Spring 的 LoadTimeWeaver 代理未启动

Question

我正在尝试使用 Spring 和 AspectJ 实现加载时编织。据我所知，我已经正确配置了所有内容，但是当我尝试运行集成测试时，我不断收到错误：

org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'org.springframework.context.weaving.AspectJWeavingEnabler#0': Initialization of bean failed; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'loadTimeWeaver': Initialization of bean failed; nested exception is java.lang.IllegalStateException: ClassLoader [sun.misc.Launcher$AppClassLoader] does NOT provide an 'addTransformer(ClassFileTransformer)' method. Specify a custom LoadTimeWeaver or start your Java virtual machine with Spring's agent: -javaagent:org.springframework.instrument.jar
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:527)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:456)
    at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:291)
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222)
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:288)
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:194)
    at org.springframework.context.support.AbstractApplicationContext.getBean(AbstractApplicationContext.java:1079)
    at org.springframework.context.support.AbstractApplicationContext.invokeBeanFactoryPostProcessors(AbstractApplicationContext.java:643)
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:407)
    at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:139)
    at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:83)
    at com.boku.risk.service.perisistence.PersistenceTestBase.setupBase(PersistenceTestBase.java:23)
    at com.boku.risk.service.dao.CountryLimitDaoTest.setup(CountryLimitDaoTest.java:33)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
    at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:44)
    at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
    at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41)
    at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:27)
    at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:76)
    at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:50)
    at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193)
    at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52)
    at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191)
    at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42)
    at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184)
    at org.junit.runners.ParentRunner.run(ParentRunner.java:236)
    at org.junit.runner.JUnitCore.run(JUnitCore.java:157)
    at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:71)
    at com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:199)
    at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:62)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
    at com.intellij.rt.execution.application.AppMain.main(AppMain.java:120)
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'loadTimeWeaver': Initialization of bean failed; nested exception is java.lang.IllegalStateException: ClassLoader [sun.misc.Launcher$AppClassLoader] does NOT provide an 'addTransformer(ClassFileTransformer)' method. Specify a custom LoadTimeWeaver or start your Java virtual machine with Spring's agent: -javaagent:org.springframework.instrument.jar
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:527)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:456)
    at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:291)
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222)
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:288)
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:194)
    at org.springframework.context.weaving.LoadTimeWeaverAwareProcessor.postProcessBeforeInitialization(LoadTimeWeaverAwareProcessor.java:95)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyBeanPostProcessorsBeforeInitialization(AbstractAutowireCapableBeanFactory.java:394)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1413)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:519)
    ... 37 more
Caused by: java.lang.IllegalStateException: ClassLoader [sun.misc.Launcher$AppClassLoader] does NOT provide an 'addTransformer(ClassFileTransformer)' method. Specify a custom LoadTimeWeaver or start your Java virtual machine with Spring's agent: -javaagent:org.springframework.instrument.jar
    at org.springframework.context.weaving.DefaultContextLoadTimeWeaver.setBeanClassLoader(DefaultContextLoadTimeWeaver.java:83)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeAwareMethods(AbstractAutowireCapableBeanFactory.java:1436)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1408)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:519)
    ... 46 more

我的应用程序上下文包含：

<context:load-time-weaver/>

我的 pom 包含：

<dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-aspects</artifactId>
            <version>${org.springframework.version}</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-agent</artifactId>
            <version>2.5.6</version>
            <scope>test</scope>
        </dependency>
        <dependency>
            <groupId>org.aspectj</groupId>
            <artifactId>aspectjrt</artifactId>
            <version>1.6.10</version>
        </dependency>
    ...
    <build>
        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-surefire-plugin</artifactId>
                <configuration>
                    <forkMode>always</forkMode>
                    <argLine>
                        -javaagent:${settings.localRepository}/org/springframework/spring-agent/2.5.6/spring-agent-2.5.6.jar
                    </argLine>
                </configuration>
            </plugin>
        </plugins>
    </build>

看起来好像无法加载 spring - 代理，但我似乎无法弄清楚其中的原因。预先感谢您的帮助。

Answer 1

尝试声明 InstrumentationLoadTimeWeaver bean，而不是显式使用 -javaagent:/path/to/org.springframework.instrument-{version}.jar。根据文档

要使用它，您必须通过提供以下 JVM 选项来使用 Spring 代理启动虚拟机：

-javaagent:/path/to/org.springframework.instrument-{version}.jar

请注意，这需要修改VM 启动脚本的错误可能会阻止您在应用程序服务器环境中使用此脚本（取决于您的操作策略）。此外，JDK 代理将检测整个虚拟机，这可能会很昂贵。

我希望按照下面的方式 - 这里解释 - 我想会更好。

@Bean
public InstrumentationLoadTimeWeaver loadTimeWeaver()  throws Throwable {
InstrumentationLoadTimeWeaver loadTimeWeaver = new InstrumentationLoadTimeWeaver();
return loadTimeWeaver;
}

同样可以在 xml 配置。

找到了一个新的 库，它只需动态设置 spring InstrumentationLoadTimeWeaver 即可启用对方面的支持，而无需 启动 JVM

<dependencies>
    <dependency>
        <groupId>de.invesdwin</groupId>
        <artifactId>invesdwin-instrument</artifactId>
        <version>1.0.9</version>
    </dependency>
</dependencies>

<repositories>
    <repository>
        <id>invesdwin</id>
        <url>https://invesdwin.de/artifactory/invesdwin-oss-remote</url>
        <releases>
            <enabled>true</enabled>
        </releases>
    </repository>
</repositories>

使用显式 java 代理Spring boot 配置

@SpringBootApplication
/** 
 * Make @Configurable work via @EnableLoadTimeWeaving.
 * If it does not work, alternatively you can try: 
 * @ImportResource(locations = "classpath:/META-INF/ctx.spring.weaving.xml") 
 */
@EnableLoadTimeWeaving
public class MySpringBootApplication {
    public static void main(final String[] args) {
        DynamicInstrumentationLoader.waitForInitialized(); //dynamically attach java agent to jvm if not already present
        DynamicInstrumentationLoader.initLoadTimeWeavingContext(); //weave all classes before they are loaded as beans
        SpringApplication.run(MySpringBootApplication.class, args); //start application, load some classes
    }
}

Answer 2

将其添加到 STS 或 eclipse 中的 VM 参数中
-javaagent:C:\\spring-instrument.jar

Answer 3

您可以尝试切换到以下代理：

-javaagent:C:\Users\YourName\.m2\repository\org\aspectj\aspectjweaver\1.6.10.RC1\aspectjweaver-1.6.10.RC1.jar

Answer 4

正如前面的海报所述，将 jar 文件添加到启动配置中的 VM Arg 对我来说很有效。在STS 3.6.3中，运行->运行配置-> MyTcServerEntry ->然后将 Arguments 选项卡添加到 jar 中。我的例子是： -javaagent:"D:\sts-3.6.3\sts-bundle\tcServer-2.6.5\myApp\lib\spring-instrument-3.0.5.RELEASE.jar"

Answer 5

如果您使用 Tomcat，请尝试在 Windows 服务器的 catalina.bash 或 Linux 服务器的 catalina.sh 中添加以下内容：

set CATALINA_OPTS=%CATALINA_OPTS% -javaagent:"C:\path\to\spring-instrument-3.1.1.RELEASE .jar”

请记住，它仅适用于低于 7.0.55 的 Tomcat 版本。之后就不会接受了。您需要将其添加到 context.xml 中，如此处所述 load-time-weaver (aspectj-weaver) 在 apache tomcat 7.0.55 中不起作用。