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社区首页 >问答首页 >Spring Boot/Gradle/Logback: bootRun失败，并显示“无法实例化[ch.qos.logback.classic.LoggerContext]"：java.lang.AbstractMethodError：

问Spring Boot/Gradle/Logback: bootRun失败，并显示“无法实例化[ch.qos.logback.classic.LoggerContext]"：java.lang.AbstractMethodError：
EN

Stack Overflow用户
提问于 2019-10-07 04:05:59
回答 1查看 2.4K关注 0票数 0

在一个新的Spring Boot应用程序中，当我使用gradle bootRun时，我看到了这个错误：

代码语言：javascript
复制
Failed to instantiate [ch.qos.logback.classic.LoggerContext]
Reported exception:
java.lang.AbstractMethodError: ch.qos.logback.classic.pattern.EnsureExceptionHandling.process(Lch/qos/logback/core/Context;Lch/qos/logback/core/pattern/Converter;)V
    at ch.qos.logback.core.pattern.PatternLayoutBase.start(PatternLayoutBase.java:86)
    at ch.qos.logback.classic.encoder.PatternLayoutEncoder.start(PatternLayoutEncoder.java:28)
    at ch.qos.logback.classic.BasicConfigurator.configure(BasicConfigurator.java:50)
    at ch.qos.logback.classic.util.ContextInitializer.autoConfig(ContextInitializer.java:164)
    at org.slf4j.impl.StaticLoggerBinder.init(StaticLoggerBinder.java:85)
    at org.slf4j.impl.StaticLoggerBinder.<clinit>(StaticLoggerBinder.java:55)
    at org.slf4j.LoggerFactory.bind(LoggerFactory.java:150)
    at org.slf4j.LoggerFactory.performInitialization(LoggerFactory.java:124)
    at org.slf4j.LoggerFactory.getILoggerFactory(LoggerFactory.java:412)
    at org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:357)
    at org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:383)
    at com.klarna.risk.decision.application.RiskDecisionApplication.<clinit>(RiskDecisionApplication.java:14)

build.gradle

代码语言：javascript
复制
buildscript {
    repositories {
        jcenter()
        maven { url 'http://repo.spring.io/release' }
    }

    dependencies {
        classpath 'org.gretty:gretty:+'
    }
}

plugins {
    id 'org.springframework.boot' version '2.1.9.RELEASE'
    id 'io.spring.dependency-management' version '1.0.8.RELEASE'
    id 'java'
    id 'war'
}
apply plugin: 'org.gretty'

repositories {
    jcenter()
    maven { url 'http://repo.spring.io/release' }
}

gretty { // for Gradle 4.0+
    springBoot = true
    springBootVersion = '2.1.9.RELEASE'
    httpPort = 8080
    contextPath = ''
}

repositories {
    mavenCentral()
}
group = 'com.example.newapp'
version = '0.0.1-SNAPSHOT'
sourceCompatibility = 1.8
targetCompatibility = 1.8

sourceSets {
    test {
        java {
            srcDirs = ['src/test/java', 'src/api-test/java']
        }
    }
}
configurations {
    compile.exclude module: "spring-boot-starter-tomcat"
}
dependencies {
    implementation 'org.springframework.boot:spring-boot-starter'
    implementation "org.springframework.boot:spring-boot-starter-jetty"
    testImplementation 'org.springframework.boot:spring-boot-starter-test'
}

有什么问题吗？

java
spring-boot
gradle
logback
EN

回答 1

Stack Overflow用户

发布于 2019-10-07 04:05:59

当我检查gradle dependencyInsight --dependency logback时，我看到：

代码语言：javascript
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> Task :dependencyInsight
ch.qos.logback:logback-classic:1.1.3 (selected by rule)
   variant "compile" [
      org.gradle.status              = release (not requested)
      org.gradle.usage               = java-api
      org.gradle.libraryelements     = jar (compatible with: classes)
      org.gradle.category            = library (not requested)

