pdf根据指定标记替换内容重新生成pdf

生成空白图片遮盖pdf标记

package org.plugbase.base.pdf;import java.awt.Color;import java.awt.Font;import java.awt.Graphics;import java.awt.font.FontRenderContext;import java.awt.geom.AffineTransform;import java.awt.geom.Rectangle2D;import java.awt.image.BufferedImage;import java.io.File;import javax.imageio.ImageIO;/** * 生成空白图片 *  *  */public class ImageUtil {public static void main(String[] args) throws Exception {// createImage("3158商机通", "d:/a.png");}/** * 功能：主要用于生成空白图片 *  * @param pathname *            图片路劲 * @param imgContent *            模板标记内容如：{模板} * @throws Exception */public static void createImage(String pathname, String imgContent,String fonts) throws Exception {//Font font = new Font("宋体", Font.PLAIN, 11);Font font = Loadfont.loadFont(fonts, 11);if (font == null){return;}File outFile = new File(pathname);// 获取font的样式应用在str上的整个矩形Rectangle2D r = font.getStringBounds(imgContent,new FontRenderContext(AffineTransform.getScaleInstance(1, 1), false, false));int unitHeight = (int) Math.floor(r.getHeight());// 获取单个字符的高度// 获取整个str用了font样式的宽度这里用四舍五入后+1保证宽度绝对能容纳这个字符串作为图片的宽度int width = (int) Math.round(r.getWidth()) + 1;int height = unitHeight + 1;// 把单个字符的高度+3保证高度绝对能容纳字符串作为图片的高度// 创建图片BufferedImage image = new BufferedImage(width, height, BufferedImage.TYPE_INT_BGR);Graphics g = image.getGraphics();g.setColor(Color.WHITE);g.fillRect(0, 0, width, height);// 先用白色填充整张图片,也就是背景// g.setColor(Color.black);// 在换成黑色// g.setFont(font);// 设置画笔字体// g.drawString(str, 0, font.getSize());// 画出字符串g.dispose();ImageIO.write(image, "png", outFile);// 输出png图片}}

package org.plugbase.base.pdf;import java.awt.Font;import java.io.File;import java.io.FileInputStream;/** * @ClassName: Loadfont * @Description: * @author liuyajun * @date 2016年12月21日 上午9:08:43 * */public class Loadfont {public static Font loadFont(String fontFileName, float fontSize){ // 第一个参数是外部字体名，第二个是字体大小try {File file = new File(fontFileName);FileInputStream aixing = new FileInputStream(file);Font dynamicFont = Font.createFont(Font.TRUETYPE_FONT, aixing);Font dynamicFontPt = dynamicFont.deriveFont(fontSize);aixing.close();return dynamicFontPt;} catch (Exception e){// 异常处理e.printStackTrace();return null;}}public static void main(String[] args) {Font font= loadFont("D:/home/java/contract/web/fonts/simsun.ttf",11);System.out.println(font.getFontName());}}

