backup.java

云网论坛CWBBS 源码,内容丰富,学习,参考,教学的好资料,具体见内说明,

package cn.js.fan.util;

import java.io.*;
import cn.js.fan.util.file.*;
import cn.js.fan.db.*;

public class Backup {
  public Backup() {
  }

  public static void copyDirectory(String filedes, String filesrc) throws
      IOException {
    (new File(filedes)).mkdirs();
    File[] file = (new File(filesrc)).listFiles();
    if (file==null) // 如果filesrc不存在则file为null
        return;
    for (int i = 0; i < file.length; i++) {
      if (file[i].isFile()) {
        FileInputStream input = new FileInputStream(file[i]);
        FileOutputStream output = new FileOutputStream(filedes + "/" +
            file[i].getName());
        byte[] b = new byte[1024 * 5];
        int len;
        while ( (len = input.read(b)) != -1) {
          output.write(b, 0, len);
        }
        output.flush();
        output.close();
        input.close();
      }
      if (file[i].isDirectory()) {
        copyDirectory(filedes + "/" + file[i].getName(),
                       filesrc+ "/" + file[i].getName());
      }
    }
  }

  public void generateZipFile(String srcpath, String zipfilepath) throws IOException  {
      Compress cps = new Compress();
      cps.zipDirectory(srcpath, zipfilepath);
  }

  public boolean BackupDB(String dbName, String poolName, String dbfile) {
      // MS SQL SERVER 备份
      String sql = "BACKUP DATABASE " + dbName + " TO DISK = '" +
                   dbfile + "' with init"; // 重写

      Conn conn = new Conn(poolName);
      try {
          conn.executeUpdate(sql);
      }
      catch (Exception e) {
          System.out.print("BackupDB:" + e.getMessage());
          return false;
      }
      finally {
          if (conn!=null) {
              conn.close(); conn = null;
          }
      }
      return true;
  }

}