atitit.跨语言实现备份mysql数据库 为sql文件特性 api 兼容性java c#.net php js

atitit.跨语言实现备份mysql数据库 为sql文件特性 api 兼容性java c#.net php js

1. 两个方法:: bat vs mysqldump(推荐) vs lang api1

2. lang api基本的原理就是1

3. Mode only struts and data2

3.1. Php code2

4. Java code3

5. mysqldump --help 参数7

6. 参考13

1. 两个方法:: bat vs mysqldump(推荐) vs lang api

mysqldump更简单的..

C:\wamp\mysql\bin\mysqldump.exe -uroot -proot --set-charset=utf8 wxb_site_new --result-file=c:\wxb_site_new.sql

Php 常用使用api法,大概是没cmd 环境吧...

2. lang api基本的原理就是

Get db strtus

Get data gene insert statmemnt

Gene file

关键技术：

1. 首先要得到该数据库中有哪些表，所用函数 mysql_list_tables()，然后可以将获取的所有表名存到一个数组。

2. show create table 表名 可以获取表结构。

3. select * from 表名 取出所有记录，用循环拼接成 insert into... 语句。

作者:: 绰号:老哇的爪子 （ 全名：：Attilax Akbar Al Rapanui 阿提拉克斯 阿克巴 阿尔 拉帕努伊 ） 汉字名：艾龙， EMAIL:1466519819@qq.com

转载请注明来源： http://blog.csdn.net/attilax

3. Mode only struts and data

3.1. Php code

$rs=mysql_query("SHOW TABLES FROM $this->database");

$tb=$this->table_list();

foreach ($tb as $v) {

$rs=mysql_query("SHOW CREATE TABLE $v");

INSERT INTO语句

$tb=$this->tblist();

foreach ($tb as $v) {

$rs=mysql_query("SELECT * FROM $v");

$sql.="-- 表的数据：$v --\r\n";

$sql.="INSERT INTO `$v` VALUES\r\n";

while ($temp=mysql_fetch_row($rs)) {

$sql.='(';

foreach ($temp as $v2) {

if ($v2===null) {

$sql.="NULL,";

}

else {

$v2=mysql_real_escape_string($v2);

$sql.="'$v2',";

}

}

$sql=mb_substr($sql, 0, -1);

$sql.="),\r\n";

}

4. Java code

Invoke param

C:\wamp\mysql\bin\mysqldump.exe root root wxb_site_new c:

package com.attilax.dbManager;

import java.io.BufferedReader;

import java.io.File;

import java.io.FileInputStream;

import java.io.FileNotFoundException;

import java.io.FileOutputStream;

import java.io.IOException;

import java.io.InputStream;

import java.io.InputStreamReader;

import java.io.OutputStream;

import java.io.OutputStreamWriter;

import java.io.PrintWriter;

import java.io.UnsupportedEncodingException;

import com.attilax.cmd.CmdX;

import com.attilax.exception.ExUtil;

import com.attilax.io.filex;

/**

* MySQL数据库的备份与恢复 缺陷：可能会被杀毒软件拦截

*

* @author attilax q214

* @version xxx

*/

public class DatabaseBackup {

/** MySQL安装目录的Bin目录的绝对路径 */

private String mysqlBinPath;

/** 访问MySQL数据库的用户名 */

private String username;

/** 访问MySQL数据库的密码 */

private String password;

private String sqlfilePath;

public DatabaseBackup(String mysqlBinPath, String username, String password) {

//if (!mysqlBinPath.endsWith(File.separator)) {

//mysqlBinPath = mysqlBinPath + File.separator;

//}

this.mysqlBinPath = mysqlBinPath;

this.username = username;

this.password = password;

}

/**

* 备份数据库

*

* @param output

* 输出流

* @param dbname

* 要备份的数据库名

*/

public void backup(OutputStream output, String dbname) {

String command = " " + mysqlBinPath + " -u" + username + " -p"

+ password + " --set-charset=utf8 " + dbname

+ " --result-file=" + this.sqlfilePath + "\\"+dbname+"_back_"

+ filex.getUUidName() + ".sql";

System.out.println("--cmd :" + command);

//command="cmd /c dir";

try {

Process process = Runtime.getRuntime().exec(command);

CmdX.redirectEcho2Screen(process);

} catch (Exception e) {

e.printStackTrace();

ExUtil.throwEx(e);