      Requested attributes not found in the selected variant:
         org.gradle.dependency.bundling = external
         org.gradle.jvm.version         = 8
   ]

ch.qos.logback:logback-classic:1.1.3
\--- compileClasspath

ch.qos.logback:logback-classic:1.2.3 -> 1.1.3
\--- org.springframework.boot:spring-boot-starter-logging:2.1.9.RELEASE
     \--- org.springframework.boot:spring-boot-starter:2.1.9.RELEASE
          +--- compileClasspath (requested org.springframework.boot:spring-boot-starter)
          +--- org.springframework.boot:spring-boot-starter-web:2.1.9.RELEASE
          |    +--- compileClasspath (requested org.springframework.boot:spring-boot-starter-web)
          |    \--- org.springframework.boot:spring-boot-starter-websocket:2.1.9.RELEASE
          |         \--- compileClasspath
          +--- org.springframework.boot:spring-boot-starter-json:2.1.9.RELEASE
          |    +--- org.springframework.boot:spring-boot-starter-web:2.1.9.RELEASE (*)
          |    \--- org.springframework.boot:spring-boot-starter-jersey:2.1.9.RELEASE
          |         \--- compileClasspath (requested org.springframework.boot:spring-boot-starter-jersey)
          \--- org.springframework.boot:spring-boot-starter-validation:2.1.9.RELEASE
               \--- org.springframework.boot:spring-boot-starter-jersey:2.1.9.RELEASE (*)

ch.qos.logback:logback-core:1.2.3 (selected by rule)
   variant "compile" [
      org.gradle.status              = release (not requested)
      org.gradle.usage               = java-api
      org.gradle.libraryelements     = jar (compatible with: classes)
      org.gradle.category            = library (not requested)

      Requested attributes not found in the selected variant:
         org.gradle.dependency.bundling = external
         org.gradle.jvm.version         = 8
   ]

ch.qos.logback:logback-core:1.1.3 -> 1.2.3
\--- ch.qos.logback:logback-classic:1.1.3
     +--- compileClasspath
     \--- org.springframework.boot:spring-boot-starter-logging:2.1.9.RELEASE (requested ch.qos.logback:logback-classic:1.2.3)
          \--- org.springframework.boot:spring-boot-starter:2.1.9.RELEASE
               +--- compileClasspath (requested org.springframework.boot:spring-boot-starter)
               +--- org.springframework.boot:spring-boot-starter-web:2.1.9.RELEASE
               |    +--- compileClasspath (requested org.springframework.boot:spring-boot-starter-web)
               |    \--- org.springframework.boot:spring-boot-starter-websocket:2.1.9.RELEASE
               |         \--- compileClasspath
               +--- org.springframework.boot:spring-boot-starter-json:2.1.9.RELEASE
               |    +--- org.springframework.boot:spring-boot-starter-web:2.1.9.RELEASE (*)
               |    \--- org.springframework.boot:spring-boot-starter-jersey:2.1.9.RELEASE
               |         \--- compileClasspath (requested org.springframework.boot:spring-boot-starter-jersey)
               \--- org.springframework.boot:spring-boot-starter-validation:2.1.9.RELEASE
                    \--- org.springframework.boot:spring-boot-starter-jersey:2.1.9.RELEASE (*)

(*) - dependencies omitted (listed previously)

A web-based, searchable dependency report is available by adding the --scan option.

看起来Spring Boot2.1.9使用的是使用logback-classic:1.1.3的org.springframework.boot:spring-boot-starter-logging:2.1.9.RELEASE。谷歌的某个地方告诉我，Spring Boot依赖项管理有一个bug，允许在这里使用不同版本的logback-core和logback-classic，并导致冲突。

我添加了logback-core:1.1.3的依赖项，这个问题就解决了。

代码语言：javascript
复制
compile group: 'ch.qos.logback', name: 'logback-core', version: '1.1.3'

如果您遇到同样的问题，请务必检查Spring Boot中使用的logback的版本。

票数 0
EN
页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：

https://stackoverflow.com/questions/58260835

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