I am trying to write an FTP Client and Server that will allow me to send a file from the client to the server via anonymous FTP. However, I keep getting 550 Permission Denied. I am able to do other things like download a file from the server, or get a list of the files in the directory, but whenever I try to do a download it says 550 Permission Denied. The result is the same whether I log in or use anonymous FTP.
I don't see any problems with my code, but I have tried running it on different networks and computers with the same result. Is there a problem with the code that I don't see, or do I have to do something with the router/firewall?
I am writing both the client and server in Java and running Windows. The libraries I am using are Apache Commons FTP Client and Apache FTP Server.
Here is the client. The commented out code is for uploading and getting a list of the files in the directory.
import org.apache.commons.net.ftp.*;
import java.io.*;
import java.net.*;
public class Client
{
public Client()
{
// Do nothing
}
public void transferFile(String ipAddress)
{
// For uploading
FileInputStream file = null;
// For downloading
// FileOutputStream file = null;
try
{
InetAddress address = InetAddress.getByName(ipAddress);
FTPClient ftpClient = new FTPClient();
ftpClient.connect(address, 5000);
ftpClient.login("anonymous", "");
ftpClient.setFileType(FTP.BINARY_FILE_TYPE);
ftpClient.enterLocalPassiveMode();
// For uploading
file = new FileInputStream(new File("C:/SoundFiles/Send/Test1.txt"));
// For downloading
// file = new FileOutputStream(new File("C:/SoundFiles/Receive/Test2.txt"));
// For uploading
boolean success = ftpClient.storeFile("/Receive/Test2.txt", file);
// For downloading
// boolean success = ftpClient.retrieveFile("/Send/Test1.txt", file);
// For listing the files on the server's directory
/*
FTPFile[] directoryFiles = ftpClient.listFiles();
System.out.println("There are " + directoryFiles.length + " files");
for(int i = 0; i < directoryFiles.length; i++)
{
System.out.println(i + ": " + directoryFiles[i].getName());
}
*/
if(success)
System.out.println("Success.");
else
System.out.println("Fail.");
ftpClient.logout();
ftpClient.disconnect();
}
catch(IOException e)
{
e.printStackTrace();
}
finally
{
try
{
if(file != null)
file.close();
}
catch(IOException e)
{
e.printStackTrace();
}
}
}
public static void main(String[] args)
{
Client client = new Client();
client.transferFile("Enter your IP address here");
}
}
Here is the server.
import org.apache.ftpserver.FtpServer;
import org.apache.ftpserver.FtpServerFactory;
import org.apache.ftpserver.ConnectionConfigFactory;
import org.apache.ftpserver.usermanager.impl.BaseUser;
import org.apache.ftpserver.listener.ListenerFactory;
import org.apache.ftpserver.ftplet.FtpException;
import org.apache.ftpserver.ftplet.UserManager;
public class Server
{
public Server()
{
// Do nothing
}
public void startServer()
{
FtpServer server = null;
try
{
FtpServerFactory ftpServerFactory = new FtpServerFactory();
ListenerFactory listenerFactory = new ListenerFactory();
listenerFactory.setPort(5000);
ftpServerFactory.addListener("default", listenerFactory.createListener());
ConnectionConfigFactory configFactory = new ConnectionConfigFactory();
configFactory.setAnonymousLoginEnabled(true);
ftpServerFactory.setConnectionConfig(configFactory.createConnectionConfig());
BaseUser user = new BaseUser();
user.setName("anonymous");
user.setPassword("");
user.setHomeDirectory("C:/SoundFiles");
UserManager userManager = ftpServerFactory.getUserManager();
userManager.save(user);
server = ftpServerFactory.createServer();
server.start();
}
catch (FtpException e)
{
e.printStackTrace();
}
// Stop the server after 10 seconds
try
{
Thread.sleep(10000);
}
catch(InterruptedException e)
{
e.printStackTrace();
}
if(server != null)
server.stop();
}
public static void main(String[] args)
{
Server server = new Server();
server.startServer();
}
}
This is the output I keep getting from the server.
