java实现Mysql的备份与还原

import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.util.Properties;

public class JavaMysql {
/*
* 备份数据库 1、读取配置文件 2、启动智能查询Mysql安装目录 3、备份数据库为sql文件
*/
public static void backup(String sql) {

Properties pros = getPprVue("prop.properties");
String username = pros.getProperty("username");
String password = pros.getProperty("password");

CheckSoftware c = null;
try {
System.out.println("MySQL服务安装地址 ："+c.check().toString());
} catch (Exception e2) {
e2.printStackTrace();
}
String mysqlpaths;
try {
mysqlpaths = c.check().toString() + "bin" + "\\";

String databaseName = pros.getProperty("databaseName");
String address = pros.getProperty("address");
String sqlpath = pros.getProperty("sql");
File backupath = new File(sqlpath);
if (!backupath.exists()) {
backupath.mkdir();
}

StringBuffer sb = new StringBuffer();

sb.append(mysqlpaths);
sb.append("mysqldump ");
sb.append("--opt ");
sb.append("-h ");
sb.append(address);
sb.append(" ");
sb.append("--user=");
sb.append(username);
sb.append(" ");
sb.append("--password=");
sb.append(password);
sb.append(" ");
sb.append("--lock-all-tables=true ");
sb.append("--result-file=");
sb.append(sqlpath);
sb.append(sql);
sb.append(" ");
sb.append("--default-character-set=utf8 ");
sb.append(databaseName);
System.out.println("cmd指令 ："+sb.toString());
Runtime cmd = Runtime.getRuntime();
try {
Process p = cmd.exec(sb.toString());
} catch (IOException e) {
e.printStackTrace();
}
} catch (Exception e1) {
e1.printStackTrace();
}
}

/*
* 读取属性文件
*/
public static Properties getPprVue(String properName) {

InputStream inputStream = JavaMysql.class.getClassLoader()
.getResourceAsStream(properName);
Properties p = new Properties();

try {
p.load(inputStream);
inputStream.close();
} catch (IOException e) {
e.printStackTrace();
}

return p;

}

/*
* 根据备份文件恢复数据库
*/
public static void load(String filename) {
Properties pros = getPprVue("prop.properties");
String root = pros.getProperty("jdbc.username");
String pass = pros.getProperty("jdbc.password");
String mysqlpaths = c.check().toString() + "bin" + "\\";
String sqlpath = pros.getProperty("sql");
String filepath = mysqlpaths + sqlpath + filename; // 备份的路径地址

String stmt1 = mysqlpaths + "mysqladmin -u " + root + " -p" + pass
+ " create finacing"; // -p后面加的是你的密码
String stmt2 = mysqlpaths + "mysql -u " + root + " -p" + pass
+ " finacing < " + filepath;
String[] cmd = { "cmd", "/c", stmt2 };
try {
Runtime.getRuntime().exec(stmt1);
Runtime.getRuntime().exec(cmd);
System.out.println("数据已从 " + filepath + " 导入到数据库中");
} catch (IOException e) {
e.printStackTrace();
}

}

/*
* Test测试
*/
public static void main(String[] args) throws IOException {
backup("2221.sql");
}
}

ubuntu下操作

public static void main(String[] args) throws Exception{
String cmd = "/bin/sh backup.sh ";
Process process = Runtime.getRuntime().exec(cmd);
process.waitFor();//脚本中多任务时，由于下面有destroy，所以需要此语句
process.destroy();//销毁子线程
}

 

backup.sh代码： #!/bin/bash backupTime=`date +%Y%m%d-%T` sudo mysqldump -u root -p123uusc --quick uuyx > /home/uu/db_$backupTime.sql

MYSQL备份还原指令

1.show processlist; //查看当前正在进行的进程，对于有锁表等情况的排查很有用处。
2.show open tables; //显示当前已经被打开的表列表
3.mysqldump -hhostname -uusername -ppassword databasename > backupfile.sql //备份mysql数据库命令
4.mysqldump --add-drop-table -hhostsname -uusername -ppassword databasename > backupfile.sql //备份mysql数据库为带删除表的格式，能够让该备份覆盖已有数据库而不需要手动删除原有数据库
5.mysqldump -hhostname -uusername -ppassword databasename | gzip > backupfile.sql.gz //直接将mysql数据库压缩备份
6.mysqldump -hhostname -uusername -ppassword database1 database2 database3 > multifile.sql //同时备份多个mysql数据库
7.mysqldump -hhostname -uusername -ppassword database1 tablename1 tablename2 tablename3 > multifile.sql //同时备份mysql数据库某个（些）表
8.mysqldump --no-data --databases -hhostname -uusername -ppassword databasename1 databasename2 >struct2.sql //仅仅备份数据库的结构
9.mysqldump --all-databases -hhostname -uusername -ppassword > backup.sql //备份服务器上的所有数据
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1.mysql -hhostname -uusername -ppassword databasename < backup.sql //还原mysql数据库的命令
2.gunzip < backup.sql | mysql -hhostname -uusername -ppassword databasename //还原压缩的mysql数据库
3.mysqldump -hhostname -uusername -ppassword databasename | mysql --host=*.*.*.* -C databasename; //将数据库转移到新的服务器