Here is the error,
here is the code ,
protected void Button1_Click(object sender, EventArgs e)
{
OracleConnection con;
try
{
con = new OracleConnection();
con.ConnectionString = "data source=(DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=xxxx)(PORT=1551)) (CONNECT_DATA=(SERVICE_NAME=xxx)));user id=xxx;password=xxx;";
con.Open();
message.Text = con.ServerVersion;
con.Dispose();
}
catch (Exception ex)
{
message.Text = ex.Message.ToString();
}
finally
{
// con.Dispose();
}
}
Related
I'm implementing a mail Sender, near 1'6000.000 mails (with images and PDF) in one day per month (closing month extract), the mails are about 12 products...
I need to fill a Message Scratch per product... in order to not read (per email) else per product.
I'm trying to implement cloning javax.mail.Message and javax.mail.Multipart in order to be faster.
AddContent to Multipart
public static void addContent(final Multipart multipart, String contenidoCorreo) throws Exception {
MimeBodyPart mimeBodyPart = new PreencodedMimeBodyPart("8bit");
mimeBodyPart.setText(contenidoCorreo, "iso-8859-1", "html");
multipart.addBodyPart(mimeBodyPart, 0);
}
Add Image per Bytes
public static void addImageToMultipart(final Multipart multipart, byte[] contenidoImagen, String nombreImagen) throws Exception {
MimeBodyPart imagenMimeBodyPart = new MimeBodyPart();
try {
ByteArrayDataSource byteArrayDataSource = new ByteArrayDataSource(contenidoImagen, "image/*");
imagenMimeBodyPart.setDataHandler(new DataHandler(byteArrayDataSource));
imagenMimeBodyPart.setFileName(nombreImagen);
imagenMimeBodyPart.setContentID("<" + nombreImagen + ">");
imagenMimeBodyPart.setDisposition(MimeBodyPart.INLINE);
multipart.addBodyPart(imagenMimeBodyPart);
} catch (Exception e) {
e.printStackTrace();
throw new RuntimeException(e.getMessage());
}
}
AddPDF per File
public static void addPDF(final Multipart multipart, String ruta, String nombre) throws Exception {
Path path = Paths.get(ruta, nombre);
if (path.toFile().exists()) {
MimeBodyPart preencodedMimeBodyPart = new PreencodedMimeBodyPart("base64");
preencodedMimeBodyPart.attachFile(path.toFile());
preencodedMimeBodyPart.setFileName(nombre);
preencodedMimeBodyPart.setHeader("Content-Type", "application/pdf");
preencodedMimeBodyPart.setDisposition(MimeBodyPart.ATTACHMENT);
multipart.addBodyPart(preencodedMimeBodyPart);
MimeBodyPart pdfMimeBodyPart = new MimeBodyPart();
}
My Cloning Message
public static Message cloneMessage(Message source) {
//Multiple and Separated Exceptions because maybe not all properties are defined in some time.
Message target = new MimeMessage(source.getSession());
try {
if (source.getFrom() != null && source.getFrom().length > 0) {
Address address = (source.getFrom()[0]);
target.setFrom(new InternetAddress(((InternetAddress) address).getAddress(), ((InternetAddress) address).getPersonal()));
}
} catch (Exception ex) {
//Handle Exception
}
try {
target.setSentDate((Date) (source.getSentDate().clone()));
} catch (MessagingException ex) {
//Handle Exception
}
try {
target.setRecipients(Message.RecipientType.TO, target.getRecipients(Message.RecipientType.TO).clone());
} catch (MessagingException ex) {
//Handle Exception
}
try {
Enumeration numerationHeaders = source.getAllHeaders();
while (numerationHeaders.hasMoreElements()) {
Header header = (Header) numerationHeaders.nextElement();
target.addHeader(header.getName(), header.getValue());
}
} catch (MessagingException ex) {
//Handle Exception
}
try {
target.setSubject(new String(source.getSubject()));
} catch (MessagingException ex) {
//Handle Exception
}
try {
target.setContent(cloneMultipart((Multipart)(source.getContent())));
} catch (Exception ex) {
//Handle Exception
}
return target;
}
Cloning Multipart
public static Multipart cloneMultipart(Multipart source) {
MimeMultipart target = new MimeMultipart();
try {
for (int i = 0; i < source.getCount(); i++) {
MimeBodyPart mimeBodyPart = (MimeBodyPart)source.getBodyPart(i);
mimeBodyPart //?????
}
} catch (MessagingException ex) {
//Handle Exception
}
return target;
}
How cloning Multipart?
some advice to clone Message?
