摘要：
ftl语法呢？2.3.工具类FreemarkUtilpublicclassFreemarkUtil｛privatestaticfinalObjectLOCK=newObject（）；/**word file*/publicstaticfinalWORD_file=1；/**excel file*/publicstaticfinalEXCEL_file=2；privatestaticConfigurationcfg；privatestaticFreemarkUtilthrowsIOException｛cfg=newConfiguration（）；cfg.setDirectoryForTemplateLoading；cfg.g.setObjectWrapper；｝privatestaticvoidcheck｛if｛synchronized｛try｛ftl＝newFreemarkerUtil；｝捕获｛e.printStackTrace（）；｝｝｝｝/***要创建word文档，必须首先设置响应导出配置，然后解析模板。否则，将出现问题*@sthrowsIOException*/publicstaticvoidcreateFilethrowsIOException｛//response.resetBuffer（）；//设置导出response.addHeader；response.setCharacterEncoding；if｛response.setContentType；｝elseif｛response.setContentType；｝否则｛response.setContentType；｝Stringua=请求。getHeader；ua=ua==空？
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(); } } } }
2.4、ftl 模板
https://files.cnblogs.com/files/niceyoo/ftl2doc.rar
至于，ftl 如何生成，以及如何写，可自定查询，后面也会单独文章补充。
博客地址：http://www.cnblogs.com/niceyoo
18年专科毕业后，期间一度迷茫，最近我创建了一个公众号用来记录自己的成长。
