Here is Axis client code that i am using to hit the webservice
I am getting org.xml.sax.SAXParseException; lineNumber: 1; columnNumber: 1; Content is not allowed in prolog. This is when i send a Soap Message
I get a Socket time out if i send XML with UTF-8 encoded
Both exceptions happen on invoke
Is there a way i can ignore BOM marker on call.invoke which seems to be issue.
Quick help would be appreciated.. thanks
public class WSTestClient { public static void main(String [] args) {
try{
String acordXMLUrl = "C:\\request.xml";
File xmlFile = new File(acordXMLUrl);
InputStream in = new FileInputStream(xmlFile);
Reader reader = new InputStreamReader(in, "UTF-8");
int c;
StringBuffer sb = new StringBuffer();
while ((c = in.read()) != -1)
sb.append((char) c);
String acordXML = sb.toString();
Message msg = new Message(acordXMLUrl);
SOAPEnvelope se;
String endpoint ="https://somewebservice/getme";
Service service = new Service();
Call call = (Call) service.createCall();
call.setTimeout(5000);
call.setTargetEndpointAddress( new java.net.URL(endpoint) );
call.setOperationName(new QName("http://soapactionurl","getme"));
System.out.println("Calling into webservice" );
String ret="";
try{
//ret = (String) call.invoke( new Object[] {acordXML} );
se = call.invoke( msg);
}
catch (RemoteException e) {
System.err.println(e.toString());
}
System.out.println("Return is:"+ ret);
}
catch (Exception e) {
System.err.println(e.toString());
}}}
Related
I am trying to build a web server using java sockets, everything is fine except when the browser sends POST request with file attached, when the request is received the content of the file is out of order , the file sent was txt file with line numbers when received the line numbers were out of order. is there any way I can avoid this I want ordered data (see pic 99522 is followed by 99712) THANKs
public class Server{
public static void main(String[] args) throws IOException {
ServerSocket server = new ServerSocket(8080);
while(true) new Thread(new Client(server.accept())).start();
}
}
class Client implements Runnable {
Socket client;
OutputStream os = new FileOutputStream(new File("File12"));
InputStream in;
OutputStream out;
static ArrayList<Socket> clients = new ArrayList<Socket>();
String index;
String response;
Client(Socket client) throws IOException {
String listOfFiles = "<ol>";
this.client = client;
in = client.getInputStream();
out = client.getOutputStream();
clients.add(client);
for (File file : new File(".").listFiles()) if (file.isFile()) listOfFiles += "<li>" + file.getName() + "</li>";
listOfFiles += "</ol>";
index = "<!DOCTYPE html><html><body><h1>" + new Date() + "</h1><hr>"+listOfFiles+"<form id='upload' enctype='multipart/form-data' method='post' action='/upload'><input id='fileupload' multiple name='myfile' type='file' /><input type='submit' value='submit' id='submit' /></form></body></html>";
response = "HTTP/1.1 200 OK\r\n" +
"Content-Type: text/html\r\n" +
"Content-Length:"+index.length()+"\r\n" +
"\r\n" +
index;
}
public void run() {
try {
String msg = "";
byte buffer[] = new byte[32*1024];
int read = in.read(buffer);
while(read != -1){
msg = new String(buffer);
System.out.println(msg);
if(msg.startsWith("POST")){
System.err.println("RAN IN POST");
out.write("HTTP/1.1 200 OK\r\n".getBytes());
out.write("Content-Type: text/plain\r\n".getBytes());
out.write(("Content-Length:"+ 4 +"\r\n").getBytes());
out.write("\r\n".getBytes());
out.write("done".getBytes());
}
if(msg.startsWith("GET")){
String path = msg.substring(msg.indexOf("/"), msg.indexOf("HTTP")).trim();
if(path.equals("/")) out.write(response.getBytes());
else {
String fileName = path.substring(1);
fileName = URLDecoder.decode(fileName,"UTF-8");
System.out.println(fileName);
File file = new File(fileName);
if(file.exists()){
System.out.println(file.getName() + " " + file.length());
out.write("HTTP/1.1 200 OK\r\n".getBytes());
out.write("Accept-Ranges: bytes\r\n".getBytes());
out.write(("Transfer-Encoding: chunked\r\n").getBytes());
out.write("Content-Type: application/octet-stream\r\n".getBytes());
out.write(("Content-Disposition: attachment; filename=\""+file.getName()+"\"\r\n").getBytes());
out.write("\r\n".getBytes());
try{
Files.copy(Paths.get(file.getPath()) , out);
}catch(Exception e){
break;
}
}else System.out.println("file not existes");
}
}
out.flush();
os.close();
read = in.read(buffer);
}
System.err.println("closing scoket");
out.close();
in.close();
client.close();
clients.remove(client);
} catch (IOException e) {
e.printStackTrace();
}
}
}
ALL right found the bug I am not clearing the buffer hence it appears again
I've been having some trouble connecting to a uri when I append a query string... I always get back 400 http code... however when I try the browser, same url, everything goes smooth...