How detect the Content (the used with addContent method) has been added?
i want a button that will send a data to a Bluetooth device when the button get touched once. and after removing the touch the button should send another data once. it's like when i touch the button and hold it, it'll only send a string like 'A' and when the touch removed it'll send another string like 'C'. i am a beginner. here is my code with two button but now i want only one button to control.
public class MainActivity extends Activity {
private static final String TAG = "bluetooth1";
Button btnOn, btnOff;
private BluetoothAdapter btAdapter = null;
private BluetoothSocket btSocket = null;
private OutputStream outStream = null;
private static final UUID MY_UUID = UUID.fromString("00001101-0000-1000-8000-00805F9B34FB");
private static String address = "98:D3:31:30:27:BD";
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
btnOn = (Button) findViewById(R.id.btnOn);
btnOff = (Button) findViewById(R.id.btnOff);
btAdapter = BluetoothAdapter.getDefaultAdapter();
checkBTState();
// i want one button here for touch event
btnOn.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
sendData("A");
Toast.makeText(getBaseContext(), "Turn on LED", Toast.LENGTH_SHORT).show();
}
});
btnOff.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
sendData("C");
Toast.makeText(getBaseContext(), "Turn off LED", Toast.LENGTH_SHORT).show();
}
});
}
private BluetoothSocket createBluetoothSocket(BluetoothDevice device) throws IOException {
if(Build.VERSION.SDK_INT >= 10){
try {
final Method m = device.getClass().getMethod("createInsecureRfcommSocketToServiceRecord", new Class[] { UUID.class });
return (BluetoothSocket) m.invoke(device, MY_UUID);
} catch (Exception e) {
Log.e(TAG, "Could not create Insecure RFComm Connection",e);
}
}
return device.createRfcommSocketToServiceRecord(MY_UUID);
}
#Override
public void onResume() {
super.onResume();
Log.d(TAG, "...onResume - try connect...");
BluetoothDevice device = btAdapter.getRemoteDevice(address);
try {
btSocket = createBluetoothSocket(device);
} catch (IOException e1) {
errorExit("Fatal Error", "In onResume() and socket create failed: " + e1.getMessage() + ".");
}
btAdapter.cancelDiscovery();
Log.d(TAG, "...Connecting...");
try {
btSocket.connect();
Log.d(TAG, "...Connection ok...");
} catch (IOException e) {
try {
btSocket.close();
} catch (IOException e2) {
errorExit("Fatal Error", "In onResume() and unable to close socket during connection failure" + e2.getMessage() + ".");
}
}
Log.d(TAG, "...Create Socket...");
try {
outStream = btSocket.getOutputStream();
} catch (IOException e) {
errorExit("Fatal Error", "In onResume() and output stream creation failed:" + e.getMessage() + ".");
}
}
#Override
public void onPause() {
super.onPause();
Log.d(TAG, "...In onPause()...");
if (outStream != null) {
try {
outStream.flush();
} catch (IOException e) {
errorExit("Fatal Error", "In onPause() and failed to flush output stream: " + e.getMessage() + ".");
}
}
try {
btSocket.close();
} catch (IOException e2) {
errorExit("Fatal Error", "In onPause() and failed to close socket." + e2.getMessage() + ".");
}
}
private void checkBTState() {
if(btAdapter==null) {
errorExit("Fatal Error", "Bluetooth not support");
} else {
if (btAdapter.isEnabled()) {
Log.d(TAG, "...Bluetooth ON...");
} else {
Intent enableBtIntent = new Intent(BluetoothAdapter.ACTION_REQUEST_ENABLE);
startActivityForResult(enableBtIntent, 1);
}
}
}
private void errorExit(String title, String message){
Toast.makeText(getBaseContext(), title + " - " + message, Toast.LENGTH_LONG).show();
finish();
}
private void sendData(String message) {
byte[] msgBuffer = message.getBytes();
Log.d(TAG, "...Send data: " + message + "...");
try {
outStream.write(msgBuffer);
} catch (IOException e) {
String msg = "In onResume() and an exception occurred during write: " + e.getMessage();
if (address.equals("00:00:00:00:00:00"))
msg = msg + ".\n\nUpdate your server address from 00:00:00:00:00:00 to the correct address on line 35 in the java code";
msg = msg + ".\n\nCheck that the SPP UUID: " + MY_UUID.toString() + " exists on server.\n\n";
errorExit("Fatal Error", msg);
}
}
}
