diff --git a/DzieCoin.iml b/DzieCoin.iml
index b1c395b..dbc5699 100644
--- a/DzieCoin.iml
+++ b/DzieCoin.iml
@@ -11,5 +11,7 @@
+
+
\ No newline at end of file
diff --git a/pom.xml b/pom.xml
index fe91a01..89b4625 100644
--- a/pom.xml
+++ b/pom.xml
@@ -13,4 +13,12 @@
19
UTF-8
+
+
+
+ mysql
+ mysql-connector-java
+ 8.0.30
+
+
\ No newline at end of file
diff --git a/src/main/java/pl/mikorosa/dziecoin/Main.java b/src/main/java/pl/mikorosa/dziecoin/Main.java
index 7ef2b1f..67b2fae 100644
--- a/src/main/java/pl/mikorosa/dziecoin/Main.java
+++ b/src/main/java/pl/mikorosa/dziecoin/Main.java
@@ -1,5 +1,6 @@
package pl.mikorosa.dziecoin;
+import pl.mikorosa.dziecoin.database.DatabaseConnection;
import pl.mikorosa.dziecoin.gui.MainFrame;
import java.util.ArrayList;
@@ -8,8 +9,15 @@ import java.util.List;
public class Main {
public static int difficulty;
public static Blockchain blockchain;
+ public static DatabaseConnection db;
public static void main(String[] args) {
+ db = new DatabaseConnection();
+
+ System.out.println(db.query("SELECT * FROM blocks"));
+ System.out.println(db.query("SELECT * FROM transactions"));
+ System.out.println(db.query("SELECT * FROM nfts"));
+
Wallet w1 = new Wallet();
Wallet w2 = new Wallet();
Wallet w3 = new Wallet();
diff --git a/src/main/java/pl/mikorosa/dziecoin/database/DatabaseConnection.java b/src/main/java/pl/mikorosa/dziecoin/database/DatabaseConnection.java
new file mode 100644
index 0000000..66d68a0
--- /dev/null
+++ b/src/main/java/pl/mikorosa/dziecoin/database/DatabaseConnection.java
@@ -0,0 +1,100 @@
+package pl.mikorosa.dziecoin.database;
+
+import java.sql.*;
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+public class DatabaseConnection {
+ private Connection connection = null;
+ private Statement statement = null;
+ public DatabaseConnection() {
+ System.out.println("Connecting to database...");
+ try {
+ Class.forName("com.mysql.cj.jdbc.Driver");
+ connection = DriverManager.getConnection("jdbc:mysql://helium.mikorosa.pl:3306/dziecoin", "dziecoin", "Y6seMx#HwgYU");
+ System.out.println("Connected");
+ } catch(ClassNotFoundException e) {
+ System.out.println("Error while setting up JDBC driver: " + e.getMessage());
+ e.printStackTrace();
+ } catch(SQLException e) {
+ System.out.println("Error while connecting to database: " + e.getMessage());
+ e.printStackTrace();
+ }
+ }
+
+ public List