“Spring Boot – 无法排除默认日志记录”

huangapple
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英文:

Spring Boot - Can't exclude default logging

问题

我有一个Spring Boot应用程序，我想要在默认日志记录器中使用log4j2。

所以我已经添加了log4j2的依赖并排除了默认的日志依赖：

  1. <dependency>
  2.     <groupId>org.springframework.boot</groupId>
  3.     <artifactId>spring-boot-starter-web</artifactId>
  4.     <exclusions>
  5.         <exclusion>
  6.             <groupId>org.springframework.boot</groupId>
  7.             <artifactId>spring-boot-starter-logging</artifactId>
  8.         </exclusion>
  9.     </exclusions>
  10. </dependency>
  11. <dependency>
  12.     <groupId>org.springframework.boot</groupId>
  13.     <artifactId>spring-boot-starter-log4j2</artifactId>
  14. </dependency>

但我仍然收到以下警告：

  1. SLF4J: 类路径中包含多个SLF4J绑定。
  2. SLF4J: 在 [jar:file:/C:/Users/foobar/.m2/repository/ch/qos/logback/logback-classic/1.2.3/logback-classic-1.2.3.jar!/org/slf4j/impl/StaticLoggerBinder.class] 中找到绑定
  3. SLF4J: 在 [jar:file:/C:/Users/foobar/.m2/repository/org/apache/logging/log4j/log4j-slf4j-impl/2.13.3/log4j-slf4j-impl-2.13.3.jar!/org/slf4j/impl/StaticLoggerBinder.class] 中找到绑定

此外，当我运行 mvn dependency:tree | grep log 命令时，我得到以下结果：

  1. [INFO] |  |  +- org.jboss.logging:jboss-logging:jar:3.4.1.Final:compile
  2. [INFO] |  |  +- org.springframework.boot:spring-boot-starter-logging:jar:2.3.1.RELEASE:compile
  3. [INFO] |  |  |  +- ch.qos.logback:logback-classic:jar:1.2.3:compile
  4. [INFO] |  |  |  |  \- ch.qos.logback:logback-core:jar:1.2.3:compile
  5. [INFO] |  |  |  \- org.apache.logging.log4j:log4j-to-slf4j:jar:2.13.3:compile
  6. [INFO] +- org.springframework.boot:spring-boot-starter-log4j2:jar:2.3.1.RELEASE:compile
  7. [INFO] |  +- org.apache.logging.log4j:log4j-slf4j-impl:jar:2.13.3:compile
  8. [INFO] |  |  \- org.apache.logging.log4j:log4j-api:jar:2.13.3:compile
  9. [INFO] |  +- org.apache.logging.log4j:log4j-core:jar:2.13.3:compile
  10. [INFO] |  +- org.apache.logging.log4j:log4j-jul:jar:2.13.3:compile

为什么会有 jboss-logging？

pom.xml 文件内容如下：

  1. <?xml version="1.0" encoding="UTF-8"?>
  2. <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  3.          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
  4.     <modelVersion>4.0.0</modelVersion>
  5.     <parent>
  6.         <groupId>org.springframework.boot</groupId>
  7.         <artifactId>spring-boot-starter-parent</artifactId>
  8.         <version>2.3.1.RELEASE</version>
  9.         <relativePath/> <!-- lookup parent from repository -->
  10.     </parent>
  11.     <groupId>foo</groupId>
  12.     <artifactId>bar</artifactId>
  13.     <version>0.8.0-SNAPSHOT</version>
  14.     <name>foobar</name>
  16.     <properties>
  17.         <java.version>11</java.version>
  18.     </properties>
  20.     <dependencies>
  21.         <!-- 依赖列表... -->
  22.     </dependencies>
  24.     <build>
  25.         <plugins>
  26.             <plugin>
  27.                 <groupId>org.springframework.boot</groupId>
  28.                 <artifactId>spring-boot-maven-plugin</artifactId>
  29.             </plugin>
  30.         </plugins>
  31.     </build>
  33. </project>
英文:

I have a Spring Boot application and I want to use log4j2 instead of the default logging.

So I've added the log4j2 dependency and exclusion:

  1.         &lt;dependency&gt;
  2.             &lt;groupId&gt;org.springframework.boot&lt;/groupId&gt;
  3.             &lt;artifactId&gt;spring-boot-starter-web&lt;/artifactId&gt;
  4.             &lt;exclusions&gt;
  5.                 &lt;exclusion&gt;
  6.                     &lt;groupId&gt;org.springframework.boot&lt;/groupId&gt;
  7.                     &lt;artifactId&gt;spring-boot-starter-logging&lt;/artifactId&gt;
  8.                 &lt;/exclusion&gt;
  9.             &lt;/exclusions&gt;
  10.         &lt;/dependency&gt;
  11.         &lt;dependency&gt;
  12.             &lt;groupId&gt;org.springframework.boot&lt;/groupId&gt;
  13.             &lt;artifactId&gt;spring-boot-starter-log4j2&lt;/artifactId&gt;
  14.         &lt;/dependency&gt;

