add bellow dependancy
<!-- https://mvnrepository.com/artifact/org.springframework.cloud/spring-cloud-starter-netflix-hystrix -->
<dependency>
    <groupId>org.springframework.cloud</groupId>
    <artifactId>spring-cloud-starter-netflix-hystrix</artifactId>
    <version>2.2.2.RELEASE</version>
</dependency>

【讨论】：

【解决方案2】：

你的依赖有点乱。您正在混合不同版本的 Spring Boot 和 Spring Cloud 的 jar，并使用不兼容的 Spring Boot / Spring Cloud 版本。 Spring Boot 插件（或者更确切地说是依赖插件）将为您管理 Spring Boot 和 Spring Cloud 依赖项。

你的依赖应该是这样的

dependencyManagement {
  imports {
    mavenBom "org.springframework.cloud:spring-cloud-dependencies:${springCloudVersion}"
  }
}

dependencies {

  compile group: 'org.thymeleaf.extras', name: 'thymeleaf-extras-springsecurity5'

  compile group: 'org.springframework.boot', name: 'spring-boot-starter-web'
  compile group: 'org.springframework.boot', name: 'spring-boot-starter-actuator'
  compile group: 'org.springframework.boot', name: 'spring-boot-starter-security'

  compile group: 'org.springframework.cloud', name: 'spring-cloud-starter-eureka'
  compile group: 'org.springframework.cloud', name: 'spring-cloud-starter-zipkin'
  compile group: 'org.springframework.cloud', name: 'spring-cloud-starter-config'


  // Swagger for API testing
  compile("io.springfox:springfox-swagger2:${swagger2version}")
  compile("io.springfox:springfox-swagger-ui:${swagger2version}")
  testCompile("org.springframework.security:spring-security-test")
  testCompile group:  'org.springframework.boot', name: 'spring-boot-starter-test'

}

并且您需要依赖管理插件（以前是 spring boot 插件的一部分）。

apply plugin: 'io.spring.dependency-management'

【讨论】：

通过添加apply plugin: 'io.spring.dependency-management'是导致抽象方法错误：null
什么时候？也不确定这是否与 Gradle 5.5.1 兼容。
因为它不存在了，现在应该是spring-cloud-starter-netflix-eureka-client（我没有改变你的依赖，只是删除了版本）。

【解决方案3】：

使用OpenFeign依赖时抛出异常

<artifactId>spring-cloud-starter-openfeign</artifactId>

切换到 spring-cloud-starter-feign

<dependency>
    <groupId>org.springframework.cloud</groupId> 
    <artifactId>spring-cloud-starter-feign</artifactId> 
    <version>1.4.7.RELEASE</version>
</dependency>

【讨论】：