[main] INFO org.apache.ftpserver.impl.DefaultFtpServer - FTP server started
[NioProcessor-3] INFO org.apache.ftpserver.listener.nio.FtpLoggingFilter - CREATED
[pool-3-thread-1] INFO org.apache.ftpserver.listener.nio.FtpLoggingFilter - OPENED
[pool-3-thread-1] INFO org.apache.ftpserver.listener.nio.FtpLoggingFilter - SENT: 220 Service ready for new user.
[pool-3-thread-1] INFO org.apache.ftpserver.listener.nio.FtpLoggingFilter - RECEIVED: USER anonymous
[pool-3-thread-1] INFO org.apache.ftpserver.listener.nio.FtpLoggingFilter - SENT: 331 Guest login okay, send your complete e-mail address as password.
[pool-3-thread-1] INFO org.apache.ftpserver.listener.nio.FtpLoggingFilter - RECEIVED: PASS
[pool-3-thread-1] INFO org.apache.ftpserver.command.impl.PASS - Anonymous login success - null
[pool-3-thread-2] INFO org.apache.ftpserver.listener.nio.FtpLoggingFilter - SENT: 230 User logged in, proceed.
[pool-3-thread-2] INFO org.apache.ftpserver.listener.nio.FtpLoggingFilter - RECEIVED: TYPE I
[pool-3-thread-1] INFO org.apache.ftpserver.listener.nio.FtpLoggingFilter - SENT: 200 Command TYPE okay.
[pool-3-thread-2] INFO org.apache.ftpserver.listener.nio.FtpLoggingFilter - RECEIVED: PASV
[pool-3-thread-1] INFO org.apache.ftpserver.listener.nio.FtpLoggingFilter - SENT: 227 Entering Passive Mode
[pool-3-thread-2] INFO org.apache.ftpserver.listener.nio.FtpLoggingFilter - RECEIVED: STOR /Receive/Test2.txt
[pool-3-thread-2] WARN org.apache.ftpserver.impl.PassivePorts - Releasing unreserved passive port: 2133
[pool-3-thread-2] INFO org.apache.ftpserver.listener.nio.FtpLoggingFilter - SENT: 550 /Receive/Test2.txt: Permission denied.
[pool-3-thread-1] INFO org.apache.ftpserver.listener.nio.FtpLoggingFilter - RECEIVED: QUIT
[pool-3-thread-1] INFO org.apache.ftpserver.listener.nio.FtpLoggingFilter - SENT: 221 Goodbye.
[pool-3-thread-1] INFO org.apache.ftpserver.listener.nio.FtpLoggingFilter - CLOSED
Any suggestions on how I can get this to work are much appreciated.
I ended up finding out what was missing. I just needed to add the following lines of code in the Server class.
List<Authority> authorities = new ArrayList<Authority>();
authorities.add(new WritePermission());
user.setAuthorities(authorities);
Related
I am trying to use an ftps client with proxy.
I am using this library by apache: org.apache.commons.net.ftp;
The problem is, that it looks like when I set proxy to the ftps client, it is connecting and also doing login, but gets connect timed out when trying to transfer the file.
though if I don't set proxy on the ftps client, the file is being written succesfully.
just to mention, if I use normal FTP client (with proxy, i.e. new FTPClient()), and not FTPS client (i.e. new FTPSClient()), it also works.
This is how I create the ftps client:
FTPClient ftpClient = new FTPSClient();
ftpClient.setConnectTimeout(timeout);
ftpClient.setCopyStreamListener(new FileCopyListener(context, "Transfer file using ftp."));
// setting the proxy:
ftpClient.setProxy(new Proxy(Proxy.Type.HTTP, new InetSocketAddress(OUTBOUND_HTTP_PROXY_HOST, OUTBOUND_HTTP_PROXY_PORT)));
ftpClient.setRemoteVerificationEnabled(false);
// connecting:
ftpClient.connect(host, port);
// login
ftpClient.login(username, password)
// some file configuration
ftpClient.setFileType(FTP.BINARY_FILE_TYPE);
ftpClient.enterLocalPassiveMode();
ftpClient.setBufferSize(DataSourceProperties.BUFFER_SIZE);
// has encryption
((FTPSClient) ftpClient).execPBSZ(0);
((FTPSClient) ftpClient).execPROT("P");
// now trying to transfer file
for (File file : files) {
try (InputStream fileInputStream = new FileInputStream(file)) {
String remoteFileName = file.getName();
if (ftpClient.storeFile(remoteFileName, fileInputStream)) { // *** THIS IS WHERE I GET THE TIMEOUT
logger.info("File uploaded successfully");
} else {
throw new Exception(errorMessage);
}
traceLogger.info(LogFactory.createLog(stepId, "Complete uploading file", parameters));
}
}
any idea?
