java 备份、还原oracle数据库

package com.hdx.cs.services;

import java.io.BufferedReader;
import java.io.File;
import java.io.IOException;
import java.io.InputStreamReader;

 

public class OracleBackUp{
 public static void main(String[] args) {
  //数据库的名称要使用大写
  backUpDataBaseOracle("cs", "hdx", "ORCL", "D:/oralce");
  //resumeDataBaseOracle("cs", "hdx", "ORCL", "D:/oralce");
 }

 /**
  * 备份指定用户数据库
  * @param userName
  * 用户名
  * @param password
  * 密码
  * @param databseName
  * 数据库名称
  * @param address
  * 保存地址 d:/oracle/backup
  */
 private static void backUpDataBaseOracle(String userName,String password,String databseName,String address){
  //拼接dos命令进行数据库备份
  StringBuffer exp = new StringBuffer("exp ");
  exp.append(userName);
  exp.append("/");
  exp.append(password);
  exp.append("@");
  exp.append(databseName);
  exp.append(" file=");
  /*
   * 得到存储地址的最后一个字符，如果有“\”就直接拼装地址，如果没有\就加上/然后拼装数据库名称
   * */
  String maxIndex = address.substring(address.length()-1);
  if("/".equals(maxIndex)||"\\".equals(maxIndex)) {
   exp.append(address);
  } else {
   address = address+"\\";
   exp.append(address);
  }
  File file = new File(address);
  //如果文件不存在那么就重新创建，包括父目录
  if(!file.exists()) {
   file.mkdirs();
  }
  exp.append(databseName);
  exp.append(".dmp");
  System.out.println("开始备份");
  try{
   System.out.println(exp.toString());
   Process p = Runtime.getRuntime().exec(exp.toString());
   InputStreamReader isr = new InputStreamReader(p.getErrorStream());
   BufferedReader br = new BufferedReader(isr);
   String line = null;
   while((line = br.readLine())!=null) {
    if(line.indexOf("错误")!=-1) {
     break;
    }

   }
   p.destroy();
   p.waitFor();
   System.out.println("备份成功！");
  } catch (IOException e) {
   System.out.println(e.getMessage());

  } catch (InterruptedException e) {
   e.printStackTrace();
  }
 }

 //还原指定用户数据库
 private static void resumeDataBaseOracle(String userName,String password,String dataBaseName,String address) {
  //拼接DOS命令进行数据库还原
  StringBuffer imp = new StringBuffer("imp ");
  imp.append(userName);
  imp.append("/");
  imp.append(password);
  imp.append("@");
  imp.append(dataBaseName);
  imp.append(" file=");

  String maxIndex = address.substring(address.length()-1);
  if("/".equals(maxIndex)||"||".equals(maxIndex)) {
   imp.append(address);
  } else  {
   address = address+"\\";
   imp.append(address);
  }
  imp.append(dataBaseName);
  imp.append(".dmp");
  File file = new File(address+dataBaseName+".dmp");
  //判断文件是否存在，存在才进行恢复，不存在就不恢复
  if(file.exists()) {
   System.out.println("开始恢复...");
   try{
    System.out.println(imp.toString());
    Process p = Runtime.getRuntime().exec(imp.toString());
    InputStreamReader isr = new InputStreamReader(p.getErrorStream());
    BufferedReader br = new BufferedReader(isr);
    String line = null;
    while((line=br.readLine())!=null) {
     if(line.indexOf("错误")!=-1) {
      break;
     }
    }
    p.destroy();
    System.out.println("恢复成功！");
    p.waitFor();

   }catch(IOException e) {
    System.out.println(e.getMessage());
   } catch (InterruptedException e) {
    System.out.println(e.getMessage());
   }
  }
 }

}