07版的数据没显示出来

package com.imooc.service;

import java.io.FileInputStream;

import java.io.IOException;

import java.util.List;

import java.util.Map;

import org.apache.poi.hwpf.HWPFDocument;

import org.apache.poi.hwpf.usermodel.Range;

import org.apache.poi.poifs.filesystem.OfficeXmlFileException;

import org.apache.poi.xwpf.usermodel.XWPFDocument;

import org.apache.poi.xwpf.usermodel.XWPFParagraph;

import org.apache.poi.xwpf.usermodel.XWPFRun;

import com.imooc.dto.ImportWordParamDto;

import com.imooc.dto.ImportWordResultDto;

public class WordService {

public ImportWordResultDto imp(ImportWordParamDto dto) {

ImportWordResultDto result=new ImportWordResultDto();

//03版和07版word结构相差较大，基本上没有什么可以重用的或者说定义相同的方法去解析的

result.setTitle(dto.getTitle());

HWPFDocument doc=null;

//03版

try {

doc=new HWPFDocument(dto.getWord().getInputStream());

//内容已经读出来了；解析的是word里的内容，而不是格式

result.setContent(doc.getDocumentText().replace("\r", "<br/>"));

}catch(OfficeXmlFileException oe) {

System.out.println("这是一个07版的Word");

}

catch (Exception e) {

// TODO Auto-generated catch block

result.setMsg("这可能不是一个Word");

return result;

}finally {

if(doc != null) {

try {

doc.close();

return result;

} catch (IOException e) {

// TODO Auto-generated catch block

e.printStackTrace();

}

}

}

//07版

XWPFDocument docx=null;

try {

docx=new XWPFDocument(dto.getWord().getInputStream());

//获取所有段落

List<XWPFParagraph> paragraphList=docx.getParagraphs();

//循环段落，把每一段拼成字符串

StringBuffer content=new StringBuffer();

for(int i=0;i<paragraphList.size();i++) {

if(i != 0) {

content.append("<br/>");

}

content.append(paragraphList.get(i).getText());

}

result.setContent(content.toString());

} catch (IOException e) {

// TODO Auto-generated catch block

e.printStackTrace();

}finally {

if(docx != null) {

try {

docx.close();

} catch (IOException e) {

// TODO Auto-generated catch block

e.printStackTrace();

}

}

}

return result;

}

/*

* export

* 读出来的字符串，

* 我们可以把这个纯文字的字符串里内容替换掉，

* 之后，把这个内容和原来模板的格式再给它合上

* 

* 对象提供的方法，能帮我们去做替换的动作，但还保留

* 原来的格式，只有这样才是在原来word模板上去做修改，

* 

* 替换完之后，再将你替换完的这个对象，写入到新的文件里，

* 重新生成新的Word

*/

public HWPFDocument export03(Map<String,String> replaceContent) {

HWPFDocument doc=null;

//03版

try {

doc=new HWPFDocument(new FileInputStream("D:\\template\\template_03.doc"));

//获取范围

Range range=doc.getRange();

//循环map，把它迭代出来

for(Map.Entry<String, String> entry : replaceContent.entrySet()) {

//Range里有replaceText();将什么替换成什么

range.replaceText(entry.getKey(),entry.getValue());

}

}

catch (Exception e) {

return null;

}

return doc;

}

public XWPFDocument export07(Map<String,String> replaceContent) {

XWPFDocument docx=null;

//07版

try {

docx=new XWPFDocument(new FileInputStream("D:\\template\\template_07.docx"));

List<XWPFParagraph> paragraphList=docx.getParagraphs();

for(XWPFParagraph paragraph : paragraphList) {

List<XWPFRun> runs= paragraph.getRuns();

for(XWPFRun run : runs) {

String str=run.getText(run.getTextPosition());

    for(Map.Entry<String, String> entry : replaceContent.entrySet()) {

str.replace(entry.getKey(), entry.getValue());

}

//把它在塞回run里面，这样的话，这个动作就完成了

//0表示是从获取的每一小段的第一个字开始给换掉

run.setText(str,0);

}

}

}

catch (Exception e) {

return null;

}

return docx;

}

}

package com.imooc.servlet;

import java.io.IOException;

import java.util.HashMap;

import java.util.Map;

import javax.servlet.ServletException;

import javax.servlet.ServletOutputStream;

import javax.servlet.http.HttpServlet;

import javax.servlet.http.HttpServletRequest;

import javax.servlet.http.HttpServletResponse;

import org.apache.poi.hwpf.HWPFDocument;

import org.apache.poi.xwpf.usermodel.XWPFDocument;

import com.imooc.service.WordService;

public class ExportWordServlet extends HttpServlet{

@Override

protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {

// TODO Auto-generated method stub

this.doPost(req, resp);

}

@Override

protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {

// TODO Auto-generated method stub

req.setCharacterEncoding("UTF-8");

WordService service=new WordService();

Map<String,String> param=new HashMap<>();

param.put("${name}", req.getParameter("name"));

param.put("${age}", req.getParameter("age"));

param.put("${time}", req.getParameter("time"));

ServletOutputStream outputStream=resp.getOutputStream();

if(req.getParameter("isDocx") != null && !"".equals(req.getParameter("isDocx"))) {

XWPFDocument docx=service.export07(param);

resp.setHeader("Content-Disposition", "attachment;filename=export.docx");

docx.write(outputStream);

docx.close();

}else {

HWPFDocument doc=service.export03(param);

resp.setHeader("Content-Disposition", "attachment;filename=export.doc");

doc.write(outputStream);

doc.close();

}

outputStream.flush();

outputStream.close();

}

}

刚开始出错时，docx.write(outputStream);报的是这个位置是空指针异常，后来启动/调试几次，控制台就不报错了，就是没数据。