Maven - 如何在使用 openjpa 插件时 运行 只编译一次目标
Maven - how to run compile goal only once while using openjpa plugin
当我 运行 mvn clean compile openjpa:enhance install 我注意到 compile 目标 运行ning 两次 - 一次在 openjpa:enhance 之前和之后（还有 resources), 这导致增强的 类 和 openjpa:enhance 被丢弃，因为它们被再次编译并重写。
如何更改 pom.xml 或 mvn 命令参数使其不会 运行 compile 两次，而只在 openjpa:enhance 之前一次？ install 最后是必填项。
pom.xml:
<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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>registry</groupId>
<artifactId>datalayer</artifactId>
<version>0.0.1</version>
<packaging>jar</packaging>
<properties>
<maven.compiler.target>11</maven.compiler.target>
<maven.compiler.source>11</maven.compiler.source>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<project.reporting.sourceEncoding>UTF-8</project.reporting.sourceEncoding>
</properties>
<build>
<pluginManagement>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.8.1</version>
</plugin>
<plugin>
<groupId>org.apache.openjpa</groupId>
<artifactId>openjpa-maven-plugin</artifactId>
<version>3.1.2</version>
<configuration>
<includes>datalayer/dto/*.class</includes>
<addDefaultConstructor>true</addDefaultConstructor>
<enforcePropertyRestrictions>true</enforcePropertyRestrictions>
</configuration>
<executions>
<execution>
<id>enhancer</id>
<phase>process-classes</phase>
<goals>
<goal>enhance</goal>
</goals>
</execution>
</executions>
</plugin>
</plugins>
</pluginManagement>
</build>
<dependencies>
<dependency>
<groupId>org.apache.openjpa</groupId>
<artifactId>openjpa</artifactId>
<version>3.1.2</version>
</dependency>
<dependency>
<groupId>org.apache.derby</groupId>
<artifactId>derby</artifactId>
<version>10.15.2.0</version>
</dependency>
<dependency>
<groupId>org.apache.derby</groupId>
<artifactId>derbytools</artifactId>
<version>10.15.2.0</version>
</dependency>
</dependencies>
</project>
来自mvn clean compile openjpa:enhance install的输出：
[INFO] Scanning for projects...
[INFO]
[INFO] -------------------< registry:openjpaenhancingtest >--------------------
[INFO] Building openjpaenhancingtest 0.0.1
[INFO] --------------------------------[ jar ]---------------------------------
[INFO]
[INFO] --- maven-clean-plugin:2.5:clean (default-clean) @ openjpaenhancingtest ---
[INFO] Deleting C:\Users\wortigson\Desktop\ISMatrikaBcWorkspace\Openjpa.Test\target
[INFO]
[INFO] --- maven-resources-plugin:2.6:resources (default-resources) @ openjpaenhancingtest ---
[INFO] Using 'UTF-8' encoding to copy filtered resources.
[INFO] Copying 1 resource
[INFO]
[INFO] --- maven-compiler-plugin:3.8.1:compile (default-compile) @ openjpaenhancingtest ---
[WARNING] Can't extract module name from geronimo-jms_1.1_spec-1.1.1.jar: geronimo.jms.1.1.spec: Invalid module name: '1' is not a Java identifier
[WARNING] Can't extract module name from geronimo-jta_1.1_spec-1.1.1.jar: geronimo.jta.1.1.spec: Invalid module name: '1' is not a Java identifier
[INFO] Changes detected - recompiling the module!
[INFO] Compiling 3 source files to C:\Users\wortigson\Desktop\ISMatrikaBcWorkspace\Openjpa.Test\target\classes
[INFO]
[INFO] --- openjpa-maven-plugin:3.1.2:enhance (default-cli) @ openjpaenhancingtest ---
88 DataLayer INFO [main] openjpa.Tool - Enhancer running on type "class entities.EntityPerson".
[INFO]
[INFO] --- maven-resources-plugin:2.6:resources (default-resources) @ openjpaenhancingtest ---
[INFO] Using 'UTF-8' encoding to copy filtered resources.
[INFO] Copying 1 resource
[INFO]
[INFO] --- maven-compiler-plugin:3.8.1:compile (default-compile) @ openjpaenhancingtest ---
[WARNING] Can't extract module name from geronimo-jms_1.1_spec-1.1.1.jar: geronimo.jms.1.1.spec: Invalid module name: '1' is not a Java identifier
[WARNING] Can't extract module name from geronimo-jta_1.1_spec-1.1.1.jar: geronimo.jta.1.1.spec: Invalid module name: '1' is not a Java identifier
[INFO] Changes detected - recompiling the module!
