Spring 的 LoadTimeWeaver 代理未启动
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Spring's LoadTimeWeaver Agent not starting up
提问by Conner McNamara
I'm attempting to implement Load time weaving using Spring and AspectJ. To the best of my knowledge I have everything configured properly but I keep getting the error when I try to run my integration tests:
我正在尝试使用 Spring 和 AspectJ 实现加载时间编织。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，我不断收到错误消息：
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.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.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.run(ParentRunner.java:193)
at org.junit.runners.ParentRunner.schedule(ParentRunner.java:52)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191)
at org.junit.runners.ParentRunner.access<context:load-time-weaver/>
0(ParentRunner.java:42)
at org.junit.runners.ParentRunner.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.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$AppClassLoader] does NOT provide an 'addTransformer(ClassFileTransformer)' method. Specify a custom LoadTimeWeaver or start your Java virtual machine with Spring's agent: -javaagent:org.springframework.instrument.jar
at org.springframework.context.weaving.DefaultContextLoadTimeWeaver.setBeanClassLoader(DefaultContextLoadTimeWeaver.java:83)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeAwareMethods(AbstractAutowireCapableBeanFactory.java:1436)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1408)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:519)
... 46 more
My application context contains:
我的应用程序上下文包含：
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-aspects</artifactId>
<version>${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>
And my pom contains:
我的 pom 包含：
@Bean
public InstrumentationLoadTimeWeaver loadTimeWeaver() throws Throwable {
InstrumentationLoadTimeWeaver loadTimeWeaver = new InstrumentationLoadTimeWeaver();
return loadTimeWeaver;
}
It appears as if it can't figure out to load the spring-agent but I can't seem to figure out the reason for this. Thanks in advance for your help.
似乎无法弄清楚加载弹簧代理，但我似乎无法弄清楚原因。在此先感谢您的帮助。
回答by Vikram Palakurthi
Try declaring an InstrumentationLoadTimeWeaver bean instead of explicitly using -javaagent:/path/to/org.springframework.instrument-{version}.jar. As per the documentation
尝试声明一个 InstrumentationLoadTimeWeaver bean，而不是显式使用 -javaagent:/path/to/org.springframework.instrument-{version}.jar。根据文档
To use it, you must start the virtual machine with the Spring agent, by supplying the following JVM options:
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
-javaagent:/path/to/org.springframework.instrument-{version}.jar
Note that this requires modification of the VM launch script which may prevent you from using this in application server environments (depending on your operation policies). Additionally, the JDK agent will instrument the entire VM which can prove expensive.
请注意，这需要修改 VM 启动脚本，这可能会阻止您在应用程序服务器环境中使用它（取决于您的操作策略）。此外，JDK 代理将检测整个 VM，这可能会很昂贵。
I am hoping doing the way below would be better I guess.
我希望按照下面的方式做会更好，我猜。
<dependency>
<groupId>de.invesdwin</groupId>
<artifactId>invesdwin-instrument</artifactId>
<version>1.0.2</version>
</dependency>
The same can be done in xmlconfiguration.
同样可以在xml配置中完成。
Found a new librarythat just solves to dynamically setup spring InstrumentationLoadTimeWeaver to enable support for aspects without having to start the JVM with an explicit java agent
找到了一个新库，它只是解决动态设置 spring InstrumentationLoadTimeWeaver 以启用对方面的支持，而无需使用显式 java 代理启动 JVM
@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
}
}
Spring boot config
春季启动配置
-javaagent:C:\Users\YourName\.m2\repository\org\aspectj\aspectjweaver.6.10.RC1\aspectjweaver-1.6.10.RC1.jar
回答by vsingh
Add this to your VM arguments in STS or eclipse -javaagent:C:\\spring-instrument.jar
将此添加到 STS 或 eclipse -javaagent:C:\\spring-instrument.jar 中的 VM 参数
回答by Chuck Knowles
adding the jar file to the VM Arg's in the Launch Configuration did the trick for me as the previous poster stated. in STS 3.6.3, Run -> Run Configurations -> MyTcServerEntry -> Arguments tab then add in the jar. my example was: -javaagent:"D:\sts-3.6.3\sts-bundle\tcServer-2.6.5\myApp\lib\spring-instrument-3.0.5.RELEASE.jar"
正如之前的海报所说，将 jar 文件添加到启动配置中的 VM Arg 对我来说是个技巧。在 STS 3.6.3 中，运行 -> 运行配置 -> MyTcServerEntry -> 参数选项卡，然后添加到 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"
回答by Cojones
You could try and switch to the following agent:
您可以尝试切换到以下代理：
##代码##回答by Pritam Banerjee
If you are using Tomcat try adding the following in the catalina.bash for windows or catalina.sh for linux servers:
如果您使用的是 Tomcat，请尝试在 windows 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"
set CATALINA_OPTS=%CATALINA_OPTS% -javaagent:"C:\path\to\spring-instrument-3.1.1.RELEASE.jar"
Keep in mind it will work only in Tomcat versions less than 7.0.55. After that it wont take it. And you will need to add it in the context.xml as mentioned here load-time-weaver (aspectj-weaver) is not working in apache tomcat 7.0.55.
请记住，它仅适用于低于 7.0.55 的 Tomcat 版本。在那之后它不会接受它。并且您需要将它添加到 context.xml 中，如此处所述load-time-weaver (aspectj-weaver) is not working in apache tomcat 7.0.55。
