mat工具MemoryAnalyzer进行分析java内存溢出hprof文件

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java服务端程序报错后会生成hprof文件，我们可以通过mat工具MemoryAnalyzer进行分析
下载地址：

http://www.eclipse.org/mat/downloads.php

说明：
查看HPROF快照
　　JProfiler能打开用JVM工具（比如jconsole、 jmap或通过-XX:+HeapDumpOnOutOfMemoryError JVM参数触发）创建的HPROF快照文件

示例：

#!/bin/bashLANG="zh_CN.UTF-8"APP_HOME=$(echo `pwd` | sed 's/bin//')APPPIDFILE=$APP_HOME/app.pidcase $1 instart)    echo  "Starting server... "    HEAP_MEMORY=512m    PERM_MEMORY=64m    JMX_PORT=8888    JMX_HOST=1.1.1.1    JAVA_OPTS="-server -Djava.nio.channels.spi.SelectorProvider=sun.nio.ch.EPollSelectorProvider -XX:+HeapDumpOnOutOfMemoryError -Dcom.sun.management.jmxremote.authenticate=false -Dcom.sun.management.jmxremote.ssl=false "    shift    ARGS=($*)    for ((i=0; i<${#ARGS[@]}; i++)); do        case "${ARGS[$i]}" in        -D*)    JAVA_OPTS="${JAVA_OPTS} ${ARGS[$i]}" ;;        -Heap*) HEAP_MEMORY="${ARGS[$i+1]}" ;;        -Perm*) PERM_MEMORY="${ARGS[$i+1]}" ;;        -JmxPort*)  JMX_PORT="${ARGS[$i+1]}" ;;        -JmxHost*)  JMX_HOST = "${ARGS[$i+1]}" ;;        esac    done    JAVA_OPTS="${JAVA_OPTS} -Xms${HEAP_MEMORY} -Xmx${HEAP_MEMORY} -XX:PermSize=${PERM_MEMORY} -XX:MaxPermSize=${PERM_MEMORY} -Dcom.sun.management.jmxremote.port=${JMX_PORT} -Djava.rmi.server.hostname=${JMX_HOST} -Dapp.home=${APP_HOME}"    echo "start jvm args ${JAVA_OPTS}"    nohup java -classpath .:./aa-media-2.0.0.jar:$CLASSPATH $JAVA_OPTS com.aaa.media.aaaMediaServer&     echo $! > $APPPIDFILE    echo STARTED    ;;stop)    echo "Stopping server ... "    if [ ! -f $APPPIDFILE ]    then        echo "error: count not find file $APPPIDFILE"        exit 1    else        kill -15 $(cat $APPPIDFILE)        rm $APPPIDFILE        echo STOPPED    fi    ;;*)    echo "Please enter start|stop ... "    ;;esacexit 0

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