Anyone having simulator example of OPC UA, I am using OPC UA project https://github.com/OPCFoundation/UA-Java .
I have tried all the server mentioned on this git hub page, but none of them are working for me https://github.com/node-opcua/node-opcua/wiki/publicly-available-OPCUA-servers.
I am using org.opcfoundation.ua.examples.SampleClient utility to check connection and sample values, but not able to do so. If any one having working exampe w.r.t this please share along with code. Once this working I need to configure this setting in apache Nifi to make data pipeline.
code:
public class SampleClient {
public static final Locale ENGLISH = Locale.ENGLISH;
public static final Locale ENGLISH_FINLAND = new Locale("en", "FI");
public static final Locale ENGLISH_US = new Locale("en", "US");
public static final Locale FINNISH = new Locale("fi");
public static final Locale FINNISH_FINLAND = new Locale("fi", "FI");
public static final Locale GERMAN = Locale.GERMAN;
public static final Locale GERMAN_GERMANY = new Locale("de", "DE");
public static void main(String[] args)
throws Exception {
// if (args.length==0) {
// System.out.println("Usage: SampleClient [server uri]");
// return;
// }
//String url = /*args[0]*/"opc.tcp://uademo.prosysopc.com:53530/OPCUA/SimulationServer";
//String url = /*args[0]*/"opc.tcp://uademo.prosysopc.com:53530";
//String url = /*args[0]*/"opc.tcp://opcua.demo-this.com:51210/UA/SampleServer";
String url="opc.tcp://mfactorengineering.com:4840";
//String url="opc.tcp://commsvr.com:51234/UA/CAS_UA_Server";
//String url="opc.tcp://uademo.prosysopc.com:53530/OPCUA/SimulationServer";
//String url="opc.tcp://opcua.demo-this.com:51210/UA/SampleServer";
//String url="opc.tcp://opcua.demo-this.com:51211/UA/SampleServer";
//String url="opc.tcp://opcua.demo-this.com:51212/UA/SampleServer";
//String url="opc.tcp://demo.ascolab.com:4841";
//String url="opc.tcp://alamscada.dynu.com:4096";
System.out.print("SampleClient: Connecting to "+url+" .. ");
////////////// CLIENT //////////////
// Create Client
Application myApplication = new Application();
Client myClient = new Client(myApplication);
myApplication.addLocale( ENGLISH );
myApplication.setApplicationName( new LocalizedText("Java Sample Client", Locale.ENGLISH) );
myApplication.setProductUri( "urn:JavaSampleClient" );
CertificateUtils.setKeySize(1024); // default = 1024
KeyPair pair = ExampleKeys.getCert("SampleClient");
myApplication.addApplicationInstanceCertificate( pair );
// The HTTPS SecurityPolicies are defined separate from the endpoint securities
myApplication.getHttpsSettings().setHttpsSecurityPolicies(HttpsSecurityPolicy.ALL);
// Peer verifier
myApplication.getHttpsSettings().setHostnameVerifier( SSLSocketFactory.ALLOW_ALL_HOSTNAME_VERIFIER );
myApplication.getHttpsSettings().setCertificateValidator( CertificateValidator.ALLOW_ALL );
// The certificate to use for HTTPS
KeyPair myHttpsCertificate = ExampleKeys.getHttpsCert("SampleClient");
myApplication.getHttpsSettings().setKeyPair( myHttpsCertificate );
// Connect to the given uri
SessionChannel mySession = myClient.createSessionChannel(url);
// mySession.activate("username", "123");
mySession.activate();
//////////////////////////////////////
///////////// EXECUTE //////////////
// Browse Root
BrowseDescription browse = new BrowseDescription();
browse.setNodeId( Identifiers.RootFolder );
browse.setBrowseDirection( BrowseDirection.Forward );
browse.setIncludeSubtypes( true );
browse.setNodeClassMask( NodeClass.Object, NodeClass.Variable );
browse.setResultMask( BrowseResultMask.All );
BrowseResponse res3 = mySession.Browse( null, null, null, browse );
System.out.println(res3);
// Read Namespace Array
ReadResponse res5 = mySession.Read(
null,
null,
TimestampsToReturn.Neither,
new ReadValueId(Identifiers.Server_NamespaceArray, Attributes.Value, null, null )
);
String[] namespaceArray = (String[]) res5.getResults()[0].getValue().getValue();
System.out.println(Arrays.toString(namespaceArray));
// Read a variable
