Java链接Access工具类

Java链接Access工具类

import java.sql.Connection;

import java.sql.DriverManager;

import java.sql.PreparedStatement;

import java.sql.ResultSet;

import java.sql.SQLException;

import java.util.Properties;

public final class JdbcUtils {

private
static String url = "jdbc:odbc:MyAccess";

private
static String user = "";

private
static String password = "";

//
私有的构造函数，是该类在其他类中不能new出来

private
JdbcUtils() {

}

//
静态代码块，类加载的时候被加载

static
{

try {

Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");

} catch
(ClassNotFoundException e) {

e.printStackTrace();

}

}

//
获得链接

public
static Connection getConnection() {

Connection
conn = null;

try
{

// 防止中文乱码

Properties prop=new Properties();

prop.put("charSet", "gbk");

conn =
DriverManager.getConnection(url, prop);

} catch
(SQLException e) {

e.printStackTrace();

}

return
conn;

}

//
释放资源

public
static void free(Connection conn, PreparedStatement ps, ResultSet
rs) {

try {

if (rs !=
null) {

rs.close();

}

} catch
(SQLException e) {

e.printStackTrace();

} finally
{

try {

if (ps !=
null) {

ps.close();

}

} catch
(SQLException e) {

e.printStackTrace();

} finally
{

try {

if (conn !=
null) {

conn.close();

}

} catch
(SQLException e) {

e.printStackTrace();

}

}

}

}

}