Solr wiki 解释说SLF4J是 1.4 以上版本使用的日志框架
您还没有提供项目的 POM 依赖项,所以我自己编写了:
<project>
<modelVersion>4.0.0</modelVersion>
<groupId>com.myspotontheweb.demo</groupId>
<artifactId>demo</artifactId>
<version>1.0-SNAPSHOT</version>
<dependencies>
<dependency>
<groupId>org.apache.solr</groupId>
<artifactId>solr-solrj</artifactId>
<version>3.6.1</version>
<exclusions>
<exclusion>
<groupId>commons-logging</groupId>
<artifactId>commons-logging</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.apache.solr</groupId>
<artifactId>solr-core</artifactId>
<version>3.6.1</version>
</dependency>
</dependencies>
</project>
这具有以下依赖关系树:
$ mvn dependency:tree
..
..
[INFO] com.myspotontheweb.demo:demo:jar:1.0-SNAPSHOT
[INFO] +- org.apache.solr:solr-solrj:jar:3.6.1:compile
[INFO] | +- commons-httpclient:commons-httpclient:jar:3.1:compile
[INFO] | +- commons-io:commons-io:jar:2.1:compile
[INFO] | +- org.codehaus.woodstox:wstx-asl:jar:3.2.7:runtime
[INFO] | +- org.slf4j:jcl-over-slf4j:jar:1.6.1:compile
[INFO] | \- org.slf4j:slf4j-api:jar:1.6.1:compile
[INFO] \- org.apache.solr:solr-core:jar:3.6.1:compile
[INFO] +- org.apache.lucene:lucene-core:jar:3.6.1:compile
[INFO] +- org.apache.lucene:lucene-analyzers:jar:3.6.1:compile
[INFO] +- org.apache.lucene:lucene-highlighter:jar:3.6.1:compile
[INFO] +- org.apache.lucene:lucene-kuromoji:jar:3.6.1:compile
[INFO] +- org.apache.lucene:lucene-memory:jar:3.6.1:compile
[INFO] +- org.apache.lucene:lucene-misc:jar:3.6.1:compile
[INFO] +- org.apache.lucene:lucene-phonetic:jar:3.6.1:compile
[INFO] +- org.apache.lucene:lucene-queries:jar:3.6.1:compile
[INFO] | \- jakarta-regexp:jakarta-regexp:jar:1.4:compile
[INFO] +- org.apache.lucene:lucene-spatial:jar:3.6.1:compile
[INFO] +- org.apache.lucene:lucene-spellchecker:jar:3.6.1:compile
[INFO] +- org.apache.lucene:lucene-grouping:jar:3.6.1:compile
[INFO] +- commons-codec:commons-codec:jar:1.6:compile
[INFO] +- commons-fileupload:commons-fileupload:jar:1.2.1:compile
[INFO] +- commons-lang:commons-lang:jar:2.6:compile
[INFO] +- com.google.guava:guava:jar:r05:compile
[INFO] \- javax.servlet:servlet-api:jar:2.4:compile
这些都不是日志记录实现 jar。您会注意到 SolrJ 添加了“jcl-over-slf4j”,以确保将公共日志记录 API 调用重定向到 SLF4J。
要完全禁用 SLF4J 日志记录,请添加特殊的 NOP 依赖项:
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-nop</artifactId>
<version>1.6.1</version>
<scope>runtime</scope>
</dependency>
注意范围声明。编译代码不需要记录实现 jar,如果另一个项目使用您项目的 POM,可能会导致问题。