ReadResponse res4 = mySession.Read(
null,
500.0,
TimestampsToReturn.Source,
new ReadValueId(new NodeId(6, 1710), Attributes.Value, null, null )
);
System.out.println(res4);
res4 = mySession.Read(
null,
500.0,
TimestampsToReturn.Source,
new ReadValueId(new NodeId(6, 1710), Attributes.DataType, null, null )
);
System.out.println(res4);
///////////// SHUTDOWN /////////////
mySession.close();
mySession.closeAsync();
//////////////////////////////////////
}
}
exception:
SampleClient: Connecting to opc.tcp://mfactorengineering.com:4840 .. 2017-07-20 11:24:34,909 [main] INFO CryptoUtil - SecurityProvider initialized from org.bouncycastle.jce.provider.BouncyCastleProvider
2017-07-20 11:24:34,909 [main] INFO CryptoUtil - Using SecurityProvider BC
2017-07-20 11:24:35,549 [main] INFO TcpConnection - mfactorengineering.com/184.173.118.46:4840 Connecting
2017-07-20 11:24:36,142 [main] INFO TcpConnection - mfactorengineering.com/184.173.118.46:4840 Connected
2017-07-20 11:24:36,753 [main] INFO SecureChannelTcp - 1804305022 Closed
2017-07-20 11:24:36,768 [TcpConnection/Read] INFO TcpConnection - mfactorengineering.com/184.173.118.46:4840 Closed (expected)
2017-07-20 11:24:36,768 [main] INFO TcpConnection - mfactorengineering.com/184.173.118.46:4840 Closed
2017-07-20 11:24:36,768 [main] INFO TcpConnection - mfactorengineering.com/184.173.118.46:4840 Connecting
2017-07-20 11:24:37,408 [main] INFO TcpConnection - mfactorengineering.com/184.173.118.46:4840 Connect failed
java.net.SocketException: Connection reset
at java.net.SocketInputStream.read(SocketInputStream.java:209)
at java.net.SocketInputStream.read(SocketInputStream.java:141)
at java.net.SocketInputStream.read(SocketInputStream.java:223)
at org.opcfoundation.ua.utils.bytebuffer.InputStreamReadable._get(InputStreamReadable.java:53)
at org.opcfoundation.ua.utils.bytebuffer.InputStreamReadable.getInt(InputStreamReadable.java:144)
at org.opcfoundation.ua.transport.tcp.io.TcpConnection.open(TcpConnection.java:500)
at org.opcfoundation.ua.transport.tcp.io.SecureChannelTcp.open(SecureChannelTcp.java:565)
at org.opcfoundation.ua.application.Client.createSecureChannel(Client.java:641)
at org.opcfoundation.ua.application.Client.createSecureChannel(Client.java:555)
at org.opcfoundation.ua.application.Client.createSessionChannel(Client.java:370)
at org.opcfoundation.ua.application.Client.createSessionChannel(Client.java:345)
at org.opcfoundation.ua.examples.SampleClient.main(SampleClient.java:120)
2017-07-20 11:24:37,464 [main] WARN SecureChannelTcp - Connection failed: Bad_CommunicationError (code=0x80050000, description="2147811328, Connection reset")
2017-07-20 11:24:37,464 [main] WARN SecureChannelTcp - Bad_CommunicationError: Retrying
2017-07-20 11:24:37,464 [main] INFO TcpConnection - mfactorengineering.com/184.173.118.46:4840 Connecting
2017-07-20 11:24:38,056 [main] INFO TcpConnection - mfactorengineering.com/184.173.118.46:4840 Connected
2017-07-20 11:24:38,368 [TcpConnection/Read] WARN TcpConnection - mfactorengineering.com/184.173.118.46:4840 Error
org.opcfoundation.ua.common.ServiceResultException: Bad_SecurityChecksFailed (code=0x80130000, description="An error occurred verifying security")
at org.opcfoundation.ua.transport.tcp.io.TcpConnection$ReadThread.run(TcpConnection.java:782)
2017-07-20 11:24:38,368 [TcpConnection/Read] INFO TcpConnection - mfactorengineering.com/184.173.118.46:4840 Closed
Exception in thread "main" org.opcfoundation.ua.common.ServiceResultException: Bad_SecurityChecksFailed (code=0x80130000, description="An error occurred verifying security")
at org.opcfoundation.ua.transport.tcp.io.TcpConnection$ReadThread.run(TcpConnection.java:782)
The example is written such that it always selects the most secure connection, which on the other hand requires that the server accepts the Application Instance Certificate of the client application, before it enables the connection. Bad_SecurityChecksFailed is the standard error code from the server, when it does not accept the client connection.
