问题描述
我尝试以下一种方式配置加载时编织(用于使用Perf4J进行分析):
I tried to configure load-time weaving (for doing profiling with Perf4J) in the next way:
1)我添加了 aop。 xml
到 META-INF
文件夹。部署时,META-INF放置在工件根目录中(即 MyAppDeployed / META-INF
)。
1) I added aop.xml
to META-INF
folder. When deployed, META-INF is placed in the artifact root directory (i.e. MyAppDeployed/META-INF
).
2)我把 aspectjrt-1.6.1.jar
, aspectjweaver-1.6.1.jar
, commons-jexl-1.1.jar
, commons-logging.jar
到 Tomcat / lib
文件夹(起初我试过 MyAppDeployed / WEB-INF / libs
但它也没有用。)
2) I put aspectjrt-1.6.1.jar
, aspectjweaver-1.6.1.jar
, commons-jexl-1.1.jar
, commons-logging.jar
to the Tomcat/lib
folder (at first I tried MyAppDeployed/WEB-INF/libs
but it also didn't work).
3)我在VM选项中添加了 -javaagent:C:\ apache-tomcat-6.0.33 \lib \ aspectjweaver-1.6.1.jar
启动Tomcat。
3) I added -javaagent:C:\apache-tomcat-6.0.33\lib\aspectjweaver-1.6.1.jar
to VM options when starting Tomcat.
4)我的 aop.xml
:
<!DOCTYPE aspectj PUBLIC "-//AspectJ//DTD//EN" "http://www.eclipse.org/aspectj/dtd/aspectj.dtd">
<aspectj>
<aspects>
<aspect name="org.perf4j.log4j.aop.TimingAspect"/>
</aspects>
<weaver options="-verbose -showWeaveInfo">
<include within="com.mypackages.MyClass"/>
</weaver>
</aspectj>
我没有看到任何迹象表明发生了加载时编织。既没有错误报告也没有必要的结果。我唯一的错误消息是:
I don't see any signs that load-time weaving happens. Neither error-reports nor necessary results. The only error message I have is:
Error occurred during initialization of VM
agent library failed to init: instrument
Error opening zip file: C:\apache-tomcat-6.0.33\lib\wrong-jar.jar
在我指定javaagent参数时在 aspectjweaver-1.6.1.jar
名称中出错时的情况。如果写得正确 - 不会打印错误信息。
in a case when I do a mistake in a aspectjweaver-1.6.1.jar
name when specify a javaagent parameter. If it's written correctly - no error messages are printed.
任何想法,我做错了什么?
Any ideas, what am I doing wrong?
P.S。我使用Java 5,我尝试使用 1.5.4
版本的aspectj完全相同的结果。
P.S. I use Java 5, and I tried the same things with 1.5.4
version of the aspectj with exactly the same results.
推荐答案
我试图在Tomcat中解决同样的问题。除了-javaagent选项之外,还需要确保aop.xml必须位于WEB-INF / classes / META-INF目录下。这对我来说有所不同。
I was trying to solve the same issue in Tomcat. In addition to -javaagent option, you need to make sure the aop.xml must be under the WEB-INF/classes/META-INF dir. This made the difference for me.
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