在同一个项目中使用同一工具的不同版本会产生冲突,可以通过改变包名来解决冲突,因为包的本来用途就是解决同名问题.

下面是shade kafka的pom文件:

<?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>
        <groupId>com.datapps.carpo</groupId>
        <artifactId>carpo</artifactId>
        <version>2.1</version>
    </parent>

    <properties>
        <kafka.version>0.9.0.0</kafka.version>
    </properties>

    <artifactId>carpo-shaded-kafka-09</artifactId>
    <packaging>jar</packaging>
    <version>0.9.0.0-2.1</version>

    <dependencies>
        <dependency>
            <groupId>org.apache.kafka</groupId>
            <artifactId>kafka-clients</artifactId>
            <version>${kafka.version}</version>
        </dependency>
    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-shade-plugin</artifactId>
                <version>3.0.0</version>
                <executions>
                    <execution>
                        <id>shade-kafka</id>
                        <phase>package</phase>
                        <goals>
                            <goal>shade</goal>
                        </goals>
                        <configuration>
                            <shadedArtifactAttached>false</shadedArtifactAttached>
                            <promoteTransitiveDependencies>true</promoteTransitiveDependencies>
                            <createDependencyReducedPom>true</createDependencyReducedPom>
                            <createSourcesJar>true</createSourcesJar>
                            <relocations>
                                <relocation>
                                    <pattern>org.apache.kafka</pattern>
                                    <shadedPattern>com.datapps.carpo.shaded.kafka09</shadedPattern>
                                </relocation>
                            </relocations>
                        </configuration>
                    </execution>
                </executions>
            </plugin>
        </plugins>
    </build>

</project>