Since you cannot control these publicly available servers to make them trust your client application, your only alternative is to try to connect without security, if the server allows that.
For this, you need to change the code so that it picks an insecure endpoint.
Replace
SessionChannel mySession = myClient.createSessionChannel(url);
with
EndpointDescription[] endpoints = myClient.discoverEndpoints(url);
// Filter out all but opc.tcp protocol endpoints
endpoints = selectByProtocol(endpoints, "opc.tcp");
// Filter out all but Signed & Encrypted endpoints
endpoints = selectByMessageSecurityMode(endpoints, MessageSecurityMode.None);
// Choose one endpoint
if (endpoints.length == 0)
throw new Exception("The server does not support insecure connections");
EndpointDescription endpoint = endpoints[0];
//////////////////////////////////////
SessionChannel mySession = myClient.createSessionChannel(endpoint);
(according to the lines of ClientExample1)
enter code here I try to push from Java by using JAVAPNS 2.2
this is my code
import java.util.*;
import org.apache.log4j.BasicConfigurator;
import org.json.JSONException;
import javapns.*;
import javapns.communication.exceptions.CommunicationException;
import javapns.communication.exceptions.KeystoreException;
import javapns.notification.PushNotificationPayload;
import javapns.notification.PushedNotification;
import javapns.notification.ResponsePacket;
public class Test {
/**
* #param args
*/
public static void main(String[] args) {
BasicConfigurator.configure();
try {
PushNotificationPayload payload = PushNotificationPayload.complex();
payload.addAlert("Hello World");
payload.addBadge(1);
payload.addSound("default");
payload.addCustomDictionary("id", "1");
System.out.println(payload.toString());
List<PushedNotification> NOTIFICATIONS = Push.payload(payload, "D:\\keystore1.p12", "123456", true, "AA67F2F18586D2C83398F9E5E5BE8BA1CD3FF80257CC74BACF2938CE144BA71D");
for (PushedNotification NOTIFICATION : NOTIFICATIONS) {
if (NOTIFICATION.isSuccessful()) {
/* APPLE ACCEPTED THE NOTIFICATION AND SHOULD DELIVER IT */
System.out.println("PUSH NOTIFICATION SENT SUCCESSFULLY TO: " +
NOTIFICATION.getDevice().getToken());
/* STILL NEED TO QUERY THE FEEDBACK SERVICE REGULARLY */
}
else {
String INVALIDTOKEN = NOTIFICATION.getDevice().getToken();
/* ADD CODE HERE TO REMOVE INVALIDTOKEN FROM YOUR DATABASE */
/* FIND OUT MORE ABOUT WHAT THE PROBLEM WAS */
Exception THEPROBLEM = NOTIFICATION.getException();
THEPROBLEM.printStackTrace();
/* IF THE PROBLEM WAS AN ERROR-RESPONSE PACKET RETURNED BY APPLE, GET IT */
ResponsePacket THEERRORRESPONSE = NOTIFICATION.getResponse();
if (THEERRORRESPONSE != null) {
System.out.println(THEERRORRESPONSE.getMessage());
}
}
}
} catch (CommunicationException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (KeystoreException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (JSONException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
The library sent successfully but I never get a push on my device. I've try many tokens of my devices and even try to regenerate the certificate .12 but still no use.