i solve the following by this and it's works perfect
public boolean onTouch(View v, MotionEvent event) {
if (event.getAction() == MotionEvent.ACTION_DOWN ) {
sendData("A");
return true;
}
if (event.getAction() == MotionEvent.ACTION_UP) {
sendData("C");
return true;
}
return false;
}
});
Here is the stack trace:
java.sql.SQLException
at org.apache.tomcat.jdbc.pool.PooledConnection.connectUsingDriver(PooledConnection.java:290)
at org.apache.tomcat.jdbc.pool.PooledConnection.connect(PooledConnection.java:182)
at org.apache.tomcat.jdbc.pool.ConnectionPool.createConnection(ConnectionPool.java:702)
at org.apache.tomcat.jdbc.pool.ConnectionPool.borrowConnection(ConnectionPool.java:634)
at org.apache.tomcat.jdbc.pool.ConnectionPool.init(ConnectionPool.java:488)
at org.apache.tomcat.jdbc.pool.ConnectionPool.<init>(ConnectionPool.java:144)
at org.apache.tomcat.jdbc.pool.DataSourceProxy.pCreatePool(DataSourceProxy.java:116)
at org.apache.tomcat.jdbc.pool.DataSourceProxy.createPool(DataSourceProxy.java:103)
at org.apache.tomcat.jdbc.pool.DataSourceProxy.getConnection(DataSourceProxy.java:127)
at com.boeing.DBReader.Server.makeConnection(Server.java:85)
at com.boeing.DBReader.Server.<init>(Server.java:26)
at com.boeing.DBReader.Reader.main(Reader.java:13)
Caused by: java.lang.NullPointerException
at oracle.jdbc.driver.OracleDriver.connect(OracleDriver.java:395)
at org.apache.tomcat.jdbc.pool.PooledConnection.connectUsingDriver(PooledConnection.java:278)
... 11 more
Connection closed
And here is the code:
public class Server
{
private DataSource datasource;
public Server()
{
try
{
createConnectionToDatabase();
} catch (Exception e)
{
// TODO Auto-generated catch block
System.out.println("Exception:" + e.toString());
}
makeConnection();
}
private void createConnectionToDatabase() throws Exception
{
String connectionString = null;
String login = null;
String password = null;
System.out.println("In createConnectionToDatabase");
PoolProperties p = new PoolProperties();
p.setUrl("jdbc:oracle:thin:#***");
p.setUrl(connectionString);
p.setDriverClassName("oracle.jdbc.OracleDriver");
p.setUsername("**");
p.setPassword("**");
p.setJmxEnabled(true);
p.setTestWhileIdle(false);
p.setTestOnBorrow(true);
p.setValidationQuery("SELECT 1 from dual");
p.setTestOnReturn(false);
p.setValidationInterval(30000);
p.setTimeBetweenEvictionRunsMillis(30000);
p.setMaxActive(100);
p.setInitialSize(10);
p.setMaxWait(10000);
p.setRemoveAbandonedTimeout(600);
p.setMinEvictableIdleTimeMillis(30000);
p.setMinIdle(10);
p.setLogAbandoned(true);
p.setRemoveAbandoned(true);
p.setJdbcInterceptors("org.apache.tomcat.jdbc.pool.interceptor.ConnectionState;"
+ "org.apache.tomcat.jdbc.pool.interceptor.StatementFinalizer");
datasource = new DataSource();
datasource.setPoolProperties(p);
}
private void closeConnection(Connection con) {
if (con != null) {
try {
con.close();
} catch (Exception ignore) {
System.out.println("Could not close connection, WTF?");
}
}
}
private void makeConnection()
{
Connection con = null;
String queryString = "SQL QUERY GOES HERE ";
try {
System.out.println("Connection attempt");
con = datasource.getConnection();
System.out.println("Connection made no issues");
} catch (Exception e) {
System.out.println("Exception:" + e.toString());
e.printStackTrace();
} finally {
closeConnection(con);
System.out.println("Connection closed");
}
}
I have the driver attached to the build path.. What am I doing wrong? This is set up without maven, and just a normal java project.
Thanks!
Not entirely sure from the stack trace, but this looks wrong:
String connectionString = null;
String login = null;
String password = null;
System.out.println("In createConnectionToDatabase");
PoolProperties p = new PoolProperties();
p.setUrl("jdbc:oracle:thin:#***");
p.setUrl(connectionString);
You're setting the URL to connectionString, which is null.
I have JDBC Dao Object, and used PreparedStatements to do UPDATE a row at a table in my DB.
I have other methods such as SELECT and INSERT which are successful (insert-commit works).
But the update, just does not commit the changes (does not work at all). While the same UPDATE statement works from Oracle SQLServer directly.
