使用FreeMarker导出word文档(支持导出图片)

今天跟大家分享一下工作中比较实用的导出word 带图片的功能。

对于在idea开发中我们需要引入以下依赖：

2.对于eclipse 开发我们需要进入对应的jar包

这个必须放在lib下，同样也需要在当前项目的环境是加入该依赖

需要在MEAT-INF加入

首先制定word 导出模版格式，用占位符进行代替

对于插入的图片提前设置好大小格式

编写好后：进行另存为 html 格式或者xml

接着用编辑文本打开修改里面的内容

对于插入图片的时候请注意：在src 的时候也用占位符。

注意：所有的占位符要与代码中的Hashmap 中的key，保持一致。

编写代码：

 @RequestMapping(value = "/exportWord")
	  public void exportWord(HttpServletRequest request, HttpServletResponse response, @RequestParam(value = "id") String id ) throws Exception{
	  	List<Map<String, Object>> list = new ArrayList<Map<String,Object>>();
			ArrayList<String> parameters = new ArrayList<String>();
			List<Map<String,Object>> queryResult2 = limitspaceworkBizc.findyxkjzydc(id);
			if(queryResult2.size()>0){
				list.add(queryResult2.get(0));
			}
			
			Map<String, Object> query = list.get(0);
			exportWord(request, response, query, "明细表.docx",id);
	  }
	  public void exportWord(HttpServletRequest request,
				HttpServletResponse response, Map<String, Object> query, String fileName,String id) throws IOException, InvalidFormatException {
		   //获取 模版的路径
		    String pathString = request.getSession().getServletContext().getRealPath("/WEB-INF/templete/");
		    System.out.println("获取到的模板路径是：templetePath------->" + pathString);
	  	 Configuration  configuration = new Configuration(new Version("2.3.23"));
	    configuration.setDefaultEncoding("utf-8");
	    configuration.setDirectoryForTemplateLoading(new File(pathString));
	    
	  	Template freemarkerTemplate = configuration.getTemplate("yxkjzydmysd.ftl");
	      File file = null;
	      InputStream fin = null;
	      ServletOutputStream out = null;
	      try {
	    		String SPDimage =null;
	   		 List<LimitSpaceWorkExportpo> vos = new ArrayList<LimitSpaceWorkExportpo>();
	   		LimitSpaceWorkExportpo  aa=	  new LimitSpaceWorkExportpo();
	    	
	   	 Map<String,Object> map3=limitspaceworkBizc.findrwtp(id);
	   	   Map<String,Object> map = new HashMap<String,Object>();
	   	   map.put("BH", query.get("BH")==null?"":query.get("BH").toString());
	   	   map.put("ZCGLDW", query.get("ZCGLDW")==null?"":query.get("ZCGLDW").toString());
			 map.put("SZDQ", query.get("SZDQ")==null?"":query.get("SZDQ").toString());
			 map.put("ZYLX", query.get("ZYLX")==null?"":query.get("ZYLX").toString());
			 map.put("ZYMC", query.get("ZYMC")==null?"":query.get("ZYMC").toString());
			 map.put("GCXZ", query.get("GCXZ")==null?"":query.get("GCXZ").toString());
			 map.put("GCZZDW", query.get("GCZZDW")==null?"":query.get("GCZZDW").toString());
			 map.put("LXR", query.get("LXR")==null?"":query.get("LXR").toString());
			 map.put("LXDH", query.get("LXDH")==null?"":query.get("LXDH").toString());
			 map.put("ZYFW", query.get("ZYFW")==null?"":query.get("ZYFW").toString());
			 map.put("ZYNR", query.get("ZYNR")==null?"":query.get("ZYNR").toString());
			 map.put("ZYSQR", query.get("ZYSQR")==null?"":query.get("ZYSQR").toString());
			 map.put("ZYDW", query.get("ZYDW")==null?"":query.get("ZYDW").toString());
			 map.put("ZYSQRDH", query.get("ZYSQRDH")==null?"":query.get("ZYSQRDH").toString());
			 map.put("XCFZR", query.get("XCFZR")==null?"":query.get("XCFZR").toString());
			 map.put("XCFZRDH", query.get("XCFZRDH")==null?"":query.get("XCFZRDH").toString());

			 map.put("AQXYS", map3.get("AQXYS")==null?"":map3.get("AQXYS").toString());
			 map.put("SPD", map3.get("SPD")==null?"":map3.get("SPD").toString());
			 map.put("CND", map3.get("CND")==null?"":map3.get("CND").toString());
			 map.put("GZS", map3.get("GZS")==null?"":map3.get("GZS").toString());
			 map.put("GJCX", map3.get("GJCX")==null?"":map3.get("GJCX").toString());

	          // 调用工具类的createDoc方法生成Word文档
	          file = createDoc(map,freemarkerTemplate);
	          fin = new FileInputStream(file);
	          response.setCharacterEncoding("utf-8");
	          response.setContentType("application/msword");
	          // 设置浏览器以下载的方式处理该文件名
			fileName = URLEncoder.encode("断面验收报告" + ".docx", "UTF-8");
				response.setHeader("Content-disposition", "attachment; filename="
				+ fileName + ";filename*=utf-8" + fileName);
	          out = response.getOutputStream();
	          byte[] buffer = new byte[512];  // 缓冲区
	          int bytesToRead = -1;
	          // 通过循环将读入的Word文件的内容输出到浏览器中
	          while((bytesToRead = fin.read(buffer)) != -1) {
	              out.write(buffer, 0, bytesToRead);
	          }
	      } finally {
	          if(fin != null) fin.close();
	          if(out != null) out.close();
	          if(file != null) file.delete(); // 删除临时文件
	      }
		   
	  }

指定编码格式：

	private static File createDoc(Map<String, Object> dataMap, Template template) {
	      String name =  ".doc";
	      File f = new File(name);
	      Template t = template;
	      try {
	          // 这个地方不能使用FileWriter因为需要指定编码类型否则生成的Word文档会因为有无法识别的编码而无法打开
	          Writer w = new OutputStreamWriter(new FileOutputStream(f), "utf-8");
	          t.process(dataMap, w);
	          w.close();
	      } catch (Exception ex) {
	          ex.printStackTrace();
	          throw new RuntimeException(ex);
	      }
	      return f;
	  }

效果图展示：