iText导出word入门

最近一个项目需要导出word文档，网上了解了一下，发现poi导出excel比较好，但是导出word就力不从心了，大家都比较推荐iText，于是试了试，感觉还不错。

我用的是2.1.7版本。

1. 使用maven导入依赖

     <dependency>
<groupId>com.lowagie</groupId>
<artifactId>itext</artifactId>
<version>2.1.7</version>
</dependency>
<dependency>
<groupId>com.lowagie</groupId>
<artifactId>itext-rtf</artifactId>
<version>2.1.7</version>
</dependency>

还有一个包是itextasian-1.5.2.jar， 这是在各个maven库没有找到，而我因为一些原因不方便建自己的maven库，所以只好直接在项目里面添加依赖。

2. 贴上完整的代码

    package com.sofree.web.utils;

import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.util.List;

import com.lowagie.text.BadElementException;
import com.lowagie.text.Cell;
import com.lowagie.text.Chunk;
import com.lowagie.text.Document;
import com.lowagie.text.DocumentException;
import com.lowagie.text.Element;
import com.lowagie.text.Font;
import com.lowagie.text.PageSize;
import com.lowagie.text.Paragraph;
import com.lowagie.text.Phrase;
import com.lowagie.text.Table;
import com.lowagie.text.pdf.BaseFont;
import com.lowagie.text.rtf.RtfWriter2;
import com.sofree.business.model.TaKyxmApplyperson;
import com.sofree.business.model.TaKyxmApplyteacher;
import com.sofree.business.model.TaKyxmProjectinfo;

/**
* @author Jack
*
*/
public class ExportWordUtil {

public static ByteArrayOutputStream exportProjectWord(TaKyxmProjectinfo obj) {
try {
// 设置纸张大小
Document document = new Document(PageSize.A4);
ByteArrayOutputStream buffer = new ByteArrayOutputStream();
// 建立一个书写器，与document对象关联
RtfWriter2.getInstance(document, buffer);
document.open();
// 设置中文字体
BaseFont bfChinese = BaseFont.createFont("STSongStd-Light", "UniGB-UCS2-H", BaseFont.NOT_EMBEDDED);
// 正文字体风格
Font contextFont = new Font(bfChinese, 10, Font.NORMAL);
document.add(getTitle(bfChinese));
document.add(getProjectName(contextFont, obj));
// 设置Table表格,创建一个六列的表格
Table table = new Table(6);
int width[] = { 5, 10, 15, 25, 15, 30 };// 设置每列宽度比例
table.setWidths(width);
table.setWidth(95);// 占页面宽度比例
table.setAlignment(Element.ALIGN_CENTER);// 居中
//table.setAlignment(Element.ALIGN_MIDDLE);// 垂直居中
table.setAutoFillEmptyCells(true);// 自动填满
table.setBorderWidth(1);// 边框宽度
table.setPadding(5);
// 设置表头
/*Cell haderCell = new Cell("表格表头");
haderCell.setHeader(true);
haderCell.setColspan(4);
table.addCell(haderCell);
table.endHeaders();*/

Font fontChinese = new Font(bfChinese, 10, Font.NORMAL);
table.addCell(getCell("项目名称", 1, 2, Element.ALIGN_MIDDLE, fontChinese));
table.addCell(getCell(obj.getXmmc(), 1, 2, Element.ALIGN_MIDDLE, fontChinese));
table.addCell(getCell("项目负责人", fontChinese));
table.addCell(getCell(obj.getOwner().getYhm(),fontChinese));
table.addCell(getCell("申请经费", 1, 2, Element.ALIGN_MIDDLE,fontChinese));
table.addCell(getCell(String.valueOf(obj.getSqjf()), 1, 2, Element.ALIGN_MIDDLE, fontChinese));
table.addCell(getCell("依托实验室名称", fontChinese));
table.addCell(getCell(obj.getLab().getSysmc(), fontChinese));

List<TaKyxmApplyperson> stuList = obj.getStudentList();
table.addCell(getCell("团队成员", stuList.size() + 1, 1, Element.ALIGN_CENTER, fontChinese));
table.addCell(getCell("姓名", fontChinese));
table.addCell(getCell("学号", fontChinese));
table.addCell(getCell("所学专业", fontChinese));
table.addCell(getCell("联系电话", fontChinese));
table.addCell(getCell("E-mail", fontChinese));
for(TaKyxmApplyperson stu : stuList){
table.addCell(getCell(stu.getXm(), fontChinese));
table.addCell(getCell(stu.getXh(), fontChinese));
table.addCell(getCell(stu.getSxzy(), fontChinese));
table.addCell(getCell(stu.getLxdh(), fontChinese));
table.addCell(getCell(stu.getEmail(), fontChinese));
}

