Struts+iText生成Pdf报表

àì夳堔傛蜴生んèń 2022-08-26 01:23 289阅读 0赞

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 <td> 发布日期：2007-10-26 作者：jfish 出处：http://blog.csdn.net </td> 
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 <td> &nbsp; 1.iText简介 iText是一个能够快速产生PDF文件的java类库。iText的java类对于那些要产生包含文本，表格， 图形的只读文档是很有用的。它的类库尤其与java Servlet有很好的给合。使用iText与PDF能够 使你正确的控制Servlet的输出。 下载：<a href="http://www.lowagie.com/iText/download.html" rel="nofollow">http://www.lowagie.com/iText/download.html</a> 中文包下载：<a href="http://itextdocs.lowagie.com/downloads/iTextAsian.jar" rel="nofollow">http://itextdocs.lowagie.com/downloads/iTextAsian.jar</a> 开发指南：<a href="http://itextdocs.lowagie.com/tutorial/" rel="nofollow">http://itextdocs.lowagie.com/tutorial/</a> 2.struts+iText开发实例 下面举例介绍一下用struts+itext开发生成pdf： UserPdfViewAction.java package net.pms.web.action; import java.io.ByteArrayOutputStream; import java.io.IOException; import java.util.List; import javax.servlet.ServletException; import javax.servlet.ServletOutputStream; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import net.pms.model.PmsUser; import net.pms.service.UserManager; import org.apache.struts.action.Action; import org.apache.struts.action.ActionForm; import org.apache.struts.action.ActionForward; import org.apache.struts.action.ActionMapping; import com.lowagie.text.Document; import com.lowagie.text.DocumentException; import com.lowagie.text.Font; import com.lowagie.text.Paragraph; import com.lowagie.text.pdf.BaseFont; import com.lowagie.text.pdf.PdfPCell; import com.lowagie.text.pdf.PdfPTable; import com.lowagie.text.pdf.PdfWriter; public class UserPdfViewAction extends Action { &nbsp; &nbsp; &nbsp;private static final String CONTENT_TYPE = "application/pdf"; &nbsp; &nbsp; &nbsp;private UserManager mgr = null; &nbsp; &nbsp; &nbsp;private PmsUser b = null; &nbsp; &nbsp; &nbsp;public void setUserManager(UserManager userManager) { &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;this.mgr = userManager; &nbsp; &nbsp; &nbsp;} &nbsp; &nbsp; &nbsp;public ActionForward execute(ActionMapping mapping, ActionForm form, &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;HttpServletRequest request, HttpServletResponse response) &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;throws IOException, ServletException, DocumentException { &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;response.setContentType(CONTENT_TYPE); &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;BaseFont bfChinese = null; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;try { &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;bfChinese = BaseFont.createFont("STSong-Light", "UniGB-UCS2-H",BaseFont.NOT_EMBEDDED); &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;} catch (DocumentException e) { &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;e.printStackTrace(); &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;} catch (IOException e) { &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;e.printStackTrace(); &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;} &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;Font FontChinese = new Font(bfChinese, 12, Font.NORMAL); &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;try { &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;//Document document = new Document(PageSize.A4.rotate(), 10, 10, 10, 10); &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;//Document document = new Document(PageSize.A4, 36, 36, 36, 36); &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;Document document = new Document(); &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;ByteArrayOutputStream ba = new ByteArrayOutputStream(); &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;try { &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;// &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;PdfWriter.getInstance(document, ba); &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;document.open(); &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;PdfPTable table = new PdfPTable(6); &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;table.setWidthPercentage(80f); &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;PdfPCell h1 = new PdfPCell(new Paragraph("编号", FontChinese)); &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;PdfPCell h2 = new PdfPCell(new Paragraph("登陆名", FontChinese)); &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;PdfPCell h3 = new PdfPCell(new Paragraph("姓名", FontChinese)); &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;PdfPCell h4 = new PdfPCell(new Paragraph("部门", FontChinese)); &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;PdfPCell h5 = new PdfPCell(new Paragraph("职务", FontChinese)); &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;PdfPCell h6 = new PdfPCell(new Paragraph("创建时间", FontChinese)); &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;table.setHeaderRows(1); &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;table.addCell(h1); &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;table.addCell(h2); &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;table.addCell(h3); &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;table.addCell(h4); &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;table.addCell(h5); &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;table.addCell(h6); &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;PdfPCell cell; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;List list = mgr&nbsp;.getPmsUsers("from PmsUser p where p.active='Y'"); &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;for (short i = 0; i &lt; list.size(); i++) { &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;b = (PmsUser) list.get(i); &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;cell = new PdfPCell(new Paragraph(String.valueOf(i + 1),&nbsp;FontChinese)); &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;table.addCell(cell); &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;cell = new PdfPCell(new Paragraph(b.getLoginname(),FontChinese)); &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;table.addCell(cell); &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;cell = new PdfPCell(new Paragraph(b.getName(), FontChinese)); &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;table.addCell(cell); &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;cell = new PdfPCell(new Paragraph(b.getPmsDept().getName(),FontChinese)); &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;table.addCell(cell); &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;cell = new PdfPCell(new Paragraph(b.getPmsDuty().getName(),FontChinese)); &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;table.addCell(cell); &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;cell = new PdfPCell(new Paragraph(b.getTs().toString().substring(0, 16), FontChinese)); &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;table.addCell(cell); &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;} &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;document.add(table); &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;} catch (DocumentException de) { &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;System.err.println(de.getMessage()); &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;} &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;document.close(); &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;response.setContentLength(ba.size()); &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;ServletOutputStream out = response.getOutputStream(); &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;ba.writeTo(out); &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;out.flush(); &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;out.close(); &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;return null; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;} catch (Throwable e) { &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;e.printStackTrace(); &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;} &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;return new ActionForward(mapping.getInput()); &nbsp; &nbsp; &nbsp;} } </td> 
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