Products0 - odczyt produktów z bazy

PC24-SklepWeb/src/main/java/sklep/web/Products0.java

@@ -2,6 +2,11 @@ package sklep.web;
 
 import java.io.IOException;
 import java.io.PrintWriter;
+import java.sql.Connection;
+import java.sql.DriverManager;
+import java.sql.ResultSet;
+import java.sql.SQLException;
+import java.sql.Statement;
 
 import jakarta.servlet.ServletException;
 import jakarta.servlet.annotation.WebServlet;
@@ -18,6 +23,22 @@ public class Products0 extends HttpServlet {
         response.setCharacterEncoding("UTF-8");
         PrintWriter out = response.getWriter();
         out.println("Zaraz odczytam produkty z bazy...");
+        
+        final String url = "jdbc:postgresql://localhost/sklep";
+        final String sql = "SELECT * FROM products";
+        
+        try(Connection c = DriverManager.getConnection(url , "kurs", "abc123");
+            Statement stmt = c.createStatement();
+            ResultSet rs = stmt.executeQuery(sql)) {
+            
+            while(rs.next()) {
+                out.printf("Produkt nr %s to jest %s za cenę %s\n",
+                        rs.getInt("product_id"), rs.getString("product_name"), rs.getBigDecimal("price"));
+            }
+        } catch(SQLException e) {
+            out.println("Wielka bieda!");
+            e.printStackTrace(out);
+        }
     }
 
 }