public final static Connection getConnection() throws SQLException {
Connection conn = conns.get();
if(conn ==null || conn.isClosed()){
conn = _getConnection();
if(conn == null)
throw new SQLException("Unabled to get connection.");
conns.set(conn);
RequestContext ctx = RequestContext.get();
conn_context.put(Thread.currentThread().getId(), new ConnectionContext(
new Exception(),
(ctx!=null)?ctx.ip():null,
(ctx!=null)?ctx.uri():null,
(ctx!=null)?ctx.request().getParameterMap():null)
);
conn.prepareStatement("set NAMES utf8mb4").execute();
}
return (show_sql && !Proxy.isProxyClass(conn.getClass()))?new _DebugConnection(conn).getConnection():conn;
}
