8、jeecg 笔记之自定义word 模板导出（一）

1、前言

jeecg 中已经自带 word 的导出导出功能，其所使用的也是 easypoi，尽管所导出的 word 能满足大部分需求，

但总是有需要用到自定义 word导出模板，下文所用到的皆是 easypoi 提供的，为方便下次翻阅，故记之。

2、代码部分

2.1、controller

@RequestMapping("/ftl2word")
public void velocity2word(JeecgDemoExcelEntity jeecgDemoExcel, HttpServletRequest request,HttpServletResponse response) throws IOException {try {jeecgDemoExcel = this.jeecgDemoExcelService.getEntity(JeecgDemoExcelEntity.class, jeecgDemoExcel.getId());List<Map<String, Object>> departs = this.systemService.findForJdbc("select id,departname from t_s_depart");String docFileName = "word-模板导出测试.doc";Map<String, Object> rootMap = new HashMap<String, Object>();rootMap.put("info", jeecgDemoExcel);rootMap.put("departs", departs);// FreemarkerUtil.createFile("exportMyExcel.xls",// docFileName,rootMap, request, response,// FreemarkerUtil.EXCEL_FILE);FreemarkerUtil.createFile("ftl2doc.ftl", docFileName, rootMap, request, response, FreemarkerUtil.WORD_FILE);} catch (Exception e) {e.printStackTrace();}
}

2.2、entity

实体就不扔出来了，详细说一下这个地方：

jeecgDemoExcel = this.jeecgDemoExcelService.getEntity(JeecgDemoExcelEntity.class, jeecgDemoExcel.getId());
List<Map<String, Object>> departs = this.systemService.findForJdbc("select id,departname from t_s_depart");
String docFileName = "word-模板导出测试.doc";
Map<String, Object> rootMap = new HashMap<String, Object>();
rootMap.put("info", jeecgDemoExcel);
rootMap.put("departs", departs);

jeecgDemoExcel 为 List<实体>，departs 为 List<Map<String, Object>>，怎么用？ftl 语法了解一下？

2.3、工具类 FreemarkerUtil

public class FreemarkerUtil {private static final Object LOCK = new Object();/*** word文件*/public static final int WORD_FILE = 1;/*** excel文件*/public static final int EXCEL_FILE = 2;private static Configuration cfg;private static FreemarkerUtil ftl ;private FreemarkerUtil(String templateFolder) throws IOException {cfg = new Configuration();cfg.setDirectoryForTemplateLoading(new File(templateFolder));cfg.setObjectWrapper(new DefaultObjectWrapper());}private static void check(HttpServletRequest request) {if (ftl == null) {synchronized (LOCK) {try {ftl = new FreemarkerUtil(request.getServletContext().getRealPath("/")+"export/template");} catch (IOException e) {e.printStackTrace();}}}}/*** 创建 word 文档* 必须先设置response导出配置，然后解析模版，否则会出问题* @throws IOException */public static void createFile(String templateName,String docFileName, Map<String,Object> rootMap,HttpServletRequest request, HttpServletResponse response,int fileType) throws IOException {//      response.resetBuffer();//设置导出response.addHeader("Cache-Control","no-cache");response.setCharacterEncoding("UTF-8");if( WORD_FILE == fileType){response.setContentType("application/vnd.ms-word;charset=UTF-8");}else if(EXCEL_FILE == fileType){response.setContentType("application/octet-stream;charset=UTF-8");}else{response.setContentType("application/octet-stream");}String ua = request.getHeader("user-agent");ua = ua == null ? null : ua.toLowerCase();if(ua != null && (ua.indexOf("firefox") > 0 || ua.indexOf("safari")>0)){try {docFileName = new String(docFileName.getBytes(),"ISO8859-1");response.addHeader("Content-Disposition","attachment;filename=" + docFileName);} catch (Exception e) {}}else{try {docFileName = URLEncoder.encode(docFileName, "utf-8");response.addHeader("Content-Disposition","attachment;filename=" + docFileName);} catch (Exception e) {}}check(request);//解析模版Template temp = cfg.getTemplate(templateName, "UTF-8");PrintWriter write = response.getWriter();try {temp.process(rootMap, write);} catch (TemplateException e) {e.printStackTrace();}finally {if(write != null){write.flush();write.close();}}}
}