Log
0 [main] DEBUG javapns.notification.Payload - Adding alert [Hello World]
1 [main] DEBUG javapns.notification.Payload - Adding badge [1]
1 [main] DEBUG javapns.notification.Payload - Adding sound [default]
1 [main] DEBUG javapns.notification.Payload - Adding custom Dictionary [id] = [1]
{"id":"1","aps":{"sound":"default","alert":"Hello World","badge":1}}
292 [main] DEBUG javapns.communication.ConnectionToAppleServer - Creating SSLSocketFactory
341 [main] DEBUG javapns.communication.ConnectionToAppleServer - Creating SSLSocket to gateway.push.apple.com:2195
972 [main] DEBUG javapns.notification.PushNotificationManager - Initialized Connection to
Host: [gateway.push.apple.com] Port: [2195]: 1923e91b[SSL_NULL_WITH_NULL_NULL: Socket[addr=gateway.push.apple.com/17.149.35.173,port=2195,localport=65225]]
974 [main] DEBUG javapns.notification.PushNotificationManager - Building Raw message from deviceToken and payload
974 [main] DEBUG javapns.notification.PushNotificationManager - Built raw message ID 1 of total length 113
974 [main] DEBUG javapns.notification.PushNotificationManager - Attempting to send notification: {"id":"1","aps":{"sound":"default","alert":"Hello World","badge":1}}
974 [main] DEBUG javapns.notification.PushNotificationManager - to device: AA67F2F18586D2C83398F9E5E5BE8BA1CD3FF80257CC74BACF2938CE144BA71D
1743 [main] DEBUG javapns.notification.PushNotificationManager - Flushing
1743 [main] DEBUG javapns.notification.PushNotificationManager - At this point, the entire 113-bytes message has been streamed out successfully through the SSL connection
1743 [main] DEBUG javapns.notification.PushNotificationManager - Notification sent on first attempt
1743 [main] DEBUG javapns.notification.PushNotificationManager - Reading responses
1744 [main] DEBUG javapns.notification.PushNotificationManager - Closing connection
PUSH NOTIFICATION SENT SUCCESSFULLY TO: AA67F2F18586D2C83398F9E5E5BE8BA1CD3FF80257CC74BACF2938CE144BA71D
anyone has any idea ?
this line should
List<PushedNotification> NOTIFICATIONS = Push.payload(payload, "D:\\keystore1.p12", "123456", true, "AA67F2F18586D2C83398F9E5E5BE8BA1CD3FF80257CC74BACF2938CE144BA71D");
should change to this
List<PushedNotification> NOTIFICATIONS = Push.payload(payload, "D:\\keystore1.p12", "123456", false, "AA67F2F18586D2C83398F9E5E5BE8BA1CD3FF80257CC74BACF2938CE144BA71D");
i wrote programmatically a startup code of the apache Server like this:
public void _start()
{
String Path = "C:\\Dokumente und Einstellungen\\andjock\\Desktop\\ab";
File ftpDirectory = new File(Path);
ftpDirectory.mkdirs();
FtpServerFactory serverFactory = new FtpServerFactory();
ListenerFactory factory = new ListenerFactory();
factory.setPort(2221);
try {
serverFactory.addListener("default", factory.createListener());
PropertiesUserManagerFactory userFactory = new PropertiesUserManagerFactory();
File userFile = new File("C:\\Dokumente und Einstellungen\\andjock\\Desktop\\ftpusers.properties");
userFactory.setFile(userFile);
UserManager um = userFactory.createUserManager();
BaseUser user = new BaseUser();
user.setName("myNewUser");
user.setPassword("secret");
user.setHomeDirectory(Path);
um.save(user);
serverFactory.setUserManager(um);
FtpServer ftpServer = serverFactory.createServer();
ftpServer.start();
} catch (Exception e) {
Logger LOGGER = Logger.getLogger(TestapacheFtpServer.class);
LOGGER.log(Level.FATAL, "Unable to start test ftpserver", e);
}
How do i know that the server is really working ?
how can i access this apache Server , from the "outside"?
