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graalvm 编译原生java 解决反射的问题 maven配置

作者:互联网

由来

之前已经采坑完成了基于maven项目的java 二进制编译,但实际上基于原生的程序,在运行时是无法进行反射的,需要单独生成配置文件

手动配置是不可能的,所以graavm提供一个agent工具,该工具会生成整个代码中需要用到反射的配置文件,但前提是,需要你把项目打成jar包....生成配置文件之后,再编译成二进制。
好了,编译不成功遇到问题可以来群里找我 626070845,接下来,开干

实战

pom

<?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">

    <groupId>com.langs</groupId>
    <version>1.0-SNAPSHOT</version>
    <modelVersion>4.0.0</modelVersion>

    <properties>

        <maven.compiler.source>17</maven.compiler.source>
        <maven.compiler.target>17</maven.compiler.target>

    </properties>
    <artifactId>native-netty-log4j</artifactId>

    <dependencies>
        <dependency>
            <groupId>cn.hutool</groupId>
            <artifactId>hutool-all</artifactId>
            <version>5.8.0.M3</version>
        </dependency>

        <dependency>
            <groupId>io.netty</groupId>
            <artifactId>netty-all</artifactId>
            <version>4.1.75.Final</version>
        </dependency>

        <dependency>
            <groupId>org.slf4j</groupId>
            <artifactId>slf4j-api</artifactId>
            <version>1.7.5</version>
        </dependency>

        <dependency>
            <groupId>org.slf4j</groupId>
            <artifactId>slf4j-log4j12</artifactId>
            <version>1.7.5</version>
        </dependency>
        <dependency>
            <groupId>log4j</groupId>
            <artifactId>log4j</artifactId>
            <version>1.2.12</version>
        </dependency>


        <dependency>
            <groupId>com.ibeetl</groupId>
            <artifactId>beetl</artifactId>
            <version>3.10.0.RELEASE</version>
        </dependency>



    </dependencies>


    <build>
        <finalName>native-image-js</finalName>
        <plugins>







<!--            <plugin>-->
<!--                <groupId>org.apache.maven.plugins</groupId>-->
<!--                <artifactId>maven-shade-plugin</artifactId>-->
<!--                <version>3.2.4</version>-->
<!--                <executions>-->
<!--                    <execution>-->
<!--                        <id>package-jar</id>-->
<!--                        <phase>package</phase>-->
<!--                        <goals>-->
<!--                            <goal>shade</goal>-->
<!--                        </goals>-->
<!--                        <configuration>-->
<!--                            <transformers>-->
<!--                                <transformer implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer">-->
<!--                                    <mainClass>com.lang.Application</mainClass>-->
<!--                                </transformer>-->
<!--                            </transformers>-->
<!--                        </configuration>-->
<!--                    </execution>-->
<!--                </executions>-->
<!--            </plugin>-->





            <plugin>
                <groupId>org.graalvm.nativeimage</groupId>
                <artifactId>native-image-maven-plugin</artifactId>
                <version>20.3.0</version>



                <configuration>


                    <!-- imageName用于设置生成的二进制文件名称 -->
                    <imageName>${project.artifactId}</imageName>
                    <!-- mainClass用于指定main方法类路径 -->
                    <mainClass>com.lang.Application</mainClass>
                    <!-- native image 编译参数文档:https://docs.oracle.com/en/graalvm/enterprise/20/docs/reference-manual/native-image/NativeImageMavenPlugin/ -->



                    <buildArgs>
                        --no-fallback

                        --initialize-at-build-time=org.apache.log4j.PatternLayout
                        --initialize-at-build-time=org.apache.log4j.Layout

                        --initialize-at-build-time=org.slf4j.MDC
                        --initialize-at-build-time=org.slf4j.LoggerFactory
                        --initialize-at-build-time=org.slf4j.impl.StaticLoggerBinder
                        --initialize-at-build-time=org.apache.log4j.helpers.Loader
                        --initialize-at-build-time=org.apache.log4j.Logger
                        --initialize-at-build-time=org.apache.log4j.helpers.LogLog
                        --initialize-at-build-time=org.apache.log4j.LogManager
                        --initialize-at-build-time=org.apache.log4j.spi.LoggingEvent
                        --initialize-at-build-time=org.slf4j.impl.Log4jLoggerFactory
                        --initialize-at-build-time=org.slf4j.impl.Log4jLoggerAdapter
                        --initialize-at-build-time=com.lang.server.handler.FarChannelHandler
                        --initialize-at-build-time=java.beans.Introspector
                        --initialize-at-build-time=com.sun.beans.introspect.ClassInfo

