django中管理程序2

升级版

from os import path
TASKS_ROOT = path.dirname(path.abspath(path.dirname(__file__)))
PYTHON_ROOT = '/usr/bin/python'
job_workspace =   path.join(TASKS_ROOT,'app').replace('\', '/')
from tempfile import mkstemp
from os import fdopen,unlink,kill
from subprocess import Popen
import signal
from django.http import HttpResponse
from django.core import serializers
import psutil
def startjob(request):
    request.session.modified = True
    """Start a new long running process unless already started."""
    if not request.session.has_key('running_job'):
        request.session['running_job'] = {}

    job_name = request.GET.get('job_name')
    # print request.session['running_job']
    #
    if job_name  not in request.session['running_job']:
        job_execfile = ''
        if job_name == 'flower':
            job_execfile = " myjob.py"
        if job_name == 'worker':
            job_execfile = " myjob.py"
         
        if job_execfile:   
            # create a temporary file to save the results
            outfd,outname=mkstemp()
            # request.session['jobfile']=outname
            outfile=fdopen(outfd,'a+')
            # print job_workspace

            proc=Popen((PYTHON_ROOT + job_execfile).split(),shell=False,stdout=outfile,cwd=job_workspace)
            # remember pid to terminate the job later
            request.session['running_job'][job_name]=proc.pid
            # remember tempfile to delete the job later
            request.session['running_job'][job_name+'_tmpfile']=outname

    return JsonResponse(request.session['running_job'], safe=False) 

def showjob(request):
    """Show the last result of the running job."""
    # print request.session

    if not  request.session.has_key('running_job'):
        RUNNING_JOB_DIC = {}
        return JsonResponse(RUNNING_JOB_DIC, safe=False) 
    else:
        RUNNING_JOB_DIC = request.session['running_job']
        return JsonResponse(RUNNING_JOB_DIC, safe=False) 

def rmjob(request):
    """Terminate the runining job."""
    request.session.modified = True
    if request.session.has_key('running_job'):
        job_name = request.GET.get('job_name')
        #if the job in running dict()
        if request.session['running_job'].has_key(job_name):
            jobpid =  request.session['running_job'][job_name]
            filename = request.session['running_job'][job_name + '_tmpfile']
            print jobpid,filename
            # if the job has finished already
            if not psutil.pid_exists(jobpid):
                # make sure running_job dictionary   has delete
                #try:
                del request.session['running_job'][job_name]

                del request.session['running_job'][job_name + '_tmpfile']
                #print  request.session['running_job'] 
                return JsonResponse(request.session['running_job'], safe=False) 
            try:
                print  jobpid,filename
                kill(jobpid,signal.SIGKILL) # unix only
                unlink(filename)
            except OSError, e:
                # probably the job has finished already
                return JsonResponse({'error':'kill pid or unlink tmpfile error!'})

            del request.session['running_job'][job_name]
            del request.session['running_job'][job_name + '_tmpfile']

    return JsonResponse(request.session['running_job'], safe=False) 

前端代码：

<script src="/static/js/jquery.min.js"></script>
<script>
setInterval(function() {
    $.getJSON("/showjob/", function(json){
      console.log(json);
      if(typeof json.flower == "undefined"){
        $("#resulist tr:eq(0) td:nth-child(2)").html("stop"); 
      }
      else{
        $("#resulist tr:eq(0) td:nth-child(2)").html("running"); 
      }

      if(typeof json.localworker == "undefined"){
        $("#resulist tr:eq(1) td:nth-child(2)").html("stop"); 
      }
      else{
        $("#resulist tr:eq(1) td:nth-child(2)").html("running"); 
      }

    });
    
}, 1000);

function start_stop(myservice)
{
if (myservice === "startflower")
  {
     $.get("/startjob/?job_name=flower",function(data,status){
        $("#resulist tr:eq(0) td:nth-child(2)").html("running");   }
      );
  }
if (myservice === "stopflower")
  {
     $.get("/rmjob/?job_name=flower",function(data,status){
        $("#resulist tr:eq(0) td:nth-child(2)").html("stop"); }
      );
  }


if (myservice === "startlocalworker")
  {
     $.get("/startjob/?job_name=localworker",function(data,status){
        $("#resulist tr:eq(0) td:nth-child(2)").html("running");   }
      );
  }
if (myservice === "stoplocalworker")
  {
     $.get("/rmjob/?job_name=localworker",function(data,status){
        $("#resulist tr:eq(0) td:nth-child(2)").html("stop"); }
      );
  }

}



</script>

 
 
        <table class="table table-hover">

           
            <thead>
            <tr>
                <th>程序</th>
                <th>状态</th>
                 <th>操作</th>
              
            </tr>
            </thead>
            <tbody id="resulist">
             
                <tr>    
                <td>flower</td>
                <td>stop</td>
                <td>
                    <div class="btn-group btn-group-xs">
                      <button type="button" onclick="start_stop(this.name)"  name="startflower" class="btn btn-default">启动</button>
                      <button type="button" onclick="start_stop(this.name)"  name="stopflower"  class="btn btn-default">停止</button>
                    </div>
                 </td>
                     
                </tr>

                <tr>    
                <td>local worker </td>
                <td>running</td>
                <td>
                    <div class="btn-group btn-group-xs">
                      <button type="button" onclick="start_stop(this.name)"  name="startlocalworker" class="btn btn-default">启动</button>
                      <button type="button" onclick="start_stop(this.name)"  name="stoplocalworker"  class="btn btn-default">停止</button>
                    </div>
                 </td>
                     
                </tr>

                <tr>    
                <td>DNSLog</td>
                <td>running</td>
                <td>
                    <div class="btn-group btn-group-xs">
                      <button type="button"  onclick="start_stop(this.name)"  name="x"  class="btn btn-default">启动</button>
                      <button type="button"  onclick="start_stop(this.name)"  name="x"  class="btn btn-default">停止</button>
                    </div>
                 </td>
                     
                </tr>            </tbody>
</table>