echarts 图形 导出到后台 word 图片加文字

用freemarker

先做一个word模板  

将word 保存成 xml 打开xml找到对应的数据的地方 换成占位符  如：${city_feature_average} 都换好后 把xml 改成ftl

public class WordHelper {
    private static final DebugPrn log = new DebugPrn(WordHelper.class.getName());

    private String templateFileName;
    private String generatedWordName;

    WordHelper(String wordName){
        this.templateFileName = wordName+".ftl";
        this.generatedWordName = wordName+".doc";
    }
    /**
     *方法功能:导出word文档
     *参数:导出文档的路径； 文档输出的httpresponse
     *返回值:
     *抛出异常:
     */
    public boolean ExportWord(String exportedWord, HttpServletResponse response) {
        OutputStream toClient = null;
        InputStream fis = null;
        File wordFile = null;
        try {
            wordFile = new File(exportedWord);
            String fileName = URLEncoder.encode(wordFile.getName(), "UTF-8");
            if(fileName.length() > 150){
                fileName = new String(fileName.getBytes("GBK"),"ISO-8859-1");
            }
            fis = new BufferedInputStream(new FileInputStream(wordFile));
            byte[] buffer = new byte[fis.available()];
            fis.read(buffer);
            toClient = new BufferedOutputStream(response.getOutputStream());
            response.reset();
            response.setContentType("application/msword");
            response.addHeader("Content-Disposition",
                    "attachment; filename=" + fileName);
            response.addHeader("Content-Length",String.valueOf(wordFile.length()));
            toClient.write(buffer);
            toClient.flush();
        } catch (Exception e) {
            log.error("export word failed"+e.getMessage(), e);
            return false;
        }finally {
            IOCloseUtil.close(fis);
            IOCloseUtil.close(toClient);
            wordFile.delete();
        }
        return true;
    }
    /**
     *方法功能:获得word模板，并将数据填入模板
     *参数:传入模板的数据，map型，key对应模板占位符
     *返回值:
     *抛出异常:
     */
    public String createWord(Map<String,Object> dataMap){
        Configuration configuration = null;
        configuration = new Configuration();
        configuration.setDefaultEncoding("utf-8");
        Template t = null;
        try {
            configuration.setDirectoryForTemplateLoading(new File(getTemplatePath()));
            t = configuration.getTemplate(this.templateFileName);
        } catch (IOException e) {
            log.error("load template failed!"+e.getMessage(), e);
            return "";
        }
        File outFile = new File(getWordPath());
        Writer out = null;
        FileOutputStream fos=null;
        try {
            fos = new FileOutputStream(outFile);
            OutputStreamWriter oWriter = new OutputStreamWriter(fos,"UTF-8");
            out = new BufferedWriter(oWriter);
            t.process(dataMap, out);
            out.flush();
        } catch (Exception e) {
            log.error("report write word stream failed"+ e.getMessage(), e);
            return "";
        }finally {
            IOCloseUtil.close(out);
            IOCloseUtil.close(fos);
        }
        return getWordPath();
    }

    private String getTemplatePath(){
        SystemSupportService smService = ServiceAccess.getSystemSupportService();
        Par par = null;
        try {
            par = smService.getDeployedPar(WordHelper.class);
        } catch (SystemSupportException e) {
            log.error("get Par's path failed!"+e.getMessage(), e);
        }
        return par.getBaseDir() +File.separator+ "conf"+File.separator+"template";
    }

    private String getWordPath(){
        return getTemplatePath()+File.separator+this.generatedWordName;
    }
}

public class ReportTaxi extends AbstractServletHandler {

    @Override
    public String response(RequestParameters requestParameters) throws IPEGException {
        initParameters(requestParameters);
        WordHelper wh = new WordHelper("taxi_report");
        String imgData = requestParameters.getRequest().getParameter("imgData").split(",")[1];
        String exportedWord = wh.createWord(WordData.getDataMap(imgData));
        if(!"".equals(exportedWord)){
            if(!wh.ExportWord(exportedWord, response)){
                return JsonHandlerUtils.faliureMessage;
            }
        }
        return JsonHandlerUtils.successMessage;

    }
}

public class WordData {
    public static Map<String, Object> getDataMap(String imgData) {
        String img_data = imgData.replace(' ','+');
        Map<String, Object> dataMap = new HashMap<String, Object>();
        dataMap.put("city_feature_average", "dfdfdfdf");
        dataMap.put("city_feature_level", "2222");
        dataMap.put("city_feature_YoY_up_down", "33333");
        dataMap.put("city_feature_MoM_up_down", "4444");
        dataMap.put("city_feature_image", img_data);
        return dataMap;
    }
}

function ExprtMonthReport(){
}

ExprtMonthReport.prototype.downLoadWord = function(img_data){
   var form=$("<form>");
   form.attr("style","display:none");
   form.attr("target","");
   form.attr("method","post");
   form.attr("action","/ipeg-web/requestDispatcher");
   var imgData=$("<input>");
   imgData.attr("type","hidden");
   imgData.attr("name","imgData");
   imgData.attr("value",img_data);
   var commandCode=$("<input>");
   commandCode.attr("type","hidden");
   commandCode.attr("name","commandCode");
   commandCode.attr("value",19203110);
   $("body").append(form);
   form.append(imgData);
   form.append(commandCode);
   form.submit();
}