看起来Spring Boot会自行配置使用Logback和Tomcat。我想禁用它并使用我在类路径中提供的那个。
以下错误消息。
LoggerFactory不是Logback LoggerContext,但Logback在类路径上。删除Logback或竞争实现(类org.slf4j.impl.SimpleLoggerFactory)类[org.slf4j.impl.SimpleLoggerFactory]的对象必须是类ch.qos.logback.classic.LoggerContext的实例
<?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>
<parent>
<artifactId>spring-boot-starter-parent</artifactId>
<groupId>org.springframework.boot</groupId>
<version>1.0.1.RELEASE</version>
</parent>
<groupId>com.fe</groupId>
<artifactId>cloudapp</artifactId>
<version>1.0.0</version>
<name>Withinet-PaaS</name>
<description>Develop your web applications in on our infrastructure and we will worry about administration and scalability of your app.</description>
<properties>
<java.version>1.7</java.version>
<guava.version>16.0.1</guava.version>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
</properties>
<dependencies>
<dependency>
<groupId>com.sun.jersey</groupId>
<artifactId>jersey-client</artifactId>
<version>1.8</version>
</dependency>
<dependency>
<groupId>com.withinet.cloudapp</groupId>
<artifactId>slave</artifactId>
<version>1.0.0</version>
</dependency>
<dependency>
<groupId>org.apache.wicket</groupId>
<artifactId>wicket-core</artifactId>
<version>6.15.0</version>
</dependency>
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-core</artifactId>
<version>4.3.0.Final</version>
</dependency>
<dependency>
<groupId>com.google.code.gson</groupId>
<artifactId>gson</artifactId>
<version>2.2.4</version>
</dependency>
<!-- Spring Boot -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<!-- Hibernate validator -->
<dependency>
<groupId>javax.validation</groupId>
<artifactId>validation-api</artifactId>
<version>1.1.0.Final</version>
</dependency>
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-validator-annotation-processor</artifactId>
<version>4.1.0.Final</version>
</dependency>
<!-- Guava -->
<dependency>
<groupId>com.google.guava</groupId>
<artifactId>guava</artifactId>
<version>${guava.version}</version>
</dependency>
<!-- Java EE -->
<dependency>
<groupId>javax.inject</groupId>
<artifactId>javax.inject</artifactId>
<version>1</version>
</dependency>
<!-- Search -->
<dependency>
<groupId>org.apache.lucene</groupId>
<artifactId>lucene-queryparser</artifactId>
<version>4.8.0</version>
</dependency>
<!-- Security
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-security</artifactId>
</dependency>-->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-tomcat</artifactId>
<scope>provided</scope>
</dependency>
</dependencies>
<build>
<plugins>
<!-- Spring Boot Maven -->
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<configuration>
<mainClass>com.withinet.cloud.Application</mainClass>
<layout>JAR</layout>
</configuration>
<executions>
<execution>
<goals>
<goal>repackage</goal>
</goals>
</execution>
</executions>
</plugin>
</plugins>
</build>
</project>
在spring-boot-starter和spring-boot-starter-web中添加排除项以解决冲突。
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter</artifactId>
<exclusions>
<exclusion>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-logging</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
<exclusions>
<exclusion>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-logging</artifactId>
</exclusion>
</exclusions>
</dependency>
在build.gradle中添加它
configurations.all {
exclude group: 'org.springframework.boot', module: 'spring-boot-starter-tomcat'
exclude group: 'org.springframework.boot', module: 'spring-boot-starter-logging'
exclude group: 'org.springframework.boot', module: 'logback-classic'
}
这对我很有用
configurations {
