Suttit upp databasen, gjort en privathjälp metod. fixat getCustomers

src/main/java/krusty/Database.java

@@ -6,6 +6,7 @@ import spark.Response;
 import java.util.Arrays;
 import java.util.Map;
 import java.util.TreeMap;
+import java.sql.*;
 
 import static krusty.Jsonizer.toJson;
 
@@ -13,20 +14,41 @@ public class Database {
 	/**
 	 * Modify it to fit your environment and then use this string when connecting to your database!
 	 */
-	private static final String jdbcString = "jdbc:mysql://localhost/krusty";
+	private static final String jdbcString = "jdbc:mysql://pusp.cs.lth.se:3306/iv4171bo";
 
 	// For use with MySQL or PostgreSQL
-	private static final String jdbcUsername = "<CHANGE ME>";
+	private static final String jdbcUsername = "iv4171bo";
-	private static final String jdbcPassword = "<CHANGE ME>";
+	private static final String jdbcPassword = "i2qtnm8z";
+
+	private Connection conn;
 
 	public void connect() {
 		// Connect to database here
+		try {
+        	// Connection strings for included DBMS clients:
+        	// [MySQL]       jdbc:mysql://[host]/[database]
+        	// [PostgreSQL]  jdbc:postgresql://[host]/[database]
+        	// [SQLite]      jdbc:sqlite://[filepath]
+        	
+        	// Use "jdbc:mysql://puccini.cs.lth.se/" + userName if you using our shared server
+        	// If outside, this statement will hang until timeout.
+            conn = DriverManager.getConnection 
+                (jdbcString, jdbcUsername, jdbcPassword);
+        }
+        catch (SQLException e) {
+            System.err.println(e);
+            e.printStackTrace();
+        }
 	}
 
 	// TODO: Implement and change output in all methods below!
 
 	public String getCustomers(Request req, Response res) {
-		return "{}";
+		String query = "SELECT name, address FROM Customer";
+		String title = "Customer";
+
+		return getJson(query, title);
+		
 	}
 
 	public String getRawMaterials(Request req, Response res) {
@@ -52,4 +74,15 @@ public class Database {
 	public String createPallet(Request req, Response res) {
 		return "{}";
 	}
+
+	private String getJson(String query, String title) { //privat hjälpmetod så man slipper kalla på jsonizer varje gång
+		try {
+			PreparedStatement stmt = conn.prepareStatement(query);
+			ResultSet rs = stmt.executeQuery();
+
+			return Jsonizer.toJson(rs, title);
+		} catch (SQLException e) {
+			return "";
+		}
+	}
 }