Struts+iText生成Pdf报表
2006-04-21 08:54
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[b]Struts+iText生成Pdf报表 作者: jfish 发表日期: 2006-01-16 09:21 文章属性: 原创 复制链接 [/b] |
Struts+iText生成Pdf报表 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:http://www.lowagie.com/iText/download.html 中文包下载:http://itextdocs.lowagie.com/downloads/iTextAsian.jar 开发指南:http://itextdocs.lowagie.com/tutorial/ 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 { private static final String CONTENT_TYPE = "application/pdf"; private UserManager mgr = null; private PmsUser b = null; public void setUserManager(UserManager userManager) { this.mgr = userManager; } public ActionForward execute(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response) throws IOException, ServletException, DocumentException { response.setContentType(CONTENT_TYPE); BaseFont bfChinese = null; try { bfChinese = BaseFont.createFont("STSong-Light", "UniGB-UCS2-H",BaseFont.NOT_EMBEDDED); } catch (DocumentException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } Font FontChinese = new Font(bfChinese, 12, Font.NORMAL); try { //Document document = new Document(PageSize.A4.rotate(), 10, 10, 10, 10); //Document document = new Document(PageSize.A4, 36, 36, 36, 36); Document document = new Document(); ByteArrayOutputStream ba = new ByteArrayOutputStream(); try { // PdfWriter.getInstance(document, ba); document.open(); PdfPTable table = new PdfPTable(6); table.setWidthPercentage(80f); PdfPCell h1 = new PdfPCell(new Paragraph("编号", FontChinese)); PdfPCell h2 = new PdfPCell(new Paragraph("登陆名", FontChinese)); PdfPCell h3 = new PdfPCell(new Paragraph("姓名", FontChinese)); PdfPCell h4 = new PdfPCell(new Paragraph("部门", FontChinese)); PdfPCell h5 = new PdfPCell(new Paragraph("职务", FontChinese)); PdfPCell h6 = new PdfPCell(new Paragraph("创建时间", FontChinese)); table.setHeaderRows(1); table.addCell(h1); table.addCell(h2); table.addCell(h3); table.addCell(h4); table.addCell(h5); table.addCell(h6); PdfPCell cell; List list = mgr .getPmsUsers("from PmsUser p where p.active='Y'"); for (short i = 0; i < list.size(); i++) { b = (PmsUser) list.get(i); cell = new PdfPCell(new Paragraph(String.valueOf(i + 1), FontChinese)); table.addCell(cell); cell = new PdfPCell(new Paragraph(b.getLoginname(),FontChinese)); table.addCell(cell); cell = new PdfPCell(new Paragraph(b.getName(), FontChinese)); table.addCell(cell); cell = new PdfPCell(new Paragraph(b.getPmsDept().getName(),FontChinese)); table.addCell(cell); cell = new PdfPCell(new Paragraph(b.getPmsDuty().getName(),FontChinese)); table.addCell(cell); cell = new PdfPCell(new Paragraph(b.getTs().toString().substring(0, 16), FontChinese)); table.addCell(cell); } document.add(table); } catch (DocumentException de) { System.err.println(de.getMessage()); } document.close(); response.setContentLength(ba.size()); ServletOutputStream out = response.getOutputStream(); ba.writeTo(out); out.flush(); out.close(); return null; } catch (Throwable e) { e.printStackTrace(); } return new ActionForward(mapping.getInput()); } } |
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