List<TaKyxmApplyteacher> teaList = obj.getTeacherList();
table.addCell(getCell("指导教师", teaList.size() + 1, 1, Element.ALIGN_CENTER, fontChinese));
table.addCell(getCell("姓名", fontChinese));
table.addCell(getCell("单位", fontChinese));
table.addCell(getCell("职务/职称", fontChinese));
table.addCell(getCell("联系电话", fontChinese));
table.addCell(getCell("E-mail", fontChinese));
for(TaKyxmApplyteacher tea : teaList){
table.addCell(getCell(tea.getXm(), fontChinese));
table.addCell(getCell(tea.getDw(), fontChinese));
table.addCell(getCell(tea.getZw(), fontChinese));
table.addCell(getCell(tea.getLxdh(), fontChinese));
table.addCell(getCell(tea.getEmail(), fontChinese));
}

table.addCell(getCell("立项的意义及预期达到的效果", 1, 2, Element.ALIGN_MIDDLE,fontChinese));
Paragraph lxyyxg = new Paragraph(obj.getLxyyxg(), fontChinese);
lxyyxg.setAlignment(Element.ALIGN_LEFT);
lxyyxg.setFirstLineIndent(20);
lxyyxg.add(Chunk.NEWLINE);
lxyyxg.add(Chunk.NEWLINE);
table.addCell(getCell(lxyyxg, 1, 4, Element.ALIGN_MIDDLE));

Paragraph xmzynr = new Paragraph(obj.getXmzynr(), fontChinese);
xmzynr.setAlignment(Element.ALIGN_LEFT);
xmzynr.setFirstLineIndent(20);
xmzynr.add(Chunk.NEWLINE);
xmzynr.add(Chunk.NEWLINE);
table.addCell(getCell("项目的主要内容、实验方案设计及创新点", 1, 2, Element.ALIGN_MIDDLE,fontChinese));
table.addCell(getCell(xmzynr, 1, 4, Element.ALIGN_MIDDLE));

table.addCell(getCell("经费具体预算（元）", 7, 2, Element.ALIGN_MIDDLE,fontChinese));
table.addCell(getCell("科目", 1, 2, Element.ALIGN_MIDDLE, fontChinese));
table.addCell(getCell("预算明细", 1, 2, Element.ALIGN_MIDDLE, fontChinese));
table.addCell(getCell("实验耗材", 1, 2, Element.ALIGN_MIDDLE, fontChinese));
table.addCell(getCell("", 1, 2, Element.ALIGN_MIDDLE, fontChinese));
table.addCell(getCell("实验小工具", 1, 2, Element.ALIGN_MIDDLE, fontChinese));
table.addCell(getCell("", 1, 2, Element.ALIGN_MIDDLE, fontChinese));
table.addCell(getCell("加工费", 1, 2, Element.ALIGN_MIDDLE, fontChinese));
table.addCell(getCell("", 1, 2, Element.ALIGN_MIDDLE, fontChinese));
table.addCell(getCell("机时费", 1, 2, Element.ALIGN_MIDDLE, fontChinese));
table.addCell(getCell("", 1, 2, Element.ALIGN_MIDDLE, fontChinese));
table.addCell(getCell("其它", 1, 2, Element.ALIGN_MIDDLE, fontChinese));
table.addCell(getCell("", 1, 2, Element.ALIGN_MIDDLE, fontChinese));
table.addCell(getCell("合计：", 1, 2, Element.ALIGN_MIDDLE, fontChinese));
table.addCell(getCell("", 1, 2, Element.ALIGN_MIDDLE, fontChinese));

table.addCell(getCell("指导教师意见", 1, 2, Element.ALIGN_MIDDLE,fontChinese));
Paragraph pa = new Paragraph("", fontChinese);
pa.add(Chunk.NEWLINE);
pa.add(Chunk.NEWLINE);
pa.add(Chunk.NEWLINE);
pa.add(Chunk.NEWLINE);
pa.add(Chunk.NEWLINE);
pa.add(Chunk.NEWLINE);
Phrase p1 = new Phrase(" 负责人签字：");
pa.add(p1);
pa.add(Chunk.NEWLINE);
pa.add(new Phrase(" 年 月 日"));

