apache flink-外部jar

nmpmafwu  于 2021-06-26  发布在  Flink
关注(0)|答案(2)|浏览(483)

我正在尝试使用maven和一个额外的依赖项创建一个flink应用程序:

<dependency>
      <groupId>com.microsoft.sqlserver</groupId>
      <artifactId>mssql-jdbc</artifactId>
      <version>8.2.2.jre11</version>
  </dependency>

我正试图从我们的数据库中获取额外的信息。当我在本地运行代码时,一切正常,但在flink上运行时,会收到以下错误消息:

所以我最初的想法是依赖性没有使用maven shadow插件加载到fat jar上,但我认为是的。

我的flink是在docker集装箱中运行的,我在集装箱上打开了端口1433:1433(在compose中)。
我的目标是将sql数据添加到流中,以便警报系统使用用户自定义的规则。
以下是my pom.xml的内容:
--> http://maven.apache.org/xsd/maven-4.0.0.xsd"> 4.0.0

<groupId>org.qscale</groupId>
<artifactId>FlinkPrototype</artifactId>
<version>1.0</version>
<packaging>jar</packaging>

<name>Flink Quickstart Job</name>
<url>http://www.myorganization.org</url>

<properties>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    <flink.version>1.10.0</flink.version>
    <java.version>1.8</java.version>
    <scala.binary.version>2.11</scala.binary.version>
    <maven.compiler.source>${java.version}</maven.compiler.source>
    <maven.compiler.target>${java.version}</maven.compiler.target>
</properties>

<repositories>
    <repository>
        <id>apache.snapshots</id>
        <name>Apache Development Snapshot Repository</name>
        <url>https://repository.apache.org/content/repositories/snapshots/</url>
        <releases>
            <enabled>false</enabled>
        </releases>
        <snapshots>
            <enabled>true</enabled>
        </snapshots>
    </repository>
</repositories>

<dependencies>
    <!-- Apache Flink dependencies -->
    <!-- These dependencies are provided, because they should not be packaged into the JAR file. -->
    <dependency>
        <groupId>org.apache.flink</groupId>
        <artifactId>flink-java</artifactId>
        <version>${flink.version}</version>
        <scope>provided</scope>
    </dependency>
    <dependency>
        <groupId>org.apache.flink</groupId>
        <artifactId>flink-streaming-java_${scala.binary.version}</artifactId>
        <version>${flink.version}</version>
        <scope>provided</scope>
    </dependency>

    <!-- Add connector dependencies here. They must be in the default scope (compile). -->

    <!-- Example:

    <dependency>
        <groupId>org.apache.flink</groupId>
        <artifactId>flink-connector-kafka-0.10_${scala.binary.version}</artifactId>
        <version>${flink.version}</version>
    </dependency>
    -->

    <!-- Project dependencies -->
    <dependency>
        <groupId>com.microsoft.sqlserver</groupId>
        <artifactId>mssql-jdbc</artifactId>
        <version>8.2.2.jre11</version>
    </dependency>

    <!-- Add logging framework, to produce console output when running in the IDE. -->
    <!-- These dependencies are excluded from the application JAR by default. -->
    <dependency>
        <groupId>org.slf4j</groupId>
        <artifactId>slf4j-log4j12</artifactId>
        <version>1.7.7</version>
        <scope>runtime</scope>
    </dependency>
    <dependency>
        <groupId>log4j</groupId>
        <artifactId>log4j</artifactId>
        <version>1.2.17</version>
        <scope>runtime</scope>
    </dependency>
</dependencies>

<build>
    <plugins>

        <!-- Java Compiler -->
        <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-compiler-plugin</artifactId>
            <version>3.1</version>
            <configuration>
                <source>${java.version}</source>
                <target>${java.version}</target>
            </configuration>
        </plugin>

