itext 生成doc文档 小结(自己备忘)

1、引入maven

     <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>

2、大致流程

//创建一条文本对象(A4纸张)
Document document = new Document(PageSize.A4);

//创建一个DOC文档(根据指定的路径)
RtfWriter2.getInstance(document, new FileOutputStream(file_url));

//打开文本对象
document.open();

//添加一个简单的段落
document.add(new Paragraph("Hello World!"));

//结束编写
document.close();

3、字体

//设置基础字体 -- 宋体
BaseFont bfChinese = BaseFont.createFont("C:/Windows/Fonts/simfang.ttf", BaseFont.IDENTITY_H, BaseFont.NOT_EMBEDDED);


//设置字体 (含有大小、颜色……)
Font titleFont = new Font(bfChinese, 14.0F, 1); //字体:宋体   大小:14.0F   加粗
Font contextFont = new Font(bfChinese, 14.0F, 0); //字体:宋体   大小:14.0F   不加粗
Font contextFont_red = new Font(bfChinese, 14.0F, 0, Color.red); //字体:宋体   大小:14.0F   不加粗  字体颜色:红色
Font contextFont_black = new Font(bfChinese, 14.0F, 0, Color.black);//字体:宋体   大小:14.0F   不加粗  字体颜色:黑色
Font headerFooterFont = new Font(bfChinese, 9.0F, 0);//字体:宋体   大小:9.0F   不加粗

4、设置头 和 页码数

全局变量

private static String TECH_INFO = "这里是顶部";  //头部标语
private static String FOOT_INFO = "这里是底部";  //底部标语

头部

Table header = new Table(2);
header.setBorder(0);
header.setWidth(100.0F);

Paragraph address = new Paragraph(TECH_INFO);
address.setFont(headerFooterFont);
Cell cell01 = new Cell(address);
cell01.setBorder(0);
header.addCell(cell01);

Paragraph date = new Paragraph("生成日期: " +
        new SimpleDateFormat("yyyy-MM-dd").format(new Date()));
date.setAlignment(2);
date.setFont(headerFooterFont);
cell01 = new Cell(date);
cell01.setBorder(0);
header.addCell(cell01);
document.setHeader(new RtfHeaderFooter(header));

底部(页码数)

Table footer = new Table(2);
footer.setBorder(0);
footer.setWidth(100.0F);

Paragraph company = new Paragraph(FOOT_INFO);
company.setFont(headerFooterFont);
Cell cell02 = new Cell(company);
cell02.setBorder(0);
footer.addCell(cell02);

Paragraph pageNumber = new Paragraph("第 ");
pageNumber.add(new RtfPageNumber());
pageNumber.add(new Chunk(" 页"));
pageNumber.setAlignment(2);
pageNumber.setFont(headerFooterFont);
cell02 = new Cell(pageNumber);
cell02.setBorder(0);
footer.addCell(cell02);

document.setFooter(new RtfHeaderFooter(footer));

5、表格

Table table1 = new Table(4);//创建表格

int width[] = {18,32,18,32};//设置每列宽度比例

table1.setWidths(width);//设置每列宽度比例

table1.setWidth(95);//占页面宽度比例

//第一行 第一个
Cell cell11 = new Cell(new Paragraph("11",contextFont));
cell11.setVerticalAlignment(Element.ALIGN_TOP);      //垂直 居上
cell11.setHorizontalAlignment(Element.ALIGN_RIGHT);  //水平 居右
cell11.setBorder(0);

//第一行 第二个
Cell cell12 = new Cell("12");
cell12.setVerticalAlignment(Element.ALIGN_BOTTOM);  //垂直 居下
cell12.setHorizontalAlignment(Element.ALIGN_LEFT);  //水平 居左
cell12.setBorder(0);


//第一行 第三个
Cell cell13 = new Cell(new Paragraph("13",contextFont));
cell13.setVerticalAlignment(Element.ALIGN_MIDDLE);  //垂直 居中
cell13.setHorizontalAlignment(Element.ALIGN_RIGHT); //水平 居右
cell13.setBorder(0);

//第一行 第四个
Cell cell14 = new Cell(new Paragraph("14",contextFont));
cell14.setVerticalAlignment(Element.ALIGN_MIDDLE);  //垂直 居中
cell14.setHorizontalAlignment(Element.ALIGN_LEFT);  //水平 居左
cell14.setBorder(0);

table1.addCell(cell11);
table1.addCell(cell12);
table1.addCell(cell13);
table1.addCell(cell14);

document.add(table1);

6、插入图片

//图片路径
String URL = "http://www.baidu.com/img/bd_logo1.png";
//创建图片
Image img = null;
try {
    img = Image.getInstance(URL);
    img.scalePercent(10);
} catch (BadElementException e) {
    e.printStackTrace();
} catch (IOException e) {
    e.printStackTrace();
}
//内容
Paragraph context = new Paragraph();
context.setAlignment(1);
context.setFont(contextFont);
if(img == null){
    context.add("没有图片");
}else{
    context.add(img);
}
document.add(context);
原文地址:https://www.cnblogs.com/xyt-0412/p/6549662.html