Studium/Internet-Technologien
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+ automatic inserts

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This commit is contained in:
Johannes Theiner 2019-04-15 18:36:03 +02:00
parent ebce4cd0f0
commit 388459b6a2
3 changed files with 51 additions and 2 deletions
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28
src/main/java/de/hsel/itech/db/Database.java
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@ -4,6 +4,9 @@ import de.hsel.itech.config.Configuration;
import org.jetbrains.annotations.Nullable;
import org.mariadb.jdbc.MariaDbPoolDataSource;
import java.io.BufferedReader;
import java.io.FileReader;
import java.io.IOException;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
@ -18,15 +21,38 @@ import java.sql.SQLException;
*/
public class Database {
private static Database instance;
public static Database getInstance() {
if(instance == null)
instance = new Database();
return instance;
}
private MariaDbPoolDataSource dataSource;
public Database() {
private Database() {
Configuration config = Configuration.get();
dataSource = new MariaDbPoolDataSource("jdbc:mysql://" + config.getDatabase().getHostname() + ":" + config.getDatabase().getPort() + "/" + config.getDatabase().getDatabase());
try {
dataSource.setUser(config.getDatabase().getUsername());
dataSource.setPassword(config.getDatabase().getPassword());
dataSource.initialize();
Connection connection = getConnection();
assert connection != null;
try(BufferedReader br = new BufferedReader(new FileReader(getClass().getClassLoader().getResource("database.sql").getFile()))) {
for (String line = br.readLine(); line != null; line = br.readLine()) {
PreparedStatement statement = connection.prepareStatement(line);
statement.executeUpdate();
statement.close();
}
} catch (IOException e) {
e.printStackTrace();
}
finally {
connection.close();
}
} catch (SQLException e) {
e.printStackTrace();
}

2
src/main/java/de/hsel/itech/servlet/Database.java
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@ -33,7 +33,7 @@ public class Database extends HttpServlet {
out.println("<title>Hallo Welt!</title>");
out.println("</head>");
out.println("<body>");
out.println("<h1>" + new de.hsel.itech.db.Database().getHello() + "</h1>");
out.println("<h1>" + de.hsel.itech.db.Database.getInstance().getHello() + "</h1>");
out.println("</body>");
out.println("</html>");
}

23
src/main/resources/database.sql Normal file
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@ -0,0 +1,23 @@
CREATE TABLE IF NOT EXISTS test(id bigint, primary key auto_increment, hello varchar(25));
INSERT IGNORE INTO test(hello) values ('Welt');
CREATE TABLE IF NOT EXISTS book (id bigint primary key auto_increment, title varchar(50), description varchar(500) unique , price int, year year, publisher bigint, category bigint, image varchar(11) unique);
CREATE TABLE IF NOT EXISTS publisher(id bigint primary key auto_increment, name varchar(50) unique);
CREATE TABLE IF NOT EXISTS author(id bigint primary key auto_increment, name varchar(50) unique);
CREATE TABLE IF NOT EXISTS author_book(author bigint, book bigint, primary key(author, book), foreign key (author) REFERENCES author(id), foreign key (book) references book(id));
CREATE TABLE IF NOT EXISTS category(id bigint primary key auto_increment, name varchar(25), image varchar(11));
CREATE TABLE IF NOT EXISTS user(id bigint primary key auto_increment, name varchar(50), email varchar(255), password binary(40), type tinyint);
CREATE TABLE IF NOT EXISTS address(id bigint primary key auto_increment, street varchar(100), number smallint, zipCode smallint, city varchar(50));
CREATE TABLE IF NOT EXISTS user_address(id bigint primary key auto_increment, user bigint, address bigint, foreign key (user) REFERENCES user(id), foreign key (address) references address(id));
CREATE TABLE IF NOT EXISTS payment_type(id bigint primary key auto_increment, name varchar(25) unique);
INSERT IGNORE INTO payment_type (name) values ('CreditCard');
INSERT IGNORE INTO payment_type (name) values ('DebitCard');
INSERT IGNORE INTO payment_type (name) values ('Invoice');
INSERT IGNORE INTO payment_type (name) values ('PayPal');
CREATE TABLE IF NOT EXISTS payment_debit(id bigint primary key auto_increment, iban varchar(34), bic varchar(8), owner varchar(50));
CREATE TABLE IF NOT EXISTS payment_credit(id bigint primary key auto_increment, number varchar(19), owner varchar(50), expiration DATE, checksum tinyint);
CREATE TABLE IF NOT EXISTS payment_invoice(id bigint primary key auto_increment);
CREATE TABLE IF NOT EXISTS payment_paypal(id bigint primary key auto_increment, mail varchar(255), auth varchar(255));
CREATE TABLE IF NOT EXISTS `order`(id bigint primary key auto_increment, user bigint, price bigint);
CREATE TABLE IF NOT EXISTS order_book(`order` bigint, book bigint, count tinyint, primary key (`order`, book, count), foreign key (`order`) references `order`(id), foreign key (book) references `order`(id));
CREATE TABLE IF NOT EXISTS shopping_cart(id bigint primary key auto_increment);
CREATE TABLE IF NOT EXISTS cart_books(user bigint, book bigint, count tinyint, primary key(book, user), foreign key (book) REFERENCES book(id), foreign key (user) REFERENCES user(id));