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
public class StaffDAO {
private Connection conn;
public StaffDAO() {
try {
Class.forName("oracle.jdbc.driver.OracleDriver");
} catch (ClassNotFoundException e) {
System.out.println("Oracle Driver not found");
System.exit(0);
}
try {
conn = DriverManager.getConnection(
"jdbc:oracle:thin:#db01.xxxdev.com:1521:training",
"training", "training");
} catch (SQLException e) {
System.out.println("Driver manager failed");
}
}
public ResultSet getAllResultSet() {
String sql = "select * from ben_staff";
Statement stmt = null;
ResultSet rs = null;
try {
stmt = conn.createStatement(ResultSet.TYPE_SCROLL_INSENSITIVE,
ResultSet.CONCUR_READ_ONLY);
rs = stmt.executeQuery(sql);
} catch (SQLException ex) {
ex.printStackTrace();
}
return rs;
}
public Staff viewEmployee(String id) throws Exception {
Staff st = new Staff();
String sql = "SELECT * from BEN_STAFF where BEN_STAFF.id =\'" + id
+ "\'";
// String psql = "SELECT * FROM BEN_STAFF WHERE ID = ?";
Statement statement = null;
// PreparedStatement pstatement = null;
try {
statement = conn.createStatement();
// pstatement = conn.prepareStatement(psql);
// pstatement.setString(1, id);
} catch (SQLException e) {
System.out.println("Create Statement failed");
System.exit(1);
}
ResultSet rs = null;
try {
rs = statement.executeQuery(sql);
// rs = pstatement.executeQuery();
while (rs.next()) {
st.setId(rs.getString("ID"));
st.setLastName(rs.getString("LASTNAME"));
st.setFirstName(rs.getString("FIRSTNAME"));
st.setMi(rs.getString("MI"));
st.setAddress(rs.getString("ADDRESS"));
st.setCity(rs.getString("CITY"));
st.setState(rs.getString("STATE"));
st.setTelephone(rs.getString("TELEPHONE"));
st.setEmail(rs.getString("EMAIL"));
}
} catch (SQLException e) {
e.printStackTrace();
} finally {
try {
statement.close();
rs.close();
} catch (SQLException e) {
e.printStackTrace();
}
}
return st;
}
public boolean insert(String id, String last, String first, String mi,
String address, String city, String state, String telephone,
String email) {
PreparedStatement pstmt = null;
String psql = "insert into ben_staff (id, lastname, firstname, mi, address, city, state, telephone, email)"
+ "values (?,?,?,?,?,?,?,?,?)";
try {
pstmt = conn.prepareStatement(psql);
// pstmt.setString(1,st.getId());
// pstmt.setString(2, st.getLastName());
// pstmt.setString(3, st.getFirstName());
pstmt.setString(1, id);
pstmt.setString(2, last);
pstmt.setString(3, first);
pstmt.setString(4, mi);
pstmt.setString(5, address);
pstmt.setString(6, city);
pstmt.setString(7, state);
pstmt.setString(8, telephone);
pstmt.setString(9, email);
pstmt.executeUpdate();
conn.commit();
} catch (SQLException ex) {
ex.printStackTrace();
return false;
} finally {
try {
pstmt.close();
} catch (SQLException ex) {
ex.printStackTrace();
}
}
return true;
}
public boolean update(String id, String last, String first, String mi,
String address, String city, String state, String telephone,
String email) {
PreparedStatement pstmt = null;
String psql = "update ben_staff set lastname=?, firstname=?, mi=?, address=?, city=?, state=?,"
+ " telephone=?, email=? where id=?";
try {
pstmt = conn.prepareStatement(psql);
pstmt.setString(1, last);
pstmt.setString(2, first);
pstmt.setString(3, mi);
pstmt.setString(4, address);
pstmt.setString(5, city);
pstmt.setString(6, state);
pstmt.setString(7, telephone);
pstmt.setString(8, email);
pstmt.setString(9, id);
pstmt.executeUpdate();
conn.commit();
} catch (SQLException ex) {
ex.printStackTrace();
try{
conn.rollback();
} catch (SQLException exx){
System.out.println("Update Rollback Failed");
}
return false;
} finally {
try {
pstmt.close();
} catch (SQLException ex) {
ex.printStackTrace();
}
}
return true;
}
public void close() {
try {
conn.close();
} catch (SQLException e) {
e.printStackTrace();
}
}
}
What does pstmt.executeUpdate(); return? That would tell you how many rows are being updated. Something like
int numRows = pstmt.executeUpdate();
System.out.println( "Update modified " + numRows + " rows." );
My guess is that your update isn't actually modifying any rows. That would imply that the id being passed in was incorrect. Remember that string comparisons in SQL Server are case insensitive by default while they are case sensitive by default in Oracle.