But I'm still getting the warning:

  1. SLF4J: Class path contains multiple SLF4J bindings.
  2. SLF4J: Found binding in [jar:file:/C:/Users/foobar/.m2/repository/ch/qos/logback/logback-classic/1.2.3/logback-classic-1.2.3.jar!/org/slf4j/impl/StaticLoggerBinder.class]
  3. SLF4J: Found binding in [jar:file:/C:/Users/foobar/.m2/repository/org/apache/logging/log4j/log4j-slf4j-impl/2.13.3/log4j-slf4j-impl-2.13.3.jar!/org/slf4j/impl/StaticLoggerBinder.class]

Also when I run mvn dependency:tree | grep log I get the following:

  1. [INFO] |  |  +- org.jboss.logging:jboss-logging:jar:3.4.1.Final:compile
  2. [INFO] |  |  +- org.springframework.boot:spring-boot-starter-logging:jar:2.3.1.RELEASE:compile
  3. [INFO] |  |  |  +- ch.qos.logback:logback-classic:jar:1.2.3:compile
  4. [INFO] |  |  |  |  \- ch.qos.logback:logback-core:jar:1.2.3:compile
  5. [INFO] |  |  |  \- org.apache.logging.log4j:log4j-to-slf4j:jar:2.13.3:compile
  6. [INFO] +- org.springframework.boot:spring-boot-starter-log4j2:jar:2.3.1.RELEASE:compile
  7. [INFO] |  +- org.apache.logging.log4j:log4j-slf4j-impl:jar:2.13.3:compile
  8. [INFO] |  |  \- org.apache.logging.log4j:log4j-api:jar:2.13.3:compile
  9. [INFO] |  +- org.apache.logging.log4j:log4j-core:jar:2.13.3:compile
  10. [INFO] |  +- org.apache.logging.log4j:log4j-jul:jar:2.13.3:compile

Why is there jboss-logging?

pom.xml:

  1. &lt;?xml version=&quot;1.0&quot; encoding=&quot;UTF-8&quot;?&gt;
  2. &lt;project xmlns=&quot;http://maven.apache.org/POM/4.0.0&quot; xmlns:xsi=&quot;http://www.w3.org/2001/XMLSchema-instance&quot;
  3.          xsi:schemaLocation=&quot;http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd&quot;&gt;
  4.     &lt;modelVersion&gt;4.0.0&lt;/modelVersion&gt;
  5.     &lt;parent&gt;
  6.         &lt;groupId&gt;org.springframework.boot&lt;/groupId&gt;
  7.         &lt;artifactId&gt;spring-boot-starter-parent&lt;/artifactId&gt;
  8.         &lt;version&gt;2.3.1.RELEASE&lt;/version&gt;
  9.         &lt;relativePath/&gt; &lt;!-- lookup parent from repository --&gt;
  10.     &lt;/parent&gt;
  11.     &lt;groupId&gt;foo&lt;/groupId&gt;
  12.     &lt;artifactId&gt;bar&lt;/artifactId&gt;
  13.     &lt;version&gt;0.8.0-SNAPSHOT&lt;/version&gt;
  14.     &lt;name&gt;foobar&lt;/name&gt;
  16.     &lt;properties&gt;
  17.         &lt;java.version&gt;11&lt;/java.version&gt;
  18.     &lt;/properties&gt;
  20.     &lt;dependencies&gt;
  21.         &lt;dependency&gt;
  22.             &lt;groupId&gt;org.springframework.boot&lt;/groupId&gt;
  23.             &lt;artifactId&gt;spring-boot-starter-data-jpa&lt;/artifactId&gt;
  24.         &lt;/dependency&gt;
  25.         &lt;dependency&gt;
  26.             &lt;groupId&gt;org.springframework.boot&lt;/groupId&gt;
  27.             &lt;artifactId&gt;spring-boot-starter-validation&lt;/artifactId&gt;
  28.         &lt;/dependency&gt;
  29.         &lt;dependency&gt;
  30.             &lt;groupId&gt;org.springframework.boot&lt;/groupId&gt;
  31.             &lt;artifactId&gt;spring-boot-starter-web&lt;/artifactId&gt;
  32.             &lt;exclusions&gt;
  33.                 &lt;exclusion&gt;
  34.                     &lt;groupId&gt;org.springframework.boot&lt;/groupId&gt;
  35.                     &lt;artifactId&gt;spring-boot-starter-logging&lt;/artifactId&gt;
  36.                 &lt;/exclusion&gt;
  37.             &lt;/exclusions&gt;
  38.         &lt;/dependency&gt;
  39.         &lt;dependency&gt;
  40.             &lt;groupId&gt;org.springframework.boot&lt;/groupId&gt;
  41.             &lt;artifactId&gt;spring-boot-starter-log4j2&lt;/artifactId&gt;
  42.         &lt;/dependency&gt;
  44.         &lt;dependency&gt;
  45.             &lt;groupId&gt;org.postgresql&lt;/groupId&gt;
  46.             &lt;artifactId&gt;postgresql&lt;/artifactId&gt;
  47.             &lt;scope&gt;runtime&lt;/scope&gt;
  48.         &lt;/dependency&gt;
  49.         &lt;dependency&gt;
  50.             &lt;groupId&gt;org.projectlombok&lt;/groupId&gt;
  51.             &lt;artifactId&gt;lombok&lt;/artifactId&gt;
  52.             &lt;optional&gt;true&lt;/optional&gt;
  53.         &lt;/dependency&gt;
  54.         &lt;dependency&gt;
  55.             &lt;groupId&gt;org.springframework.boot&lt;/groupId&gt;
  56.             &lt;artifactId&gt;spring-boot-starter-test&lt;/artifactId&gt;
  57.             &lt;scope&gt;test&lt;/scope&gt;
  58.             &lt;exclusions&gt;
  59.                 &lt;exclusion&gt;
  60.                     &lt;groupId&gt;org.junit.vintage&lt;/groupId&gt;
  61.                     &lt;artifactId&gt;junit-vintage-engine&lt;/artifactId&gt;
  62.                 &lt;/exclusion&gt;
  63.             &lt;/exclusions&gt;
  64.         &lt;/dependency&gt;
  66.         &lt;dependency&gt;
  67.             &lt;groupId&gt;org.modelmapper&lt;/groupId&gt;
  68.             &lt;artifactId&gt;modelmapper&lt;/artifactId&gt;
  69.             &lt;version&gt;2.3.6&lt;/version&gt;
  70.         &lt;/dependency&gt;
  72.         &lt;dependency&gt;
  73.             &lt;groupId&gt;junit&lt;/groupId&gt;
  74.             &lt;artifactId&gt;junit&lt;/artifactId&gt;
  75.             &lt;version&gt;4.12&lt;/version&gt;
  76.             &lt;scope&gt;test&lt;/scope&gt;
  77.         &lt;/dependency&gt;
  78.     &lt;/dependencies&gt;
  80.     &lt;build&gt;
  81.         &lt;plugins&gt;
  82.             &lt;plugin&gt;
  83.                 &lt;groupId&gt;org.springframework.boot&lt;/groupId&gt;
  84.                 &lt;artifactId&gt;spring-boot-maven-plugin&lt;/artifactId&gt;
  85.             &lt;/plugin&gt;
  86.         &lt;/plugins&gt;
  87.     &lt;/build&gt;
  89. &lt;/project&gt;