[INFO] Compiling 3 source files to C:\Users\wortigson\Desktop\ISMatrikaBcWorkspace\Openjpa.Test\target\classes
[INFO]
[INFO] --- maven-resources-plugin:2.6:testResources (default-testResources) @ openjpaenhancingtest ---
[INFO] Using 'UTF-8' encoding to copy filtered resources.
[INFO] Copying 0 resource
[INFO]
[INFO] --- maven-compiler-plugin:3.8.1:testCompile (default-testCompile) @ openjpaenhancingtest ---
[WARNING] Can't extract module name from geronimo-jta_1.1_spec-1.1.1.jar: geronimo.jta.1.1.spec: Invalid module name: '1' is not a Java identifier
[WARNING] Can't extract module name from geronimo-jms_1.1_spec-1.1.1.jar: geronimo.jms.1.1.spec: Invalid module name: '1' is not a Java identifier
[INFO] Changes detected - recompiling the module!
[INFO]
[INFO] --- maven-surefire-plugin:2.12.4:test (default-test) @ openjpaenhancingtest ---
[INFO]
[INFO] --- maven-jar-plugin:2.4:jar (default-jar) @ openjpaenhancingtest ---
[INFO] Building jar: C:\Users\wortigson\Desktop\ISMatrikaBcWorkspace\Openjpa.Test\target\openjpaenhancingtest-0.0.1.jar
[INFO]
[INFO] --- maven-install-plugin:2.4:install (default-install) @ openjpaenhancingtest ---
[INFO] Installing C:\Users\wortigson\Desktop\ISMatrikaBcWorkspace\Openjpa.Test\target\openjpaenhancingtest-0.0.1.jar to C:\Users\wortigson\.m2\repository\registry\openjpaenhancingtest[=12=].0.1\openjpaenhancingtest-0.0.1.jar
[INFO] Installing C:\Users\wortigson\Desktop\ISMatrikaBcWorkspace\Openjpa.Test\pom.xml to C:\Users\wortigson\.m2\repository\registry\openjpaenhancingtest[=12=].0.1\openjpaenhancingtest-0.0.1.pom
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
您需要将 openjpa:enhance 添加到 POM 本身。那你就 运行 mvn clean install.
当我 运行 mvn clean compile openjpa:enhance install 我注意到 compile 目标 运行ning 两次 - 一次在 openjpa:enhance 之前和之后（还有 resources), 这导致增强的 类 和 openjpa:enhance 被丢弃，因为它们被再次编译并重写。
如何更改 pom.xml 或 mvn 命令参数使其不会 运行 compile 两次，而只在 openjpa:enhance 之前一次？ install 最后是必填项。
pom.xml:
<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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>registry</groupId>
<artifactId>datalayer</artifactId>
<version>0.0.1</version>
<packaging>jar</packaging>
<properties>
<maven.compiler.target>11</maven.compiler.target>
<maven.compiler.source>11</maven.compiler.source>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<project.reporting.sourceEncoding>UTF-8</project.reporting.sourceEncoding>
</properties>
<build>
<pluginManagement>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.8.1</version>
</plugin>
<plugin>
<groupId>org.apache.openjpa</groupId>
<artifactId>openjpa-maven-plugin</artifactId>
<version>3.1.2</version>
<configuration>
<includes>datalayer/dto/*.class</includes>
<addDefaultConstructor>true</addDefaultConstructor>
<enforcePropertyRestrictions>true</enforcePropertyRestrictions>
</configuration>
<executions>
<execution>
<id>enhancer</id>
<phase>process-classes</phase>
<goals>
<goal>enhance</goal>
</goals>
</execution>
</executions>
</plugin>
</plugins>
</pluginManagement>
</build>
<dependencies>
<dependency>
<groupId>org.apache.openjpa</groupId>
<artifactId>openjpa</artifactId>
<version>3.1.2</version>
</dependency>
<dependency>
<groupId>org.apache.derby</groupId>
<artifactId>derby</artifactId>
<version>10.15.2.0</version>
</dependency>
<dependency>
<groupId>org.apache.derby</groupId>
<artifactId>derbytools</artifactId>
<version>10.15.2.0</version>
</dependency>
</dependencies>
</project>
来自mvn clean compile openjpa:enhance install的输出：
[INFO] Scanning for projects...
