Source from server file to client.
import java.io.FileInputStream;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.Locale;
import javax.servlet.ServletException;
import javax.servlet.ServletOutputStream;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
public class ReturnFile extends HttpServlet {
private static final long serialVersionUID = -5297473193366880189L;
public void doPost(HttpServletRequest requisicao, HttpServletResponse
resposta)
throws ServletException, IOException {
this.processeRelatorio(requisicao, resposta);
}
protected void processeRelatorio(HttpServletRequest requisicao,
HttpServletResponse resposta)
throws IOException {
PrintWriter out = null;
ServletOutputStream outstream = null;
try {
// name report
String nameFile = requisicao.getParameter("r000");
FileInputStream entrada = new FileInputStream(nameFile);
byte[] bytesFile = new byte[entrada.available()];
entrada.read(bytesFile, 0, entrada.available());
entrada.close();
entrada = null;
outstream = resposta.getOutputStream();
resposta.setLocale(new Locale("pt,BR"));
// type file.
resposta.setContentType("application/pdf");
resposta.setContentLength(bytesFile.length);
resposta.setHeader("Content-disposition", "inline;
filename=\"Report.pdf\"");
outstream.write(bytesFile);
bytesFile = null;
} catch (IOException ioe) {
out = resposta.getWriter();
out.println(ioe.getLocalizedMessage());
out.println(ioe.getCause());
} finally {
if (out != null) {
out.flush();
out.close();
}
if (outstream != null) {
outstream.flush();
outstream.close();
}
}
}
}
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