dump总结

•http://blog.csdn.net/lkforce/article/details/60878295

•日志文件生成

•方法1

•jmap -dump:format=b,file=20170307.dump 16048

•方法2

•-Xms128m -Xmx128m -XX:+HeapDumpOnOutOfMemoryError

“16048”--pid

pid查看方式：jsp     sp