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Um die Zeit steht die erste Rauchpause kurz bevor.Im Büro muss ich ja erst gegen 8 erscheinen.
Ich jammer nicht!ich will auch morgens jammern wegen Arbeit, 8 h durchziehen und jammern wegen Arbeit und wenig Zeit und überhaupt ......![]()

Frustsaufen?Die haben alle einen Bierbauch und ich weiß auch genau wovon.![]()
public class DatabaseConnection {
private Connection connection;
/**
* Constructor
* Öffnet die Datenbankverbindung
*/
public DatabaseConnection() {
final String URL = new String("jdbc:mysql://127.0.0.1/schema");
final String USER = new String("root");
final String PASSWORD = new String("admin");
try {
Class.forName("com.mysql.jdbc.Driver").newInstance();
} catch (ClassNotFoundException e) {
e.printStackTrace();
} catch (InstantiationException e) {
e.printStackTrace();
} catch (IllegalAccessException e) {
e.printStackTrace();
}
try {
connection = DriverManager.getConnection(URL, USER, PASSWORD);
} catch (SQLException e) {
e.printStackTrace();
}
}
/**
* Öffentliche Methode, welche die Verbindung wieder schließt.
*/
public void closeConnection() {
try {
connection.close();
} catch (SQLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
public EfService getEfService() throws SQLException {
Statement statement = connection.createStatement();
ResultSet result = statement.executeQuery("SELECT * FROM `prefix.tech_dat` WHERE `key` LIKE 'ef%'");
String id = null;
String pw = null;
String kennung = null;
while (result.next()) {
if ("ef_kennung".equals(result.getString("key"))) {
kennung = result.getString("value");
}
if ("ef_id".equals(result.getString("key"))) {
id = result.getString("value");
}
if ("ef_pw".equals(result.getString("key"))) {
pw = result.getString("value");
}
}
EfService service = new EfService(id, pw, kennung);
return service;
}
public long count(String count, String from, Map<String, String> where) throws SQLException {
Statement statement = connection.createStatement();
StringBuffer query = new StringBuffer();
query.append("select ");
if (count == null) {
query.append("count(*) ");
} else {
query.append("count(").append(count).append(") ");
}
query.append(" as anzahl ");
query.append(" from `").append(from).append("`");
query.append(" where ");
Iterator<Entry<String, String>>i2 = where.entrySet().iterator();
while (i2.hasNext()) {
Map.Entry<String, String> me = i2.next();
try {
new Double(me.getValue());
query.append("`").append(me.getKey()).append("` = ").append(me.getValue());
} catch (NumberFormatException nfe) {
query.append("`").append(me.getKey()).append("` = '").append(me.getValue()).append("'");
}
if (i2.hasNext()) {
query.append(" and ");
}
}
ResultSet result = statement.executeQuery(query.toString());
while (result.next()) {
return result.getLong("anzahl");
}
return 0;
}
public ResultSet select(List<String> select, List<String> from, Map<String, String> where, String add) throws SQLException {
Statement statement = connection.createStatement();
StringBuffer query = new StringBuffer();
query.append("select ");
if (select == null) {
query.append("* ");
} else {
Iterator<String> iSelect = select.iterator();
while (iSelect.hasNext()) {
query.append(iSelect.next());
if (iSelect.hasNext()) {
query.append(", ");
}
}
}
query.append(" from ");
Iterator<String> i = from.iterator();
while (i.hasNext()) {
query.append("`").append(i.next()).append("`");
if (i.hasNext()) {
query.append(", ");
}
}
query.append(" where ");
Iterator<Entry<String, String>>i2 = where.entrySet().iterator();
while (i2.hasNext()) {
Map.Entry<String, String> me = i2.next();
try {
new Double(me.getValue());
query.append("`").append(me.getKey()).append("` = ").append(me.getValue());
} catch (NumberFormatException nfe) {
query.append("`").append(me.getKey()).append("` = '").append(me.getValue()).append("'");
}
if (i2.hasNext()) {
query.append(" and ");
}
}
if (add != null) {
query.append(add);
}
// System.out.println(query.toString());
return statement.executeQuery(query.toString());
}
public ResultSet doFreeResultSet(String query) throws SQLException {
Statement statement = connection.createStatement();
return statement.executeQuery(query);
}
public void insert(String table, Map<String, String> values) throws SQLException {
Statement statement = connection.createStatement();
StringBuffer query = new StringBuffer();
StringBuffer spalte = new StringBuffer();
StringBuffer value = new StringBuffer();
Iterator<Entry<String, String>>i = values.entrySet().iterator();
while (i.hasNext()) {
Map.Entry<String, String> me = i.next();
spalte.append(me.getKey());
try {
new Double(me.getValue());
value.append(me.getValue());
} catch (NumberFormatException nfe) {
value.append("'").append(me.getValue()).append("'");
}
if (i.hasNext()) {
spalte.append(", ");
value.append(", ");
}
}
query.append("insert into `").append(table).append("` (").append(spalte).append(") values (").append(value).append(")");
//System.out.println(query.toString());
statement.execute(query.toString(), Statement.RETURN_GENERATED_KEYS );
}
public int update(String table, Map<String, String> set, Map<String, String> where) throws SQLException {
Statement statement = connection.createStatement();
StringBuffer query = new StringBuffer();
query.append("update `").append(table).append("` SET ");
Iterator<Entry<String, String>>i = set.entrySet().iterator();
while (i.hasNext()) {
Map.Entry<String, String> me = i.next();
try {
new Double(me.getValue());
query.append("`").append(me.getKey()).append("` = ").append(me.getValue());
} catch (NumberFormatException nfe) {
query.append("`").append(me.getKey()).append("` = '").append(me.getValue()).append("'");
}
if (i.hasNext()) {
query.append(", ");
}
}
query.append(" where ");
i = where.entrySet().iterator();
while (i.hasNext()) {
Map.Entry<String, String> me = i.next();
try {
new Double(me.getValue());
query.append("`").append(me.getKey()).append("` = ").append(me.getValue());
} catch (NumberFormatException nfe) {
query.append("`").append(me.getKey()).append("` = '").append(me.getValue()).append("'");
}
if (i.hasNext()) {
query.append(" and ");
}
}
// System.out.println(query.toString());
return statement.executeUpdate(query.toString(), Statement.RETURN_GENERATED_KEYS );
}
}

Siehst du!geht nicht.![]()
Was soll ich sehen?Siehst du!
Funktioniert nicht.Was soll ich sehen?