This is what I have:
String query = "q=hello";
byte[] queryBytes = query.getBytes();
Somewhere in my code I open an HttpConnection using the queryBytes like this:
String uri = "https://www.google.co.ve/search" + "?" + new String(queryBytes);
HttpConnection request = (HttpConnection) Connector.open(uri);
request.getResponseCode();
If I don't use bytes for my connection everyting works fine:
String uri = "https://www.google.co.ve/search?q=hello";
Thanks in advance
When i try this, iam getting http code 200.
try {
String httpURL = "https://www.google.co.ve/search?q=hello";
HttpConnection httpConn;
httpConn = (HttpConnection) Connector.open(httpURL);
httpConn.setRequestMethod(HttpConnection.GET);
DataOutputStream _outStream = new DataOutputStream(httpConn.openDataOutputStream());
byte[] request_body = httpURL.getBytes();
for (int i = 0; i < request_body.length; i++) {
_outStream.writeByte(request_body[i]);
}
DataInputStream _inputStream = new DataInputStream(
httpConn.openInputStream());
StringBuffer _responseMessage = new StringBuffer();
int ch;
while ((ch = _inputStream.read()) != -1) {
_responseMessage.append((char) ch);
}
String res = (_responseMessage.toString());
String responce = res.trim();
httpConn.close();
Dialog.alert(responce);
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
I am using GWT.
I have to download a file file from server to client.
Document is in the external repository.
Client sends the id of the document through a Servlet.
On server side: Using this ID document is retrieved:
Document document = (Document)session.getObject(docId);
ContentStream contentStream = document.getContentStream();
ByteArrayInputStream inputStream = (ByteArrayInputStream) contentStream.getStream();
int c;
while ((c = inputStream.read()) != -1) {
System.out.print((char) c);
}
String mime = contentStream.getMimeType();
String name = contentStream.getFileName();
InputStream strm = contentStream.getStream();
Here I can read the document.
I want to send this to the client.
How do I make this a file and send it back to the client?
In Your Servlet:
Document document =(Document)session.getObject(docId);
ContentStream contentStream = document.getContentStream();
String name = contentStream.getFileName();
response.setHeader("Content-Type", "application/octet-stream;");
response.setHeader("Content-Disposition", "attachment;filename=\"" + name + "\"");
OutputStream os = response.getOutputStream();
InputStream is =
(ByteArrayInputStream) contentStream.getStream();
BufferedInputStream buf = new BufferedInputStream(is);
int readBytes=0;
while((readBytes=buf.read())!=-1) {
os.write(readBytes);
}
os.flush();
os.close();// *important*
return;
You can create a standard servlet (which extends HttpServlet and not RemoteServiceServlet) on server side and opportunity to submit the id as servlet parameter on client side.
Now you need after getting request create the excel file and send it to the client. Browser shows automatically popup with download dialog box.
But you should make sure that you set the right content-type response headers. This header will instruct the browser which type of file is it.
protected void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
String fileId = reguest.getParameter("fileId"); // value of file id from request
File file = CreatorExel.getFile(fileId); // your method to create file from helper class
// setting response headers
response.setHeader("Content-Type", getServletContext().getMimeType(file.getName()));
response.setHeader("Content-Length", file.length());
response.setHeader("Content-Disposition", "inline; filename=\"" + file.getName() + "\"");
BufferedInputStream input = null;
BufferedOutputStream output = null;
try {
InputStream inputStream = new FileInputStream(file);
ServletOutputStream outputStream = response.getOutputStream();
input = new BufferedInputStream(fileInput);
output = new BufferedOutputStream(outputStream);
int count;
byte[] buffer = new byte[8192]; // buffer size is 512*16
while ((count = input.read(buffer)) > 0) {
output.write(buffer, 0, count);
}
} finally {
if (output != null) {
try {
output.close();
} catch (IOException ex) {
}
}
if (input != null) {
try {
input.close();
} catch (IOException ex) {
}
}
}
I am trying to download a file from GWT client. At server side there is a servlet which generates content of file as per request and send it back to the client.
