Spring与freemarker集成利用freemarker静态化页面(转载)

需求：

web内容系统，需要静态化页面，管理系统仍然基于InternalResourceViewResolver渲染jsp页面，而非采用FreeMarkerViewResolver。也就是说只利用freemarker静态化页面

环境：

<!-- apache common start -->
<dependency>
  <groupId>org.apache.commons</groupId>
  <artifactId>commons-io</artifactId>
  <version>1.3.2</version>
</dependency>
<!-- apache common end -->

<dependency>
  <groupId>org.codehaus.jackson</groupId>
  <artifactId>jackson-mapper-lgpl</artifactId>
  <version>1.9.13</version>
</dependency>
<dependency>
  <groupId>org.springframework</groupId>
  <artifactId>spring-web</artifactId>
  <version>3.1.0.RELEASE</version>
</dependency>
<dependency>
  <groupId>org.springframework</groupId>
  <artifactId>spring-webmvc</artifactId>
  <version>3.1.0.RELEASE</version>
</dependency>
<dependency>
  <groupId>javax.servlet</groupId>
  <artifactId>jstl</artifactId>
  <version>1.2</version>
</dependency>
<dependency>
  <groupId>javax.servlet</groupId>
  <artifactId>jsp-api</artifactId>
  <version>2.0</version>
  <scope>provided</scope>
</dependency>
<dependency>
  <groupId>javax.servlet</groupId>
  <artifactId>servlet-api</artifactId>
  <version>2.5</version>
  <scope>provided</scope>
</dependency>
<dependency>
  <groupId>com.alibaba</groupId>
  <artifactId>fastjson</artifactId>
  <version>1.1.36</version>
</dependency>
<!-- dao start -->
<dependency>
  <groupId>commons-dbutils</groupId>
  <artifactId>commons-dbutils</artifactId>
  <version>1.5</version>
</dependency>
<dependency>
  <groupId>commons-pool</groupId>
  <artifactId>commons-pool</artifactId>
  <version>1.6</version>
</dependency>
<dependency>
  <groupId>commons-dbcp</groupId>
  <artifactId>commons-dbcp</artifactId>
  <version>20030825.184428</version>
</dependency>
<dependency>
  <groupId>mysql</groupId>
  <artifactId>mysql-connector-java</artifactId>
  <version>5.1.28</version>
</dependency>
<!-- dao end -->

<!-- FreeMarker start -->
<dependency>
  <groupId>org.freemarker</groupId>
  <artifactId>freemarker</artifactId>
  <version>2.3.20</version>
</dependency>
<dependency>
  <groupId>commons-logging</groupId>
  <artifactId>commons-logging</artifactId>
  <version>1.1.1</version>
</dependency>

web.xml的配置：

<servlet>
  <servlet-name>spring</servlet-name>
  <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
  <init-param>
    <param-name>contextConfigLocation</param-name>
    <param-value>/WEB-INF/spring-*.xml</param-value>
  </init-param>
  <load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
  <servlet-name>spring</servlet-name>
  <url-pattern>/</url-pattern>
</servlet-mapping>
<listener>
  <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<context-param>
  <param-name>contextConfigLocation</param-name>
  <param-value>/WEB-INF/spring-*.xml</param-value>
</context-param>
<listener>
  <listener-class>
    org.springframework.web.util.IntrospectorCleanupListener
  </listener-class>
</listener>
<filter>
  <filter-name>encodingFilter</filter-name>
  <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
  <init-param>
    <param-name>encoding</param-name>
    <param-value>UTF-8</param-value>
  </init-param>
  <init-param>
    <param-name>forceEncoding</param-name>
    <param-value>true</param-value>
  </init-param>
</filter>
<filter-mapping>
  <filter-name>encodingFilter</filter-name>
  <url-pattern>/*</url-pattern>
</filter-mapping>

spring-ui.xml配置：

<mvc:resources mapping="/static/**" location="/static/" />
<mvc:annotation-driven>
  <mvc:message-converters>
    <bean class="org.springframework.http.converter.StringHttpMessageConverter" />
    <bean
      class="org.springframework.http.converter.ResourceHttpMessageConverter" />
    <bean
      class="org.springframework.http.converter.json.MappingJacksonHttpMessageConverter">