根据标记定位标记所在pdf文件中的坐标

package org.plugbase.base.pdf;import java.awt.Font;import java.awt.font.FontRenderContext;import java.awt.geom.AffineTransform;import java.awt.geom.Rectangle2D;import java.io.IOException;import java.util.ArrayList;import java.util.List;import com.itextpdf.awt.geom.Rectangle2D.Float;import com.itextpdf.text.pdf.PdfReader;import com.itextpdf.text.pdf.parser.ImageRenderInfo;import com.itextpdf.text.pdf.parser.PdfReaderContentParser;import com.itextpdf.text.pdf.parser.RenderListener;import com.itextpdf.text.pdf.parser.SimpleTextExtractionStrategy;import com.itextpdf.text.pdf.parser.TextExtractionStrategy;import com.itextpdf.text.pdf.parser.TextRenderInfo;/** * 定坐标 *  * @author WANCSP * */public class PdfPlace {private static StringBuffer str = null;private static int i = 0;static List<float[]> arrays = null;static String sb;static int state = 0;static float x = 0;static float y = 0;/** * 功能：根据关键字定位坐标 *  * @param filePath *            pdf路径 * @param KEY_WORD *            关键字 * @return */static List<float[]> getKeyWords(String filePath, final String KEY_WORD,final String fonts) {arrays = new ArrayList<float[]>();try {PdfReader pdfReader = new PdfReader(filePath);int pageNum = pdfReader.getNumberOfPages();PdfReaderContentParser pdfReaderContentParser = new PdfReaderContentParser(pdfReader);for (i = 1; i <= pageNum; i++) {str = new StringBuffer();pdfReaderContentParser.processContent(i, new RenderListener() {@Overridepublic void renderText(TextRenderInfo textRenderInfo) {// String text =// textRenderInfo.getBaseline().toString();String text = textRenderInfo.getText(); // 整页内容if (text != null) {Float boundingRectange = null;str.append(text);/*if (str.toString().contains("{")){String[] s = str.toString().split("\\{");state = s.length==1?0:1;if(state ==0){state = 1;boundingRectange = textRenderInfo.getBaseline().getBoundingRectange();x = boundingRectange.x;y = boundingRectange.y;}}if (str.toString().contains("}") && state ==1){state = 0;}*/if (str.toString().contains(KEY_WORD)) {boundingRectange = textRenderInfo.getBaseline().getBoundingRectange();//Font font = new Font("宋体", Font.PLAIN, 10);Font font = Loadfont.loadFont(fonts, 11);if (font == null){return;}// 获取font的样式应用在str上的整个矩形Rectangle2D r = font.getStringBounds(KEY_WORD,new FontRenderContext(AffineTransform.getScaleInstance(1, 1), false, false));// 获取整个str用了font样式的宽度这里用四舍五入后+1保证宽度绝对能容纳这个字符串作为图片的宽度int width = (int) Math.round(r.getWidth());float[] resu = new float[3];resu[0] = boundingRectange.x-width;resu[1] = boundingRectange.y;resu[2] = i;arrays.add(resu);str = new StringBuffer();}}}@Overridepublic void renderImage(ImageRenderInfo arg0) {// TODO Auto-generated method stub}@Overridepublic void endTextBlock() {}@Overridepublic void beginTextBlock() {}});}} catch (IOException e) {// TODO Auto-generated catch blocke.printStackTrace();}return arrays;}static String pdfcontent(String filePath) { PdfReader reader; String pageText = null;try {reader = new PdfReader(filePath);PdfReaderContentParser parser = new PdfReaderContentParser(reader);TextExtractionStrategy strategy = new SimpleTextExtractionStrategy();int pageCount = reader.getNumberOfPages();for (int i = 1; i <= pageCount; i++) {TextExtractionStrategy result = parser.processContent(i, strategy);pageText = result.getResultantText();System.out.println(pageText);}reader.close();} catch (IOException e) {e.printStackTrace();}return pageText;}public static void main(String[] args) throws IOException {/*List<float[]> ff = getKeyWords("D:\\ceshi\\3158商机通合同模板（4800元 年）2.pdf", "{服务项目}");for (float[] f : ff) {System.out.println(f[0] + "----" + f[1] + "-----" + f[2]);}System.out.println(sb);*/}}

