public void setusername(string username) { this.username = username; } public void setname(string name) { this.name = name; }

Transcription

1 User-klassen package domain; import dk.au.hum.imv.persistence.db.databasepersistent; public class User extends DatabasePersistent { private String username; private String name; private String address; private String password; private String phone; private String mail; public User(String username,string name, String address, String password, String phone, String mail) { this(username, name, address, password, phone, mail, DatabasePersistent.NOT_IN_DB_ID_VALUE); public User(String username, String name, String address, String password, String phone, String mail, long databaseid) { super(databaseid); this.username = username; this.name = name; this.address = address; this.password = password; this.phone = phone; this.mail = mail; public String getusername() { return username; public void setusername(string username) { this.username = username; public String getname() { return name; public void setname(string name) { this.name = name; public String getaddress() { return address; public void setaddress(string adress) { this.address = adress; public String getpassword() { return password; public void setpassword(string password) { this.password = password; public String getphone() { return phone; public void setphone(string phone) { this.phone = phone;

2 public void setmail(string mail) { this.mail = mail; public String tostring (){ return username+" hedder: "+name; UserMapper-klassen package mappers; import java.util.arraylist; import java.sql.connection; import java.sql.preparedstatement; import java.sql.resultset; import java.sql.sqlexception; import dk.au.hum.imv.persistence.db.jdbcconnectionfactory; import domain.user; public class UserMapper { public static void saveuser (User user) { bruger. /*Metode til at gemme en ny bruger eller rette oplysninger på en eksisterende * Hvis denne er i databasen er det en rettelse vi skal lave, altså UPDATE * Hvis den ikke er i databasen er det en ny indsættelse, altså INSERT INTO * */ String sql = ""; if (!user.isindatabase()) { //insert sql = "INSERT INTO user (username, password, name, address, phone, mail) " + "VALUES (?,?,?,?,?,?)"; else { //update sql = "UPDATE user SET username =?, password =?, name =?, address =?, phone =?, mail=?" + "WHERE id =?"; prep.setstring(1, user.getusername()); prep.setstring(2, user.getpassword()); prep.setstring(3, user.getname()); prep.setstring(4, user.getaddress()); prep.setstring(5, user.getphone()); prep.setstring(6, user.getmail()); if (user.isindatabase()) { prep.setlong(6, user.getdatabaseid()); prep.executeupdate(); catch (SQLException e) { finally {

3 //Metode til at hente alle brugere fra databasen public static ArrayList<User> getallusers() { ArrayList<User> result = new ArrayList<User>(); String sql = "SELECT * FROM user"; ResultSet res = prep.executequery(); while (res.next()) { User user = createuserfromresultset(res); result.add(user); catch (SQLException e) { finally { return result; //Metode til at finde en bruger ud fra hendes ID i databasen public static User getuserbyid(long objektid) { User result = null; String sql = "SELECT * FROM user WHERE id =?"; prep.setlong(1, objektid); ResultSet res = prep.executequery(); while (res.next()) { result = createuserfromresultset(res); catch (SQLException e) { finally { return result; //Metode til at oprette et user-objekt fra et sæt data fra db static User createuserfromresultset(resultset res) throws SQLException { User u = null; String username = res.getstring("user.username"); String name = res.getstring("user.name"); String address = res.getstring("user.address"); String phone = res.getstring("user.phone"); String password = res.getstring("user.password"); String mail = res.getstring("user.mail"); long id = res.getlong("user.id"); mail, id); u = new User(userName, name, address, phone, password, return u;

4 Test-klassen package Test; import java.util.arraylist; import mappers.usermapper; import dk.au.hum.imv.persistence.db.jdbcconnectionfactory; import domain.user; public class Test { public static void main(string[] args) { String url = "jdbc:mysql://student.hum.au.dk:3306/piaschoett"; String username = "piaschoett"; String password = "hj7hsboa"; String dbdriver = "com.mysql.jdbc.driver"; JDBCConnectionFactory.initManualConnectionHandling(url, username, password, dbdriver); User user1 = UserMapper.getUserById(1); System.out.println(user1); User pia = new User("piaschoett", "Pia Gregersen", "Silkeborgvej Horsens","xxx", " ", "piaschoett@gmail.com"); UserMapper.saveUser(pia); User user3 = UserMapper.getUserById(3); System.out.println(user3); ArrayList<User> allusers = UserMapper.getAllUsers(); System.out.println(allUsers);

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