i tried with a telnet and ftp (ftp 127.0.0.1) on my machine but i received:
FTP: connect : unknown error code
does someone got any idea ? i just don't want to rely on the jvm log, but rather test it , and accesing the started it
i figure it out!! i wrote a client using the FTP client library (the apache commons library) to test connectivity and list the files ; something like that
FTPClient ftp = new FTPClient();
ftp.connect(InetAddress.getLocalHost(), 2221);// or "localhost" in your case
String loging_success = ftp.login("myNewUser", "secret") == true ? "success" : "failed";
System.out.println("login: "+ loging_success);
FTPFile[] files = ftp.listFiles();
System.out.println("Listed "+files.length+" files.");
for(FTPFile file : files) {
System.out.println(file.getName());
}
I'm currently working on a SalesForce.com tutorial entitled Force.com for Google App Engine for Java: Getting Started
I've installed the Google Eclipse Plugin, downloaded the libraries, and entered the "Hello World App" (as seen on the tutorial page):
package com.force;
import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.http.*;
import java.util.logging.*;
import com.sforce.ws.*;
import com.sforce.soap.partner.*;
import com.sforce.soap.partner.sobject.SObject;
#SuppressWarnings("serial")
public class HelloWorldServlet extends HttpServlet {
private static final Logger log = Logger.getLogger(HelloWorldServlet.class.getName());
private String username = "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx";
private String password = "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx";
private PartnerConnection connection;
public void doGet(HttpServletRequest req, HttpServletResponse resp) throws IOException {
resp.setContentType("text/html");
resp.getWriter().println("Hello, world. this is a test2");
PrintWriter t = resp.getWriter();
getConnection( t, req);
if ( connection == null ) { return; }
QueryResult result = null;
try {
result = connection.query( "select id, name, phone from Account order by LastModifiedDate desc limit 10 ");
} catch (ConnectionException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
for (SObject account : result.getRecords()) {
t.println("<li>"+ (String)account.getField("Name") + "</li>");
}
}
void getConnection(PrintWriter out, HttpServletRequest req) {
try {
// build up a ConnectorConfig from a sid
String sessionid = req.getParameter("sid");
String serverurl = req.getParameter("srv");
if ( connection == null ) {
out.println("<p>new connection needed</p>");
// login to the Force.com Platform
ConnectorConfig config = new ConnectorConfig();
if ( sessionid != null && serverurl != null) {
config.setServiceEndpoint(serverurl);
config.setSessionId(sessionid);
config.setManualLogin(false);
out.println("using session from query string");
} else {
config.setUsername(username);
config.setPassword(password);
}
connection = Connector.newConnection(config);
out.println( connection.getConfig().getSessionId() );
out.println( connection.getConfig().getServiceEndpoint() );
} else {
out.println("<p> reuse existing connection");
out.println( connection.getConfig().getSessionId() );
}
log.warning("Connection SID " +connection.getConfig().getSessionId());
} catch ( ConnectionException ce) {
log.warning("ConnectionException " +ce.getMessage());
out.println( ce.getMessage() + " s " + ce.getClass() );
}
}
}
When I run the application as a "Web Application" I get the following in the console:
Initializing AppEngine server
Logging to JettyLogger(null) via com.google.apphosting.utils.jetty.JettyLogger
Successfully processed D:\education\java\HelloWorldOriginal\war\WEB-INF/appengine-web.xml
Successfully processed D:\education\java\HelloWorldOriginal\war\WEB-INF/web.xml
The server is running at http://localhost:8888/
Warning: default mime table not found: C:\devtool\Java\jre6\lib\content-types.properties
When I try to visit http://localhost:8080/ , I see:
Oops! Google Chrome could not connect to localhost:8080
Did you mean: localhost-8080.com
Additional suggestions:
Try reloading: localhost:8080
Search on Google:
Google Chrome Help - Why am I seeing this page?
©2011 Google - Google Home
But when I visit http://localhost:8888/ , I get:
Web Application Starter Project
Please enter your name:
Send
(Which, also isn't the desired or expected outcome.)
What is this content-type.properties that I'm missing and how can I fix it? Or is that just a symptom of a greater problem?
Have you checked that your web.xml directs requests for / to the appropriate handler class? Just writing the class isn't enough - you have to make sure that incoming requests are directed to it.