这篇文章主要介绍了python如何使用jt400.jar包代码实例,文中通过示例代码介绍的非常详细，对大家的学习或者工作具有一定的参考学习价值,需要的朋友可以参考下

代码如下

jt400helper.py

#coding=utf-8
import jpype
import os
class JT400Helper(object):
  def __init__(self, server,username,pwd):
    jvmpath=r"C:\Program Files\Java\jre1.8.0_60\bin\server\jvm.dll"
    jarpath=r'd:\temp\jt400.jar'
    jvmArg = "-Djava.class.path=%s" % jarpath
    jpype.startJVM(jvmpath,jvmArg)

    #jt400
    AS400=jpype.JClass('com.ibm.as400.access.AS400')
    CommandCall=jpype.JClass('com.ibm.as400.access.CommandCall')
    ProgramCall=jpype.JClass('com.ibm.as400.access.ProgramCall')
    SpooledFileList=jpype.JClass('com.ibm.as400.access.SpooledFileList')
    AS400Text=jpype.JClass('com.ibm.as400.access.AS400Text')
    AS400JDBCDriver=jpype.JClass('com.ibm.as400.access.AS400JDBCDriver')
    #java
    Connection=jpype.JClass('java.sql.Connection')
    DatabaseMetaData=jpype.JClass('java.sql.DatabaseMetaData')
    Statement=jpype.JClass('java.sql.Statement')
    self.ResultSet=jpype.JClass('java.sql.ResultSet')

    self.server,self.username,self.pwd = server,username,pwd
    self.RJobLog=jpype.JClass('com.ibm.as400.resource.RJobLog')
    self.AS400FTP=jpype.JClass('com.ibm.as400.access.AS400FTP')
    self.IFSFile=jpype.JClass('com.ibm.as400.access.IFSFile')
    self.ObjectDescription=jpype.JClass('com.ibm.as400.access.ObjectDescription')

    self.ProgramParameter=jpype.JClass('com.ibm.as400.access.ProgramParameter')
    self.DriverManager=jpype.JClass('java.sql.DriverManager')
    self.DriverManager.registerDriver(AS400JDBCDriver())


    self.system=AS400(server,username,pwd)
    self.cc=CommandCall(self.system)
    self.outqueue = SpooledFileList(self.system)
    self.pc = ProgramCall(self.system)

  def ShowIfs(self,ifspath):
    ifs=self.IFSFile(self.system,ifspath)
    print 'exists : ',ifs.exists()
    print 'isDirectory : ',ifs.isDirectory()
    print 'isFile : ',ifs.isFile()
    fs=ifs.listFiles()
    if len(fs)>0:
      for f in fs:
        print f.name

  def ShowObj2(self,lib,obj):
    od = self.ObjectDescription(system,lib,obj,"FILE")
    print od.CHANGE_DATE_AND_TIME

  def ShowObj(self,lib,obj,tmplib):
    cmdstr = "DSPOBJD OBJ(%s/%s) OBJTYPE(*PGM) OUTPUT(*OUTFILE) OUTFILE(%s/OBJD)" % (lib,obj,tmplib)
    msg = self.GetCmdMsg(cmdstr)
    if msg == "":
      cmdstr = "SELECT ODLBNM, ODOBNM, ODOBTP, ODOBAT,ODOBSZ , ODOBTX, ODLDAT, ODLTIM, ODOBSY, ODCRTU, ODJRST, ODJRNM, ODJRLB, ODJRIM, ODJREN,ODJRCN, ODJRDT, ODJRTI FROM %s.objd" % tmplib
      self.GetSQLResult(cmdstr)    

  def SaveFieldDef(self,flib,file,tmplib,ofile):
    cmdstr = "DSPFFD FILE(%s/%s) OUTPUT(*OUTFILE) OUTFILE(%s/FIELDDEF)" % (flib,file,tmplib)
    msg = self.GetCmdMsg(cmdstr)
    if msg == "":
      cmdstr = "SELECT WHFLDI, WHFTXT, WHFLDT, WHFLDD, WHFLDP,WHFLDB, WHFOBO FROM %s.FIELDDEF WHERE WHFLDI <> ' ' ORDER BY WHFOBO" % tmplib
      self.GetSQLResult(cmdstr,ofile)

  def SaveJobLog(self,jobstr,ofile):
    msg = self.GetJobLog(jobstr)
    with open(ofile,'w') as f:
      f.write(msg)

  def GetJobLog(self,jobstr):
    jobarr = jobstr.split('/')
    jobnum,jobuser,jobname=jobarr[0],jobarr[1],jobarr[2]
    return self.GetJobLogByNum(jobnum,jobuser,jobname)

