设置调试linux下jdb远程调试tomcat源码

时间紧张，先记一笔，后续优化与完善。

在tomcat打开调试设置jvm参数

-Xrunjdwp:transport=dt_socket,server=y,address=9090,suspend=y

在linux命令行jdb连接9090端口

jdb -attach ip:9090 -sourcepath /softwares/apache-tomcat-7.0.40-src/java

设置断点

stop at org.apache.tomcat.util.IntrospectionUtils:402 stop at org.apache.tomcat.util.IntrospectionUtils:406 stop at org.apache.tomcat.util.IntrospectionUtils:408 stop at org.apache.tomcat.util.IntrospectionUtils:412

执行程序

main[1] run > Set deferred breakpoint org.apache.tomcat.util.IntrospectionUtils:412 Set deferred breakpoint org.apache.tomcat.util.IntrospectionUtils:412 Set deferred breakpoint org.apache.tomcat.util.IntrospectionUtils:408 Unable to set deferred breakpoint org.apache.tomcat.util.IntrospectionUtils:406 : No code at line 406 in org.apache.tomcat.util.IntrospectionUtils Stopping due to deferred breakpoint errors. Set deferred breakpoint org.apache.tomcat.util.IntrospectionUtils:402 Breakpoint hit: Breakpoint hit: "thread=main", org.apache.tomcat.util.IntrospectionUtils.setProperty(), line=412 bci=849 412 ExceptionUtils.handleThrowable(ie.getCause());

每日一道理
虽然你现在还只是一株稚嫩的幼苗。然而只要坚韧不拔，终会成为参天大树；虽然你现在只是涓涓细流，然而只要锲而不舍，终会拥抱大海；虽然你现在只是一只雏鹰，然而只要心存高远，跌几个跟头之后，终会占有蓝天。

打印变量

main[1] locals Method arguments: o = instance of x.x.x.JNDIRealm(id=1156) name = "connectionPassword" value = "1234" invokeSetProperty = true Local variables: setter = "setConnectionPassword" ie = instance of java.lang.reflect.InvocationTargetException(id=1160) main[1] dump ie.target ie.target = { serialVersionUID: -7034897190745766939 java.lang.Exception.serialVersionUID: -3387516993124229948 java.lang.Throwable.serialVersionUID: -3042686055658047285 java.lang.Throwable.detailMessage: "password decrypt is error!" java.lang.Throwable.cause: instance of java.lang.RuntimeException(id=1163) java.lang.Throwable.stackTrace: null }

打印变量dump信息

main[1] dump ie.target.cause ie.target.cause = { serialVersionUID: -7034897190745766939 java.lang.Exception.serialVersionUID: -3387516993124229948 java.lang.Throwable.serialVersionUID: -3042686055658047285 java.lang.Throwable.detailMessage: "get content from cyberark error" java.lang.Throwable.cause: instance of javapasswordsdk.exceptions.PSDKException(id=1165) java.lang.Throwable.stackTrace: null }

ctrl+c 退出

main[1]