java-接收xml文本并转换为pdf上传

前言

1、需求：前端或第三方系统，将xml以文本的形式传过来，后端将此文本转为pdf上传【根据实际需求是否返回上传路径，供前端下载】。

正文开始

引用maven依赖：

<dependency>
    <groupId>com.itextpdf</groupId>
    <artifactId>html2pdf</artifactId>
    <version>1.0.2</version>
</dependency>
<dependency>
    <groupId>com.itextpdf</groupId>
    <artifactId>itext7-core</artifactId>
    <version>7.0.5</version>
    <type>pom</type>
</dependency>

controller：

@RequestMapping(value = "/ds/uploadXmlConvertPdf", method = RequestMethod.POST)
public Object uploadXmlConvertPdf(@RequestParam("file") String file) {
    try {
        return attachmentService.uploadXmlConvertPdf(file);
    } catch (Exception e) {
        return new ResultObject().setError("上传失败！" + e.getMessage());
    }
}

service：

@Override
public Object uploadXmlConvertPdf(String file) {
    File targetFile = null;
    try {
        //替换掉文档里面的转义字符，工具无法转换转义符，页面会乱码，所以不建议直接通过流转换成PDF，而是先读到内存里替换掉转义符再转
        file = file.replace(" ", " ");
        file = file.replace("–", "–");
        file = file.replace("—", "—");
        file = file.replace("‘", "‘");
        file = file.replace("’", "’");
        file = file.replace("‚", "‚");
        file = file.replace("“", "“");
        file = file.replace("”", "”");
        file = file.replace("„", "„");
        file = file.replace("′", "′");
        file = file.replace("″", "″");
        file = file.replace("‹", "‹");
        file = file.replace("›", "›");
        file = file.replace("‾", "‾");

        String referenceId = UUID.randomUUID().toString();
        //此方法为上传跟路径，可根据实际情况修改如：D://XXX
        String imageRoot = getRootPath();
        String path = imageRoot + referenceId + "/";
        String suffix = ".pdf";
        String id = UUID.randomUUID().toString();
        String fileName = id + suffix;// 新名称
        targetFile = new File(path, fileName);
        File file2 = new File(path);
        if (!file2.isDirectory())
            file2.mkdirs();
        while (targetFile.exists()) {
            targetFile = new File(path, UUID.randomUUID() + suffix);// 同名检查
        }

        try {
            HtmlConverter.convertToPdf(file, new PdfWriter(targetFile));// 写入文件
        } catch (Exception e) {
            if (targetFile != null && targetFile.exists()) {
                targetFile.delete();
            }
            e.printStackTrace();
            throw new BusinessCheckException("上传失败");
        }

    } catch (Exception e) {
        e.printStackTrace();
    }

    return targetFile;
}

测试结果：

结尾：希望本文能给您带来帮助，如有不足或错误的地方请在评论区指出，感谢~ ！！！