java jdbc

摘要: java jdbc

import java.sql.Connection;

import java.sql.DriverManager;

import java.sql.ResultSet;

import java.sql.SQLException;

import java.sql.Statement;

public class JdbcUtils {

private static String url = "jdbc:mysql://localhost:3306/stswdb?useUnicode=true&characterEncoding=utf-8";

private static String user = "root";

private static String pwd = "";

private static String driverName = "com.mysql.jdbc.Driver";

static {

try {

Class.forName(driverName);

} catch (ClassNotFoundException e) {

e.printStackTrace();

}

}

public static Connection getConnection() throws SQLException {

return DriverManager.getConnection(url, user, pwd);

}

public void free(ResultSet rs, Statement st, Connection conn) {

try {

if (rs != null)

rs.close();

if (st != null)

st.close();

if (conn != null)

conn.close();

} catch (SQLException e) {

e.printStackTrace();

}

}

}