java mysql 数据库备份和还原操作

package com.itenp.gen.action;

import java.io.BufferedReader;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import javax.annotation.Resource;

import org.apache.log4j.Logger;
import org.springframework.context.annotation.Scope;
import org.springframework.stereotype.Controller;

import com.itenp.gen.common.Constants;
import com.itenp.gen.common.ParameterUtil;
import com.itenp.gen.service.i.BackUpServiceI;
import com.itenp.gen.system.PropertiesCache;
import com.itenp.gen.vo.BackUpVO;
import com.itenp.gen.vo.UserVO;

/** 说明:数据备份还原
 *  作者:fhadmin
 *  from www.fhadmin.cn
*/
@SuppressWarnings("serial")
@Scope("prototype")
@Controller("backupAction")
public class BackUpAction extends BaseAction {

      private static Logger log = Logger.getLogger(BackUpAction.class);

      private String databaseDirectory = PropertiesCache.getInstance().getDatabaseDirectory(); //数据库bin路径
      private String databaseName = PropertiesCache.getInstance().getDatabaseName();//数据库名
      private String userName = PropertiesCache.getInstance().getUserName();
      private String userPwd = PropertiesCache.getInstance().getUserPwd();
      private String copyDbCmd = PropertiesCache.getInstance().getCopyDbCmd();//数据库备份命令
      private String copyprocCmd = PropertiesCache.getInstance().getCopyprocCmd();//存储工程备份命令
      private String copyedFilePath = PropertiesCache.getInstance().getCopyedFilePath(); //备份后的文件存放位置
      private String restoreCmd = PropertiesCache.getInstance().getRestoreCmd();        //数据库还原命令

      private String msg = "";
      private String msg1 = "";

    private BackUpServiceI service;

    @Resource(name="backupService")
    public void setBackupService(BackUpServiceI service){

        this.service=service;
    }

    @SuppressWarnings("unchecked")
    public String list() throws Exception
    {
        //System.out.println("copyedFilePath"+copyedFilePath);
        HashMap map = new HashMap();

        //得到符合条件的记录List
        List<BackUpVO> list = (List)service.findList(map);

        request.setAttribute("list", list);

        log.debug("####"+PropertiesCache.getInstance().getTemplateDirectory());
    //    System.out.println(PropertiesCache.getInstance().getTemplateDirectory());
        return "success";
    }

    @SuppressWarnings("unchecked")
    public String backup() throws Exception
    {
                    Runtime rt = Runtime.getRuntime();

                    // 调用 mysql 的 cmd:

                    /*System.out.println("数据库bin路径"+databaseDirectory);
                    System.out.println("数据库名"+databaseName);
                    System.out.println("用户名"+userName);
                    System.out.println("密码"+userPwd);
                    System.out.println("数据库备份命令"+copyDbCmd);
                    System.out.println("存储工程备份命令"+copyprocCmd);*/

                    String str = databaseDirectory+"/"+copyDbCmd+" --no-defaults "+"-u"+userName+" "+"-p"+userPwd+" "+copyprocCmd+" "+"--set-charset=utf-8"+" "+databaseName;

                    //str = "D:\SOFT\MySQL\MySQL Server 5.5\bin/mysqldump -uroot -proot -R --set-charset=utf-8 nlnk";

                    //System.out.println(str);

                    // Process child = rt.exec(databaseDirectory+"/"+copyDbCmd+" "+"-u"+userName+" "+"-p"+userPwd+" "+copyprocCmd+" "+"--set-charset=utf-8"+" "+databaseName);// 设置导出编码为utf8。这里必须是utf8
                    Process child = rt.exec(str);// 设置导出编码为utf8。这里必须是utf8

                     //调用mysql的cmd:备份某个表
                    // Process childtable = rt
                    // .exec("D:/db/mysql/mysql-5.0.45-win32/bin/mysqldump -uroot -pmysql  --set-charset=utf8 ibtts t_a_dbbak");// 设置导出编码为utf8。这里必须是utf8
                    //  Process childtable = rt
                    // .exec(databaseDirectory+"/"+copyDbCmd+" "+"-u"+userName+" "+"-p"+userPwd+" "+"--set-charset=utf8"+" "+databaseName+" "+"t_a_dbbak");// 设置导出编码为utf8。这里必须是utf8

                     // 把进程执行中的控制台输出信息写入.sql文件，即生成了备份文件。注：如果不对控制台信息进行读出，则会导致进程堵塞无法运行
                     InputStream in = child.getInputStream();// 控制台的输出信息作为输入流

