Java中聚集和數組的排序方法小結。本站提示廣大學習愛好者：（Java中聚集和數組的排序方法小結）文章只能為提供參考，不一定能成為您想要的結果。以下是Java中聚集和數組的排序方法小結正文
假如CPU占用率連續到達80以上則挪用打印java線程占用率客棧的劇本，見https://github.com/oldratlee/useful-shells/blob/master/show-busy-java-threads.sh，詳細用法見他的github wiki！
#!/bin/bash
#cpu idle percent
cpu_idle=`top -b -d 1 -n 2 | grep Cpu | awk 'NR>1{print $5}' | cut -f 1 -d "."`
if [ -d "/opt/scripts/log" ]
then
cd /opt/scripts
else
mkdir /opt/scripts/log
fi
count=0
condition=true
while condition
do
if [ $cpu_idle -le 20 ]
then
pids=`top -b -d 1 -n 1 | grep java | awk '{if($9 > 80) print $1}'`
for ((a = 1; a < 10; a++))
do
for pid in $pids
doi
#involve jdk existence check later
date=`date +%Y%m%d%H%M`
sh showstack.sh -c 30 -p $pid > log/stack_$pid_$date.log
jstat -gcutil $pid > log/gc_$pid_$date.log
done
done
for pid in $pids
do
date=`date +%Y%m%d%H%M`
jmap -heap $pid > log/heap_$pid_$date.log
done
count++
cpu_idle=`top -b -d 1 -n 2 | grep Cpu | awk 'NR>1{print $5}' | cut -f 1 -d "."`
if [ $count -ge 3]
then
#send emaili
#server ip address
ip=`ifconfig eth0 | grep "inet addr" | cut -f 2 -d ":" | cut -f 1 -d " "`
condition=false
count=0
fi
else
condition=false
count=0
fi
done
以上所述就是本文給年夜家分享的全體內容了，願望年夜家可以或許愛好。
# # This example is one that forwards to a second whois server ... #.Example # get-whois 百度.com -NoForward # # Returns the partial results you get when you don't follow forwarding to a new whois server # get-whois n 128.11.5.98 -server whois.arin.net # # Does an ip lookup at arin.net #> [CmdletBinding()] param( # The query to send to WHOIS servers [Parameter(Position=0, ValueFromRemainingArguments=$true)] [string]$query, # A specific whois server to search [string]$server, # Disable forwarding to new whois servers [switch]$NoForward ) end { $TLDs = DATA { @{ ".com"= "whois.verisign-grs.com","whois.crsnic.net" ".net"= "whois.verisign-grs.com","whois.crsnic.net" ".org"= "whois.pir.org","whois.publicinterestregistry.net" ".info"= "whois.afilias.info","whois.afilias.net" ".biz"= "whois.neulevel.biz" ".us"= "whois.nic.us" ".uk"= "whois.nic.uk" ".ca"= "whois.cira.ca" ".tel"= "whois.nic.tel" ".ie"= "whois.iedr.ie","whois.domainregistry.ie" ".it"= "whois.nic.it" ".li"= "whois.nic.li" ".no"= "whois.norid.no" ".cc"= "whois.nic.cc" ".eu"= "whois.eu" ".nu"= "whois.nic.nu" ".au"= "whois.aunic.net","whois.ausregistry.net.au" ".de"= "whois.denic.de" ".ws"= "whois.worldsite.ws","whois.nic.ws","www.nic.ws" ".sc"= "whois2.afilias-grs.net" ".mobi" = "whois.dotmobiregistry.net" ".pro"= "whois.registrypro.pro","whois.registry.pro" ".edu"= "whois.educause.net","whois.crsnic.net" ".tv"= "whois.nic.tv","tvwhois.verisign-grs.