jsp数据库脱裤脚本,可脱mysql,oracle.

<%@ page import="java.sql.*" %>

<%@ page import="java.util.*" %>

<%@ page import="java.io.*" %>

<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%>

<%

try {

//备份文件存放的绝对路径

String backupDir = "c:/";

String ex=".txt";

String driver = "com.mysql.jdbc.Driver";

String url = "jdbc:mysql://localhost:3306/dbname";

String username = "user";

String password = "pass";

Class.forName(driver);

Connection conn = DriverManager.getConnection(url, username, password);

// Get tables

DatabaseMetaData dmd = conn.getMetaData();

ResultSet rs = dmd.getTables(null, null, "%", null);

ArrayList<String> tables = new ArrayList<String>();

while (rs.next()) {

tables.add(rs.getString(3));

}

rs.close();

ResultSetMetaData rsmd = null;

Statement stmt = conn.createStatement();

for (String table : tables) {

rs = stmt.executeQuery("SHOW CREATE TABLE " + table);

rsmd = rs.getMetaData();

while (rs.next()) {

/*

* mysql> SHOW CREATE TABLE t\G

*************************** 1. row ***************************

*        Table: t

*        Create Table: CREATE TABLE t (

*                        id int(11) default NULL auto_increment,

*                        s char(60) default NULL,

*                        PRIMARY KEY (id)

*                      ) TYPE=MyISAM

*/

// JDBC is 1-based, Java is not !?

//            osw.append(rs.getString(2) + "\n\n");

}

rs.close();

out.println("Dumping data for table " + table + "...<br />");

OutputStreamWriter osw = new OutputStreamWriter(new FileOutputStream(backupDir+table+ex), "UTF-8");

BufferedWriter bw=new BufferedWriter(osw);

rs = stmt.executeQuery("SELECT * FROM " + table);

rsmd = rs.getMetaData();

while (rs.next()) {

bw.append("INSERT INTO " + table + " VALUES(");

// JDBC is 1-based, Java is not !?

for (int col = 1; col <= rsmd.getColumnCount(); col++) {

bw.append("'");

if (rs.getString(col) == null)

bw.append("");

else

bw.append(rs.getString(col));

if (col == rsmd.getColumnCount())

bw.append("'");

else

bw.append("',");

}

bw.append(");");

bw.newLine();

}

bw.flush();

bw.close();

osw.close();

rs.close();

}

stmt.close();

out.println("backup is ok");

conn.close();

} catch (Exception e) {

response.setStatus(200);

e.printStackTrace();

}

out.println("<p><h3>finished</h3></p>");

%>