/**   * freemark入門案例   * freemark三要素:   * 1.freemark API   * 2.數(shù)據(jù)   * 3.模板文件:ftl文件   * @throws Exception    */  @Test  public void test1() throws Exception{   //創(chuàng)建freemarker核心配置對(duì)象,指定freemarker   Configuration cf = new Configuration(Configuration.getVersion());   //指定服務(wù)器模板文件所在路徑   cf.setDirectoryForTemplateLoading(new File("F://template"));   //指定模板文件編碼   cf.setDefaultEncoding("utf-8");   //從模板文件路徑下面獲取模板文件對(duì)象   Template template = cf.getTemplate("hello.ftl");   //創(chuàng)建map對(duì)象,封裝模板數(shù)據(jù)   Map<String,Object> maps = new HashMap<String,Object>();   maps.put("hello", "freemarker入門案例");   //創(chuàng)建一個(gè)輸出對(duì)象,把數(shù)據(jù)輸出daoHtml頁面   Writer out = new FileWriter(new File("F://template//out//quickstart.html"));   //生成Html頁面   template.process(maps, out);   //關(guān)閉資源   out.close();  }  /**   * freemarker模板語法處理特殊數(shù)據(jù)格式    * 例如:$0.2,20%   * 模板語法:$0.2:${price?string.currency}   * 20%:${price?string.percent}   * @throws Exception    */  @Test  public void test2() throws Exception{   //創(chuàng)建freemark核心配置對(duì)象,指定freemark版本   Configuration cf = new Configuration(Configuration.getVersion());   //指定模板文件所在路徑   cf.setDirectoryForTemplateLoading(new File("F://template"));   //設(shè)置模板編碼   cf.setDefaultEncoding("utf-8");   //從模板文件路徑下面取模板文件對(duì)象   Template template = cf.getTemplate("num.ftl");   //創(chuàng)建map對(duì)象,封裝模板數(shù)據(jù)   Map<String,Object> maps = new HashMap<>();   maps.put("price", 0.2);   //創(chuàng)建輸出對(duì)象,把數(shù)據(jù)輸出到Html頁面   Writer out = new FileWriter(new File("F://template//out//price.html"));   //生成Html頁面   template.process(maps, out);   //關(guān)閉資源   out.close();  }  /**   * 使用模板語法處理null值   * 模板文件處理語法:   * 1.?   * 語法:${username?default("張三")}   * 2.!   * 語法:   * ${username!}   * ${username!"默認(rèn)值"}   * 3.if   * 語法:   * <#if username??>   * ${username}   * </#if>   * @throws Exception    */  @Test  public void test3() throws Exception{   //創(chuàng)建freemark核心配置對(duì)象,指定freemarker版本   Configuration cf = new Configuration(Configuration.getVersion());   //指定模板文件所在路徑   cf.setDirectoryForTemplateLoading(new File("F://template"));   //設(shè)置模板編碼   cf.setDefaultEncoding("utf-8");   //從模板文件路徑下獲取模板文件對(duì)象   Template template = cf.getTemplate("null.ftl");   //創(chuàng)建map對(duì)象,封裝模板數(shù)據(jù)   Map<String,Object> maps = new HashMap<>();   maps.put("username", null);   //創(chuàng)建輸出對(duì)象,把數(shù)據(jù)輸出到html頁面   Writer out = new FileWriter(new File("F://template//out//username.html"));   //生成html頁面   template.process(maps, out);   //關(guān)閉資源   out.close();  }  /**   * 使用模板語法處理pojo數(shù)據(jù)   * el表達(dá)式獲取數(shù)據(jù):   * model.addAttribute("p",person);   * ${p.username}   * ${p.address}   * 模板語法獲取pojo數(shù)據(jù)   * model.addAttribute("p",person);   * ${p.username}   * ${p.address}   * @throws Exception    */  @Test  public void test4() throws Exception{   //創(chuàng)建freemark核心配置對(duì)象,指定freemarker版本   Configuration cf = new Configuration(Configuration.getVersion());   //指定模板文件所在路徑   cf.setDirectoryForTemplateLoading(new File("F://template"));   //設(shè)置模板編碼   cf.setDefaultEncoding("utf-8");   //從模板文件路徑下獲取模板文件對(duì)象   Template template = cf.getTemplate("person.ftl");   //創(chuàng)建map對(duì)象,封裝模板數(shù)據(jù)   Map<String,Object> maps = new