spring boot 转pdf (html转pdf)

1.引入maven

<!--pdf-->
        <dependency>
            <groupId>org.apache.velocity</groupId>
            <artifactId>velocity</artifactId>
            <version>1.7</version>
        </dependency>

        <dependency>
            <groupId>com.itextpdf</groupId>
            <artifactId>html2pdf</artifactId>
            <version>4.0.3</version>
        </dependency>
        <dependency>
            <groupId>com.itextpdf</groupId>
            <artifactId>font-asian</artifactId>
            <version>7.2.3</version>
        </dependency>

2.工具类

public class PdfUtil {

    static {
        // Velocity初始化
        Velocity.setProperty(RuntimeConstants.OUTPUT_ENCODING, StandardCharsets.UTF_8);
        Velocity.setProperty(RuntimeConstants.INPUT_ENCODING, StandardCharsets.UTF_8);
        Velocity.setProperty(RuntimeConstants.RESOURCE_LOADER, "classpath");
        Velocity.setProperty("classpath.resource.loader.class", ClasspathResourceLoader.class.getName());
        Velocity.init();
    }

    /**
     * 据模板生成pfd格式文件
     * @param context      上下文对象
     * @param template     pdf模板
     * @param outputStream 生成ofd文件输出流
     */
    public static void pdfFile(Context context, String template, OutputStream outputStream) {
        try (PdfWriter pdfWriter = new PdfWriter(outputStream)) {
            PdfDocument pdfDocument = new PdfDocument(pdfWriter);
            pdfDocument.setDefaultPageSize(PageSize.A4);

            ConverterProperties properties = new ConverterProperties();
            FontProvider fontProvider = new FontProvider();
            // 字体设置，解决中文不显示问题
            PdfFont sysFont = PdfFontFactory.createFont("STSongStd-Light", "UniGB-UCS2-H");
            fontProvider.addFont(sysFont.getFontProgram(), "UniGB-UCS2-H");
            properties.setFontProvider(fontProvider);

            Template pfdTemplate = Velocity.getTemplate(template, "UTF-8");
            StringWriter writer = new StringWriter();
            pfdTemplate.merge(context, writer);
            HtmlConverter.convertToPdf(writer.toString(), pdfDocument, properties);
            pdfDocument.close();
        } catch (Exception e) {
            throw new RuntimeException("PFD文件生成失败", e);
        }
    }

} 

3.工具类调用

@GetMapping("/downDetailPdf")
@ApiOperation(value = "导出对账单详情pdf", notes = "导出对账单详情pdf)")
public void downDetailPdf(StatementLinePageRequest request, HttpServletResponse response)  {

    String statementCode = request.getStatementCode();
    String companyId = request.getCompanyId();
    if (StringUtils.isEmpty(statementCode) && StringUtils.isEmpty(statementCode)) {
        throw new RuntimeException(EnterpriseExcelptionEnum.PARAM_NULL.getMsg());
    }
    try {
        XLBaseResponse<StatementHeaderResponse> statementResponse = statementService.getStatementResponse(statementCode, companyId);
        if(!statementResponse.isOk() || null == statementResponse.getBody()){
            throw new RuntimeException("对账单不存在");
        }
        XLBaseResponse<StatementDetailPageResponse> detailPage = statementService.getDetailPage(statementCode, companyId, request);
        if(detailPage.isOk()){
            StatementDetailPageResponse body = detailPage.getBody();

            VelocityContext context = new VelocityContext();
            StatementHeaderResponse top = statementResponse.getBody();

            context.put("top", top);
            context.put("lines", 集合);
            String fileName = new String("对账单详情-".getBytes(), "ISO-8859-1")   DateUtil.format(new Date(), DatePattern.NORM_DATETIME_PATTERN)   ".pdf";
            response.setContentType("application/vnd.ms-excel");
            response.setCharacterEncoding("utf8");
            response.setHeader("Content-Disposition", "attachment; filename="   fileName);
            response.setHeader("Cache-Control", "no-store");
            response.addHeader("Cache-Control", "max-age=0");
            PdfUtil.pdfFile(context,"templates/statementDetailsPdf.html", response.getOutputStream());
        }
    } catch (Exception e) {
        log.info("导出对账单详情pdf-异常：",e);
        throw new RuntimeException(EnterpriseExcelptionEnum.EXECUTE_FAILED.getMsg());
    }
}

