JAVA整合Freemarker生成靜態html過程解析
阿新 • • 發佈:2020-06-09
Springboot
1.引入Freemarker jar包
<dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-freemarker</artifactId> </dependency>
2.配置application.properties
### freemarker spring.freemarker.templateLoaderPath=classpath:/templates/ spring.freemarker.suffix=.ftl spring.freemarker.charset=UTF-8 spring.freemarker.request-context-attribute=request spring.freemarker.settings.number_format=0.##########
3.建立ftl檔案
在resource檔案下新增資料夾templates,在templates資料夾下存放ftl檔案,例如:
<!DOCTYPE html> <html> <head> <meta charset="utf-8"/> <title>FreeMarker</title> </head> <body> <h1>Simple project</h1> <h1>${key}</h1> </body> </html>
4.新建controller呼叫方法
@SuppressWarnings("unchecked") @RequestMapping(value="/test",method=RequestMethod.GET) public String test(Model model,HttpServletRequest request) { model.addAttribute("key","test project"); return "test"; }
5.生成html靜態檔案
使用工具類:
/** * @param modeName 模板名稱 * @param targetFileName 生成後的HTML名稱 * @param params 傳入模板的引數 * @Author: zy * @Date: 2020-6-4 09:39:47 * @Description:生成靜態頁面 */ public void createHtmlByMode(String modeName,String targetFileName,Map<String,Object> params) { Writer out = null; // 找到伺服器快取目錄,可以自己指定目錄 String folder = PropertisUtil.getApplicationProperties("healthReport.logs.urls") + targetFileName; // 通過匹配路徑格式拼接完整生成路徑 String outFile = folder; try { File file = new File(outFile); // 生成空HTML檔案 if (!file.exists()) { file.createNewFile(); } // 建立模版物件 Template template = cfg.getTemplate(modeName); // 設定輸出流 out = new OutputStreamWriter(new FileOutputStream(file),"UTF-8");// 設定編碼 UTF-8 // 模版資料插入引數,通過輸出流插入到HTML中 template.process(params,out); } catch (Exception e) { e.printStackTrace(); } finally { if (null != out) { try { out.flush(); out.close(); } catch (IOException e) { e.printStackTrace(); } } } }
修改controller中的方法:
@SuppressWarnings("unchecked") @RequestMapping(value="/test","test project"); //生成靜態檔案 Map param=new HashMap(); param.put("key","我是被生成的靜態檔案"); createHtmlByMode("test.ftl","test.html",param); return "test"; }
實現效果(我這裡預設儲存到d:/testlogs):
Springmvc(和springboot大致相同,此處只留下配置)
1.引入Freemarker jar包
<dependency> <groupId>org.springframework</groupId> <artifactId>spring-context-support</artifactId> <version>3.2.4.RELEASE</version> </dependency> <!-- https://mvnrepository.com/artifact/org.freemarker/freemarker --> <dependency> <groupId>org.freemarker</groupId> <artifactId>freemarker</artifactId> <version>2.3.25-incubating</version> </dependency>
2.springmvc配置
<!-- freemarker --> <bean id="freeMarkerConfigurer" class="org.springframework.web.servlet.view.freemarker.FreeMarkerConfigurer"> <property name="templateLoaderPath" value="/freemarker/ftl/"></property> <property name="defaultEncoding" value="utf-8" /> <property name="freemarkerSettings"> <props> <prop key="template_update_delay">1</prop> <prop key="locale">zh_CN</prop> <prop key="datetime_format">yyyy-MM-dd</prop><!-- 時間格式化 --> <prop key="date_format">yyyy-MM-dd</prop> <prop key="number_format">#.##</prop> </props> </property> </bean> <bean id="freeMarkerViewResolver" class="org.springframework.web.servlet.view.freemarker.FreeMarkerViewResolver"> <property name="cache" value="true" /> <property name="prefix" value="" /><!-- 上面已經配了,這裡就不用配啦 --> <property name="suffix" value=".ftl" /> <property name="contentType" value="text/html;charset=UTF-8" /> <property name="allowSessionOverride" value="true" /> <property name="allowRequestOverride" value="true" /> <property name="exposeSpringMacroHelpers" value="true" /> <property name="exposeRequestAttributes" value="true" /> <property name="exposeSessionAttributes" value="true" /> <property name="requestContextAttribute" value="request" /> </bean>
3.呼叫方式
/**返回模板資訊*/ @SuppressWarnings("unchecked") @RequestMapping(value="/test",method={RequestMethod.GET}) public ModelAndView test(HttpServletRequest request) { ModelAndView mv = new ModelAndView(); //設定引數 mv.addObject("key","測試freemarker"); //配置模板 mv.setViewName("test"); return mv; }
以上就是本文的全部內容,希望對大家的學習有所幫助,也希望大家多多支援我們。