public static Connection getConn(){
Connection conn=null;
try {
Class.forName("com.mysql.jdbc.Driver");
String url ="jdbc:mysql://localhost:3306/all?"
+ "user=root&password=root";
conn = DriverManager.getConnection(url);
} catch (ClassNotFoundException e) {
System.out.println("driver not found");
} catch (SQLException e) {
System.out.println("connection error");
}
return conn;
}
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