Admin: 1 версия

2010-06-01T05:59:48Z

1 версия

в 18:01, 31 мая 2010

2010-05-31T18:01:43Z

Новая страница

== Output in Pdf format in a servlet ==



<source lang="java">
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.ServletOutputStream;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import com.lowagie.text.Chunk;
import com.lowagie.text.Document;
import com.lowagie.text.Paragraph;
import com.lowagie.text.pdf.PdfWriter;
public class OutSimplePdf extends HttpServlet {
public void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
makePdf(request, response, "GET");
}

protected void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
makePdf(request, response, "POST");
}
public void makePdf(HttpServletRequest request, HttpServletResponse response, String methodGetPost) {
try {
Document document = new Document();
ByteArrayOutputStream baos = new ByteArrayOutputStream();
PdfWriter.getInstance(document, baos);
document.open();
document.add(new Paragraph("some text"));
document.close();
response.setHeader("Expires", "0");
response.setHeader("Cache-Control", "must-revalidate, post-check=0, pre-check=0");
response.setHeader("Pragma", "public");
response.setContentType("application/pdf");
response.setContentLength(baos.size());
ServletOutputStream out = response.getOutputStream();
baos.writeTo(out);
out.flush();
} catch (Exception e2) {
System.out.println("Error in " + getClass().getName() + "\n" + e2);
}
}
}

</source>



== Output PDF file in a Servlet ==



<source lang="java">
import java.io.IOException;
import java.util.Date;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import com.lowagie.text.Document;
import com.lowagie.text.DocumentException;
import com.lowagie.text.Paragraph;
import com.lowagie.text.html.HtmlWriter;
import com.lowagie.text.pdf.PdfWriter;
import com.lowagie.text.rtf.RtfWriter2;

// Output PDF file in a Servlet.
public class PDFServlet extends HttpServlet {
public void doGet(HttpServletRequest request, HttpServletResponse response) throws IOException,
ServletException {
String presentationtype = request.getParameter("presentationtype");
Document document = new Document();
try {
if ("pdf".equals(presentationtype)) {
response.setContentType("application/pdf");
PdfWriter.getInstance(document, response.getOutputStream());
}
document.open();
document.add(new Paragraph("Hello World"));
document.add(new Paragraph(new Date().toString()));
} catch (DocumentException de) {
de.printStackTrace();
System.err.println("document: " + de.getMessage());
}
document.close();
}
}

</source>

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Java/PDF RTF/Servlet - История изменений

Admin: 1 версия

в 18:01, 31 мая 2010