Test Scenarios:
Scenario 1 If I hit url of servlet directly, it always give me desired result without any problems.
Scenario 2
Using GWT client on IE8,I am able to download file without any code changes. However on some other computer as soon as I try to write file content on response output stream, I get EOF exception.
org.mortbay.jetty.EofException
at org.mortbay.jetty.HttpGenerator.flush(HttpGenerator.java:760)
at org.mortbay.jetty.AbstractGenerator$Output.flush(AbstractGenerator.java:566)
at org.mortbay.jetty.HttpConnection$Output.flush(HttpConnection.java:911)
at java.io.BufferedOutputStream.flush(Unknown Source)
atXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX.doGet(ServiceDataExporterServlet.java:110)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:617)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)Creating input stream....
Code of servlet is as follows:
try
{
output = new BufferedOutputStream(response.getOutputStream(), DEFAULT_BUFFER_SIZE);
byte[] buffer = new byte[DEFAULT_BUFFER_SIZE];
int length;
int bytesWritten=0;
while ((length = data.read(buffer)) > 0) {
bytesWritten+=length;
output.write(buffer, 0, length);
}
output.flush() // At this point I am facing EOF exception.
where data is inputStream
Via means of bytesWritten variable I have confirmed that in all the three scenarios content has been written in the same way in output stream. But not sure why it is not working in some computers.
Any points will be highly appereciated.
I do something like this to download files with GWT
In the server side:
public static void sendFileToClient(String path, String filename,
int contentLen, HttpServletRequest request,
HttpServletResponse response) throws UnsupportedEncodingException
{
String ua = request.getHeader("User-Agent").toLowerCase();
boolean isIE = ((ua.indexOf("msie 6.0") != -1) || (ua
.indexOf("msie 7.0") != -1)) ? true : false;
String encName = URLEncoder.encode(filename, "UTF-8");
// Derived from Squirrel Mail and from
// http://www.jspwiki.org/wiki/BugSSLAndIENoCacheBug
if (request.isSecure())
{
response.addHeader("Pragma", "no-cache");
response.addHeader("Expires", "-1");
response.addHeader("Cache-Control", "no-cache");
}
else
{
response.addHeader("Cache-Control", "private");
response.addHeader("Pragma", "public");
}
if (isIE)
{
response.addHeader("Content-Disposition", "attachment; filename=\"" + encName + "\"");
response.addHeader("Connection", "close");
response.setContentType("application/force-download; name=\"" + encName + "\"");
}
else
{
response.addHeader("Content-Disposition", "attachment; filename=\""
+ encName + "\"");
response.setContentType("application/octet-stream; name=\""
+ encName + "\"");
if (contentLen > 0)
response.setContentLength(contentLen);
}
try
{
FileInputStream zipIn = new FileInputStream(new File(path));
ServletOutputStream out = response.getOutputStream();
response.setBufferSize(8 * 1024);
int bufSize = response.getBufferSize();
byte[] buffer = new byte[bufSize];
BufferedInputStream bis = new BufferedInputStream(zipIn, bufSize);
int count;
while ((count = bis.read(buffer, 0, bufSize)) != -1)
{
out.write(buffer, 0, count);
}
bis.close();
zipIn.close();
out.flush();
out.close();
}
catch (FileNotFoundException e)
{
System.out.println("File not found");
}
catch (IOException e)
{
System.out.println("IO error");
}
}
I have a servlet that expects for an id and then I get the related file path and I serve it to the browser with the above code.