I keep getting a HTML 404 reply from the server when I try to login via a httppost (https). Not sure if this is a cookie problem or something else. The code should be good as I have copied it from another activity. I need some help.
This is my current code:
public int postData(String usernamne, String password) {
String url = "https://domainname.com/nclogin.submit";
HttpPost httppost = new HttpPost(url);
try {
KeyStore trusted = null;
try {
trusted = KeyStore.getInstance("BKS");
} catch (KeyStoreException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
trusted.load(null, "".toCharArray());
MySSLSocketFactory sslf = null;
try {
sslf = new MySSLSocketFactory(trusted);
} catch (KeyManagementException e) {
Log.d(TAG, "Exception " + e);
// TODO Auto-generated catch block
e.printStackTrace();
} catch (UnrecoverableKeyException e) {
Log.d(TAG, "Exception " + e);
// TODO Auto-generated catch block
e.printStackTrace();
} catch (KeyStoreException e) {
Log.d(TAG, "Exception " + e);
// TODO Auto-generated catch block
e.printStackTrace();
}
sslf.setHostnameVerifier(SSLSocketFactory.ALLOW_ALL_HOSTNAME_VERIFIER);
List<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>();
nameValuePairs.add(new BasicNameValuePair("f_username", "myemail#address.com"));
nameValuePairs.add(new BasicNameValuePair("f_passwd", "mypassword"));
nameValuePairs.add(new BasicNameValuePair("f_method", "LOGIN"));
httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs));
SchemeRegistry schemeRegistry = new SchemeRegistry();
schemeRegistry.register(new Scheme("https", sslf, 443));
SingleClientConnManager cm = new SingleClientConnManager(httppost.getParams(), schemeRegistry);
// NEW API WONT ALLOW THIS IN THE MAIN THREAD! hence ASYNC
DefaultHttpClient client = new DefaultHttpClient(cm, httppost.getParams());
HttpResponse result = client.execute(httppost);
// Check if server response is valid
StatusLine status = result.getStatusLine();
Log.d(TAG, "STatus" + result.getStatusLine());
if (status.getStatusCode() != 200) {
throw new IOException("Invalid response from server: " + status.toString());
}
HttpEntity entity = result.getEntity();
InputStream is = entity.getContent();
if (is != null) {
is.close(); // release connection
}
String phpsessid = "";
// cookies from another blog
// http://stackoverflow.com/questions/4224913/android-session-management
List cookies = client.getCookieStore().getCookies();
if (cookies.isEmpty()) {
Log.d(TAG, "no cookies received");
} else {
for (int i = 0; i < cookies.size(); i++) {
// Log.d(TAG, "COOKIE-" + i + " " +
// cookies.get(i).toString());
if (cookies.get(i).toString().contains("PHPSESSID")) {
phpsessid = cookies.get(i).toString();
Log.d(TAG, "COOKIE FOR PHPSESSID - " + phpsessid);
}
}
} // end of blog
entity.consumeContent();
client.getConnectionManager().shutdown();
} catch (ClientProtocolException e) {
// TODO Auto-generated catch block
} catch (IOException e) {
// TODO Auto-generated catch block
} catch (NoSuchAlgorithmException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
} catch (CertificateException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
return 1;
} // end of postData()
public class MySSLSocketFactory extends SSLSocketFactory {
SSLContext sslContext = SSLContext.getInstance("TLS");
public MySSLSocketFactory(KeyStore truststore)
throws NoSuchAlgorithmException, KeyManagementException,
KeyStoreException, UnrecoverableKeyException {
super(truststore);
TrustManager tm = new X509TrustManager() {
public void checkClientTrusted(X509Certificate[] chain,
String authType) throws CertificateException {
}
public void checkServerTrusted(X509Certificate[] chain,
String authType) throws CertificateException {
}
public X509Certificate[] getAcceptedIssuers() {
return null;
}
};
sslContext.init(null, new TrustManager[] { tm }, null);
}
#Override
public Socket createSocket(Socket socket, String host, int port,
boolean autoClose) throws IOException, UnknownHostException {
return sslContext.getSocketFactory().createSocket(socket, host,
port, autoClose);
}
#Override
public Socket createSocket() throws IOException {
return sslContext.getSocketFactory().createSocket();
}
I know the url is correct, as are the name value pairs, as I can login via a query string via a browser or via wget:
https://domainname.com/nclogin.submit?f_username=myemail#email.com&f_passwd=password&f_method=LOGIN
This results in a connection established and a redirect to my dashboard page.
The HTML code (source) from the login page can be viewed
here