打包设置
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| <packaging>jar</packaging>
<build>
<plugins>
<plugin>
<groupId>net.alchim31.maven</groupId>
<artifactId>scala-maven-plugin</artifactId>
<version>3.4.6</version>
<executions>
<execution>
<goals>
<goal>compile</goal>
</goals>
</execution>
</executions>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-assembly-plugin</artifactId>
<version>3.0.0</version>
<configuration>
<archive>
<manifest>
<mainClass>com.xhkjedu.TCS</mainClass>
</manifest>
</archive>
<descriptorRefs>
<descriptorRef>jar-with-dependencies</descriptorRef>
</descriptorRefs>
</configuration>
<executions>
<execution>
<id>make-assembly</id>
<phase>package</phase>
<goals>
<goal>single</goal>
</goals>
</execution>
</executions>
</plugin>
</plugins>
</build>
|
运行报错
Unable to instantiate java compiler
原因
flink服务器上的 flink-table-blink_2.11-1.12.0.jar 将calcite等依赖打入，因此用户的jar包中需要排除calcite相关依赖。
用户项目中可使用maven helper搜索calcite相关依赖，将其provided，并将这些依赖放入flink lib目录下，重启flink服务即可
常见的包含calcite的依赖有：
- hive-exec
- flink-table-planner
- flink-table-planner-blink
- calcite-core
Flink部署的jar在项目中是首先要排除provided的
示例
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| <dependency>
<groupId>org.apache.hive</groupId>
<artifactId>hive-exec</artifactId>
<version>${hive.version}</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.apache.flink</groupId>
<artifactId>flink-table-planner_${scala.binary.version}</artifactId>
<version>${flink.version}</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.apache.flink</groupId>
<artifactId>flink-table-planner-blink_2.12</artifactId>
<version>${flink.version}</version>
<scope>provided</scope>
</dependency>
|
Jar冲突
Flink在运行的时候会先加载安装目录下的lib中的所有jar，要保证项目重复的jar都标记为<scope>provided</scope>。