I already referred this link Sending files using POST with HttpURLConnection
Using the following code, I'm trying to POST a file to local PHP server. It always return file size 0 in my PHP file
public class FileUpload2 {
String CRLF = "\r\n";
/**
* @param args
* @throws Exception
*/
public static void main(String[] args) throws Exception {
new FileUpload2().put("http://localhost/test/test.php");
}
public void put(String targetURL) throws Exception {
String BOUNDRY = "==================================";
HttpURLConnection conn = null;
try {
// These strings are sent in the request body. They provide
// information about the file being uploaded
String contentDisposition = "Content-Disposition: form-data; name=\"userfile\"; filename=\"test.txt\"";
String contentType = "Content-Type: application/octet-stream";
// This is the standard format for a multipart request
StringBuffer requestBody = new StringBuffer();
requestBody.append("--");
requestBody.append(BOUNDRY);
requestBody.append(CRLF);
requestBody.append(contentDisposition);
requestBody.append(CRLF);
requestBody.append(contentType);
requestBody.append(CRLF);
requestBody.append("Content-Transfer-Encoding: binary" + CRLF);
requestBody.append(CRLF);
requestBody.append(new String(getFileBytes("test.txt")));
requestBody.append("--");
requestBody.append(BOUNDRY);
requestBody.append("--");
requestBody.append(CRLF);
// Make a connect to the server
URL url = new URL(targetURL);
conn = (HttpURLConnection) url.openConnection();
conn.setDoOutput(true);
conn.setDoInput(true);
conn.setUseCaches(false);
conn.setRequestMethod("POST");
conn.setRequestProperty("Connection", "Keep-Alive");
conn.setRequestProperty("Content-Type",
"multipart/form-data; boundary=" + BOUNDRY);
conn.setRequestProperty("Cache-Control", "no-cache");
// Send the body
DataOutputStream dataOS = new DataOutputStream(
conn.getOutputStream());
dataOS.writeBytes(requestBody.toString());
dataOS.flush();
dataOS.close();
// Ensure we got the HTTP 200 response code
int responseCode = conn.getResponseCode();
if (responseCode != 200) {
throw new Exception(String.format(
"Received the response code %d from the URL %s",
responseCode, url));
}
// Read the response
InputStream is = conn.getInputStream();
ByteArrayOutputStream baos = new ByteArrayOutputStream();
byte[] bytes = new byte[1024];
int bytesRead;
while ((bytesRead = is.read(bytes)) != -1) {
baos.write(bytes, 0, bytesRead);
}
byte[] bytesReceived = baos.toByteArray();
baos.close();
is.close();
String response = new String(bytesReceived);
System.out.println(response);
// TODO: Do something here to handle the 'response' string
} finally {
if (conn != null) {
conn.disconnect();
}
}
}
public byte[] getFileBytes(String file) throws IOException {
ByteArrayOutputStream ous = null;
InputStream ios = null;
try {
byte[] buffer = new byte[4096];
ous = new ByteArrayOutputStream();
ios = this.getClass().getResourceAsStream(file);
int read = 0;
while ((read = ios.read(buffer)) != -1)
ous.write(buffer, 0, read);
} finally {
try {
if (ous != null)
ous.close();
} catch (IOException e) {
// swallow, since not that important
}
try {
if (ios != null)
ios.close();
} catch (IOException e) {
// swallow, since not that important
}
}
return ous.toByteArray();
}
PHP File
<?php
move_uploaded_file($_FILES['userfile']["tmp_name"], "test.txt");
//file_put_contents("test", "asd".$_FILES['userfile']);
print_r($_FILES);
print_r($_REQUEST);
?>
Result I'm getting is
Array
(
[userfile] => Array
(
[name] => test.txt
[type] =>
[tmp_name] =>
[error] => 3
[size] => 0
)
)
Array
(
)
Thanks in advance!
