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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