cn.com.report.HtmlServlet2.java Source code

Introduction

Here is the source code for cn.com.report.HtmlServlet2.java

Source

/**
 * DynamicReports - Free Java reporting library for creating reports dynamically
 *
 * Copyright (C) 2010 Ricardo Mariaca
 * http://dynamicreports.sourceforge.net
 *
 * This file is part of DynamicReports.
 *
 * DynamicReports is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * DynamicReports is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with DynamicReports. If not, see <http://www.gnu.org/licenses/>.
 */

package cn.com.report;

import static net.sf.dynamicreports.report.builder.DynamicReports.export;
import static net.sf.dynamicreports.report.builder.DynamicReports.report;

import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.HashMap;
import java.util.Map;

import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.apache.commons.io.FileUtils;

import net.sf.dynamicreports.jasper.builder.JasperReportBuilder;
import net.sf.dynamicreports.jasper.builder.export.JasperPdfExporterBuilder;
import net.sf.dynamicreports.report.builder.datatype.BigDecimalType;
import net.sf.dynamicreports.report.datasource.DRDataSource;
import net.sf.dynamicreports.report.exception.DRException;
import net.sf.jasperreports.engine.JRDataSource;

/**
 * @author Ricardo Mariaca (dynamicreports@gmail.com)
 */
@WebServlet("/pdfServlet")
public class HtmlServlet2 extends HttpServlet {
    private static final long serialVersionUID = 1L;

    @Override
    public void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
        InputStream is = HtmlServlet2.class.getResourceAsStream("Blank_A4.jrxml");
        resp.setContentType("application/pdf");

        OutputStream out = resp.getOutputStream();
        JasperPdfExporterBuilder pdfExporter = export.pdfExporter(out);
        try {
            JasperReportBuilder report = report();

            report.setTemplate(Templates.reportTemplate).setTemplateDesign(is).setParameters(createParameters())
                    /*.columns(
                       col.column("Item",       "item",      type.stringType()),
                       col.column("?",   "quantity",  type.integerType()),
                       col.column("Unit price", "unitprice", type.integerType()))*/
                    //           .title(Templates.createTitleComponent("TestDRByDiyDesigner"))
                    .setDataSource(createDataSource()).show(false);
            File tempFile = File.createTempFile("xjjjxxxxxxxxx", ".pdf");
            report.toPdf(new FileOutputStream(tempFile));
            out.write(FileUtils.readFileToByteArray(tempFile));
            System.out.println("%%%%%%%%%%" + tempFile.getCanonicalPath());
            //         report.toPdf(pdfExporter);//?pdf?  
        } catch (DRException e) {
            e.printStackTrace();
        }
        out.close();
    }

    @Override
    public void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
        doGet(req, resp);
    }

    private class CurrencyType extends BigDecimalType {
        private static final long serialVersionUID = 1L;

        @Override
        public String getPattern() {
            return "$ #,###.00";
        }
    }

    private Map<String, Object> createParameters() {
        Map<String, Object> parameters = new HashMap<String, Object>();
        parameters.put("yuwen", "98");
        parameters.put("shuxue", "100");
        parameters.put("yingyu", "90");
        parameters.put("shengwu", "99");
        parameters.put("wuli", "99");
        parameters.put("huaxue", "88");
        parameters.put("name", "");
        parameters.put("id", "201710122015");
        parameters.put("rank", "1");
        parameters.put("maxsubject", "");
        return parameters;
    }

    private JRDataSource createDataSource() {
        DRDataSource dataSource = new DRDataSource("yuwen", "shuxue", "yingyu", "shengwu", "wuli", "huaxue", "name",
                "id", "rank", "maxsubject");
        /*for (int i = 0; i < 10; i++) {
           dataSource.add("Book", (int) (Math.random() * 10) + 1, (int) (Math.random() * 100) + 1);
        }*/
        dataSource.add("98", "100", "90", "99", "99", "88", "", "201710122015", "1", "");
        return dataSource;
    }
}