python怎么转换jar包
利用python脚本如何简化jar操作命令前言
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) |
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 |
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" ) |
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) |
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,谢谢大家对开心学习网的支持。
原文链接:https://www.cnblogs.com/wangrudong003/p/10423548.html