2024年1月15日发(作者：)
Java实现Sqlserver及MySql的备份与还原
注：本人是采用Struts1做的一个简单小例子。
实现步骤：
1.数据库基类
package ;
import tion;
import Manager;
import eption;
/**
* @ClassName: DataBaseUtil
* @Description: TODO
* @author 莫希柏
* @date Jul 4, 2012 2:21:41 PM
*/
public class DataBaseUtil {
/**
* @Description: 获取数据库连接
* @author 莫希柏
* @date Jul 4, 2012 2:23:11 PM
*/
public static Connection getConnection() {
Connection conn = null;
try {
e("verDriver");
String url = "jdbc:microsoft:sqlserver://127.0.0.1:1433;
DatabaseName=datatest";
String username = "sa";
String password = "sa";
conn = nection(url, username, password);
} catch (ClassNotFoundException e) {
tackTrace();
} catch (SQLException e) {
tackTrace();
}
return conn;
}
/**
* @Description: 关闭
* @author 莫希柏
* @date Jul 4, 2012 2:22:57 PM
*/
public static void closeConn(Connection conn) {
if (conn != null) {
try {
();
} catch (SQLException e) {
tackTrace();
}
}
}
}
类
package ;
import edReader;
import ;
import putStream;
import tputStream;
import ption;
import tream;
import treamReader;
import Stream;
import StreamWriter;
import leStatement;
import edStatement;
import rvletRequest;
import rvletResponse;
import Form;
import Forward;
import Mapping;
import chAction;
import seUtil;
public class DataAction extends DispatchAction{
/**
* @Description: SqlServer备份
* @author 莫希柏
* @date Jul 4, 2012 2:45:16 PM
*/
public ActionForward doSqlServerBackUp(ActionMapping mapping,
ActionForm form,
HttpServletRequest request, HttpServletResponse response)
throws Exception {
String mssqlBackupName=
ameter("mssqlBackupName");//自定义备份数据库名
String mssqlBackupPath=
ameter("mssqlBackupPath");//自定义备份数据库保存路径
String dbName="datatest";//被备份的数据库名称
boolean flag=false;
try {
File file = new File(mssqlBackupPath);
String path = h() + ""
+ mssqlBackupName + ".bak";//备份生成的数据路径及文件名
String bakSql = "backup database "
+dbName+" to disk=? with init";//备份数据库SQL语句
PreparedStatement bak = nection()
.prepareStatement(bakSql);
ing(1, path);//path必须是绝对路径
e(); //备份数据库
();
flag=true;
} catch (Exception e) {
flag=false;
tackTrace();
}
racterEncoding("utf-8");
try {
if(flag==true){
ter().print(
"");
}else{
ter().print(
"");
}
} catch (IOException e) {
tackTrace();
}
return null;
}
/**
* @Description: SqlServer还原
* @author 莫希柏
* @date Jul 4, 2012 4:28:05 PM
*/
public ActionForward doSqlServerRecovery(ActionMapping mapping,
ActionForm form,HttpServletRequest request, HttpServletResponse
response){
boolean flag = false;
String mssqlRecoveryPath =
ameter("mssqlRecoveryPath"); //
被还原数据库文件的路径
String dbname="datatest";//数据库名称
try{
File file = new File(mssqlRecoveryPath);
String path = h();//数据库文件名
String recoverySql = "ALTER DATABASE "
+dbname+" SET ONLINE WITH
ROLLBACK IMMEDIATE";// 断开所有连接
PreparedStatement ps
= nection()
.prepareStatement(recoverySql);
CallableStatement cs
= nection().prepareCall("{call
killrestore(?,?)}"); //调用存储过程
ing(1, dbname); // 数据库名
ing(2, path); // 已备份数据库所在路径
e(); // 还原数据库
e(); // 恢复数据库连接
flag=true;
} catch (Exception e) {
flag=false;
tackTrace();
}
racterEncoding("utf-8");
try {
if(flag==true){
ter().print(
"");
}else{
ter().print(
"");
}
} catch (IOException e) {
tackTrace();
}
return null;
}
/**
* @Description: MySql备份
* @author 莫希柏
* @date Jul 4, 2012 4:39:02 PM
*/
public ActionForward doMySqlBackUp (ActionMapping mapping,
ActionForm form, HttpServletRequest request,
HttpServletResponse response){
boolean flag=false;
try {
Runtime rt = time();
String mySqlBackupName
