如何在maven(eclipse)中从avro模式生成源代码

Question

I know this is not the first time this question has been asked. As i have gone through several links, but unable to understand why avro schema is not generating the source code when no error is being thrown in maven(eclipse).  I have tried deleting 'pluginManagement' from pom.xml file but it throws error. 

尝试删除.m2 repo、mvn clean、mvn install，似乎什么都不起作用。不确定问题出在哪里。

另外，你能告诉我如何在从命令行生成源代码时添加"fieldVisibility=private"参数吗。请引导！非常感谢。

这是pom.xml文件

http://maven.apache.org/xsd/maven-4.0.0.xsd">4.0.0

<groupId>kafka</groupId>
<artifactId>ProducerConsumer</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>jar</packaging>
<name>ProducerConsumer</name>
<url>http://maven.apache.org</url>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>
<dependencies>
<dependency>
<groupId>org.apache.kafka</groupId>
<artifactId>kafka-clients</artifactId>
<version>1.0.0</version>
</dependency>
<dependency>
<groupId>io.confluent</groupId>
<artifactId>kafka-avro-serializer</artifactId>
<version>4.0.0</version>
</dependency>
<dependency>
<groupId>org.apache.avro</groupId>
<artifactId>avro</artifactId>
<version>1.8.2</version>
</dependency>
<dependency>
<groupId>org.apache.avro</groupId>
<artifactId>avro-tools</artifactId>
<version>1.8.2</version>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-api</artifactId>
<version>1.7.19</version>
</dependency>
<dependency>
<groupId>ch.qos.logback</groupId>
<artifactId>logback-classic</artifactId>
<version>1.1.6</version>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>3.8.1</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.apache.logging.log4j</groupId>
<artifactId>log4j-core</artifactId>
<version>2.11.2</version>
</dependency>
<dependency>
<groupId>org.apache.logging.log4j</groupId>
<artifactId>log4j-api</artifactId>
<version>2.11.2</version>
</dependency>
</dependencies>
<repositories>
<repository>
<id>confluent</id>
<url>http://packages.confluent.io/maven/</url>
</repository>
</repositories>
<build>
<pluginManagement>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.2</version>
<configuration>
<source>1.8</source>
<target>1.8</target>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.avro</groupId>
<artifactId>avro</artifactId>
<version>1.9.2</version>
<executions>
<execution>
<phase>generate-sources</phase>
<goals>
<goal>schema</goal>
</goals>
<configuration>
<sourceDirectory>${project.basedir}/src/main/avro/</sourceDirectory>
<outputDirectory>${project.basedir}/src/main/java/</outputDirectory>
<fieldVisibility>PRIVATE</fieldVisibility>
<includes>
<include>**/*.avro</include>
</includes>
</configuration>
</execution>
</executions>
</plugin>
</plugins>
</pluginManagement>
</build>

Answer 1

我建议使用正确的设置，如下所示：

有两件事：您没有使用avro maven插件，而且您已经在pluginManagement中配置了它，而不是使用位于<build><plugins>...</plugins></build>中的正确插件。

<project..>
<build>
<plugins>
<plugin>
<groupId>org.apache.avro</groupId>
<artifactId>avro-maven-plugin</artifactId>
<version>1.9.2</version>
<executions>
<execution>
<phase>generate-sources</phase>
<goals>
<goal>schema</goal>
</goals>
<configuration>
<sourceDirectory>${project.basedir}/src/main/avro/</sourceDirectory>
<outputDirectory>${project.basedir}/src/main/java/</outputDirectory>
</configuration>
</execution>
</executions>
</plugin>
</plugins>
</build>