项目中的实现

package org.plugbase.base.pdf;import java.io.FileOutputStream;import java.util.List;import org.plugbase.base.util.Config;import org.plugbase.contract.bean.Contract;import org.plugbase.contract.bean.Mark;import org.plugbase.contract.bean.Title;import org.plugbase.contract.util.MarkSQLMapper;import org.plugbase.contract.util.TitleSQLMapper;import com.itextpdf.text.Font;import com.itextpdf.text.Image;import com.itextpdf.text.pdf.BaseFont;import com.itextpdf.text.pdf.PdfContentByte;import com.itextpdf.text.pdf.PdfReader;import com.itextpdf.text.pdf.PdfStamper;public class PDFUtil { private static final int width = -7;//本地标记x轴调整// 项目放到linux 必须用服务器标记x轴；//private static final int width = 12;// 服务器标记x轴调整private static final int height = 2;// 标记y轴调整private static final int heightzhang = 60;// 标记y轴调整合同章/** * 功能:替换pdf指定标签内容 *  * @param over *            PdfContentByte * @param result *            坐标 * @param font *            字体 * @param page *            pdf页码 * @param img *            图片路劲 * @param imgContent *            模板标记内容如：{模板} * @return */public static PdfContentByte pdfContentByte(String fonts,PdfContentByte over, float[] result, Font font, String str, int page,String img, String imgContent) {try {if (result != null) {float x = result[0];float y = result[1];ImageUtil.createImage(img, imgContent,fonts);Image image = Image.getInstance(img);image.setAbsolutePosition(x - width, y - height);over.addImage(image);// 开始写入文本over.beginText();// 设置字体和大小over.setFontAndSize(font.getBaseFont(), 10);// 设置字体的输出位置over.setTextMatrix(x-width, y);// 要输出的textover.showText(str);System.out.println(str+":"+x+","+y);over.endText();}} catch (Exception e) {e.printStackTrace();}return over;}/** * 功能：根据标记修改pdf指定内容 *  * @param contract *            合同 * @param type *            1：创建合同 2：审核合同 * @return */public static boolean PdfSomain(Contract contract, int type) {if (contract == null || type == 0) {return false;}Config config = Config.configure("template.properties");String formal = config.get("formal");String fonts = config.get("fonts");String preview = config.get("preview");String QRcode = config.get("QRcode");String pdf = config.get("pdf");if (formal == null || formal.equals("") || fonts == null || fonts.equals("") || preview == null|| preview.equals("") || QRcode == null || QRcode.equals("") || pdf == null || pdf.equals("")) {return false;}Title title = TitleSQLMapper.getByIdTitle(contract.getTitleID());if (title == null || title.getUrls() == null || title.getUrls().equals("")) {return false;}String filePath = null;if (type == 1) {filePath = pdf + title.getUrls();} else {filePath = preview + contract.getNumName() + ".pdf";}String img = pdf + "/images/kbtp.png";if (contract.getQRcode() == null || contract.getQRcode().equals("") || contract.getNumName() == null|| contract.getNumName().equals("")) {return false;}QRcode = QRcode + contract.getQRcode();String newpdf = "";if (type == 1) {newpdf = preview + contract.getNumName() + ".pdf";} else {newpdf = formal + contract.getNumName() + ".pdf";}// 创建一个pdf读入流PdfReader reader;try {reader = new PdfReader(filePath);// 根据一个pdfreader创建一个pdfStamper.用来生成新的pdf.PdfStamper stamper = new PdfStamper(reader, new FileOutputStream(newpdf));BaseFont bf = BaseFont.createFont(fonts, BaseFont.IDENTITY_H, BaseFont.EMBEDDED); // set// font// baseFont不支持字体样式设定.但是font字体要求操作系统支持此字体会带来移植问题.Font font = new Font(bf, 10);font.setStyle(Font.BOLD);font.getBaseFont();List<float[]> result = null;// 页数是从1开始的for (int i = 1; i <= reader.getNumberOfPages(); i++) {// 获得pdfstamper在当前页的上层打印内容.