=ameter("mySqlBackupName");//mysql自定义数据库备份名称
String mysqlBackupPath
=ameter("mysqlBackupPath");//mysql自定义数据库备份保存路径
String fPath=mysqlBackupPath+mySqlBackupName+".sql";
String command="C:/Program Files/MySQL/MySQL Server
5.0/bin/mysqldump -uroot -p123456 datatest";
//调用 mysql的cmd:
Process child = (command);// 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 = utStream();// 控制台的输出信息作为输入流
InputStreamReader input = 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(input);
while ((inStr = ne()) != null) {
(inStr + "rn");
}
outStr = ng();
//要用来做导入用的sql目标文件：
FileOutputStream fout = new FileOutputStream(fPath);
OutputStreamWriter writer = new OutputStreamWriter(fout,
"utf8");
(outStr);
//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
();
//关闭输入输出流
();
();
();
();
();
n("MYSQL备份成功");
flag=true;
} catch (Exception e) {
flag=false;
tackTrace();
}
racterEncoding("utf-8");
try {
if(flag==true){
ter().print(
"");
}else{
ter().print(
"");
}
}
} catch (IOException e) {
tackTrace();
}
return null;
/**
* @Description: MySql还原
* @author 莫希柏
* @date Jul 4, 2012 4:39:10 PM
*/
public ActionForward doMySqlRecovery(ActionMapping mapping,
ActionForm form,HttpServletRequest request,
HttpServletResponse response){
boolean flag=false;
try {
String fPath =
ameter("mySqlWebtruePath");//路径
Runtime rt = time();
String command="C:/Program Files/MySQL/MySQL Server
5.0/bin/ -uroot -p123456 datatest ";
// 调用mysql的cmd
Process child = (command);
OutputStream out = putStream();//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 = ne()) != null) {
(inStr + "rn");
}
outStr = ng();
OutputStreamWriter writer = new OutputStreamWriter(out,
"utf8");
(outStr);
//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
();
//关闭输入输出流
();
();
();
n("MYSQL还原成功");
flag=true;
} catch (Exception e) {
flag=false;
tackTrace();
}
racterEncoding("utf-8");
try {
if(flag==true){
ter().print(
"");
}else{
ter().print(
"");
}
} catch (IOException e) {
tackTrace();
}
return null;
}
/**
* @Description: 返回主页
* @author 莫希柏
* @date Jul 5, 2012 9:14:46 AM
* @throws
*/
public ActionForward toBackIndex(ActionMapping mapping,
ActionForm form,
HttpServletRequest request, HttpServletResponse response)
throws Exception {
return rward("index");
}
}
3.存储过程
create proc killrestore (@dbname varchar(20),@dbpath varchar(40))
as
begin
declare @sql nvarchar(500)
declare @spid int
set @sql='declare getspid cursor for select spid from master..sysprocesses where
dbid=db_id('''+@dbname+''')'
exec (@sql)
open getspid
fetch next from getspid into @spid
while @@fetch_status <> -1
begin
exec('kill '+@spid)
fetch next from getspid into @spid
end
close getspid
deallocate getspid
restore database @dbname from disk= @dbpath with replace
end
页面展示
<%@ page language="java" import=".*" pageEncoding="UTF-8"%>
<%
String path = textPath();
String basePath =
eme()+"://"+verName()+":"+verPort()+path+"/";
%>
content="keyword1,keyword2,keyword3">
MSSQL备份文件名称：
name="mssqlBackupName">
MSSQL备份文件路径：
size="30">
备份路径"
onclick="toSqlServerBackUp();">
MSSQL还原文件路径：
name="mssqlRecoveryPath">
MYSQL备份文件名称：
name="MysqlBackupName">
MYSQL备份文件路径：
size="30">
onclick="browseFolder('mysqlBackupPath')">
value="MYSQL备份" onclick="toMySqlBackUp();">
MYSQL还原文件路径：
name="mySqlWebtruePath">
value="MYSQL还原" onclick="toMySqlRecovery();">
注：
一、JS 实现文件夹目录选择
如果点击选择按钮提示：你没有权限，应该如下修改：
1. 单击菜单工具->Internet选项->安全->受信任站点->站点->把此网站设为可信站点
2. 在自定义级别->对没有标记为安全的ActiveX控件进行初始化和脚本运行启用
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