package com.mescs.baseinfo.utils;
import java.sql.Connection;
import java.sql.DatabaseMetaData;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
import java.util.ArrayList;
import java.util.List;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public
class
DatabaseUtil {
private
final
static
Logger LOGGER = LoggerFactory.getLogger(DatabaseUtil.
class
);
private
static
final
String DRIVER =
"org.firebirdsql.jdbc.FBDriver"
;
private
static
final
String URL =
"jdbc:firebirdsql:embedded:mescs.fdb?lc_ctype=UTF8"
;
private
static
final
String USERNAME =
"root"
;
private
static
final
String PASSWORD =
"root"
;
private
static
final
String SQL =
"DELETE FROM "
;
static
{
try
{
Class.forName(DRIVER);
}
catch
(ClassNotFoundException e) {
LOGGER.error(
"数据库驱动加载失败===>>>"
, e);
}
}
public
static
Connection getConnection() {
Connection conn = null;
try
{
conn = DriverManager.getConnection(URL, USERNAME, PASSWORD);
}
catch
(SQLException e) {
LOGGER.error(
"数据库连接失败===>>>"
, e);
}
return
conn;
}
public
static
void closeConnection(Connection conn) {
if
(conn != null) {
try
{
conn.close();
}
catch
(SQLException e) {
LOGGER.error(
"数据库关闭失败===>>>"
, e);
}
}
}
public
static
List<String> getTableNames() {
List<String> tableNames =
new
ArrayList<String>();
Connection conn = getConnection();
ResultSet rs = null;
try
{
DatabaseMetaData db = conn.getMetaData();
rs = db.getTables(null, null, null,
new
String[] {
"TABLE"
});
while
(rs.next()) {
tableNames.add(rs.getString(3));
}
}
catch
(SQLException e) {
LOGGER.error(
"获取数据库表名失败===>>>"
, e);
} finally {
try
{
rs.close();
closeConnection(conn);
}
catch
(SQLException e) {
LOGGER.error(
"关闭数据库失败===>>>"
, e);
}
}
return
tableNames;
}
public
static
void emptyDatabase() throws SQLException {
List<String> tableNames = getTableNames();
Connection conn = getConnection();
PreparedStatement pStemt = null;
for
(String table:tableNames){
if
(!table.equals(
"SYSPARAM"
) && !table.equals(
"T_CLEAR_DATA"
)){
String tableSql = SQL + table;
try
{
pStemt = conn.prepareStatement(tableSql);
Statement stmt=conn.createStatement();
stmt.executeUpdate(tableSql);
}
catch
(SQLException e) {
e.printStackTrace();
}
}
}
conn.close();
}
}