                        --initialize-at-run-time=io.netty.channel.epoll.Epoll
                        --initialize-at-run-time=io.netty.channel.epoll.Native
                        --initialize-at-run-time=io.netty.channel.epoll.EpollEventLoop
                        --initialize-at-run-time=io.netty.channel.epoll.EpollEventArray
                        --initialize-at-run-time=io.netty.channel.DefaultFileRegion
                        --initialize-at-run-time=io.netty.channel.kqueue.KQueueEventArray
                        --initialize-at-run-time=io.netty.channel.kqueue.KQueveEventLoop
                        --initialize-at-run-time=io.netty.channel.kqueue.Native
                        --initialize-at-run-time=io.netty.channel.unix.Errors
                        --initialize-at-run-time=io.netty.channel.unix.1ovArray
                        --initialize-at-run-time=io.netty.channel.unix.Limits
                        --initialize-at-run-time=io.netty.util.internal.logging.Log4JLogger
                        --initialize-at-run-time=io.netty.channel.unix.Socket
                        --initialize-at-run-time=io.netty.channel.ChannelHandlerMask

                        --report-unsupported-elements-at-runtime
                        --allow-incomplete-classpath
                        --enable-url-protocols=http
                        -H:+ReportExceptionStackTraces
                        -H:EnableURLProtocols=http
                        -H:EnableURLProtocols=https
<!--                        -H:ReflectionConfigurationFiles=E:\AAAA_CODE\new-eclipse-workspace\native-netty-log4j\reflect-config.json-->

                        <!--                        新增-->

                        <!--trace 表示编译时 进行 跟踪,有些情况下可能会报错,比如在这里设置了A类,但是A类没有MAIN方法 会导致报错-->
<!--                        -trace-class-initialization=org.apache.log4j.PatternLayout-->
                        --trace-class-initialization=org.apache.log4j.Layout
                        --trace-class-initialization=java.beans.Introspector
                        --trace-class-initialization=com.sun.beans.introspect.ClassInfo

                        -Dio.netty.tryReflectionSetAccessible=true

                        --add-exports=java.base/java.nio=ALL-UNNAMED

                        --add-opens java.base/java.nio=ALL-UNNAMED
<!--                        -language:js-->


                    </buildArgs>



                </configuration>


                <executions>
                    <execution>
                        <goals>
                            <goal>native-image</goal>
                        </goals>
                        <phase>package</phase>
                    </execution>
                </executions>
            </plugin>

            <plugin>
                <groupId>org.codehaus.mojo</groupId>
                <artifactId>exec-maven-plugin</artifactId>
                <version>3.0.0</version>
                <executions>
                    <execution>
                        <id>java-agent</id>
                        <goals>
                            <goal>exec</goal>
                        </goals>
                        <configuration>
                            <executable>java</executable>
                            <workingDirectory>${project.build.directory}</workingDirectory>
                            <arguments>
                                <argument>-classpath</argument>
                                <classpath/>
                                <argument>com.lang.Application</argument>
                            </arguments>
                        </configuration>

                    </execution>
                </executions>
            </plugin>

        </plugins>
    </build>
</project>

上面注释掉的plug是用于生成jar的,所以生成jar时,需要把下面编译原生的plug注释掉,把生成jar的plug放开

直接idea上点击maven packeage 生成jar包

生成反射配置文件(注意配置好javahome和graavm)

不需要使用ms的控制台编译工具
./java -agentlib:native-image-agent=config-output-dir=E:\AAAA_CODE\new-eclipse-workspace\native-netty-log4j\conf -jar E:\AAAA_CODE\new-eclipse-workspace\native-netty-log4j\target\native-image-js.jar

maven项目中增加反射文件

在reource目录下增加META-INF/native-image 目录,将之前conf下的所有文件复制到此处

生成二进制

先把pom中生成jar的plug注释掉,打开生成二进制的plug
使用ms编译工具进入到项目根目录

执行 mvn -Pnative clean package

注意:由于程序没有写死循环,所以执行完就退出控制台,可以先开一个控制台,再把exe拖到这个控制台执行就行了,否则你需要在程序中写个死循环,防止程序执行完就关掉

执行mvn -Pnative clean package 遇到的问题

--initialize-at-build-time=java.beans.Introspector

--initialize-at-build-time 是指,在编译时 需要找这样的类,你只需要加到pom中即可

标签:netty,java,--,maven,build,time,initialize,org,graalvm
来源: https://www.cnblogs.com/cfas/p/16339789.html