  def GetJobLogByNum(self,jobnum,jobuser,jobname):
    joblog=self.RJobLog(self.system,jobname,jobuser,jobnum)
    joblog.open()
    joblog.waitForComplete()
    num=joblog.getListLength()
    msgs = []
    for i in range(0,num):
      qmsg=joblog.resourceAt(i)
      msgs.append(qmsg.getAttributeValue("MESSAGE_TEXT"))
    msg = '\n'.join(msgs)
    return msg


  def GetSQLResult(self,cmdstr,ofile=""):
    connection = self.DriverManager.getConnection("jdbc:as400://" + self.server, self.username, self.pwd)
    dmd = connection.getMetaData()
    select = connection.createStatement(self.ResultSet.TYPE_SCROLL_SENSITIVE,self.ResultSet.CONCUR_UPDATABLE)
    print cmdstr
    rs = select.executeQuery(cmdstr)
    strs = ""
    cols = rs.getMetaData().getColumnCount()
    while (rs.next()):
      rowstrs = []
      for i in range(1,cols+1):
        value = rs.getString(i)
        if ' ' in value:
          value = '"%s"' % value
        rowstrs.append(rs.getString(i))
      strs+=','.join(rowstrs)+'\n'
    connection.close();
    if ofile <> "":
      with open(ofile,'w') as f:
        f.write(strs)
    else:
      print strs


  def CallProgram(self,plib,pgm,paras):
    #WRKACTJOB SBS(QUSRWRK) JOB(QZRCSRVS) - dump not work
    #paras=["Y","12345","   "]  
    pgmparas=[]
    for para in paras:
      pgmparas.append(ProgramParameter(para))
      print str(pgmparas.getInputData())
    self.pc.setProgram("/QSYS.LIB/%s.LIB/%s.PGM" % (plib,pgm),pgmparas)
    successfully = self.pc.run()
    msg = ''
    job = pc.getJob()
    print pc.toString()
    print job.toString()
    if successfully <> True:
      ml=self.pc.getMessageList()
      for m in ml:
        msg += m.getText() +'\n'
      print msg
      self.system.disconnectAllServices()
    return msg

  def GetCmdMsg(self,cmdstr):
    msg = ''
    print cmdstr
    successfully = self.cc.run(cmdstr)
    if successfully <> True:
      ml=self.cc.getMessageList()
      for m in ml:
        msg += m.getText() +'\n'
      print msg
    return msg

  def CheckObjExists(self,lib,file,type="*FILE"):
    str = "CHKOBJ OBJ(%s/%s) OBJTYPE(%s)" % (lib,file,type)
    return self.GetCmdMsg(str)

  def DeleteObj(self,lib,file):  
    str = "DLTF FILE(%s/%s)" % (lib,file)
    return self.GetCmdMsg(str)


  def FileToIfs(self,lib,file,mem,ifspath):
    # don't use RMVBLANK(*TRAILING) ,will cause numeric field contains blank characters error when put ifs to file
    str = "CPYTOIMPF FROMFILE(%s/%s %s) TOSTMF('%s') MBROPT(*REPLACE) STMFCCSID(*STMF) RCDDLM(*CRLF) DTAFMT(*DLM) STRDLM(*NONE)" % (lib,file,mem,ifspath)
    print lib,file,mem,"->",ifspath
    return self.GetCmdMsg(str)

  def IfsToFile(self,ifspath,lib,file,mem):
    str = "CPYFRMIMPF FROMSTMF('%s') TOFILE(%s/%s %s) MBROPT(*REPLACE) RCDDLM(*CRLF) STRDLM(*NONE) FLDDLM(',') ERRRCDOPT(*REPLACE) RPLNULLVAL(*FLDDFT)" % (ifspath,lib,file,mem)
    print ifspath,"->",lib,file,mem
    return self.GetCmdMsg(str)

  def FileToPc(self,lib,file,mem,ofile):
    tmpifs = "QDLS/TEMP/%s.CSV" % mem
    self.FileToIfs(lib,file,mem,tmpifs)
    self.FtpGetIfsFile(tmpifs,ofile)

  def PcToFile(self,ifile,lib,file,mem):
    tmpifs = "QDLS/TEMP/%s.CSV" % mem
    self.FtpPutIfsFile(ifile,tmpifs)
    self.IfsToFile(tmpifs,lib,file,mem)


  def FtpGetIfsFile(self,ifspath,ofile):
    ftp=self.AS400FTP(self.system)
    successfully = ftp.get(ifspath,ofile)
    print ifspath,"->",ofile
    return successfully