        <!-- We use the maven-shade plugin to create a fat jar that contains all necessary dependencies. -->
        <!-- Change the value of <mainClass>...</mainClass> if your program entry point changes. -->
        <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-shade-plugin</artifactId>
            <version>3.1.1</version>
            <executions>
                <!-- Run shade goal on package phase -->
                <execution>
                    <phase>package</phase>
                    <goals>
                        <goal>shade</goal>
                    </goals>
                    <configuration>
                        <shadedArtifactAttached>true</shadedArtifactAttached>
                        <shadedClassifierName>shaded</shadedClassifierName>
                        <artifactSet>
                            <excludes>
                                <exclude>org.apache.flink:force-shading</exclude>
                                <exclude>com.google.code.findbugs:jsr305</exclude>
                                <exclude>org.slf4j:*</exclude>
                                <exclude>log4j:*</exclude>
                            </excludes>
                        </artifactSet>
                        <filters>
                            <filter>
                                <!-- Do not copy the signatures in the META-INF folder.
                                Otherwise, this might cause SecurityExceptions when using the JAR. -->
                                <artifact>*:*</artifact>
                                <excludes>
                                    <exclude>META-INF/*.SF</exclude>
                                    <exclude>META-INF/*.DSA</exclude>
                                    <exclude>META-INF/*.RSA</exclude>
                                </excludes>
                            </filter>
                        </filters>
                        <transformers>
                            <transformer implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer">
                                <mainClass>org.qscale.StreamingJob</mainClass>
                            </transformer>
                        </transformers>
                    </configuration>
                </execution>
            </executions>
        </plugin>
    </plugins>

    <pluginManagement>
        <plugins>

            <!-- This improves the out-of-the-box experience in Eclipse by resolving some warnings. -->
            <plugin>
                <groupId>org.eclipse.m2e</groupId>
                <artifactId>lifecycle-mapping</artifactId>
                <version>1.0.0</version>
                <configuration>
                    <lifecycleMappingMetadata>
                        <pluginExecutions>
                            <pluginExecution>
                                <pluginExecutionFilter>
                                    <groupId>org.apache.maven.plugins</groupId>
                                    <artifactId>maven-shade-plugin</artifactId>
                                    <versionRange>[3.1.1,)</versionRange>
                                    <goals>
                                        <goal>shade</goal>
                                    </goals>
                                </pluginExecutionFilter>
                                <action>
                                    <ignore/>
                                </action>
                            </pluginExecution>
                            <pluginExecution>
                                <pluginExecutionFilter>
                                    <groupId>org.apache.maven.plugins</groupId>
                                    <artifactId>maven-compiler-plugin</artifactId>
                                    <versionRange>[3.1,)</versionRange>
                                    <goals>
                                        <goal>testCompile</goal>
                                        <goal>compile</goal>
                                    </goals>
                                </pluginExecutionFilter>
                                <action>
                                    <ignore/>
                                </action>
                            </pluginExecution>
                        </pluginExecutions>
                    </lifecycleMappingMetadata>
                </configuration>
            </plugin>
        </plugins>
    </pluginManagement>
</build>

谢谢你的帮助!

ar7v8xwq

ar7v8xwq1#

添加 Class.forName("com.microsoft.sqlserver.jdbc.SQLServerDriver") 在你的主要方法将为你工作,我认为,因为阴影似乎是正确的。
另一个问题是,在pom中使用java1.8进行编译,但是添加了一个使用java11编译的依赖项。将jdbc版本更改为以下版本将很有希望起作用。

<dependency>
      <groupId>com.microsoft.sqlserver</groupId>
      <artifactId>mssql-jdbc</artifactId>
      <version>8.2.2.jre8</version>
  </dependency>

请阅读此文了解更多详情

lp0sw83n

lp0sw83n2#

你在Flink身上做得怎么样?在ide中? Docker ?ec2您可能需要将依赖项添加到类路径中。
您还可以尝试更改作用域依赖关系以在pom中编译。
编译

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