Java使用IText(VM模版)导出PDF

2022-05-25 16:20:25

Java使用IText(VM模版)导出PDF：

public String createPDF(ProjectManageBase projectManageBase) {

Map map = new HashMap();// velocity模板中的变量

try {

//模版vm的路径

String tmPath = ServletActionContext.getServletContext()

.getRealPath(“/pdf/vm”);

String pdfPath = ServletActionContext.getServletContext()

.getRealPath(“/pdf”);//用于生成pdf，存放pdf的路径

String facePath = pdfPath + "/test.vm.pdf";// 生成的pdf

//查询数据库的数据

ProjectManageBase projectBase = (ProjectManageBase) commonDao.findByHql("from ProjectManageBase”).get(0);

map.put("projectBase", projectBase);

Projectjfys jfys = new Projectjfys();

jfys.setLiuShuiHao(projectBase.getLiushuihao());

List<Projectjfys> jfyses =

this.commonDao.findByHql("from Projectjfys”)

map.put("jfys", jfyses);// 查询经费

// 生成pdf

pdfHandler.createByVelocity(tmPath, PdfConstant.KEPU_FACE,

facePath, map);

} catch (Exception e) {

e.printStackTrace();

}

/**

* 把一个map转为json字符串，map内对象可以是字符串也可以一个个bean

* @param m 一个map

* @return

public String changeMapToStr(Map m){

if(m.equals(null)||null == m){

return null;

}else{

JSONArray json = JSONArray.fromObject(m);

return json.toString();

}

package com.gz.tools.pdf.util;

import com.gz.tools.pdf.CN_font.FontChinese;

import com.lowagie.text.Document;

import com.lowagie.text.DocumentException;

import com.lowagie.text.Font;

import com.lowagie.text.Image;

import com.lowagie.text.Rectangle;

import com.lowagie.text.pdf.PdfImportedPage;

import com.lowagie.text.pdf.PdfReader;

import com.lowagie.text.pdf.PdfWriter;

import java.io.File;

import java.io.FileOutputStream;

import java.io.OutputStream;

import java.net.URI;

import java.net.URL;

import java.util.List;

import org.xhtmlrenderer.pdf.ITextFontResolver;

import org.xhtmlrenderer.pdf.ITextRenderer;

public class PDFUtil

{

public void addToPdfUtil(PdfWriter writer, Document document, PdfReader reader)

throws DocumentException

{

int n = reader.getNumberOfPages();

Rectangle pageSize = document.getPageSize();

float docHeight = pageSize.getHeight();

float docWidth = pageSize.getWidth();

for (int i = 1; i <= n; i++) {

document.newPage();

PdfImportedPage page = writer.getImportedPage(reader, i);

Image image = Image.getInstance(page);

float imgHeight = image.getPlainHeight();

float imgWidth = image.getPlainWidth();

if (imgHeight < imgWidth) {

float temp = imgHeight;

imgHeight = imgWidth;

imgWidth = temp;

image.setRotationDegrees(90.0F);

}

if ((imgHeight > docHeight) || (imgWidth > docWidth)) {

float hc = imgHeight / docHeight;

float wc = imgWidth / docHeight;

float suoScale = 0.0F;

if (hc > wc)

suoScale = 1.0F / hc * 100.0F;

else {

suoScale = 1.0F / wc * 100.0F;

}

image.scalePercent(suoScale);

}

image.setAbsolutePosition(0.0F, 0.0F);

document.add(image);

}

public static Font toChieseFont(Font font)

{

Font newFont = null;

if (font == null) {

newFont = FontChinese.FONT;

} else {

newFont = new Font(FontChinese.BSAE_FONT, font.getSize(), font.getStyle(), font.getColor());

if (font.getFamilyname() != null) {

newFont.setFamily(font.getFamilyname());

}

return newFont;

}

public void HTML2OPDF(String htmlPath, String pdfPath, List<String> fontPaths)

throws Exception

{

String url = new File(htmlPath).toURI().toURL().toString();

OutputStream os = new FileOutputStream(pdfPath);

ITextRenderer renderer = new ITextRenderer();

ITextFontResolver fontResolver = renderer.getFontResolver();

if ((fontPaths != null) && (!fontPaths.isEmpty())) {

URL classPath = getClass().getResource("/");

for (String font : fontPaths) {

if (font.contains(":"))

fontResolver.addFont(font, "Identity-H", false);

else {

fontResolver.addFont(classPath + "/" + font, "Identity-H", false);

}

renderer.setDocument(url);

renderer.layout();

renderer.createPDF(os);

System.gc();

os.close();

System.gc();

}

package com.gz.tools.velocity;

import java.io.PrintWriter;

import java.util.Map;

import java.util.Set;

import org.apache.velocity.Template;

import org.apache.velocity.VelocityContext;

import org.apache.velocity.app.VelocityEngine;

public class VelocityUtil

{

public static boolean createFile(String localPath, String templateFileName, String newFilePath, Map<String, Object> map)