}

}

/**

* 备份数据库，如果指定路径的文件不存在会自动生成

*

* @param dest

* 备份文件的路径

* @param dbname

* 要备份的数据库

*/

public void backup(String dest, String dbname) {

this.sqlfilePath = dest;

OutputStream out = null;

// new FileOutputStream(dest);

backup(out, dbname);

}

/**

* 恢复数据库

*

* @param input

* 输入流

* @param dbname

* 数据库名

*/

public void restore(InputStream input, String dbname) {

String command = "cmd /c " + mysqlBinPath + "mysql -u" + username

+ " -p" + password + " " + dbname;

try {

Process process = Runtime.getRuntime().exec(command);

OutputStream out = process.getOutputStream();

String line = null;

String outStr = null;

StringBuffer sb = new StringBuffer("");

BufferedReader br = new BufferedReader(new InputStreamReader(input,

"utf8"));

while ((line = br.readLine()) != null) {

sb.append(line + "/r/n");

}

outStr = sb.toString();

OutputStreamWriter writer = new OutputStreamWriter(out, "utf8");

writer.write(outStr);

writer.flush();

out.close();

br.close();

writer.close();

} catch (UnsupportedEncodingException e) {

e.printStackTrace();

} catch (IOException e) {

e.printStackTrace();

}

}

/**

* 恢复数据库

*

* @param dest

* 备份文件的路径

* @param dbname

* 数据库名

*/

public void restore(String dest, String dbname) {

try {

InputStream input = new FileInputStream(dest);

restore(input, dbname);

} catch (FileNotFoundException e) {

e.printStackTrace();

}

}

/**

* C:\wamp\mysql\bin\mysqldump.exe root root wxb_site_new

* c:\wxb_site_new.sql

*

* @param args

*/

public static void main(String[] args) {

// Configuration config = HibernateSessionFactory.getConfiguration();

String binPath = args[0];

String userName = args[1];

String pwd = args[2];

DatabaseBackup bak = new DatabaseBackup(binPath, userName, pwd);

bak.backup(args[4], args[3]);

// bak.restore("c:/ttt.sql", "ttt");

System.out.println("--f");

}

}

5. mysqldump --help 参数

mysqldump Ver 10.11 Distrib 5.0.45, for Win32 (ia32)

By Igor Romanenko, Monty, Jani & Sinisa

This software comes with ABSOLUTELY NO WARRANTY. This is free software,

and you are welcome to modify and redistribute it under the GPL license

Dumping definition and data mysql database or table

Usage: mysqldump [OPTIONS] database [tables]

OR mysqldump [OPTIONS] --databases [OPTIONS] DB1 [DB2 DB3...]

OR mysqldump [OPTIONS] --all-databases [OPTIONS]

Default options are read from the following files in the given order:

C:\my.ini C:\my.cnf C:\Windows\my.ini C:\Windows\my.cnf C:\wamp\mysql\my.ini C:\wamp\mysql\my.cnf

The following groups are read: mysqldump client

The following options may be given as the first argument:

--print-defaultsPrint the program argument list and exit

--no-defaultsDon't read default options from any options file

--defaults-file=#Only read default options from the given file #

--defaults-extra-file=# Read this file after the global files are read

-a, --all Deprecated. Use --create-options instead.

-A, --all-databases Dump all the databases. This will be same as --databases

with all databases selected.

--add-drop-database Add a 'DROP DATABASE' before each create.

--add-drop-table Add a 'drop table' before each create.

--add-locks Add locks around insert statements.

--allow-keywords Allow creation of column names that are keywords.

--character-sets-dir=name

Directory where character sets are.

-i, --comments Write additional information.

--compatible=name Change the dump to be compatible with a given mode. By

default tables are dumped in a format optimized for

MySQL. Legal modes are: ansi, mysql323, mysql40,

postgresql, oracle, mssql, db2, maxdb, no_key_options,

no_table_options, no_field_options. One can use several

modes separated by commas. Note: Requires MySQL server

version 4.1.0 or higher. This option is ignored with

earlier server versions.

--compact Give less verbose output (useful for debugging). Disables

structure comments and header/footer constructs. Enables

options --skip-add-drop-table --no-set-names

--skip-disable-keys --skip-add-locks

-c, --complete-insert

Use complete insert statements.

-C, --compress Use compression in server/client protocol.

--create-options Include all MySQL specific create options.

-B, --databases To dump several databases. Note the difference in usage;

In this case no tables are given. All name arguments are

regarded as databasenames. 'USE db_name;' will be

included in the output.