                     InputStreamReader xx = new InputStreamReader(in, "utf8");// 设置输出流编码为utf8。这里必须是utf8，否则从流中读入的是乱码

                     String inStr;
                     StringBuffer sb = new StringBuffer("");
                     String outStr;
                     // 组合控制台输出信息字符串
                     BufferedReader br = new BufferedReader(xx);

                    // System.out.println("------------"+br.readLine());

                    while ((inStr = br.readLine()) != null) {
                         sb.append(inStr + "\r\n");
                     }
                     outStr = sb.toString();

                     //判断是否保存成功
                     if(outStr != null && !outStr.trim().equals("")){
                         msg="ok";
                     }

                     //System.out.println("-----"+outStr);
                         //创建文件名称
                     SimpleDateFormat format = new SimpleDateFormat("yyyyMMddHHmmss");
                     String today=format.format(new Date());

                     //String targetDirectory = scontext.getRealPath("/WEB-INF/DBbackup");
                         //    System.out.println(targetDirectory);
                     // 要用来做导入用的sql目标文件：D:/ibtts.sql

                     FileOutputStream fout = new FileOutputStream(
                             copyedFilePath+"/"+today+"ibtts.sql" );
                     OutputStreamWriter writer = new OutputStreamWriter(fout, "utf8");
                     writer.write(outStr);
                    // 注：这里如果用缓冲方式写入文件的话，会导致中文乱码，用flush()方法则可以避免
                     writer.flush();

                     // 别忘记关闭输入输出流
                     in.close();
                     xx.close();
                     br.close();
                     writer.close();
                     fout.close();

                    // System.out.println("/* Output OK! */");

                     //数据添加到数据库
                     HashMap map = new HashMap();

                     map.put("db_nm", "ibtts");
                     map.put("bk_nm", today+"ibtts.sql");
                     map.put("bk_user",((UserVO)session.get(Constants.S_LOGIN_USER)).getUser_id());

                     service.create(map);

                   //  copytable();

                     return list();
             }

    /**
     * 数据的恢复
     */
    @SuppressWarnings("unchecked")
    public String load() throws Exception
    {        
        copytable();

        //得到页面所有参数
        Map<String, String> map = ParameterUtil.getStringMap(request,session);
        //String targetDirectory = scontext.getRealPath("/WEB-INF/DBbackup");

        //获取id后进行查询
        BackUpVO vo=(BackUpVO) service.findById(map);

        String fPath=copyedFilePath+"/"+vo.getBk_nm();

        System.out.println(fPath);

        //map.put("Id", vo.getId());

        //String fPath = "D:/ibtts.sql";
        Runtime rt = Runtime.getRuntime();

        // 调用 mysql 的 cmd:
        //Process child = rt.exec("D:/db/mysql/mysql-5.0.45-win32/bin/mysql -uroot -pmysql ibtts");
        Process child = rt.exec(databaseDirectory+"/"+restoreCmd+" "+"-u"+userName+" "+"-p"+userPwd+" "+databaseName);

        //System.out.println(databaseDirectory+"/"+restoreCmd+" "+"-u"+userName+" "+"-p"+userPwd+" "+databaseName);

        java.io.OutputStream out =child.getOutputStream();//控制台的输入信息作为输出流
        String inStr;
        StringBuffer sb = new StringBuffer("");
        String outStr;
        BufferedReader br = new BufferedReader(new InputStreamReader(
        new FileInputStream(fPath), "utf8"));
        while ((inStr = br.readLine()) != null) {
        sb.append(inStr + "\r\n");
        }
        outStr = sb.toString();

        OutputStreamWriter writer = new OutputStreamWriter(out, "utf8");
        writer.write(outStr);
        // 注：这里如果用缓冲方式写入文件的话，会导致中文乱码，用flush()方法则可以避免
        writer.flush();
        // 别忘记关闭输入输出流
        out.close();
        br.close();
        writer.close();

        //获取还原用户
        map.put("restore_user", ((UserVO)session.get(Constants.S_LOGIN_USER)).getUser_id());

        //service.modify(map);

        restoretable(map);            //---------------

        //System.out.println(map);

        //System.out.println("恢复成功");

        request.getSession().setAttribute("dbmap", map);

        msg1 = "tiaozhuan";

        return "success";
        }

    //对特定表的处理
    public void copytable() throws Exception
    {
        Runtime rt = Runtime.getRuntime();

        // 调用 mysql 的 cmd:

         //调用mysql的cmd:备份某个表
         //Process child = rt
        // .exec("D:/db/mysql/mysql-5.0.45-win32/bin/mysqldump -uroot -pmysql  --set-charset=utf8 ibtts t_a_dbbak");// 设置导出编码为utf8。这里必须是utf8

         Process child = rt.exec(databaseDirectory+"/"+copyDbCmd+" --no-defaults "+"-u"+userName+" "+"-p"+userPwd+" "+"--set-charset=utf8"+" "+databaseName+" "+"t_a_dbbak");// 设置导出编码为utf8。这里必须是utf8
         // 把进程执行中的控制台输出信息写入.sql文件，即生成了备份文件。注：如果不对控制台信息进行读出，则会导致进程堵塞无法运行
         InputStream in = child.getInputStream();// 控制台的输出信息作为输入流

        // System.out.println(databaseDirectory+"/"+copyDbCmd+" --no-defaults "+"-u"+userName+" "+"-p"+userPwd+" "+"--set-charset=utf8"+" "+databaseName+" "+"t_a_dbbak");

         InputStreamReader xx = new InputStreamReader(in, "utf8");// 设置输出流编码为utf8。这里必须是utf8，否则从流中读入的是乱码

         String inStr;
         StringBuffer sb = new StringBuffer("");
         String outStr;
         // 组合控制台输出信息字符串
         BufferedReader br = new BufferedReader(xx);
        while ((inStr = br.readLine()) != null) {
             sb.append(inStr + "\r\n");
         }
         outStr = sb.toString();

         //String targetDirectory = scontext.getRealPath("/WEB-INF/DBbackup");

         // 要用来做导入用的sql目标文件：D:/ibtts.sql

         FileOutputStream fout = new FileOutputStream(
                 copyedFilePath+"/"+"ibtts_talbe.sql" );
         OutputStreamWriter writer = new OutputStreamWriter(fout, "utf8");
         writer.write(outStr);
        // 注：这里如果用缓冲方式写入文件的话，会导致中文乱码，用flush()方法则可以避免
         writer.flush();

         // 别忘记关闭输入输出流
         in.close();
         xx.close();
         br.close();
         writer.close();
         fout.close();

    }

    public void restoretable(Map map) throws Exception
    {

        String fPath=copyedFilePath+"/"+"ibtts_talbe.sql";

        //String fPath = "D:/ibtts.sql";
        Runtime rt = Runtime.getRuntime();

        // 调用 mysql 的 cmd:
        //Process child = rt.exec("D:/db/mysql/mysql-5.0.45-win32/bin/mysql -uroot -pmysql ibtts");
        Process child = rt.exec(databaseDirectory+"/"+restoreCmd+" "+"-u"+userName+" "+"-p"+userPwd+" "+databaseName);

        System.out.println(databaseDirectory+"/"+restoreCmd+" "+"-u"+userName+" "+"-p"+userPwd+" "+databaseName);

        java.io.OutputStream out =child.getOutputStream();//控制台的输入信息作为输出流
        String inStr;
        StringBuffer sb = new StringBuffer("");
        String outStr;
        BufferedReader br = new BufferedReader(new InputStreamReader(
        new FileInputStream(fPath), "utf8"));
        while ((inStr = br.readLine()) != null) {
        sb.append(inStr + "\r\n");
        }
        outStr = sb.toString();

        OutputStreamWriter writer = new OutputStreamWriter(out, "utf8");
        writer.write(outStr);
        // 注：这里如果用缓冲方式写入文件的话，会导致中文乱码，用flush()方法则可以避免
        writer.flush();
        // 别忘记关闭输入输出流

        out.close();
        br.close();
        writer.close();

        //System.out.println(map);

        /*int sign=0;
        BackUpVO vo=null;
        while(vo==null){
            vo=(BackUpVO) service.findById(map);
            if(vo!=null||sign==100){
                break;
            }
            sign++;
        }

        service.modify(map);*/

    }

    @SuppressWarnings("unchecked")
    public String upbak() throws Exception{
        HashMap map = new HashMap();
        map = (HashMap)request.getSession().getAttribute("dbmap");

        int sign=0;
        BackUpVO vo=null;
        while(vo==null){
            vo=(BackUpVO) service.findById(map);
            if(vo!=null||sign==100){
                break;
            }
            sign++;
        }

        service.modify(map);

        return list();
    }

    public String getMsg() {
        return msg;
    }

    public void setMsg(String msg) {
        this.msg = msg;
    }

    public String getMsg1() {
        return msg1;
    }

    public void setMsg1(String msg1) {
        this.msg1 = msg1;
    }

}

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