Mysql不同版本的链接
mysql5.0
private static final String DRIVER = "com.mysql.jdbc.Driver";
private static final String URL = "jdbc:mysql://localhost:3306/bank?useUnicode=true&characterEncoding=utf8";
private static final String USERNAME = "root";
private static final String PASSWORD = "";
mysql8.0
private static final String DRIVER = "com.mysql.cj.jdbc.Driver";
private static final String URL = "jdbc:mysql://localhost:3306/bank?useUnicode=true&characterEncoding=utf8&serverTimezone=UTC&useSSL=false";
private static final String USERNAME = "root";
private static final String PASSWORD = "";
package com.llk.bk.common;
import java.sql.*;
public class DBHelper {
private static final String DRIVER = "com.mysql.cj.jdbc.Driver";
private static final String URL = "jdbc:mysql://localhost:3306/bank?useUnicode=true&characterEncoding=utf8&serverTimezone=UTC&useSSL=false";
private static final String USERNAME = "root";
private static final String PASSWORD = "123456";
static {
try {
Class.forName(DRIVER);
} catch (ClassNotFoundException e) {
e.printStackTrace();
}
}
public static Connection getConnection() throws SQLException {
return DriverManager.getConnection(URL, USERNAME, PASSWORD);
}
public static void close(Connection conn, Statement pst) {
try {
if (pst != null) {
pst.close();
}
if (conn != null) {
conn.close();
}
} catch (SQLException throwables) {
throwables.printStackTrace();
}
}
public static void close(Connection conn, Statement pst, ResultSet rs){
try {
if(rs!=null){
rs.close();
}
} catch (SQLException throwables) {
throwables.printStackTrace();
}
close(conn,pst);
}
}
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