HashMap<>();   //創(chuàng)建person對(duì)象   Person person = new Person();   person.setUsername("張三");   person.setAge(22);   maps.put("p", person);   //創(chuàng)建輸出對(duì)象,把數(shù)據(jù)輸出到html頁面   Writer out = new FileWriter(new File("F://template//out//person.html"));   //生成html頁面   template.process(maps, out);   //關(guān)閉資源   out.close();  }  /**   * 使用模板語法處理集合數(shù)據(jù)   * el表達(dá)式獲取數(shù)據(jù):   * model.addAttribute("pList",pList);   * <c:foreach item="pList" var="p">   *  ${p.username}   *  ${p.age}   * </c:foreach>   * 模板語法獲取list數(shù)據(jù)   * model.addAttribute("pList",pList);   * <#list pList as p>   *  ${p.username}   *  ${p.age}   * </#list>   * 角標(biāo)語法:${別名_index}   * @throws Exception    */  @Test  public void test5() throws Exception{   //創(chuàng)建freemark核心配置對(duì)象,指定freemarker版本   Configuration cf = new Configuration(Configuration.getVersion());   //指定模板文件所在路徑   cf.setDirectoryForTemplateLoading(new File("F://template"));   //設(shè)置模板編碼   cf.setDefaultEncoding("utf-8");   //從模板文件路徑下獲取模板文件對(duì)象   Template template = cf.getTemplate("list.ftl");   //創(chuàng)建map對(duì)象,封裝模板數(shù)據(jù)   Map<String,Object> maps = new HashMap<>();   //創(chuàng)建list集合   List<Person> pList = new ArrayList<>();   //創(chuàng)建person對(duì)象   Person person1 = new Person();   person1.setUsername("張三");   person1.setAge(22);   //創(chuàng)建person對(duì)象   Person person2 = new Person();   person2.setUsername("李四");   person2.setAge(24);   pList.add(person1);   pList.add(person2);   maps.put("pList", pList);   //創(chuàng)建輸出對(duì)象,把數(shù)據(jù)輸出到html頁面   Writer out = new FileWriter(new File("F://template//out//list.html"));   //生成html頁面   template.process(maps, out);   //關(guān)閉資源   out.close();  }  /**   * 使用模板語法處理時(shí)間類型數(shù)據(jù)   * 獲取數(shù)據(jù)日期:${today?date}   * 獲取數(shù)據(jù)時(shí)間:${today?time}   * 獲取數(shù)據(jù)日期時(shí)間:${today?datetime}   * 獲取數(shù)據(jù)日期時(shí)間格式化:${today?string('yyyy-MM-dd')}   * @throws Exception    */  @Test  public void test6() throws Exception{   //創(chuàng)建freemark核心配置對(duì)象,指定freemarker版本   Configuration cf = new Configuration(Configuration.getVersion());   //指定模板文件所在路徑   cf.setDirectoryForTemplateLoading(new File("F://template"));   //設(shè)置模板編碼   cf.setDefaultEncoding("utf-8");   //從模板文件路徑下獲取模板文件對(duì)象   Template template = cf.getTemplate("date.ftl");   //創(chuàng)建map對(duì)象,封裝模板數(shù)據(jù)   Map<String,Object> maps = new HashMap<>();   maps.put("today", new Date());   //創(chuàng)建輸出對(duì)象,把數(shù)據(jù)輸出到html頁面   Writer out = new FileWriter(new File("F://template//out//date.html"));   //生成html頁面   template.process(maps, out);   //關(guān)閉資源   out.close();  }

<!-- freemarker交給spring管理 --> <!-- 使用spring提供模板管理配置對(duì)象 --> <bean class="org.springframework.web.servlet.view.freemarker.FreeMarkerConfigurer">  <!-- 模板路徑 -->  <property name="templateLoaderPath" value="/WEB-INF/fm/" />  <!-- 模板編碼 -->  <property name="defaultEncoding" value="utf-8" /> </bean>

<!-- 加載springmvc -->  <servlet>  <servlet-name>springmvc</servlet-name>  <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>  <init-param>   <param-name>contextConfigLocation</param-name>   <param-value>classpath:springmvc.xml,classpath:applicationContext-*.xml</param-value>  </init-param>  <load-on-startup>1</load-on-startup>  </servlet>