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<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<%@ page import ="java.sql.Connection" %>
<%@ page import ="java.sql.DriverManager" %>
<%@ page import ="java.sql.PreparedStatement" %>
<%@ page import ="java.sql.ResultSet" %>
<%@ page import ="java.util.UUID" %>
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Insert title here</title>
</head>
<body>
<%
// Parameter lesen
UUID id = UUID.fromString(request.getParameter("id"));
String newTitle = request.getParameter("title");
int newYear = Integer.parseInt(request.getParameter("jahr"));
Class.forName("org.postgresql.Driver");
String url = "jdbc:postgresql://localhost/Aebi1?port=5432&user=postgres&password=123456";
Connection c = DriverManager.getConnection(url);
PreparedStatement pst= c.prepareStatement("UPDATE books SET title = ?, year = ? WHERE ID =?");
pst.setObject(3, id);
pst.setString(1, newTitle);
pst.setInt(2, newYear);
pst.execute();
//wenn du ein neues Buch hinzufügst, dann bist du sofort zu dem index.jsp Seite redirect
response.sendRedirect("index.jsp");
%>
<!--<p>New book inserted!</p>
<p><a href="index.jsp">Go back.</a>-->
</body>
</html>