 4.html模板

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>

    <body>
        <div class="ant-spin-container">
            <table>
                <tr>
                    <td class="code">对账单编号:</td>
                    <td class="code">$!{top.statementCode}</td>
                    <td style="width: 176px;">
                        <div class="status">$!{top.statementStatus}</div>
                    </td>
                </tr>
            </table>
        </div>
        #if( !$orderChange)
            <div class="a1">
                <span class="src-display-modules-ReconciliationCollaboration-components-Modification-index__title--2ferw">本单有变更：</span>
                <div class="src-display-modules-ReconciliationCollaboration-components-Modification-index__modificationData--2ViAS">
                    <div class="src-display-modules-ReconciliationCollaboration-components-Modification-index__modificationItem--1nVb4">
                        #foreach($order in $orderChange)
                            <img src="https://blog.csdn.net/qq_37782946/article/details/templates/img/xxx.png" class="src-display-modules-ReconciliationCollaboration-components-Modification-index__linkIcon--G_CVd">
                            <span>$order.statementCode</span>
                            <span class="src-display-modules-ReconciliationCollaboration-components-Modification-index__status--3LcrS">
                                #if(!$line.statementStatus == 'DRAFT')
                                    草稿
                                #elseif(!$line.statementStatus == 'SENT')
                                    已发送
                                #elseif(!$line.statementStatus == 'RECEIVED')
                                    已接收
                                #elseif(!$line.statementStatus == 'PART_ACCEPTED')
                                    部分确认
                                #elseif(!$line.statementStatus == 'ACCEPTED')
                                    全部确认
                                #elseif(!$line.statementStatus == 'SENT_FAIL')
                                    发送失败
                                #else
                                    拒绝
                                #end
                            </span>
                        #end
                    </div>
                </div>
            </div>
        #end
        <div class="src-display-modules-ReconciliationCollaboration-Payables-Detail-index__statistic--uYrBi">
            <div class="src-display-modules-ReconciliationCollaboration-Payables-Detail-index__title--YJ_hx">统计</div>
            <div class="src-display-modules-ReconciliationCollaboration-Payables-Detail-index__statisticData--Zxjwg">
                <div class="src-display-modules-ReconciliationCollaboration-Payables-Detail-index__statisticLabel--278xi">
                    <div>总条目</div>
                    <div>总税额</div>
                    <div>总金额(不含税)</div>
                    <div>价税合计</div>
                </div>
                <div class="src-display-modules-ReconciliationCollaboration-Payables-Detail-index__statisticValue--agxcR">
                    <div>$!{top.totalEntries}</div>
                    <div>$!{top.taxAmount}</div>
                    <div>$!{top.detailAmount}</div>
                    <div>$!{top.totalAmount}</div>
                </div>
            </div>
        </div>
        <div class="src-display-modules-ReconciliationCollaboration-Payables-Detail-index__dataList--3C17F">
            <div class="ant-spin-nested-loading">
                <table class="ant-table-fixed" style="width: max-content; ">
                    <tbody class="ant-table-tbody">
                        #foreach($line in $lines)
                            <tr class="ant-table-row ant-table-row-level-0" data-row-key="886490">
                                <td class="" style="text-align: center;"><span class="ant-table-row-indent indent-level-0" style="padding-left: 0px;"></span>
                                    <span>$line.lineNum</span>
                                </td>
                                <td class="" style="text-align: center;">
                                    <div style="color: rgb(153, 153, 153);">$line.changeFlag</div>
                                </td>
                                <td class="" style="text-align: center;">
                                    <div class="ellipsisText" style="width: 136px;">
                                        <span>
                                            #if(!$line.isConfirm == 1)
                                                待确认
                                            #elseif(!$line.isConfirm == 2)
                                                已确认
                                            #else
                                                拒绝
                                            #end
                                        </span>
                                    </div>
                                </td>
                                <td class="">
                                    <div class="ellipsisText" style="width: 200px;">
                                        <span>$line.goodsCode</span>
                                    </div>
                                </td>
                            </tr>
                        #end
                    </tbody>
                </table>
            </div>
        </div>
    </body>
</html>

注意

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