代码优化

whyclj

2020-10-23 291d27a34b52911dbcfd8232f0685d34b0fc96a8

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package com.dev.ftpbackup; 
 
import java.io.File; 
import java.util.Date; 
import com.base.Com; 
import com.config.AppConfig; 
 
/** 
 * ftpÏÂÔØÊý¾ÝÖÜÆÚÔݶ¨Îª2Сʱ;±£´æʱ¼äΪ6¸öÔ 
 * @author LiJun 
 * 
 */ 
public class FTPFileBackUp_Thread implements Runnable{     
    public static final int BACKUP_CYCLE_MIN = 60*60*2;            //×î¶Ì±¸·ÝÖÜÆÚ¡¾2¸öСʱ¡¿ 
    public static final int BACKUP_KEEP_MAX = 60*60*24*30*6;    //±£Áô×î¾Ãʱ³¤¡¾180Ìì¡¿ 
     
    public static final String BACKUP_FILEPATH = System.getProperty("user.dir") + File.separator + "ftpbackup/"; 
    public AppConfig appCfg; 
     
    public FTPFileBackUp_Thread(AppConfig appCfg) { 
        this.appCfg = appCfg; 
    } 
     
    @Override 
    public void run() { 
        System.out.println(BACKUP_FILEPATH); 
         
        System.out.println("FTPFileBackUp_Thread start at " + Com.getDateTimeFormat(new Date(), Com.DTF_YMDhms)); 
        Date lastdate = new Date(2000,1,1);                        //ÉÏÒ»´Î±¸·Ý³É¹¦Ê±¼ä 
        Date now = null; 
        FTPFileUpdateDown ftp = null; 
        while(true) { 
            try { 
                now = new Date(); 
                long timelong = Math.abs((now.getTime()-lastdate.getTime())/1000); 
                if(timelong >= 60*60*2) { 
                    boolean isSuccess = false; 
                    ftp = new FTPFileUpdateDown(appCfg.getEquie_device_ftp_ip(),appCfg.getEquie_device_ftp_port(),appCfg.getEquie_device_ftp_username(),appCfg.getEquie_device_ftp_password()); 
                    if(ftp.ftpLogin()) { 
                        //ÏÂÔر¸·ÝÎļþ¼Ð1   
                        if(ftp.downLoadDirectory(BACKUP_FILEPATH,appCfg.getEquie_device_ftpbackup_file_path1())) {                             
                            isSuccess = true; 
                        } 
                        //ÏÂÔر¸·ÝÎļþ¼Ð2   
                        if(ftp.downLoadDirectory(BACKUP_FILEPATH,appCfg.getEquie_device_ftpbackup_file_path2())) {                             
                            isSuccess = true; 
                        } 
                        if(isSuccess) { 
                            lastdate = now; 
                        } 
                        ftp.ftpLogOut();                          
                    } 
                }         
                //°ÑҪɾ³ýµÄÎļþ°ü×°³ÉÎļþ 
                File file = new File(BACKUP_FILEPATH); 
                if(file.exists()) {   //Îļþ»òÎļþ¼ÐÊÇ·ñ´æÔÚ 
                    if(file.isDirectory()) {   //ÅжÏÊÇ·ñÊÇĿ¼ 
                        info(file); 
                    } 
                } 
                Thread.sleep(2000); 
            } catch (Exception e) { 
                e.printStackTrace(); 
            } 
        } 
    } 
     
    //¶¨Ê±É¾³ý³¬¹ý180ÌìµÄÎļþºÍÎļþ¼Ð 
    public static void info(File file) { 
        //»ñµÃÎļþÀïÃæËùÓеÄÎļþ¼°Îļþ¼Ð 
        File[] files = file.listFiles(); 
        for(File f : files) { 
            //»ñµÃ¾ø¶Ô·¾¶ÏµÄÎļþ¼°Îļþ¼Ð 
            File absFile = f.getAbsoluteFile(); 
            long currTime = System.currentTimeMillis();   //µ±Ç°Ê±¼ä 
            long lastTime = absFile.lastModified();     //Îļþ±»×îºóÒ»´ÎÐ޸ĵÄʱ¼ä 
            //ʱ¼ä²î 
            long diffen = (currTime - lastTime)/1000; 
            //System.out.println(diffen); 
            //ɾ³ýÐÞ¸Äʱ¼ä³¬¹ý180ÌìµÄÎļþºÍÎļþ¼Ð 
            if(diffen >= BACKUP_KEEP_MAX) { 
                absFile.delete(); 
                if(absFile.isDirectory()) { 
                    info(absFile); 
                    absFile.delete(); 
                } 
            } 
        } 
    } 
}