iText生成PDF 格式报表

1.导包

 <dependency>
            <groupId>com.lowagie</groupId>
            <artifactId>itext</artifactId>
            <version>4.2.1</version>
        </dependency>
        <dependency>
            <groupId>com.itextpdf</groupId>
            <artifactId>itext-asian</artifactId>
            <version>5.2.0</version>
  </dependency>

2.添加导出按钮

例如:<a id="exportXlsBtn" icon="icon-print" href="#" class="easyui-linkbutton" plain="true">导出Excel按钮</a>

3.添加导出事件  例如:

$("#exportXlsBtn").click(function(){
                    $("#searchForm").attr("action","../../report_exportXls.action");
                    $("#searchForm").submit();
                                   });

4.编写ExportAction,添加exportXls方法  五步走.1.create a document 2.get a pdfWriter instance 3.open a docement 4.add content 5.close the document

 @Action(value = "report_exportXls")
    public String exportXls() throws IOException {
        // 查询出满足当前条件 结果数据
        List<WayBill> wayBills = wayBillService.findWayBills(model);
// 下载导出,一个流两个头
        // 设置头信息
        ServletActionContext.getResponse().setContentType("application/vnd.ms-excel");//设置文件类型MIME类型
        String filename="运单数据.xls";
        String agent = ServletActionContext.getRequest().getHeader("user-agent");//获得浏览器的类型
        filename = FileUtils.encodeDownloadFilename(filename, agent);//进行编码
        ServletActionContext.getResponse().setHeader("Content-Disposition",
                "attachment;filename=" + filename);

//生成PDF文件

Document document = new Document();

PdfWriter.getInstance(document,ServletActionContext.getResponse().getOutputStream);             document.open();

//写PDF数据,

// 向document 生成pdf表格
        Table table = new Table(6);
        table.setWidth(80); // 宽度
        table.setBorder(1); // 边框
        table.getDefaultCell().setHorizontalAlignment(Element.ALIGN_CENTER); // 水平对齐方式
        table.getDefaultCell().setVerticalAlignment(Element.ALIGN_TOP); // 垂直对齐方式

        // 设置表格字体
        BaseFont cn = BaseFont.createFont("STSongStd-Light", "UniGB-UCS2-H", false);
        Font font = new Font(cn, 10, Font.NORMAL, Color.BLUE);

        // 向表格写数据
        // 表头
        table.addCell(buildCell("编号", font));
        table.addCell(buildCell("到达地", font));
        table.addCell(buildCell("货物", font));
        table.addCell(buildCell("数量", font));
        table.addCell(buildCell("重量", font));
        table.addCell(buildCell("配载要求", font));

        // 表格数据
        for (WorkOrderManage workOrderManage : workOrderManages) {
            table.addCell(buildCell(workOrderManage.getId(), font));
            table.addCell(buildCell(workOrderManage.getArrivecity(), font));
            table.addCell(buildCell(workOrderManage.getProduct(), font));
            table.addCell(buildCell(workOrderManage.getNum().toPlainString(), font));
            table.addCell(buildCell(workOrderManage.getWeight().toString(), font));
            table.addCell(buildCell(workOrderManage.getFloadreqr(), font));
        }

        // 向文档添加表格
        document.add(table);
     document.close();
原文地址:https://www.cnblogs.com/wwwzzz/p/8215449.html