table.addCell(getCell(pa, 1, 4, Element.ALIGN_MIDDLE));

table.addCell(getCell("依托实验室意见(可行性)", 1, 2, Element.ALIGN_MIDDLE,fontChinese));
table.addCell(getCell(pa, 1, 4, Element.ALIGN_MIDDLE));

table.addCell(getCell("组织申报单位意见", 1, 2, Element.ALIGN_MIDDLE,fontChinese));
table.addCell(getCell(pa, 1, 4, Element.ALIGN_MIDDLE));

Paragraph pa2 = new Paragraph("", fontChinese);
pa2.add(Chunk.NEWLINE);
pa2.add(Chunk.NEWLINE);
pa2.add(Chunk.NEWLINE);
pa2.add(Chunk.NEWLINE);
pa2.add(Chunk.NEWLINE);
pa2.add(Chunk.NEWLINE);
Phrase p2 = new Phrase(" 组长：");
pa2.add(p2);
pa2.add(Chunk.NEWLINE);
Phrase p3 = new Phrase(" 成员：");
pa2.add(p3);
pa2.add(Chunk.NEWLINE);
pa2.add(new Phrase(" 年 月 日"));
table.addCell(getCell("学校专家组意见", 1, 2, Element.ALIGN_MIDDLE,fontChinese));
table.addCell(getCell(pa2, 1, 4, Element.ALIGN_MIDDLE));

table.addCell(getCell("学校审批意见", 1, 2, Element.ALIGN_MIDDLE,fontChinese));
table.addCell(getCell(pa, 1, 4, Element.ALIGN_MIDDLE));

document.add(table);
document.close();
return buffer;
} catch (DocumentException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
return null;
}

private static Cell getCell(String content, Font font){
return getCell(content, 1, 1, Element.ALIGN_MIDDLE, font);
}

private static Cell getCell(String content, int rowSpan, int colSpan, int align, Font font){
Paragraph pa = new Paragraph(content, font);
pa.setAlignment(Element.ALIGN_CENTER);
return getCell(pa, rowSpan, colSpan, align);
}

private static Cell getCell(Paragraph content, int rowSpan, int colSpan, int align){
try {
Cell cell = new Cell(content);
cell.setColspan(colSpan);
cell.setRowspan(rowSpan);
cell.setUseAscender(true);
cell.setVerticalAlignment(align);
cell.setVerticalAlignment(Element.ALIGN_CENTER);
cell.setLeading(30);
return cell;
} catch (BadElementException e) {
e.printStackTrace();
}
return null;
}

private static Paragraph getTitle(BaseFont bfChinese){
Paragraph title = new Paragraph("某某大学教学实验室开放基金立项申请表");
// 设置标题格式对齐方式
title.setAlignment(Element.ALIGN_CENTER);
// 标题字体风格
Font titleFont = new Font(bfChinese, 12, Font.BOLD);
title.setFont(titleFont);
return title;
}

private static Paragraph getProjectName(Font contextFont, TaKyxmProjectinfo obj){
Paragraph context = new Paragraph();
context.add(Chunk.NEWLINE);
context.add(Chunk.NEWLINE);
context.setAlignment(Element.ALIGN_LEFT);
context.setFont(contextFont);
// 段间距
//context.setSpacingBefore(1);
// 设置第一行空的列数
context.setFirstLineIndent(20);
Phrase p1 = new Phrase("申报单位名称(公章):" + obj.getSbdw().getDwmc());
context.add(p1);
Phrase p2 = new Phrase(" 编号:" + obj.getXmbh());
context.add(p2);
return context;
}
}
生成出来的大概效果如图：

这里有几个地方要注意：

1. 设置表格居中，我开始是设置 cell.setVerticalAlignment(Element.ALIGN_CENTER); 但是没有效果，后来设置对cell里面的Paragraph设置居中，就有效果了

        Paragraph pa = new Paragraph(content, font);

        pa.setAlignment(Element.ALIGN_CENTER);

2. 通过Chunk.NEWLINE 可以增加一个新行。

参考资料：
http://www.cnblogs.com/julyluo/archive/2012/06/23/2559580.html