com" ".travel" = "whois.nic.travel" ".name" = "whois.nic.name" ".in"= "whois.inregistry.net","whois.registry.in" ".me"= "whois.nic.me","whois.meregistry.net" ".at"= "whois.nic.at" ".be"= "whois.dns.be" ".cn"= "whois.cnnic.cn","whois.cnnic.net.cn" ".edu.cn"="whois.edu.cn" ".asia"= "whois.nic.asia" ".ru"= "whois.ripn.ru","whois.ripn.net" ".ro"= "whois.rotld.ro" ".aero" = "whois.aero" ".fr"= "whois.nic.fr" ".se"= "whois.iis.se","whois.nic-se.se","whois.nic.se" ".nl"= "whois.sidn.nl","whois.domain-registry.nl" ".nz"= "whois.srs.net.nz","whois.domainz.net.nz" ".mx"= "whois.nic.mx" ".tw"= "whois.apnic.net","whois.twnic.net.tw" ".ch"= "whois.nic.ch" ".hk"= "whois.hknic.net.hk" ".ac"= "whois.nic.ac" ".ae"= "whois.nic.ae" ".af"= "whois.nic.af" ".ag"= "whois.nic.ag" ".al"= "whois.ripe.net" ".am"= "whois.amnic.net" ".as"= "whois.nic.as" ".az"= "whois.ripe.net" ".ba"= "whois.ripe.net" ".bg"= "whois.register.bg" ".bi"= "whois.nic.bi" ".bj"= "www.nic.bj" ".br"= "whois.nic.br" ".br.com"="whois.centralnic.net" ".eu.org"="whois.eu.org" ".bt"= "whois.netnames.net" ".by"= "whois.ripe.net" ".bz"= "whois.belizenic.bz" ".cd"= "whois.nic.cd" ".ck"= "whois.nic.ck" ".cl"= "nic.cl" ".coop"= "whois.nic.coop" ".cx"= "whois.nic.cx" ".cy"= "whois.ripe.net" ".cz"= "whois.nic.cz" ".dk"= "whois.dk-hostmaster.dk" ".dm"= "whois.nic.cx" ".dz"= "whois.ripe.net" ".ee"= "whois.eenet.ee" ".eg"= "whois.ripe.net" ".es"= "whois.ripe.net" ".fi"= "whois.ficora.fi" ".fo"= "whois.ripe.net" ".gb"= "whois.ripe.net" ".ge"= "whois.ripe.net" ".gl"= "whois.ripe.net" ".gm"= "whois.ripe.net" ".gov"= "whois.nic.gov" ".gr"= "whois.ripe.net" ".gs"= "whois.adamsnames.tc" ".hm"= "whois.registry.hm" ".hn"= "whois2.afilias-grs.net" ".hr"= "whois.ripe.net" ".hu"= "whois.ripe.net" ".il"= "whois.isoc.org.il" ".int"= "whois.isi.edu" ".iq"= "vrx.net" ".ir"= "whois.nic.ir" ".is"= "whois.isnic.is" ".je"= "whois.je" ".jp"= "whois.jprs.jp" ".kg"= "whois.domain.kg" ".kr"= "whois.nic.or.kr" ".la"= "whois2.afilias-grs.net" ".lt"= "whois.domreg.lt" ".lu"= "whois.restena.lu" ".lv"= "whois.nic.lv" ".ly"= "whois.lydomains.com" ".ma"= "whois.iam.net.ma" ".mc"= "whois.ripe.net" ".md"= "whois.nic.md" ".mil"= "whois.nic.mil" ".mk"= "whois.ripe.net" ".ms"= "whois.nic.ms" ".mt"= "whois.ripe.net" ".mu"= "whois.nic.mu" ".my"= "whois.mynic.net.my" ".nf"= "whois.nic.cx" ".pl"= "whois.dns.pl" ".pr"= "whois.nic.pr" ".pt"= "whois.dns.pt" ".sa"= "saudinic.net.sa" ".sb"= "whois.nic.net.sb" ".sg"= "whois.nic.net.sg" ".sh"= "whois.nic.sh" ".si"= "whois.arnes.si" ".sk"= "whois.sk-nic.sk" ".sm"= "whois.ripe.net" ".st"= "whois.nic.st" ".su"= "whois.ripn.net" ".tc"= "whois.adamsnames.tc" ".tf"= "whois.nic.tf" ".th"= "whois.thnic.net" ".tj"= "whois.nic.tj" ".tk"= "whois.nic.tk" ".tl"= "whois.domains.tl" ".tm"= "whois.nic.tm" ".tn"= "whois.ripe.net" ".to"= "whois.tonic.to" ".tp"= "whois.domains.tl" ".tr"= "whois.nic.tr" ".ua"= "whois.ripe.net" ".uy"= "nic.uy" ".uz"= "whois.cctld.uz" ".va"= "whois.ripe.net" ".vc"= "whois2.afilias-grs.net" ".ve"= "whois.nic.ve" ".vg"= "whois.adamsnames.tc" ".yu"= "whois.ripe.net" } } $EAP, $ErrorActionPreference = $ErrorActionPreference, "Stop" $query = $query.Trim() if($query -match "(?:\d{1,3}\.){3}\d{1,3}") { Write-Verbose "IP Lookup!" if($query -notmatch " ") { $query = "n $query" } if(!$server) { $server = "whois.arin.net" } } elseif(!$server) { $server = $TLDs.GetEnumerator() | Where { $query -like ("*"+$_.name) } | Select -Expand Value | Get-Random } if(!$server) { $server = "whois.arin.net" } $maxRequery = 3 do { Write-Verbose "Connecting to $server" $client = New-Object System.Net.Sockets.TcpClient $server, 43 try { $stream = $client.GetStream() Write-Verbose "Sending Query: $query" $data = [System.Text.Encoding]::Ascii.GetBytes( $query + "`r`n" ) $stream.Write($data, 0, $data.Length) Write-Verbose "Reading Response:" $reader = New-Object System.IO.StreamReader $stream, [System.Text.Encoding]::ASCII $result = $reader.ReadToEnd() if($result -match "(?s)Whois Server:\s*(\S+)\s*") { Write-Warning "Recommended WHOIS server: ${server}" if(!$NoForward) { Write-verbose "Non-Authoritative Results:`n${result}" # cache, in case we can't get an answer at the forwarder if(!$cachedResult) { $cachedResult = $result $cachedServer = $server } $server = $matches[1] $query = ($query -split " ")[-1] $maxRequery-- } else { $maxRequery = 0 } } else { $maxRequery = 0 } } finally { if($stream) { $stream.Close() $stream.Dispose() } } } while ($maxRequery -gt 0) $result if($cachedResult -and ($result -split "`n").count -lt 5) { Write-Warning "Original Result from ${cachedServer}:" $cachedResult } $ErrorActionPreference = $EAP } }函數裡界說了三個參數，兩個[string]類型，一個[switch]類型，分離用於吸收要停止whois查詢的域名，指定whois域名辦事器，和能否許可將查詢要求轉發到其他域名解析辦事器。隨後創立了一個列舉值的哈希表，目標是用於存儲分歧域名後綴和whois辦事器的對應關系，由於分歧的域名後綴對應的域名信息是存儲在分歧的辦事器上的。須要強調的是像.com、.net、.org、.info這幾個注冊量特殊年夜的域名後綴指定了多個whois辦事器，防止查詢量過年夜沒法有用前往成果的成績。
接上去經由過程New-Object創立一個System.Net.Sockets.TcpClient的TCP對象，銜接下面指定的whois辦事器的43端口用於查詢whois信息，在經由過程一個System.IO.StreamReader對象吸收whois信息前往的數據，並對數據停止解析。除此以外再加上try{}cache{}finally{}停止容錯處置，在數據解析是也用到了正則表達式用於婚配目的字符串。
法式的運轉辦法有以下四種：
get-whois dnspod.com
先看看dnspod在被騰訊收買後有無更改whois信息，貌似鵝廠沒有悛改
get-whois jd.com –NoForward
get-whois n 128.11.5.98 -server whois.arin.net
