最近陆续用python写了很多文件处理脚本，虽然功能都比较简单 ，但还是感觉到python对文件处理的简洁高效 ，越发觉得java的语法相当的繁琐~

接到个需求处理ftp数据接口 。所以想把python脚本也用上。java代码定时扫描ftp数据仓库 ，调用python脚本入库。

直接采用java执行系统命令的方式

@Async public void readFileByPython(List<String> filePaths) throws FileNotFoundException { URL localSrcUrl = AbstractReadFileLine.class.getResource(""); String localSrcPath = localSrcUrl.getPath(); localSrcPath = localSrcPath.substring(1, localSrcPath.length()); String pythonFile = localSrcPath + "PythonFileHandle.py"; int size = filePaths.size() + 2; String[] args = new String[size]; args[0] = "python"; args[1] = pythonFile; for(int i =0;i<filePaths.size() ;i++){ int index = i+2; args[index] = filePaths.get(i); } try { System.out.println("start"); Process proc = Runtime.getRuntime().exec(args); InputStream is = proc.getErrorStream(); InputStreamReader isr = new InputStreamReader(is); BufferedReader br = new BufferedReader(isr); String line = null; System.out.println("<ERROR>"); while((line = br.readLine())!=null){ System.out.println(line); System.out.println("</ERROR>"); int exitValue = proc.waitFor(); System.out.println("Process exitValue="+exitValue); } System.out.println("end"); } catch (Exception e){ e.printStackTrace(); } }

String[] args = new String[size];
args[0] = "python"; args[1] = pythonFile; args[0]表示要执行的是python 脚本 ，args[1] 脚本文件的全路径

该方法调用 AbstractReadFileLine.class 文件路径下的 PythonFileHandle.py 脚本 ，并传入String数组类型的参数（需要处理的文件全路径）

PythonFileHandle脚本接受java传入的文件路径参数（数组），解析并入库

PythonFileHandle.py 代码

import pymssql,time,sysreload(sys)sys.setdefaultencoding("utf-8")class MSSQL: def __init__(self,host,user,pwd,db): self.host = host self.user = user self.pwd = pwd self.db = db def __GetConnect(self): if not self.db: raise(NameError,"") self.conn = pymssql.connect(host=self.host,user=self.user,password=self.pwd,database=self.db,charset="utf8") cur = self.conn.cursor() if not cur: raise(NameError,"") else: return cur def ExecQuery(self,sql): cur = self.__GetConnect() cur.execute(sql) resList = cur.fetchall() # self.conn.close() return resList def ExecNonQuery(self,sql): cur = self.__GetConnect() cur.execute(sql) self.conn.commit() self.conn.close() def insertToCloseList(data ,ms): sql = "insert into t_isee_closelist_infos (WORK_ORDER_ID,CRM_Cdsc_Id,APPRAISE_TYPE,CRM_Accept_Date,latn_code,theme_row_id,TASK_EXECUTE_ROW_ID,CRM_Accept_REASON,ASSET_INTEG_ID) values ( '" temp ="' , '" sqlStr = temp.join(data) sql = sql + sqlStr + "')" ms.ExecNonQuery(sql) ms = MSSQL(host="172.30.0.186",user="sa",pwd="",db="test")fengefu = '$%$'for i in range(1, len(sys.argv)): read = open(sys.argv[i] ,'r') for line in read: line=line.strip('\n') data = line.split(fengefu) insertToCloseList(data,ms) read.close

sys.argv[0] 存储的是py文件自身的路径，故接受参数从sys.argv[1]开始。

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