all*.exclude module : 'spring-boot-starter-logging'
}
但它对maven用户来说不会有用。我的所有依赖项都在libs.gradle中,我不想在其他文件中使用它们。所以这个问题通过在exclude module : 'spring-boot-starter-logging
,spring-boot-starter-data-jpa
中添加spring-boot-starter-test
以及几乎所有引导词来解决。
UPDATE
我的新项目需要更新,结果spring-boot-starter-test
1.5和更老没有spring-boot-starter-logging
。 2.0有它
如果您说出您的首选记录器完全正确,以及您尝试安装它所做的工作,这可能会有所帮助。无论如何,Spring Boot尝试使用类路径中的任何内容,因此如果您不想进行回溯,请将其从类路径中删除。有关log4j in the docs的说明,但同样的事情适用于其他支持的日志记录系统(任何slf4j,log4j或java util)。
如果在尝试使用log4j2时Spring Boot中发生此错误,请执行以下步骤:
发生此错误是因为logback覆盖了log4j2更改。因此,如果要使用log4j2,则必须删除logback库和依赖项。
希望这会对某人有所帮助。
只需在类路径中添加logback.xml配置,并添加添加了root appender的所有配置。一旦Spring引导完成bean加载,它将根据您的配置开始记录。
正确排除默认日志记录的方法,并配置log4j进行日志记录。
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter</artifactId>
<exclusions>
<exclusion>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-logging</artifactId>
</exclusion>
</exclusions>
</dependency>
从Netbeans IDE添加用于回溯的排除项
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
<exclusions>
<exclusion>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-logging</artifactId>
</exclusion>
</exclusions>
</dependency>
在Gradle中添加更好,更通用的解决方案(将排除所有实例):
configurations {
all*.exclude module : 'spring-boot-starter-logging'
}
来自https://docs.gradle.org/current/userguide/dependency_management.html
在gradle中添加解决方案。
dependencies {
compile ('org.springframework.boot:spring-boot-starter') {
exclude module : 'spring-boot-starter-logging'
}
compile ('org.springframework.boot:spring-boot-starter-web') {
exclude module : 'spring-boot-starter-logging'
}
}
我喜欢这样来解决我的问题
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-log4j</artifactId>
<exclusions>
<exclusion>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-log4j12</artifactId>
</exclusion>
</exclusions>
</dependency>
我发现排除完整的spring-boot-starter-logging
模块是没有必要的。所需要的只是排除org.slf4j:slf4j-log4j12
模块。
将其添加到Gradle构建文件将解决此问题:
configurations {
runtime.exclude group: "org.slf4j", module: "slf4j-log4j12"
compile.exclude group: "org.slf4j", module: "slf4j-log4j12"
}
有关详细信息,请参阅其他StackOverflow answer。
对于gradle,
您可以在以下位置查看此解决方案:http://www.idanfridman.com/how-to-exclude-libraries-from-dependcies-using-gradle/
只需要在exclude
中添加configurations
:
configurations {
providedRuntime
compile.exclude(group: 'ch.qos.logback')
}
以下为我工作
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter</artifactId>
<exclusions>
<exclusion>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-logging</artifactId>
</exclusion>
</exclusions>
</dependency>
在pom.xml中找到spring-boot-starter-test并按如下方式修改它:
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<exclusions>
<exclusion>
<artifactId>commons-logging</artifactId>
<groupId>commons-logging</groupId>
</exclusion>
</exclusions>
<scope>test</scope>
</dependency>
它修复了如下错误:
_Caused by: java.lang.IllegalArgumentException:_ **LoggerFactory** is not a **Logback LoggerContext** but *Logback* is on the classpath.
Either remove **Logback** or the competing implementation
(_class org.apache.logging.slf4j.Log4jLoggerFactory_
loaded from file:
**${M2_HOME}/repository/org/apache/logging/log4j/log4j-slf4j-impl/2.6.2/log4j-slf4j-impl-2.6.2.jar**).
If you are using WebLogic you will need to add **'org.slf4j'** to prefer-application-packages in WEB-INF/weblogic.xml: **org.apache.logging.slf4j.Log4jLoggerFactory**
我通过以下方式解决了我的问题:
compile('org.mybatis.spring.boot:mybatis-spring-boot-starter:1.3.0'){
exclude module: 'log4j-slf4j-impl'
exclude module: 'logback-classic'
}
compile('org.springframework.boot:spring-boot-starter-web'){
exclude module: 'log4j-slf4j-impl'
exclude module: 'logback-classic'
}