jsp中可以往pdf文件中写入图片吗

import java.io.*;
import java.util.*;
import java.util.List;
import java.awt.*;
import com.lowagie.text.*;
import com.lowagie.text.pdf.*;
import com.lowagie.text.Image;
import com.lowagie.text.Font;
import java.text.SimpleDateFormat;/**
* Title: PDFFormatParser.java
* Description: 查询结果另存为PDF文档
* Copyright: Copyright (c) 2004
* Company: 
* @author z
* @version */public class PDFFormatParser
{
 private List dataList = null;
 //查询条件对象接口
 private SearchObject searchObject;
 private String modName;
 private USMMessageResources usmMessRes;
 //每行数据项最大长度
 private int itemsLength[] = null; public PDFFormatParser()
 {
 } public PDFFormatParser(List dataList,SearchObject searchObject,USMMessageResources usmMessRes
 ,String modName)
 {
 this.dataList = dataList;
 this.searchObject = searchObject;
 this.usmMessRes = usmMessRes;
 this.modName = modName;
 setItemsLength();
 } /**
 * 设置每个单元格的长度
 */
 public void setItemsLength()
 {
 //存储对应的数据项的长度
 String[] fieldsLength = ((DumpIF) dataList.get(0)).getFields();
 //现在对数据项个数为进行处理
 int[] itemsLength = new int[fieldsLength.length];
 if(fieldsLength.length == 9)
 {
 itemsLength = new int[]{10,30,35,20,35,25,25,30,25};
 }
 if(fieldsLength.length == 6)
 {
 itemsLength = new int[]{30,35,35,20,20,35};
 }
 if(fieldsLength.length == 7)
 {
 itemsLength = new int[]{30,30,30,30,30,30,30};
 }
 this.itemsLength = itemsLength;
 } /**
 * 打印表头
 * @return String
 */
 public String printHead()
 {
 String head = "";
 if("IPDataList".equals(modName))
 head = "left.net.perf.search";
 else if("Application".equals(modName))
 head = "performance.protocol.analyse";
 else if("AppProtocol".equals(modName))
 head = "performance.application.layer";
 else if("OthProtocol".equals(modName))
 head = "performance.otherlayer.analyse";
 else
 UspLog.error("PDFFormatParse.des() modName is invalid!"); head = usmMessRes.getMessage(head);
 return head;
 } /**
 * 打印查询条件
 * @return String
 */
 private String getCondition()
 {
 StringBuffer condition = new StringBuffer();
 condition.append(usmMessRes.getMessage("search.condition")); String[] names = searchObject.getTitles();
 String[] fields = searchObject.getFields();
 for (int i = 0; i < names.length; i++) { String field = fields[i];
 if ((field == null) || ("".equals(field))) {
 continue;
 } else {
 condition.append(usmMessRes.getMessage(names[i]) + "="
 + usmMessRes.getMessage(field) + " ");
 } }
 return condition.toString();
 } /**
 * 得到当前时间
 * @return String
 */
 public String getTime()
 {
 //获得服务器时间
 Date date = new Date();
 //时间统一格式
 SimpleDateFormat df = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss"); String serverTime = usmMessRes.getMessage("search.save.time")
 + df.format(date);
 return serverTime;
 }
/**
 * 生成PDF文档
 * @param img Image[]
 * @param out OutputStream
 */
 public void getContent(Image[] img,OutputStream out)
 {
 Document document = new Document(PageSize.A4, 20, 20, 20, 20);
 try
 {
 //将document和out绑定
 PdfWriter.getInstance(document, out);
 document.open(); DumpIF data = (DumpIF) dataList.get(0);
 String[] names = data.getTitles();
 if ("IPDataList".equals(modName))
 {
 names = getIPSeachTitle();
 }
 if ("Application".equals(modName))
 {
 names = getApplicationTitle();
 }
 if ("AppProtocol".equals(modName))
 {
 names = getAppProtocolTitle();
 }
 if ("OthProtocol".equals(modName))
 {
 names = getOthProtocolTitle();
 } //表格
 Table table = new Table(data.getFields().length);
 table.setWidths(itemsLength);
 table.setBorderWidth(1);
 table.setPadding(1); //定义字体
 BaseFont bfChinese = null;
 try
 {
 bfChinese = BaseFont.createFont("STSong-Light",
 "UniGB-UCS2-H",BaseFont.NOT_EMBEDDED);
 }
 catch (IOException ex1)
 {
 }
 catch (DocumentException ex1)
 {
 }
 Font FontChinese = new Font(bfChinese, 8, Font.NORMAL);
 Font titleFont = new Font(bfChinese,12,Font.NORMAL); Paragraph title = new Paragraph(printHead(),titleFont);
 title.setAlignment(Element.ALIGN_CENTER);
 document.add(title);
 document.add(new Paragraph(getCondition(), titleFont));
 document.add(new Paragraph(""));
 document.add(new Paragraph(""));
 document.add(new Paragraph(""));
 if("Application".equals(modName) || "AppProtocol".equals(
 modName) || "OthProtocol".equals(modName))
 {
 for (int i = 0; img != null && i < img.length; i++)
 {
 if(i!=0 && i%2==0)
 {
 document.newPage();
 }
 img[i].setAlignment(Image.ALIGN_CENTER);
 document.add(img[i]);
 document.add(new Paragraph(""));
 document.add(new Paragraph(""));
 }
 }
 document.add(new Paragraph(""));
 for (int i = 0; i < names.length; i++)
 {
 Cell cell = new Cell(new Paragraph(names[i], FontChinese));
 cell.setBackgroundColor(Color.gray);
 cell.setHorizontalAlignment(Element.ALIGN_CENTER);
 cell.setVerticalAlignment(Element.ALIGN_CENTER);
 table.addCell(cell);
 } //打印文件体
 if ("IPDataList".equals(modName))
 {
 int k = 1;
 for (int i = 0; i < dataList.size(); i++)
 {
 DumpIF datas = (DumpIF) dataList.get(i);
 String[] fields = datas.getFields();
 Cell cell0 = new Cell(new Paragraph(String.valueOf(k++),
 FontChinese));
 cell0.setHorizontalAlignment(Element.ALIGN_CENTER);
 cell0.setVerticalAlignment(Element.ALIGN_CENTER);
 table.addCell(cell0);
 for (int j = 1; j < fields.length; j++)
 {
 Cell cell1 = new Cell(new Paragraph(fields[j] == null ?
 "" : fields[j], FontChinese));
 cell1.setHorizontalAlignment(Element.ALIGN_CENTER);
 cell1.setVerticalAlignment(Element.ALIGN_CENTER);
 //cell0.setNoWrap(true);
 table.addCell(cell1);
 }
 }
 }
 else
 {
 for (int i = 0; i < dataList.size(); i++)
 {
 DumpIF datas = (DumpIF) dataList.get(i);
 String[] fields = datas.getFields();
 for (int j = 0; j < fields.length; j++)
 {
 Cell cell1 = new Cell(new Paragraph(fields[j] == null ?
 "" : fields[j], FontChinese));
 cell1.setHorizontalAlignment(Element.ALIGN_CENTER);
 cell1.setVerticalAlignment(Element.ALIGN_CENTER);
 //cell0.setNoWrap(true);
 table.addCell(cell1);
 }
 }
 }
 document.add(table);
 }
 catch (DocumentException de)
 {
 de.printStackTrace();
 System.err.println("A Document error:" + de.getMessage());
 }
 document.close();
 } }

调试易

jsp中可以往pdf文件中写入图片吗

解决方案 »