-#, --debug[=#] This is a non-debug version. Catch this and exit

--debug-info Print some debug info at exit.

--default-character-set=name

Set the default character set.

--delayed-insert Insert rows with INSERT DELAYED;

--delete-master-logs

Delete logs on master after backup. This automatically

enables --master-data.

-K, --disable-keys '/*!40000 ALTER TABLE tb_name DISABLE KEYS */; and

'/*!40000 ALTER TABLE tb_name ENABLE KEYS */; will be put

in the output.

-e, --extended-insert

Allows utilization of the new, much faster INSERT syntax.

--fields-terminated-by=name

Fields in the textfile are terminated by ...

--fields-enclosed-by=name

Fields in the importfile are enclosed by ...

--fields-optionally-enclosed-by=name

Fields in the i.file are opt. enclosed by ...

--fields-escaped-by=name

Fields in the i.file are escaped by ...

-x, --first-slave Deprecated, renamed to --lock-all-tables.

-F, --flush-logs Flush logs file in server before starting dump. Note that

if you dump many databases at once (using the option

--databases= or --all-databases), the logs will be

flushed for each database dumped. The exception is when

using --lock-all-tables or --master-data: in this case

the logs will be flushed only once, corresponding to the

moment all tables are locked. So if you want your dump

and the log flush to happen at the same exact moment you

should use --lock-all-tables or --master-data with

--flush-logs

--flush-privileges Emit a FLUSH PRIVILEGES statement after dumping the mysql

database. This option should be used any time the dump

contains the mysql database and any other database that

depends on the data in the mysql database for proper

restore.

-f, --force Continue even if we get an sql-error.

-?, --help Display this help message and exit.

--hex-blob Dump binary strings (BINARY, VARBINARY, BLOB) in

hexadecimal format.

-h, --host=name Connect to host.

--ignore-table=name Do not dump the specified table. To specify more than one

table to ignore, use the directive multiple times, once

for each table. Each table must be specified with both

database and table names, e.g.

--ignore-table=database.table

--insert-ignore Insert rows with INSERT IGNORE.

--lines-terminated-by=name

Lines in the i.file are terminated by ...

-x, --lock-all-tables

Locks all tables across all databases. This is achieved

by taking a global read lock for the duration of the

whole dump. Automatically turns --single-transaction and

--lock-tables off.

-l, --lock-tables Lock all tables for read.

--log-error=name Append warnings and errors to given file.

--master-data[=#] This causes the binary log position and filename to be

appended to the output. If equal to 1, will print it as a

CHANGE MASTER command; if equal to 2, that command will

be prefixed with a comment symbol. This option will turn

--lock-all-tables on, unless --single-transaction is

specified too (in which case a global read lock is only

taken a short time at the beginning of the dump - don't

forget to read about --single-transaction below). In all

cases any action on logs will happen at the exact moment

of the dump.Option automatically turns --lock-tables off.

--max_allowed_packet=#

--net_buffer_length=#

--no-autocommit Wrap tables with autocommit/commit statements.

-n, --no-create-db 'CREATE DATABASE /*!32312 IF NOT EXISTS*/ db_name;' will

not be put in the output. The above line will be added

otherwise, if --databases or --all-databases option was

given.}.

-t, --no-create-info

Don't write table creation info.

-d, --no-data No row information.

-N, --no-set-names Deprecated. Use --skip-set-charset instead.

--opt Same as --add-drop-table, --add-locks, --create-options,

--quick, --extended-insert, --lock-tables, --set-charset,

and --disable-keys. Enabled by default, disable with

--skip-opt.

--order-by-primary Sorts each table's rows by primary key, or first unique

key, if such a key exists. Useful when dumping a MyISAM

table to be loaded into an InnoDB table, but will make

the dump itself take considerably longer.

-p, --password[=name]

Password to use when connecting to server. If password is

not given it's solicited on the tty.

-W, --pipe Use named pipes to connect to server.

-P, --port=# Port number to use for connection.

--protocol=name The protocol of connection (tcp,socket,pipe,memory).

-q, --quick Don't buffer query, dump directly to stdout.

-Q, --quote-names Quote table and column names with backticks (`).

-r, --result-file=name

Direct output to a given file. This option should be used

in MSDOS, because it prevents new line '\n' from being

converted to '\r\n' (carriage return + line feed).

