java 实现mysql数据库备份

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;

@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
<
4000
p style="margin:10px auto;">// .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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