答案1

得分: 5

spring-boot-starter-data-jpa 也依赖于 spring-boot-starter-logging，因此它仍然会被添加到您的类路径中。您可以在 spring-boot-starter-data-jpa 中添加排除，或者更好的做法是添加 spring-boot-starter 依赖项并从其中排除它。

  1. <dependency>
  2.   <groupId>org.springframework.boot</groupId>
  3.   <artifactId>spring-boot-starter</artifactId>
  4.   <exclusions>
  5.     <exclusion>
  6.       <groupId>org.springframework.boot</groupId>
  7.       <artifactId>spring-boot-starter-logging</artifactId>
  8.     </exclusion>
  9.   </exclusions>
  10. </dependency>

这个依赖关系看起来是这样的：spring-boot-starter-web -> spring-boot-starter -> spring-boot-starter-logging（其他 spring-boot-starter-* 依赖项类似）。因此，从 spring-boot-starter 中排除它将确保它不会出现在您的构建路径中。

英文:

spring-boot-starter-data-jpa also depends on spring-boot-starter-logging, so it is still added to your class path. You can add the exclusion to the spring-boot-starter-data-jpa as well or preferably add spring-boot-starter dependency
and exclude it from there.

  1. &lt;dependency&gt;
  2.   &lt;groupId&gt;org.springframework.boot&lt;/groupId&gt;
  3.   &lt;artifactId&gt;spring-boot-starter&lt;/artifactId&gt;
  4.   &lt;exclusions&gt;
  5.     &lt;exclusion&gt;
  6.       &lt;groupId&gt;org.springframework.boot&lt;/groupId&gt;
  7.       &lt;artifactId&gt;spring-boot-starter-logging&lt;/artifactId&gt;
  8.     &lt;/exclusion&gt;
  9.   &lt;/exclusions&gt;
  10. &lt;/dependency&gt;

The dependency looks like this
spring-boot-starter-web -> spring-boot-starter -> spring-boot-starter-logging (and something similar for the other spring-boot-starter-* dependencies). That is why excluding it from the spring-boot-starter will ensure that the it will be excluded from your build path.

huangapple
  • 本文由 发表于 2020年6月29日 01:47:34
  • 转载请务必保留本文链接：https://go.coder-hub.com/62626213.html
  • java
  • log4j
  • maven
  • spring
  • spring-boot
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