Spring Boot + Tomcat + Jetty - 应用程序无法启动
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【中文标题】Spring Boot + Tomcat + Jetty - 应用程序无法启动【英文标题】:Spring Boot + Tomcat + Jetty - Application failed to start 【发布时间】:2021-04-19 15:33:39 【问题描述】:我正在使用 Spring Boot + Java 8。添加了一个 REST 资源并尝试测试以确保基本配置正确。
但我在启动 Spring Boot 应用程序时遇到了问题。请查找以下日志。
021-01-15 00:19:53.320 WARN 22065 --- [ main] ConfigServletWebServerApplicationContext : Exception encountered during context initialization - cancelling refresh attempt: org.springframework.context.ApplicationContextException: Unable to start web server; nested exception is java.lang.NoSuchMethodError: org.apache.tomcat.util.ExceptionUtils.preload()V
2021-01-15 00:19:53.329 INFO 22065 --- [ main] ConditionEvaluationReportLoggingListener :
Error starting ApplicationContext. To display the conditions report re-run your application with 'debug' enabled.
2021-01-15 00:19:53.347 ERROR 22065 --- [ main] o.s.b.d.LoggingFailureAnalysisReporter :
***************************
APPLICATION FAILED TO START
***************************
Description:
An attempt was made to call a method that does not exist. The attempt was made from the following location:
org.apache.catalina.startup.Tomcat.<init>(Tomcat.java:183)
The following method did not exist:
org.apache.tomcat.util.ExceptionUtils.preload()V
The method's class, org.apache.tomcat.util.ExceptionUtils, is available from the following locations:
jar:file:/home/xyz/.gradle/caches/modules-2/files-2.1/org.eclipse.jetty/jetty-runner/9.3.20.v20170531/56d1d067b4e42a6c603ece754534f9a65211924a/jetty-runner-9.3.20.v20170531.jar!/org/apache/tomcat/util/ExceptionUtils.class
jar:file:/home/xyz/.gradle/caches/modules-2/files-2.1/org.apache.tomcat.embed/tomcat-embed-core/9.0.41/a43e9711e85073187d04b137882b4b7957180ef0/tomcat-embed-core-9.0.41.jar!/org/apache/tomcat/util/ExceptionUtils.class
The class hierarchy was loaded from the following locations:
org.apache.tomcat.util.ExceptionUtils: file:/home/xyz/.gradle/caches/modules-2/files-2.1/org.eclipse.jetty/jetty-runner/9.3.20.v20170531/56d1d067b4e42a6c603ece754534f9a65211924a/jetty-runner-9.3.20.v20170531.jar
Action:
Correct the classpath of your application so that it contains a single, compatible version of org.apache.tomcat.util.ExceptionUtils
我尝试排除tomcat,但仍然遇到同样的问题。
请在下面查看我的 Gradle 设置。
plugins
id 'org.springframework.boot' version '2.4.1'
id 'io.spring.dependency-management' version '1.0.10.RELEASE'
id 'java'
group = 'com.hive'
version = '0.0.1-SNAPSHOT'
sourceCompatibility = '1.8'
targetCompatibility = '1.8'
configurations
all*.exclude module: 'log4j'
all*.exclude module: 'log4j-core'
all*.exclude module: 'slf4j-log4j12'
all*.exclude module: 'log4j-slf4j-impl'
repositories
mavenCentral()
dependencies
compile group: 'org.apache.commons', name: 'commons-dbcp2', version: '2.7.0'
compile group: 'org.apache.hive', name: 'hive-jdbc', version: '3.1.2'
compile group: 'org.springframework.boot', name: 'spring-boot-starter-web'
compile group: 'org.springframework.boot', name: 'spring-boot-starter-jdbc'
compileOnly 'org.projectlombok:lombok'
annotationProcessor 'org.projectlombok:lombok'
testImplementation 'org.springframework.boot:spring-boot-starter-test'
test
useJUnitPlatform()
请给我一些解决上述依赖问题的解决方案。
【问题讨论】:
【参考方案1】:问题在于 hive-jdbc 驱动程序会下载发生依赖冲突的 jetty-runner。
从 hive-jdbc 中排除 jetty-runner 后,上述冲突问题得到解决。
compile(group: 'org.apache.hive', name: 'hive-jdbc', version: '3.1.2')
exclude(group: 'org.eclipse.jetty', module: 'jetty-runner')
【讨论】:
谢谢,我也有类似的问题。这个解决方案有帮助:)【参考方案2】:我想这可能是因为你没有在你的构建中添加 gradle 插件,你可以这样做:
plugins
id "org.springframework.boot" version "2.0.1.RELEASE"
如果您使用的是早于 2.1 的 Gradle 版本或者您需要动态配置,则可以这样添加:
buildscript
ext
springBootVersion = '2.0.1.RELEASE'
repositories
mavenCentral()
dependencies
classpath(
"org.springframework.boot:spring-boot-gradle-plugin:$springBootVersion")
apply plugin: 'org.springframework.boot'
让我知道这是否有效。
【讨论】:
如果您查看我上面的 gradle 设置,我已经添加了插件。而且我使用的是 gradle 版本 6.7。以上是关于Spring Boot + Tomcat + Jetty - 应用程序无法启动的主要内容,如果未能解决你的问题,请参考以下文章
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