pdfexportservlet.java

来自「杰表服务器 部分源码 杰创网络报表(简称“杰表”)是一款国产的网络报表开发工」· Java 代码 · 共 73 行

package servlet;

import java.io.ByteArrayOutputStream;
import java.io.FileInputStream;
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.jatools.core.ZReportJob;
import com.jatools.core.ZReportServer;


/**
 * DOCUMENT ME!
 *
 * @author $author$
 * @version $Revision$
 */
public class PdfExportServlet extends HttpServlet {
    /**
     * DOCUMENT ME!
     *
     * @throws ServletException DOCUMENT ME!
     */


    /**
     * DOCUMENT ME!
     *
     * @param request DOCUMENT ME!
     * @param response DOCUMENT ME!
     *
     * @throws ServletException DOCUMENT ME!
     * @throws IOException DOCUMENT ME!
     */
    public void doGet(HttpServletRequest request, HttpServletResponse response)
        throws ServletException, IOException {
        ZReportJob job = null;

        try {
            job = ZReportServer.createJob(new FileInputStream("templates/table.xml"));
        } catch (Exception ex) {
            throw new ServletException(ex);
        }
        //dhtml 导出时会有临时文件导出



        try {
            ByteArrayOutputStream ba = new ByteArrayOutputStream();

            job.printAsPDF(ba);
            response.setContentType("application/pdf");

            response.setContentLength(ba.size());

            ServletOutputStream sos = response.getOutputStream();
            ba.writeTo(sos);
            sos.flush();
        } catch (Exception ex) {
            throw new ServletException(ex);
        }
    }

    //Clean up resources
    public void destroy() {
    }
}