Question

我正在尝试使用Log4j2 API编写版本为2.8.2的Converter插件，但无法导入org.apache.logging.log4j.core以导入以下内容：

org.apache.logging.log4j.core.LogEvent，org.apache.logging.log4j.core.config.plugins.Plugin，org.apache.logging.log4j.core.pattern.*

我添加了maven依赖项，这适用于Log4j 2.8.1

<dependency>
  <groupId>org.apache.logging.log4j</groupId>
  <artifactId>log4j-core</artifactId>
  <version>2.8.2</version>
</dependency>
<dependency>
   <groupId>org.apache.logging.log4j</groupId>
   <artifactId>log4j-api</artifactId>
   <version>2.8.2</version>
</dependency>

更新：log4j-core-2.8.2.jar内容

的pom.xml

<?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>

    <groupId>com.andrew_flower.test</groupId>
    <artifactId>logtest1</artifactId>
    <version>1.0-SNAPSHOT</version>

    <dependencies>
        <dependency>
            <groupId>org.apache.logging.log4j</groupId>
            <artifactId>log4j-api</artifactId>
            <version>2.8.2</version>
        </dependency>
        <dependency>
            <groupId>org.apache.logging.log4j</groupId>
            <artifactId>log4j-core</artifactId>
            <version>2.8.2</version>
        </dependency>
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>4.9</version>
            <scope>test</scope>
        </dependency>
    </dependencies>

    <repositories>
        <repository>
            <id>central</id>
            <url>http://repo1.maven.org/maven2/</url>
        </repository>
        <repository>
            <id>apache.snapshots</id>
            <name>Apache Release Distribution Repository</name>
            <url>
                http://repository.apache.org/snapshots
            </url>
        </repository>
    </repositories>
</project>

Answer 1

我相信您遇到了maven本地存储库的奇怪配置问题，因为您的log4j-core.jar内容来自log4j-api.jar
我将你的pom.xml复制到我的环境中进行测试，它运行正常。尝试导航到.m2存储库（yourUser / .m2 / repository / org / apache / logging / log4j）的电脑上的log4j文件夹，然后删除所有文件夹，然后转到您的项目和执行 mvn install 再次导入所有库，我希望它会有所帮助。

Log4j2 Java无法导入org.apache.logging.log4j.core

1 个答案: