java导出pdf

打印pdf首先要有iText-2.1.7.jar,iTextAsian.jar

首先查询数据把想要打印的数据查询出来

我这里写的是一个task

package com.hengeasy.gris.task;import java.io.File;import java.sql.Date;import java.sql.Timestamp;import java.util.ArrayList;import java.util.HashSet;import java.util.List;import java.util.Locale;import java.util.Map;import java.util.Set;import java.util.logging.Level;import java.util.logging.Logger;import com.hengeasy.commons.bean.User;import com.hengeasy.commons.platform.transaction.Transaction;import com.hengeasy.commons.scheduler.exception.TaskExecutionException;import com.hengeasy.commons.scheduler.task.WorkItem;import com.hengeasy.commons.util.DateTimeUtils;import com.hengeasy.gris.bean.ConsumeLog;import com.hengeasy.gris.dao.ConsumeLogDAO;import com.hengeasy.gris.dao.factory.DAOInstances;import com.hengeasy.gris.messages.GrisMessages;import com.hengeasy.gris.platform.GrisPlatform;import com.hengeasy.gris.transaction.TransactionFactory;import com.hengeasy.gris.util.PdfUtils;import com.hengeasy.profiles.dao.UserDAO;public class ConsumeLogConvertPdfTask extends WorkItem{  public ConsumeLogConvertPdfTask()  {    super(false);  }  private static final Logger log = Logger.getLogger(ConsumeLogConvertPdfTask.class.getName());  private static final DAOInstances DAO = new DAOInstances();  private static final UserDAO<User> UserDAO = new com.hengeasy.profiles.dao.factory.DAOInstances().User;  private static final ConsumeLogDAO<ConsumeLog> ConsumeLogDAO = DAO.CONSUME_LOG;  private static final Locale LOCALE = GrisPlatform.SYSTEM_LOCALE;  private static final int YESTERDAY = -1;  @Override  public void runWork() throws Throwable  {    if (log.isLoggable(Level.FINER))    {      log.entering(ConsumeLogConvertPdfTask.class.getName(), "runWork()");    }    Transaction transaction = TransactionFactory.getTransaction();    Date endDate = DateTimeUtils.getCurrentDate();    Date beginDate = DateTimeUtils.calculateDate(endDate, YESTERDAY);    try    {      transaction.begin();      Set<Long> gymIds = ConsumeLogDAO.getGymId(transaction.getConnection(), beginDate, endDate);      ;      if (gymIds.size() > 0)      {        // pdf保存路径        File file = new File("c:" + File.separator + beginDate);        if (!file.exists())        {          file.mkdir();        }        Timestamp now = DateTimeUtils.getCurrentTimestamp();        for (Long gymId : gymIds)        {          List<ConsumeLog> consumeLogs = ConsumeLogDAO.getByGymId(transaction.getConnection(), ConsumeLogDAO.verbosity().PDF_VIEW, gymId,              beginDate, endDate);          if (consumeLogs != null && consumeLogs.size() > 0)          {            Set<Long> userIds = new HashSet<Long>();            for (ConsumeLog consumeLog : consumeLogs)            {              userIds.add(consumeLog.getLastUpdateUser());            }            Map<Long, User> users = UserDAO.getByIds(com.hengeasy.profiles.transaction.TransactionFactory.getTransaction().getConnection(),                UserDAO.verbosity().SAME_AREA_USERS_VIEW, new ArrayList<Long>(userIds));            //打印pdf调用方法            PdfUtils.consumeLogPdf(consumeLogs, users, file.getPath() + File.separator + gymId + ".pdf");          }        }        System.out.println("task 执行完毕！");      }      transaction.commit();    }    catch (Throwable e)    {      transaction.rollback();      log.log(Level.SEVERE, GrisMessages.RUN_TASK_ERROR_1.formatMessage(LOCALE, new Object[] { ConsumeLogConvertPdfTask.class.getName() }),          e);      throw new TaskExecutionException(e);    }    finally    {      if (log.isLoggable(Level.FINER))      {        log.exiting(ConsumeLogConvertPdfTask.class.getName(), "runWork()");      }    }  }}

打印pdf的类

package com.hengeasy.gris.util;import java.io.File;import java.io.FileOutputStream;import java.io.IOException;import java.util.List;import java.util.Map;import com.hengeasy.commons.bean.User;import com.hengeasy.gris.bean.ConsumeLog;import com.hengeasy.gris.bean.Order.PayStyle;import com.lowagie.text.BadElementException;import com.lowagie.text.Cell;import com.lowagie.text.Document;import com.lowagie.text.DocumentException;import com.lowagie.text.Element;import com.lowagie.text.Font;import com.lowagie.text.PageSize;import com.lowagie.text.Paragraph;import com.lowagie.text.Table;import com.lowagie.text.pdf.BaseFont;import com.lowagie.text.pdf.PdfWriter;public class PdfUtils{  private static final String CONSUMELOG_TITLE[] = { "操作员", "消费者", "金额", "会员卡号", "会员卡余额", "日期", "消费类型" };  private static final float WIDTH = 30f;  private static final float[] widths = new float[] { 1f * WIDTH, 1f * WIDTH, 1f * WIDTH, 1.5f * WIDTH, 1f * WIDTH, 1f * WIDTH, 1f * WIDTH };  private static final String THIRDPARTY_PAY = "第三方支付流水";  private static final String MEMBER_CARD = "会员卡支付流水";  private static final String CASH = "现金支付流水";  private static final String AMOUNT = "金额 :  ";  private static BaseFont bfChinese;  private static Font titleFont;  private static Font contextFont;  static  {    try    {// 设置中文字体      bfChinese = BaseFont.createFont("STSongStd-Light", "UniGB-UCS2-H", BaseFont.NOT_EMBEDDED);      // 正文字体风格      contextFont = new Font(bfChinese, 5, Font.NORMAL);      // 标题字体风格      titleFont = new Font(bfChinese, 6, Font.NORMAL);    }    catch (DocumentException e)    {      e.printStackTrace();    }    catch (IOException e)    {      e.printStackTrace();    }  }  public static void consumeLogPdf(List<ConsumeLog> consumeLogs, Map<Long, User> users, String path) throws DocumentException, IOException  {    Document document = getDocument(path);    // 打开文档。    document.open();    Table tableOne = createTable(widths.length, widths);    Table tableTwo = createTable(widths.length, widths);    Table tableThree = createTable(widths.length, widths);    // 表的标题栏    createTbaleTitle(tableOne, CONSUMELOG_TITLE);    createTbaleTitle(tableTwo, CONSUMELOG_TITLE);    createTbaleTitle(tableThree, CONSUMELOG_TITLE);    // 表的数据    double thirdparty_pay_coount = 0;    double member_card_count = 0;    double cash_cout = 0;    for (ConsumeLog consumeLog : consumeLogs)    {      if (PayStyle.THIRDPARTY_PAY.equals(consumeLog.getPayStyle()))      {        // 第三方支付方式        createTbaleDate(tableOne, consumeLog, users);        thirdparty_pay_coount += consumeLog.getCost();      }      else if (PayStyle.MEMBER_CARD.equals(consumeLog.getPayStyle()))      {        // 会员卡        createTbaleDate(tableTwo, consumeLog, users);        member_card_count += consumeLog.getCost();      }      else      {        // 现金支付        createTbaleDate(tableThree, consumeLog, users);        cash_cout += consumeLog.getCost();      }    }    document.add(getParagraph(THIRDPARTY_PAY, titleFont, Element.ALIGN_LEFT));    // 第三方支付删除会员卡与会员卡余额    tableOne.deleteColumn(3);    tableOne.deleteColumn(3);    document.add(tableOne);    document.add(getParagraph(AMOUNT + thirdparty_pay_coount + "\n\n\n\n", titleFont, Element.ALIGN_RIGHT));    document.add(getParagraph(MEMBER_CARD, titleFont, Element.ALIGN_LEFT));    document.add(tableTwo);    document.add(getParagraph(AMOUNT + member_card_count + "\n\n\n\n", titleFont, Element.ALIGN_RIGHT));    document.add(getParagraph(CASH, titleFont, Element.ALIGN_LEFT));    // 现金支付删除会员卡与会员卡余额    tableThree.deleteColumn(3);    tableThree.deleteColumn(3);    document.add(tableThree);    document.add(getParagraph(AMOUNT + cash_cout + "\n\n\n\n", titleFont, Element.ALIGN_RIGHT));    document.close();  }  private static Paragraph getParagraph(String title, Font font, int direction)  {    Paragraph paragraph = new Paragraph(title, font);    paragraph.setAlignment(direction);    return paragraph;  }  /**   * 创建表的表头   *    * @param table   * @param title   * @throws BadElementException   */  private static void createTbaleTitle(Table table, String[] title) throws BadElementException  {    for (int i = 0; i < title.length; i++)    {      table.addCell(new Cell(new Paragraph(title[i], contextFont)));    }  }  /**   * 创建表的数据   *    * @param table   * @param consumeLog   * @param users   * @param count   * @throws BadElementException   */  private static void createTbaleDate(Table table, ConsumeLog consumeLog, Map<Long, User> users) throws BadElementException  {    // "操作员", "消费者", "金额", "会员卡号", "会员卡余额", "日期","消费类型";    table.addCell(new Cell(new Paragraph(users.get(consumeLog.getLastUpdateUser()).getName(), contextFont)));    table.addCell(new Cell(new Paragraph(consumeLog.getName(), contextFont)));    table.addCell(new Cell(new Paragraph(String.valueOf(consumeLog.getCost()), contextFont)));    table.addCell(new Cell(new Paragraph(String.valueOf(consumeLog.getMemberCardNo()), contextFont)));    table.addCell(new Cell(new Paragraph(String.valueOf(consumeLog.getBalance()), contextFont)));    table.addCell(new Cell(new Paragraph(consumeLog.getSysCreateDate().toString()        .substring(0, consumeLog.getSysCreateDate().toString().indexOf(".")), contextFont)));    table.addCell(new Cell(new Paragraph(consumeLog.getCostType().getCostTypeName(), contextFont)));  }  /**   * 初始化表   *    * @param table   * @throws BadElementException   */  private static Table createTable(int cell, float[] widths) throws BadElementException  {    Table table = new Table(cell);    table.setWidths(widths);    table.setWidth(100);// 占页面宽度比例    table.setBorder(0);    // table.setBorderWidth(0);// 边框宽度    table.setAlignment(Element.ALIGN_CENTER);// 居中    // table.setAlignment(Element.ALIGN_MIDDLE);// 垂直居中    table.setAutoFillEmptyCells(true);// 自动填满    // table.setLockedWidth(true);    table.setPadding(2.2f);    return table;  }  private static Document getDocument(String path) throws DocumentException, IOException  {    // 建立com.lowagie.text.Document对象的实例。    Document document = new Document(PageSize.A4, 20, 20, 0, 0);    // 建立一个书写器(Writer)与document对象关联，通过书写器(Writer)可以将文档写入到磁盘中。    PdfWriter writer = PdfWriter.getInstance(document, new FileOutputStream(new File(path)));    // 设置页页事件监听器    // writer.setPageEvent(new PDFUtil());    return document;  }}