[INFO]
[INFO] -------------------< registry:openjpaenhancingtest >--------------------
[INFO] Building openjpaenhancingtest 0.0.1
[INFO] --------------------------------[ jar ]---------------------------------
[INFO]
[INFO] --- maven-clean-plugin:2.5:clean (default-clean) @ openjpaenhancingtest ---
[INFO] Deleting C:\Users\wortigson\Desktop\ISMatrikaBcWorkspace\Openjpa.Test\target
[INFO]
[INFO] --- maven-resources-plugin:2.6:resources (default-resources) @ openjpaenhancingtest ---
[INFO] Using 'UTF-8' encoding to copy filtered resources.
[INFO] Copying 1 resource
[INFO]
[INFO] --- maven-compiler-plugin:3.8.1:compile (default-compile) @ openjpaenhancingtest ---
[WARNING] Can't extract module name from geronimo-jms_1.1_spec-1.1.1.jar: geronimo.jms.1.1.spec: Invalid module name: '1' is not a Java identifier
[WARNING] Can't extract module name from geronimo-jta_1.1_spec-1.1.1.jar: geronimo.jta.1.1.spec: Invalid module name: '1' is not a Java identifier
[INFO] Changes detected - recompiling the module!
[INFO] Compiling 3 source files to C:\Users\wortigson\Desktop\ISMatrikaBcWorkspace\Openjpa.Test\target\classes
[INFO]
[INFO] --- openjpa-maven-plugin:3.1.2:enhance (default-cli) @ openjpaenhancingtest ---
88 DataLayer INFO [main] openjpa.Tool - Enhancer running on type "class entities.EntityPerson".
[INFO]
[INFO] --- maven-resources-plugin:2.6:resources (default-resources) @ openjpaenhancingtest ---
[INFO] Using 'UTF-8' encoding to copy filtered resources.
[INFO] Copying 1 resource
[INFO]
[INFO] --- maven-compiler-plugin:3.8.1:compile (default-compile) @ openjpaenhancingtest ---
[WARNING] Can't extract module name from geronimo-jms_1.1_spec-1.1.1.jar: geronimo.jms.1.1.spec: Invalid module name: '1' is not a Java identifier
[WARNING] Can't extract module name from geronimo-jta_1.1_spec-1.1.1.jar: geronimo.jta.1.1.spec: Invalid module name: '1' is not a Java identifier
[INFO] Changes detected - recompiling the module!
[INFO] Compiling 3 source files to C:\Users\wortigson\Desktop\ISMatrikaBcWorkspace\Openjpa.Test\target\classes
[INFO]
[INFO] --- maven-resources-plugin:2.6:testResources (default-testResources) @ openjpaenhancingtest ---
[INFO] Using 'UTF-8' encoding to copy filtered resources.
[INFO] Copying 0 resource
[INFO]
[INFO] --- maven-compiler-plugin:3.8.1:testCompile (default-testCompile) @ openjpaenhancingtest ---
[WARNING] Can't extract module name from geronimo-jta_1.1_spec-1.1.1.jar: geronimo.jta.1.1.spec: Invalid module name: '1' is not a Java identifier
[WARNING] Can't extract module name from geronimo-jms_1.1_spec-1.1.1.jar: geronimo.jms.1.1.spec: Invalid module name: '1' is not a Java identifier
[INFO] Changes detected - recompiling the module!
[INFO]
[INFO] --- maven-surefire-plugin:2.12.4:test (default-test) @ openjpaenhancingtest ---
[INFO]
[INFO] --- maven-jar-plugin:2.4:jar (default-jar) @ openjpaenhancingtest ---
[INFO] Building jar: C:\Users\wortigson\Desktop\ISMatrikaBcWorkspace\Openjpa.Test\target\openjpaenhancingtest-0.0.1.jar
[INFO]
[INFO] --- maven-install-plugin:2.4:install (default-install) @ openjpaenhancingtest ---
[INFO] Installing C:\Users\wortigson\Desktop\ISMatrikaBcWorkspace\Openjpa.Test\target\openjpaenhancingtest-0.0.1.jar to C:\Users\wortigson\.m2\repository\registry\openjpaenhancingtest[=12=].0.1\openjpaenhancingtest-0.0.1.jar
[INFO] Installing C:\Users\wortigson\Desktop\ISMatrikaBcWorkspace\Openjpa.Test\pom.xml to C:\Users\wortigson\.m2\repository\registry\openjpaenhancingtest[=12=].0.1\openjpaenhancingtest-0.0.1.pom
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
您需要将 openjpa:enhance 添加到 POM 本身。那你就 运行 mvn clean install.