Freemarker整合Spring

布满荆棘的人生 2022-05-16 09:24 229阅读 0赞

### 添加jar包 ###

<dependency>
        <groupId>org.freemarker</groupId>
        <artifactId>freemarker</artifactId>
    </dependency>

### 配置文件 ###

freeMarkerConfigurer

<bean id="freeMarkerConfigurer" class="org.springframework.web.servlet.view.freemarker.FreeMarkerConfigurer">
        <property name="templateLoaderPath" value="/WEB-INF/ftl/"/>
        <property name="defaultEncoding" value="utf-8"></property>
    </bean>

### 加载配置文件 ###

Web.xml加载springmvc.xml

<servlet>
        <servlet-name>taotao-item-web</servlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
        
        <init-param>
            <param-name>contextConfigLocation</param-name>
            <param-value>classpath:spring/springmvc*.xml</param-value>
        </init-param>
        <load-on-startup>1</load-on-startup>
    </servlet>

### Controller ###

业务逻辑：  
1、从spring容器中获得FreeMarkerConfigurer对象  
2、从FreeMarkerConfigurer对象中获得Configuration对象  
3、使用Configuration对象获得Template对象  
4、创建数据集  
5、创建输出文件的Writer对象  
6、调用模板对象的process方法，生成文件  
7、关闭流

@Controller
    public class HtmlGenController { 
    
        @Autowired
        private FreeMarkerConfigurer freeMarkerConfigurer;
    
        @RequestMapping("/genhtml")
        @ResponseBody
        public String genHtml() throws Exception {
            //生成静态页面
            Configuration configuration = freeMarkerConfigurer.getConfiguration();
            Template template = configuration.getTemplate("hello.ftl");
            Map data = new HashMap<>();
            data.put("hello", "spring freemarker test");
            Writer out = new FileWriter(new File("D:/temp/javaee28/out/test.html"));
            template.process(data, out);
            out.close();
            //返回结果
            return "OK";
        }
    }