dbutils.java

来自「电子通讯录实现网上保存朋友」· Java 代码 · 共 50 行

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package utils;

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;
import java.sql.Statement;
import java.util.logging.Level;
import java.util.logging.Logger;

/**
 *
 * @author Jason
 */
public class DBUtils {

    private static final String DRIVER =
            "com.mysql.jdbc.Driver";
    private static final String URL =
            "jdbc:mysql:///eabook";
    private static final String USERNAME = "root";
    private static final String PWD = "root";

    public static Connection getConnection() {
        Connection con = null;
        try {
            Class.forName(DRIVER);
            con = DriverManager.getConnection(URL, USERNAME, PWD);
        } catch (SQLException ex) {
            Logger.getLogger(DBUtils.class.getName()).log(Level.SEVERE, null, ex);
        } catch (ClassNotFoundException ex) {
            Logger.getLogger(DBUtils.class.getName()).log(Level.SEVERE, null, ex);
        }
        return con;
    }

    public static void closeAll(Statement stmt, Connection con) {
        try {
            if (stmt != null) stmt.close();
            if (con != null)  con.close();
        } catch (SQLException ex) {
            Logger.getLogger(DBUtils.class.getName())
                    .log(Level.SEVERE, null, ex);
        }
    }
}