In the client side:
public class DownloadIFrame extends Frame implements LoadHandler,
HasLoadHandlers
{
public static final String DOWNLOAD_FRAME = "__gwt_downloadFrame";
public DownloadIFrame(String url)
{
super();
setSize("0px", "0px");
setVisible(false);
RootPanel rp = RootPanel.get(DOWNLOAD_FRAME);
if (rp != null)
{
addLoadHandler(this);
rp.add(this);
setUrl(url);
}
else
openURLInNewWindow(url);
}
native void openURLInNewWindow(String url) /*-{
$wnd.open(url);
}-*/;
public HandlerRegistration addLoadHandler(LoadHandler handler)
{
return addHandler(handler, LoadEvent.getType());
}
public void onLoad(LoadEvent event)
{
}
}
In you hosted page add this Iframe
<iframe src="javascript:''" id="__gwt_downloadFrame" tabIndex='-1' style="position:absolute;width:0;height:0;border:0"></iframe>
Then to download a file put something like this:
btnDownload.addClickHandler(new ClickHandler()
{
public void onClick(ClickEvent arg0)
{
String url = GWT.getModuleBaseURL()
+ "/downloadServlet?id=[FILE_ID]";
new DownloadIFrame(url);
}
});
I hope this helps you.
Happy coding!
It happens also if the OutputStream flushes after InputStream was closed, like this:
myInputStream.close();
myOutputStream.flush();
myOutputStream.close();
it should be like:
myOutputStream.flush();
myInputStream.close();
myOutputStream.close();
Hope it helps :-)
Hi I am trying to serialize a hash table but not happening
private void Form1_Load(object sender, EventArgs e)
{
Hashtable ht = new Hashtable();
DateTime dt = DateTime.Now;
for (int i = 0; i < 10; i++)
ht.Add(dt.AddDays(i), i);
SerializeToXmlAsFile(typeof(Hashtable), ht);
}
private void SerializeToXmlAsFile(Type targetType, Object targetObject)
{
try
{
string fileName = #"C:\output.xml";
//Serialize to XML
XmlSerializer s = new XmlSerializer(targetType);
TextWriter w = new StreamWriter(fileName);
s.Serialize(w, targetObject);
w.Flush();
w.Close();
}
catch (Exception ex) { throw ex; }
}
After a google search , I found that objects that impelment IDictonary cannot be serialized. However, I got success with binary serialization.
But I want to have xml one. Is there any way of doing so?
I am using C#3.0
Thanks
First of all starting with C# 2.0 you can use type safe version of very old Hashtable which come from .NET 1.0. So you can use Dictionary<DateTime, int>.
Starting with .NET 3.0 you can use DataContractSerializer. So you can rewrite you code like following
private void Form1_Load(object sender, EventArgs e)
{
MyHashtable ht = new MyHashtable();
DateTime dt = DateTime.Now;
for (int i = 0; i < 10; i++)
ht.Add(dt.AddDays(i), i);
SerializeToXmlAsFile(typeof(Hashtable), ht);
}
where SerializeToXmlAsFile and MyHashtable type you define like following:
[CollectionDataContract (Name = "AllMyHashtable", ItemName = "MyEntry",
KeyName = "MyDate", ValueName = "MyValue")]
public class MyHashtable : Dictionary<DateTime, int> { }
private void SerializeToXmlAsFile(Type targetType, Object targetObject)
{
try {
string fileName = #"C:\output.xml";
DataContractSerializer s = new DataContractSerializer (targetType);
XmlWriterSettings settings = new XmlWriterSettings ();
settings.Indent = true;
settings.IndentChars = (" ");
using (XmlWriter w = XmlWriter.Create (fileName, settings)) {
s.WriteObject (w, targetObject);
w.Flush ();
}
}
catch (Exception ex) { throw ex; }
}
This code produce C:\output.xml file with the following contain:
<?xml version="1.0" encoding="utf-8"?>
<AllMyHashtable xmlns:i="http://www.w3.org/2001/XMLSchema-instance"
xmlns="http://schemas.datacontract.org/2004/07/DataContractXmlSerializer">
<MyEntry>
<MyDate>2010-06-09T22:30:00.9474539+02:00</MyDate>
<MyValue>0</MyValue>
</MyEntry>
<MyEntry>
<MyDate>2010-06-10T22:30:00.9474539+02:00</MyDate>
<MyValue>1</MyValue>
</MyEntry>
<!-- ... -->
</AllMyHashtable>
So how we can see all names of the elements of the destination XML files we can free define.
You can create your own Hashtable derived from standart Hashtable with implementation of IXmlSerializable. So you will implmenent ReadXml(XmlReader reader) & WriteXml(XmlWriter writer) where you can put your own logic on how to read and write values from your Hashtablw with given XmlReader & XmlWriter.
I suggest you use DataContractSerializer, it's more powerful and easier to use.