I finally made it to upload a file using core java. Here is my code:
import java.io.BufferedReader;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.io.OutputStreamWriter;
import java.io.PrintWriter;
import java.net.URL;
import java.net.URLConnection;
public class FileUpload {
public static final String C_EMAIL = "email@gmail.com";
public static final String C_PASSWORD = "password";
public static void main(String args[]) {
try {
// Send data
String url = "http://localhost/upload.php";
File binaryFile = new File("C:\\wamp\\www\\image.png");
// Just generate some unique random value.
String boundary = Long.toHexString(System.currentTimeMillis());
// Line separator required by multipart/form-data.
String CRLF = "\r\n";
URLConnection connection = new URL(url).openConnection();
connection.setDoOutput(true);
connection.setRequestProperty("Content-Type",
"multipart/form-data; boundary=" + boundary);
PrintWriter writer = null;
try {
OutputStream output = connection.getOutputStream();
// true = autoFlush, important!
writer = new PrintWriter(
new OutputStreamWriter(output, "UTF-8"), true);
// Send normal param.
writer.append("--" + boundary).append(CRLF);
writer.append("Content-Disposition: form-data; name=\"email\"")
.append(CRLF);
writer.append("Content-Type: text/plain; charset=" + "UTF-8")
.append(CRLF);
writer.append(CRLF);
writer.append(C_EMAIL).append(CRLF).flush();
// Send binary file.
writer.append("--" + boundary).append(CRLF);
writer.append(
"Content-Disposition: form-data;"
+ "name=\"file\"; filename=\"" + binaryFile.getName()
+ "\"").append(CRLF);
writer.append("Content-Type: "
+ URLConnection.guessContentTypeFromName(binaryFile
.getName()) + CRLF);
writer.append("Content-Transfer-Encoding: binary").append(CRLF);
System.out.println("Content transfer set");
writer.append(CRLF).flush();
InputStream input = null;
try {
System.out.println("Entered try");
input = new FileInputStream(binaryFile);
byte[] buffer = new byte[1024];
System.out.println("Before for loop");
for (int length = 0; (length = input.read(buffer)) > 0;) {
output.write(buffer, 0, length);
}
output.flush(); // Important! Output cannot be closed.
// Close of writer will close output as well.
System.out.println("output flushed");
} finally {
if (input != null) try {
input.close();
} catch (IOException logOrIgnore) {}
}
writer.append(CRLF).flush(); // CRLF is important! It indicates
// end of binary boundary.
// End of multipart/form-data.
writer.append("--" + boundary + "--").append(CRLF);
} finally {
if (writer != null) writer.close();
}
// Get the response
BufferedReader rd = new BufferedReader(new InputStreamReader(
connection.getInputStream()));
String line;
while ((line = rd.readLine()) != null) {
System.out.println(line);
}
rd.close();
} catch (Exception e) {
System.out.println(e.getMessage());
}
}
}
In my PHP script I am able to get the file being uploaded and the 'email' parameter with its value.
However, I don't know how can I pass one more additional parameter i.e. "password".
Can anybody suggest me?