也就是说 这些内容会覆盖在原先的pdf内容之上.PdfContentByte over = stamper.getOverContent(i);List<Mark> list = MarkSQLMapper.selectAllMark();int size = list.size();if (list == null || size == 0) {return false;}String str = "";//String pdfcontent = PdfPlace.pdfcontent(filePath);if (type == 1) {for (int j = 0; j < size; j++) {Mark mark = list.get(j);//if(pdfcontent !=null && pdfcontent.contains(mark.getMarks())){result = PdfPlace.getKeyWords(filePath, mark.getMarks(),fonts);if (result != null && result.size() > 0) {if (mark.getContract().equals("numName")) { //合同编号if (contract.getNumName() != null) {str = contract.getNumName();}} else if (mark.getContract().equals("partyA")) {//甲方公司if (contract.getPartyA() != null) {str = contract.getPartyA();}} else if (mark.getContract().equals("buyName")) {//购买服务if (contract.getBuyName() != null) {str = contract.getBuyName();}} else if (mark.getContract().equals("generalizeName")) {//推广项目名称if (contract.getGeneralizeName() != null) {str = contract.getGeneralizeName();}} else if (mark.getContract().equals("deadline")) {//服务期限if (contract.getDeadline() > 0) {str = contract.getDeadline()+"个月";}} else if (mark.getContract().equals("startingTime")) {//服务起始时间if (contract.getStartingTime() != null) {str = contract.getStartingTime();}} else if (mark.getContract().equals("checkoutTime")) {//付款时间if (contract.getCheckoutTime() != null) {str = contract.getCheckoutTime();}} else if (mark.getContract().equals("cost")) {//服务费用if (contract.getDouble_cost() != null) {str = contract.getDouble_cost();}} else if (mark.getContract().equals("invoice")) {//发票信息if (contract.getInvoice() != null) {str = contract.getInvoice();}} else if (mark.getContract().equals("money")) {//大写金额if (contract.getMoney() != null) {str = contract.getMoney();}} else if (mark.getContract().equals("account")) {//银行账号if (contract.getAccount() != null) {str = contract.getAccount();}} else if (mark.getContract().equals("accountName")) {//开户名if (contract.getAccountName() != null) {str = contract.getAccountName();}} else if (mark.getContract().equals("accountBank")) {//开户行if (contract.getAccountBank() != null) {str = contract.getAccountBank();}} else if (mark.getContract().equals("companyName")) {//乙方if (contract.getCompanyName() != null) {str = contract.getCompanyName();}}if (!mark.getContract().equals("empName")){for (int k = 0; k < result.size(); k++) {if (result.get(k)[2] == i){pdfContentByte(fonts,over, result.get(k), font, str, i, img, mark.getMarks());}}}//}}}} else {if (i == 1) {//添加二维码底部文字，底部文字与二维码高度保持9px,避免被覆盖over.beginText();over.setFontAndSize(font.getBaseFont(), 10);over.setTextMatrix(60, 741);over.showText("扫一扫，辨真伪");over.endText();//添加二维码图片Image image = Image.getInstance(QRcode);image.setAbsolutePosition(65, 750);image.scaleAbsolute(60, 60);over.addImage(image);}for (int j = 0; j < size; j++) {Mark mark = list.get(j);//if(pdfcontent !=null && pdfcontent.contains(mark.getMarks())){result = PdfPlace.getKeyWords(filePath, mark.getMarks(),fonts);if (result != null && result.size() > 0) {for (int k = 0; k < result.size(); k++) {if (mark.getContract().equals("empName")) {//合同章位置float x = result.get(k)[0];float y = result.get(k)[1];if (result.get(k)[2] == i){//生成空白图片遮盖标记ImageUtil.createImage(img, mark.getMarks(),fonts);Image image = Image.getInstance(img);image.setAbsolutePosition(x - width, y - height);over.addImage(image);if (contract.getAccountUrls() != null) {//插入公章String urls = pdf + contract.getAccountUrls();image = Image.getInstance(urls);image.setAbsolutePosition(x - width, y - heightzhang);image.scaleAbsolute(120, 120);over.addImage(image);}}}}}}}//}}stamper.close();} catch (Exception e) {e.printStackTrace();return false;}return true;}}