java 使用 Html2Image 将 html 转图片

<artifactId>html2image</artifactId>

<version>0.9</version>

</dependency>

<dependency>

<groupId>cn.hutool</groupId>

<artifactId>hutool-all</artifactId>

<version>5.0.6</version>

</dependency>

转换代码

HtmlImageGenerator imageGenerator = new HtmlImageGenerator();

String htmlstr = "<table style="width: 700px;font-size:16px;font-family: 'Microsoft YaHei';" cellpadding="0" cellspacing="0">\n" +

" <tr >\n" +

" <th style="background-color: #f2f2f2;height: 30px;width: 700px; border:1px solid #e6e6e6;b 《一线大厂 Java 面试题解析+后端开发学习笔记+最新架构讲解视频+实战项目源码讲义》无偿开源 威信搜索公众号【编程进阶路】 order-top:none;text-align: center;color: #333333;" colspan="2">收据</th>\n" +

" </tr>\n" +

" <tr style="width: 700px;">\n" +

" <td style="border:1px solid #e6e6e6;border-top:none;text-align: center;color: #666666;height: 30px;" >日期</td>\n" +

" <td style="border:1px solid #e6e6e6;border-top:none;text-align: center;color: #666666;border-left: 0px;height: 30px;">"+DateUtil.format(saleOrder.getCreateTime(), "yyyy-MM-dd HH:mm:ss")+"</td>\n" +

" </tr>\n" +

" <tr style="width: 700px;">\n" +

" <td style="border:1px solid #e6e6e6;border-top:none;text-align: center;color: #666666;height: 30px;">交易编号</td>\n" +

" <td style="border:1px solid #e6e6e6;border-top:none;text-align: center;color: #666666;border-left: 0px;height: 30px;">"+saleOrder.getOrderCode()+"</td>\n" +

" </tr>\n" +

" <tr style="width: 700px;">\n" +

" <td style="border:1px solid #e6e6e6;border-top:none;text-align: center;color: #666666;height: 30px;">交易类型</td>\n" +

" <td style="border:1px solid #e6e6e6;border-top:none;text-align: center;color: #666666;border-left: 0px;height: 30px;">捐赠</td>\n" +

" </tr>\n" +

" <tr style="width: 700px;">\n" +

" <td style="border:1px solid #e6e6e6;border-top:none;text-align: center;color: #666666;height: 30px;">交易金额</td>\n" +

" <td style="border:1px solid #e6e6e6;border-top:none;text-align: center;color: #666666;border-left: 0px;height: 30px;">"+saleOrder.getProductPrice()+"</td>\n" +

" </tr>\n" +

" <tr style="width: 700px;">\n" +

" <td style="border:1px solid #e6e6e6;border-top:none;text-align: center;color: #666666;height: 30px;">付款人</td>\n" +

" <td style="border:1px solid #e6e6e6;border-top:none;text-align: center;color: #666666;border-left: 0px;height: 30px;">"+saleOrder.getUserName()+"</td>\n" +

" </tr>" +

"</table>";

imageGenerator.loadHtml(htmlstr);

BufferedImage bufferedImage = getGrayPicture(imageGenerator.getBufferedImage());

ByteArrayOutputStream outputStream = new ByteArrayOutputStream();

try {

ImageIO.write(bufferedImage, "jpg", outputStream);

String base64Img = Base64.encodeBase64String(outputStream.toByteArray());

String res = "data:image/jpg;base64," + base64Img.toString();

modelAndView.addObject("imageres", res);

} catch (IOException e) {

e.printStackTrace();

}finally {

if(outputStream != null){

try {

outputStream.close();

} catch (IOException e) {

e.printStackTrace();

}

}

}

这个是用于重新设置画布背景颜色的?