我正在尝试制作自己的Javac插件,但进展还不是很顺利:(我正在学习本教程:https://www.baeldung.com/java-build-compiler-plugin,当我想测试第一个基本插件时,找不到它
当我输入以下命令时:
javac -cp ./target/classes/javacplugin/ -Xplugin:Getter ./src/main/java/javacPlugin/App.java
我收到此错误:
找不到插件:getter
我该如何解决这个问题?
这是我的源代码树:
这是我的插件代码:
package javacplugin;
import com.sun.source.util.JavacTask;
import com.sun.source.util.Plugin;
import com.sun.tools.javac.api.BasicJavacTask;
import com.sun.tools.javac.util.Context;
import com.sun.tools.javac.util.Log;
/**
* JavacPlugin
*/
public class JavacPlugin implements Plugin {
@Override
public String getName() {
return "Getter";
}
@Override
public void init(JavacTask task, String... arg1) {
Context context = ((BasicJavacTask) task).getContext();
Log.instance(context).printRawLines(Log.WriterKind.NOTICE, "Hello from " + getName());
}
}
这是com.sun.source.util.Plugin
里面的内容:
javacplugin.JavacPlugin
这是我的pom.xml:
<?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>
<groupId>javacplugin</groupId>
<artifactId>javacplugin</artifactId>
<version>1</version>
<name>javacplugin</name>
<!-- FIXME change it to the project's website -->
<url>http://www.example.com</url>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<maven.compiler.source>1.8</maven.compiler.source>
<maven.compiler.target>1.8</maven.compiler.target>
</properties>
<dependencies>
<dependency>
<groupId>com.sun</groupId>
<artifactId>tools</artifactId>
<version>1.8.0</version>
<scope>system</scope>
<systemPath>${java.home}/../lib/tools.jar</systemPath>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.11</version>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<pluginManagement><!-- lock down plugins versions to avoid using Maven defaults (may be moved to parent pom) -->
<plugins>
<!-- clean lifecycle, see https://maven.apache.org/ref/current/maven-core/lifecycles.html#clean_Lifecycle -->
<plugin>
<artifactId>maven-clean-plugin</artifactId>
<version>3.1.0</version>
</plugin>
<!-- default lifecycle, jar packaging: see https://maven.apache.org/ref/current/maven-core/default-bindings.html#Plugin_bindings_for_jar_packaging -->
<plugin>
<artifactId>maven-resources-plugin</artifactId>
<version>3.0.2</version>
</plugin>
<plugin>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.8.0</version>
<configuration>
<compilerArgs>
<arg>-Xplugin:Getter</arg>
</compilerArgs>
</configuration>
</plugin>
<plugin>
<artifactId>maven-surefire-plugin</artifactId>
<version>2.22.1</version>
</plugin>
<plugin>
<artifactId>maven-jar-plugin</artifactId>
<version>3.0.2</version>
</plugin>
<plugin>
<artifactId>maven-install-plugin</artifactId>
<version>2.5.2</version>
</plugin>
<plugin>
<artifactId>maven-deploy-plugin</artifactId>
<version>2.8.2</version>
</plugin>
<!-- site lifecycle, see https://maven.apache.org/ref/current/maven-core/lifecycles.html#site_Lifecycle -->
<plugin>
<artifactId>maven-site-plugin</artifactId>
<version>3.7.1</version>
</plugin>
<plugin>
<artifactId>maven-project-info-reports-plugin</artifactId>
<version>3.0.0</version>
</plugin>
</plugins>
</pluginManagement>
</build>
</project>
答案 0 :(得分:0)
我现在正把头撞到墙上。
javac -cp ./target/classes -Xplugin:Getter ./src/main/java/javacPlugin/App.java
是正确的命令。没有/javacplugin
。我已经坚持了好几天,但我很高兴我终于明白了:D
答案 1 :(得分:0)
您可能需要在根目录中而不是在资源中使用META-INF/。
“要实现这一点,我们需要创建一个名为com.sun.source.util.Plugin的文件,其内容是我们插件的完全限定的类名(com.baeldung.javac.SampleJavacPlugin),并将其放置在META- INF / services目录。” 摘自引用的baeldung文章