  def FtpGetText(self,lib,srcf,mem,dest=r"d:\temp"):
    ftp=self.AS400FTP(self.system)
    target="/QSYS.LIB/%s.LIB/%s.FILE/%s.MBR" % (lib,srcf,mem)
    if os.path.isdir(dest):
      dest=os.path.join(dest,mem+".txt")
    print target,"->",dest
    successfully = ftp.get(target,dest)
    return successfully

  def FtpGetSavf(self,lib,savf,dest=r"d:\temp"):
    ftp=self.AS400FTP(self.system)
    target="/QSYS.LIB/%s.LIB/%s.SAVF" % (lib,savf)
    # QUOTE SITE NAMEFMT 0 QGPL/QCLSRC.TEST
    # QUOTE SITE NAMEFMT 1 /QSYS.lib/Libname.lib/Fname.file/Mname.mbr
    ftp.issueCommand("quote site namefmt 1")
    if os.path.isdir(dest):
      dest=os.path.join(dest,savf+".SAVF")
    # can not get it if not set data transfer type
    ftp.setDataTransferType(1)
    successfully = ftp.get(target,dest)
    return successfully


  def FtpPutIfsFile(self,ifile,ifspath):
    ftp=self.AS400FTP(self.system)
    successfully = ftp.put(ifile,ifspath)
    print ifile,"->",ifspath
    return successfully

  def FtpPutText(self,ifile,lib,srcf,mem):
    ftp=self.AS400FTP(self.system)
    dest="/QSYS.LIB/%s.LIB/%s.FILE/%s.MBR" % (lib,srcf,mem)
    successfully = ftp.put(ifile,dest)
    print ifile,"->",lib,srcf,mem
    return successfully

  def GetOutQList(self,outqlib,outq):
    print "OutQueue : %s/%s" % (outqlib,outq)
    self.outqueue.setQueueFilter("/QSYS.LIB/%s.LIB/%s.OUTQ" % (outqlib,outq))
    self.outqueue.setUserFilter("*ALL")
    self.outqueue.openSynchronously()
    enums=self.outqueue.getObjects()
    i = 1
    info = ""
    while (enums.hasMoreElements()):
      splf=enums.nextElement()
      if(splf<>None):
        strs=[]
        strs.append("System :%s , File : %s , File Number : %s , Progarm :%s , Date : %s" % (splf.getStringAttribute(271),splf.getStringAttribute(104),splf.getIntegerAttribute(105).toString(),splf.getStringAttribute(272),splf.getStringAttribute(34)))
        strs.append("Number/User/Job : %s/%s/%s" % (splf.getStringAttribute(60),splf.getStringAttribute(62),splf.getStringAttribute(59)))
        strs.append("File Pages: %s , Print quality : %s , Printer device type : %s , Page size length : %d " % (splf.getIntegerAttribute(111).toString(),splf.getStringAttribute(48),splf.getStringAttribute(90),splf.getFloatAttribute(78).intValue()))
        info += '\n'.join(strs)+'\n'
        i+=1
    self.system.disconnectAllServices()
    print "total spool files : ",i
    print info

  def GetSpoolFile(self,sflib,sffile,sfname,sfjobnum,fnum,dest):
    if self.CheckObjExists(sflib,sffile)<>"":
      # IGCDTA parameter is for DBCS file
      self.GetCmdMsg("CRTPF FILE(%s/%s) RCDLEN(160) IGCDTA(*YES)" % (sflib,sffile))
    str = "CPYSPLF FILE(%s) TOFILE(%s/%s) JOB(%s) SPLNBR(%d)" % (sfname,sflib,sffile,sfjobnum,fnum)
    msg = self.GetCmdMsg(str)
    if msg == "":
      self.FtpGetText(sflib,sffile,sffile,dest)
      print "download successfully!"
    def PutMsg(self,qlib,qname,msg):    qstr = "/QSYS.LIB/%s.LIB/%s.DTAQ" % (qlib,qname)    dataqueue=self.DataQueue(self.system,qstr)    dataqueue.write(msg)      def GetMsg(self,qlib,qname):    qstr = "/QSYS.LIB/%s.LIB/%s.DTAQ" % (qlib,qname)    dataqueue=self.DataQueue(self.system,qstr)    dqdata = dataqueue.read()    dqdatastr = 'No data'    if dqdata <> None:      dqdatastr = dqdata.getString()    print dqdatastr    return dqdatastr

if __name__ == '__main__':
  pass

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持python博客。