windowspython守护进程

# 根据pid进行守护，先保存一个pid
import time
import os
class Demo:

def __init__(self):
pass

def setpid(self): # 记录进程号PID
fo = open("pid.txt", "w")
pid = str(os.getpid())
print("pid", pid)
fo.write(pid)
fo.flush()
fo.close()
return pid

def execute(self):
pid = self.setpid()
print("启动程序，进程号：" + str(pid))
i = 1
while True:
print("pid = " + pid + " ---------- run " + str(i) + " s ")
time.sleep(1)
i += 1
if i > 10:
break
print("程序关闭...")
if __name__ == '__main__':
demo = Demo()
demo.execute()

#读取pid再进行判断
import psutil
import os
class Monitor:
pidNotHandle = []

def __init__(self):
self.pidNotHandle = list(psutil.process_iter()) # 获取当前计算机的pid

def getpid(self): # 获取进程号PID
fo = open("pid_.txt", "r")
result = fo.read()
fo.flush()
fo.close()
return result

def execute(self):
pid = []
for each in self.pidNotHandle:
a = str(each) # each 是 class类型，可用type(each)查看类型
# a 数据样式为：psutil.Process(pid=0, name='System Idle Process')
pid.append(a[15:-1]) # 只取括号内部分；pid=0, name='System Idle Process'

status = 0 # 被监控程序进程存在状态，0不存在，1存在
for each in pid:
nameposition = each.find("name") # 获取name的位置；name='System Idle Process'
namevalue = each[nameposition + 6:-1] # 获取name值；System Idle Process
pidposition = each.find("pid")
pidvalue = each[pidposition + 4:nameposition - 2]
print("name=" + namevalue + ", pid=" + pidvalue + "\n")

if pidvalue == self.getpid():
status = 1
print("发现进程==============name=" + namevalue + ", pid=" + pidvalue + "\n")
break

if status == 0: # 进程不存在，重新启动程序
cmd = r"python test1.py"
print(cmd)
res = os.popen(cmd)
print(res)
print("重启程序.............")

print("ending.............")
return 0
if __name__ == '__main__':
Monitor().execute()

# 如果是打包成exe的程序
import time
import sys
import psutil
import os
class MonitorServer:
pidNotHandle = []
servername = "jira_Scheduler.exe"
def __init__(self):
self.pidNotHandle = list(psutil.process_iter())
def execute(self):
pid = []
for each in self.pidNotHandle:
a = str(each)
pid.append(a[15:-1])
status = 0
for each in pid:
nameposition = each.find("name")
namevalue = each[nameposition + 6:-1].split(',')[0].replace("'","")
pidposition = each.find("pid")
pidvalue = each[pidposition + 4:nameposition - 2]
print("name=" + namevalue + ", pid=" + pidvalue + "\n")
if namevalue == self.servername:
status = 1
print("发现进程==============name=" + namevalue + ", pid=" + pidvalue + "\n")
break
if status == 0:
　　　　　　　#如果需要重新调用exe程序，此处为在同一个路径下，且将此程序也打包为exe程序时，需要切换真实的工作路径
　　　　　　　#如果此程序不打包，拼接此时的运行路径即可

print(os.path.join(os.path.dirname(os.path.realpath(sys.executable)), self.servername))
cmd = os.path.join(os.path.dirname(os.path.realpath(sys.executable)), self.servername)
print(cmd)
os.popen(cmd)
time.sleep(5)
print("重启程序.............")
print("ending.............")
return 0
if __name__ == '__main__':
MonitorServer().execute()