{

try

{

VelocityEngine engine = new VelocityEngine();

engine.setProperty("file.resource.loader.path", localPath);

Template template = engine.getTemplate(templateFileName, "UTF-8");

VelocityContext context = new VelocityContext();

if (map != null)

{

Object[] keys = map.keySet().toArray();

for (Object key : keys) {

String keyStr = key.toString();

context.put(keyStr, map.get(keyStr));

}

PrintWriter writer = new PrintWriter(newFilePath, "UTF-8");

template.merge(context, writer);

writer.flush();

writer.close();

return true;

} catch (Exception e) {

e.printStackTrace();

}return false;

}

package com.gz.tools.pdf.CN_font;

import com.lowagie.text.DocumentException;

import com.lowagie.text.Font;

import com.lowagie.text.pdf.BaseFont;

import java.io.IOException;

public class FontChinese

{

public static Font FONT = getChineseFont();

public static BaseFont BSAE_FONT = getBaseFont();

static Font getChineseFont() {

BaseFont bfChinese = null;

try {

bfChinese = BaseFont.createFont("STSongStd-Light", "UniGB-UCS2-H", false);

} catch (DocumentException e) {

e.printStackTrace();

} catch (IOException e) {

e.printStackTrace();

}

Font fontChinese = new Font(bfChinese);

return fontChinese;

}

static BaseFont getBaseFont() {

BaseFont bfChinese = null;

try {

bfChinese = BaseFont.createFont("STSongStd-Light", "UniGB-UCS2-H", false);

} catch (DocumentException e) {

e.printStackTrace();

} catch (IOException e) {

e.printStackTrace();

}

return bfChinese;

}

VM模版(test.vm)：

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html>

<head>

body, button, input, select, textarea {

color: color:rgb(0,0,0);

font: 14px/1.5 tahoma,arial,宋体,sans-serif;

}

margin:0;padding:0;

}

.title{

border-bottom:1px solid rgb(0,0,0);

margin:0;

padding:0;

width:90%;

height:25px;

}

li{

list-style:none;

}

.li_left li{

text-align:left;

line-height:50px;

font-size:14pt;

}

.li_left{

width:588px;

overflow:auto;

}

.fnt-21{

font-size:16pt;

}

table{

width:95%;

}

div_cls{

width:100%;

text-align:center;

}

</style>

</head>

<tr>

</td>

</tr>

<tr>

</td>

<p class="title">$projectBase.projectName</p>

</td>

</tr>

<tr>

</td>

</tr>

<tr>

</td>

<p class="title">$projectBase.typeFirst </p>

</td>

</tr>

<tr>

</td>

</tr>

<tr>

</td>

<p class="title">$projectOrg.danweimingcheng</p>

</td>

</tr>

<tr>

</td>

</tr>

<tr>

</td>

<p class="title">$projectOrg.hzdwmc1</p>

</td>

</tr>

<tr>

</td>

</tr>

<tr>

</td>

<p class="title">$projectBase.typeSecond</p>

</td>

</tr>

<tr>

</td>

</tr>

<tr>

</td>

<p class="title">$projectBase.isAcceptance</p>

</td>

</tr>

<tr>

</td>

</tr>

</table>

<br/>

<div>

<tr>

（一）总体经费预算表 </td>

</tr>

<tr>

<td width="170" align="center">区科普经费(元)</td>

</tr>

#foreach($obj in $jfys)

#if($obj.ishj!=1)

<tr>

<td width="157" align="center">$obj.kmkzname</td>

#if($obj.qkpjf!=-1)

$obj.qkpjf

#{else}

#end

</td>

#if($obj.ptjf!=-1)

$obj.ptjf

#{else}

#end

</td>

<td align="center">$obj.sm

</td>

</tr>

#{else}

<tr>

<td width="157" align="center">$obj.kmkzname</td>

#if($obj.hjqkpjf!=-1)

$obj.hjqkpjf

#{else}

#end

</td>

#if($obj.hjptjf!=-1)

$obj.hjptjf

#{else}

#end

</td>

</tr>

#end

<tr>

<td height="26" colspan="5" align="left"><p>（二）申报单位配套资金情况说明及其配套承诺 </p></td>

</tr>

<tr>

$jfys[0].zjsm

</div>

</td>

</tr>

<tr>

<td colspan="5" align="left" height="26"><p>（三）申报单位的主管部门意见 </p></td>

</tr>

<tr>

$jfys[0].zbyj

</div>

</td>

</tr>

</table>

</div>

<br/>

<p style="text-align:left;"><b class="fnt-21">八、项目组人员情况</b> </p>

<tr>

（一）项目负责人 </td>

</tr>

<tr>

</tr>

#foreach($obj in $projectZyqkfzr)

<tr>

</tr>

#end

<tr>

<td width="100%" height="32" colspan="7" align="left">（二）项目主要成员</td>

</tr>

<tr>

</tr>

#foreach($obj in $projectZyqkzy)

<tr>

</tr>

#end

</table>

</div>

</body>

</html>

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