-R, --routines Dump stored routines (functions and procedures).

--set-charset Add 'SET NAMES default_character_set' to the output.

Enabled by default; suppress with --skip-set-charset.

-O, --set-variable=name

Change the value of a variable. Please note that this

option is deprecated; you can set variables directly with

--variable-name=value.

--shared-memory-base-name=name

Base name of shared memory.

--single-transaction

Creates a consistent snapshot by dumping all tables in a

single transaction. Works ONLY for tables stored in

storage engines which support multiversioning (currently

only InnoDB does); the dump is NOT guaranteed to be

consistent for other storage engines. Option

automatically turns off --lock-tables.

--skip-opt Disable --opt. Disables --add-drop-table, --add-locks,

--create-options, --quick, --extended-insert,

--lock-tables, --set-charset, and --disable-keys.

-S, --socket=name Socket file to use for connection.

--ssl Enable SSL for connection (automatically enabled with

other flags). Disable with --skip-ssl.

--ssl-ca=name CA file in PEM format (check OpenSSL docs, implies

--ssl).

--ssl-capath=name CA directory (check OpenSSL docs, implies --ssl).

--ssl-cert=name X509 cert in PEM format (implies --ssl).

--ssl-cipher=name SSL cipher to use (implies --ssl).

--ssl-key=name X509 key in PEM format (implies --ssl).

--ssl-verify-server-cert

Verify server's "Common Name" in its cert against

hostname used when connecting. This option is disabled by

default.

-T, --tab=name Creates tab separated textfile for each table to given

path. (creates .sql and .txt files). NOTE: This only

works if mysqldump is run on the same machine as the

mysqld daemon.

--tables Overrides option --databases (-B).

--triggers Dump triggers for each dumped table

--tz-utc SET TIME_ZONE='+00:00' at top of dump to allow dumping of

TIMESTAMP data when a server has data in different time

zones or data is being moved between servers with

different time zones.

-u, --user=name User for login if not current user.

-v, --verbose Print info about the various stages.

-V, --version Output version information and exit.

-w, --where=name Dump only selected records; QUOTES mandatory!

-X, --xml Dump a database as well formed XML.

Variables (--variable-name=value)

and boolean options {FALSE|TRUE} Value (after reading options)

--------------------------------- -----------------------------

all TRUE

all-databases FALSE

add-drop-database FALSE

add-drop-table TRUE

add-locks TRUE

allow-keywords FALSE

character-sets-dir (No default value)

comments TRUE

compatible (No default value)

compact FALSE

complete-insert FALSE

compress FALSE

create-options TRUE

databases FALSE

debug-info FALSE

default-character-set utf8

delayed-insert FALSE

delete-master-logs FALSE

disable-keys TRUE

extended-insert TRUE

fields-terminated-by (No default value)

fields-enclosed-by (No default value)

fields-optionally-enclosed-by (No default value)

fields-escaped-by (No default value)

first-slave FALSE

flush-logs FALSE

flush-privileges FALSE

force FALSE

hex-blob FALSE

host (No default value)

insert-ignore FALSE

lines-terminated-by (No default value)

lock-all-tables FALSE

lock-tables TRUE

log-error (No default value)

master-data 0

max_allowed_packet 25165824

net_buffer_length 1047551

no-autocommit FALSE

no-create-db FALSE

no-create-info FALSE

no-data FALSE

order-by-primary FALSE

port 3306

quick TRUE

quote-names TRUE

routines FALSE

set-charset TRUE

shared-memory-base-name (No default value)

single-transaction FALSE

socket (No default value)

ssl FALSE

ssl-ca (No default value)

ssl-capath (No default value)

ssl-cert (No default value)

ssl-cipher (No default value)

ssl-key (No default value)

ssl-verify-server-cert FALSE

tab (No default value)

triggers TRUE

tz-utc TRUE

user (No default value)

verbose FALSE

where (No default value)

6. 参考

php实现备份mysql数据库_MySQL_数据库专题_文档_源码天空.htm

php实现数据库备份导出成sql-代潇瑞博客.htm

php实现备份mysql数据库_MySQL_数据库专题_文档_源码天空.htm

标准输入、输出和错误输出 - huaijin - ITeye技术网站.htm

java备份还原mysql数据库(源码经过本人亲自测试通过)_功夫熊猫_新浪博客.htm

Java实现MySQL数据库备份_数据库技术_Linux公社-Linux系统门户网站.htm