前言
本篇和大家分享的是使用python简化对jar包操作命令,封装成简短关键字或词,达到操作简便的目的。最近在回顾和构思shell脚本工具,后面一些文章应该会分享shell内容,希望大家继续关注。
- 获取磁盘中jar启动包
- 获取某个程序进程pid
- 自定义jar操作命令
获取磁盘中jar启动包
这一步骤主要扫描指定磁盘中待启动的jar包,然后获取其路径,方便后面操作java命令:
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#获取磁盘中jar启动包
def find_file_bypath(strDir):
filelist = os.listdir(strDir)
for file in filelist:
if os.path.isdir(strDir + "/" + file ):
find_file_bypath(strDir + "/" + file )
else :
if ( file .find( ".jar" ) > = 0 ):
fileInfo = MoFileInfo( file ,strDir + "/" + file )
all_list.append(fileInfo)
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这个递归获取路径就不多说了,可以参考前一篇文章
获取某个程序进程pid
在linux中获取某个程序pid并打印出来通常的命令是:
1 ps -ef | grep 程序名字
在py工具中同样用到了grep命令,通过执行linux命令获取相对应的pid值:
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#获取pid
def get_pid(name):
child = subprocess.Popen([ 'pgrep' , '-f' , name], stdout = subprocess.PIPE, shell = False )
response = child.communicate()[ 0 ]
print (response)
return response
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这里直接取的第一个值,因为上面第一节已经能够定位到程序jar包的名字,所以获取pid很容易
自定义jar操作命令
自定义其实就是用我们随便定义的单词或关键字来代替jar包操作命令,这里我封装了有5种,分别如下:
- nr:nohup java -jar {} 2>&1 &
- r:java -jar {}
- k:kill -9 {}
- d:rm -rf {}
- kd:kill -9 {}
{}代表的是pid和jar包全路径,相关代码:
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#执行命令
def exec_file(index):
try :
if (index < = - 1 ):
pass
else :
fileInfo = all_list[ int (index)]
print ( "你选择的是:{}" . format (fileInfo.path))
strcmd = raw_input ( "请输入执行命令(nr:nohup启动java r:java启动 k:kill d:删除java包 kd:kill+删除jar包):\r\n" )
if (strcmd = = "nr" ):
os.system( "nohup java -jar {} 2>&1 & " . format (fileInfo.path))
elif (strcmd = = "r" ):
os.system( "java -jar {}" . format (fileInfo.path))
elif (strcmd = = "k" ):
pid = get_pid(fileInfo.name)
print ( "pid:" + pid)
strcmd_1 = "kill -9 {}" . format (pid)
exec_cmd(strcmd_1)
elif (strcmd = = "d" ):
strcmd_1 = "rm -rf {}" . format (fileInfo.path)
exec_cmd(strcmd_1)
elif (strcmd = = "kd" ):
pid = get_pid(fileInfo.name)
strcmd_1 = "kill -9 {}" . format (pid)
exec_cmd(strcmd_1)
strcmd_1 = "rm -rf {}" . format (fileInfo.path)
exec_cmd(strcmd_1)
else :
print ( "无任何操作" )
except :
print ( "操作失败" )
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这里python操作linux命令用到的方式是os.system(command)
,这样已定保证了linux命令执行成功后才继续下一步的操作;下面是本次分享内容的全部代码:
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#!/usr/bin/python
#coding=utf-8
import os
import subprocess
from subprocess import check_output
all_list = []
class MoFileInfo:
def __init__( self ,name,path):
self .name = name
self .path = path
#获取磁盘中jar启动包
def find_file_bypath(strDir):
filelist = os.listdir(strDir)
for file in filelist:
if os.path.isdir(strDir + "/" + file ):
find_file_bypath(strDir + "/" + file )
else :
if ( file .find( ".jar" ) > = 0 ):
fileInfo = MoFileInfo( file ,strDir + "/" + file )
all_list.append(fileInfo)
def show_list_file():
for index,x in enumerate (all_list):
print ( "{}. {}" . format (index,x.name))
#获取pid
def get_pid(name):
child = subprocess.Popen([ 'pgrep' , '-f' , name], stdout = subprocess.PIPE, shell = False )
response = child.communicate()[ 0 ]
print (response)
return response
#执行命令
def exec_file(index):
try :
if (index < = - 1 ):
pass
else :
fileInfo = all_list[ int (index)]
print ( "你选择的是:{}" . format (fileInfo.path))
strcmd = raw_input ( "请输入执行命令(nr:nohup启动java r:java启动 k:kill d:删除java包 kd:kill+删除jar包):\r\n" )
if (strcmd = = "nr" ):
os.system( "nohup java -jar {} 2>&1 & " . format (fileInfo.path))
elif (strcmd = = "r" ):
os.system( "java -jar {}" . format (fileInfo.path))
elif (strcmd = = "k" ):
pid = get_pid(fileInfo.name)
print ( "pid:" + pid)
strcmd_1 = "kill -9 {}" . format (pid)
exec_cmd(strcmd_1)
elif (strcmd = = "d" ):
strcmd_1 = "rm -rf {}" . format (fileInfo.path)
exec_cmd(strcmd_1)
elif (strcmd = = "kd" ):
pid = get_pid(fileInfo.name)
strcmd_1 = "kill -9 {}" . format (pid)
exec_cmd(strcmd_1)
strcmd_1 = "rm -rf {}" . format (fileInfo.path)
exec_cmd(strcmd_1)
else :
print ( "无任何操作" )
except :
print ( "操作失败" )
def exec_cmd(strcmd):
str = raw_input ( "是否执行命令(y/n):" + strcmd + "\r\n" )
if ( str = = "y" ):
os.system(strcmd)
strDir = raw_input ( "请输入jar所在磁盘路径(默认:/root/job):\r\n" )
strDir = strDir if ( len (strDir) > 0 ) else "/root/job"
#获取运行包
find_file_bypath(strDir)
#展示运行包
show_list_file()
#选择运行包
strIndex = raw_input ( "请选择要运行的编号:\r\n" )
#执行命令
exec_file(strIndex)
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总结
以上就是这篇文章的全部内容了,希望本文的内容对大家的学习或者工作具有一定的参考学习价值,如果有疑问大家可以留言交流,谢谢大家对服务器之家的支持。
原文链接:https://www.cnblogs.com/wangrudong003/p/10423548.html