前言
这是两三年前刚实习时，项目经理要求我研究一下模板文件动态生成word、pdf，最近在整理笔记时将其翻了出来
操作步骤
引入依赖
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-freemarker</artifactId>
</dependency>
复制代码将word模板文件转换为ftl文件
点击另存为.xml格式文件
重命名为 信息表.ftl 即可
将ftl文件转换为docx文件
代码如下
import freemarker.template.Configuration;
import freemarker.template.Template;
import freemarker.template.TemplateException;
import java.io.*;
import java.util.Date;
import java.util.HashMap;
import java.util.Map;
public class DocUtil {
private Configuration configuration = null;
public DocUtil() {
configuration = new Configuration();
configuration.setDefaultEncoding("utf-8");
}
/**
*
* @param dataMap 入参数据
* @param ftlPath ftl文件存放路径（不包括文件名）
* @param ftlName ftl文件名
* @param outfile 生成的docx文件
* @throws UnsupportedEncodingException
*/
public void createDoc(Map<String, Object> dataMap, String outfile,String ftlPath,String ftlName) throws UnsupportedEncodingException {
//dataMap 要填入模本的数据文件
//设置模本装置方法和路径,FreeMarker支持多种模板装载方法。可以重servlet，classpath，数据库装载，
//这里我们的模板是放在template包下面
// configuration.setClassForTemplateLoading(this.getClass(), ftlPath);
Template template = null;
try {
//test.ftl为要装载的模板
// 基于文件系统。 比如加载/home/user/template下的模板文件。
configuration.setDirectoryForTemplateLoading(new File(ftlPath));
template = configuration.getTemplate(ftlName);
} catch (IOException e) {
e.printStackTrace();
}
//输出文档路径及名称
File outFile = new File(outfile);
Writer out = null;
FileOutputStream fos = null;
try {
fos = new FileOutputStream(outFile);
OutputStreamWriter oWriter = new OutputStreamWriter(fos, "UTF-8");
//这个地方对流的编码不可或缺，使用main（）单独调用时，应该可以，但是如果是web请求导出时导出后word文档就会打不开，并且包XML文件错误。主要是编码格式不正确，无法解析。
//out = new BufferedWriter(new OutputStreamWriter(new FileOutputStream(outFile)));
out = new BufferedWriter(oWriter);
} catch (FileNotFoundException e1) {
e1.printStackTrace();
}
try {
template.process(dataMap, out);
out.close();
fos.close();
} catch (TemplateException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
public static void main(String[] args) throws UnsupportedEncodingException {
String tmpFilePath = "C:"+
File.separator+"tmp"+File.separator;
String ftlPath ="C:"+File.separator+"ftl"+File.separator;
Map<String, Object> dataMap = new HashMap<>();
long time = new Date().getTime();
String ftlFile = "信息表.ftl";
String outDocFile = tmpFilePath+"信息表"+time+".docx";
// String outPdfFile = tmpFilePath+"信息表"+time +".pdf";
// ftl由系统自动带出的数据
dataMap.put("name","joahyan");
dataMap.put("birthay","Oct 23th 1995");
dataMap.put("sex","男");
dataMap.put("age","24");
DocUtil docUtil = new DocUtil();
docUtil.createDoc(dataMap,outDocFile,ftlPath,ftlFile);
}
}
复制代码生成的word文件
word再转pdf
public Result downloadEnglishProficiency(@RequestBody AbilityProofDTO abilityProofDTO) throws IOException {
AttributeValue attributeValue = attributeValueService.getAttributeByKey("CUHK_OAL_ENGLISH");
String attachmenturl = attributeValueService.getAttributeByKey("UCM_PRE_DOWNLOAD_URL").getPropertyValue();
Date currentDate = new Date();
String birthday = null;
SimpleDateFormat dateFormat = new SimpleDateFormat("d MMM yyyy", Locale.ENGLISH);
String folderId = attributeValue.getPropertyValue();
Integer apId = Integer.parseInt(abilityProofDTO.getApId());
String itName = null;
ApplicationVO applicationVO = null;
if (apId != null) {
applicationVO = applicationService.queryAllDetails(apId);
birthday = dateFormat.format(applicationVO.getBirthday());
} else {
return ResultUtil.error();
}
DocUtil docUtil = new DocUtil();
DocToPdfUtil docToPdfUtil =new DocToPdfUtil();
Map<String, Object> dataMap = new HashMap<>();
// ftl由系统自动带出的数据
dataMap.put("CurrentDate",dateFormat.format(currentDate));
dataMap.put("StudentName",applicationVO.getPinyinName());
dataMap.put("BirthDay",birthday);
FileInputStream fileInputStream = null;
//输入、输出的文件
String outDocFile = tmpFilePath+"Statement of English Language Proficiency"+currentDate.getTime()+".docx";
String outPdfFile = tmpFilePath+"Statement of English Language Proficiency"+currentDate.getTime()+".pdf";
FileUtils fileUtil = new FileUtils();
File tmpFile = new File(tmpFilePath);
File outDoc = new File(outDocFile);
File outPdf = new File(outPdfFile);
//删除上一次存储的文件和目录
if (!tmpFile.exists()){
tmpFile.mkdir();
} else {
fileUtil.deleteDirectory(tmpFilePath);
tmpFile.mkdir();
}
try {
Map<String, String> attrs = new HashMap<String, String>();
// 生成docx文件
docUtil.createDoc(dataMap, outDocFile);
// 返回一个输入流，将文件存入到数据库中
fileInputStream = DocToPdfUtil.convertDocxToPDF(outDocFile, outPdfFile);
String attachmentSize = String.valueOf(fileInputStream.available());
RidcHandler rh = new RidcHandler("sysadmin");
LocalDate nowDate = LocalDate.now();
String yearAndMouth = nowDate.toString().substring(0, 7);
String childFolderId = "";
List<ContentEntry> folderList = rh.getFileList(folderId, "FOLDER");
if (null == folderList || folderList.isEmpty()){
childFolderId = rh.createFolder(yearAndMouth, folderId);
} else {
Optional<ContentEntry> childFolder = folderList.stream().filter(
folder -> yearAndMouth.equals(folder.getContentName())).findAny();
if (childFolder.isPresent()){
childFolderId = childFolder.get().getContentId();
} else {
childFolderId = rh.createFolder(yearAndMouth, folderId);
}
}
String result = rh.createPublicFile("Statement of English Language Proficiency"+"-"+applicationVO.getStudentId()+"-"+
currentDate.getTime()+".pdf", fileInputStream, childFolderId);
CertificateDTO CertificateDTO = new CertificateDTO();
CertificateDTO.setCertificateUrl(attachmenturl + result);
CertificateDTO.setCertificateSize(attachmentSize);
CertificateDTO.setVoId(abilityProofDTO.getVoId());
int resultValue = applicationService.updateCertificateUrl(CertificateDTO);
if (resultValue == 1) {
return ResultUtil.success("生成英文能力证明成功");
}
return ResultUtil.error("生成英文能力证明失败");
} catch (Exception e) {
logger.info(e.getMessage());
return ResultUtil.error("转换失败");
} finally {
if (fileInputStream != null) {
fileInputStream.close();
}
}
}
复制代码
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