      <property name="supportedMediaTypes" value="application/json" />
    </bean>
  </mvc:message-converters>
</mvc:annotation-driven>
<context:component-scan base-package="com.someabcd.csr" />
<bean id="propertyConfigure"
  class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer" />

<!--配置Freemarker -->
<bean id="freemarkerConfigurer"
  class="org.springframework.web.servlet.view.freemarker.FreeMarkerConfigurer">
  <property name="templateLoaderPath" value="/WEB-INF/ftl/" />
  <property name="freemarkerSettings">
    <props>
      <prop key="template_update_delay">10</prop>
      <prop key="defaultEncoding">UTF-8</prop>
    </props>
  </property>
</bean>

<bean
  class="org.springframework.web.servlet.view.InternalResourceViewResolver"
  p:prefix="/WEB-INF/jsp/" p:suffix=".jsp" />

此时freemarkerConfigurer已经指定，并指定了templateLoaderPath，同时指定了编码

/WEB-INF/ftl/file.ftl：

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">  
<html>  
  <head>  
    <title>${article.title}</title>  
    <meta http-equiv="pragma" content="no-cache">  
    <meta http-equiv="cache-control" content="no-cache">  
    <meta http-equiv="expires" content="0">      
    <meta http-equiv="keywords" content="keyword1,keyword2,keyword3">  
    <meta http-equiv="description" content="This is my page">  
    <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />  
  </head>  
    
  <body>  
  <h2>${article.title}</h2>
  <hr/>
  <pre>
  ${article.content}
  </pre>
  </body>
  </html>

我们构建vo类：

public class Article  implements Serializable{
  private static final long serialVersionUID = 554206256994693476L;
  private String title;
  private String content;

  public String getTitle() {
    return title;
  }

  public void setTitle(String title) {
    this.title = title;
  }

  public String getContent() {
    return content;
  }

  public void setContent(String content) {
    this.content = content;
  }
}

构建实际生成html的操作类：HtmlService.java 为测试类

@Service("com.someabcd.csr.service.htmlService")
public class HtmlService {
  @Autowired
  private FreeMarkerConfigurer freeMarkerConfigurer;

  public void all(String msg) throws Exception {
    Map<String, Article> rootMap = new HashMap<String, Article>();
    process("file.ftl", rootMap);
  }

  public void process(String templateName, Map<String, Article> rootMap)
      throws Exception {
    Configuration configuration = freeMarkerConfigurer.getConfiguration();
    Template template = configuration.getTemplate(templateName);
    File file = new File("d:/file.html");
    Article article = new Article();
    article.setTitle("关于小网客");
    article.setContent("解决方案咨询<br>大数据处理<br>系统架构<br>企业信息化咨询<br>Email:[e-mail]<br>来自北京");
    rootMap.put("article", article);
    Writer out = new OutputStreamWriter(new FileOutputStream(file), "UTF-8");
    template.process(rootMap, out);
    IOUtils.closeQuietly(out);

  }

}

构建控制层的访问：HtmlController.java

@Controller("com.someabcd.csr.controller.htmlController")
@RequestMapping("html")
public class HtmlController {
  @Autowired
  private HtmlService htmlService;

  @RequestMapping(value = "/create")
  @ResponseBody
  public ReturnBase all(HttpServletRequest request,
      HttpServletResponse response) {
    ReturnBase returnStatus = new ReturnBase();
    String msg = request.getParameter("msg");
    System.out.println("*********msg***" + msg);
    try {
      this.htmlService.all(msg);
      returnStatus.setSuccess(true);
      returnStatus.setMsg("成功!");
    } catch (Exception e) {
      e.printStackTrace();
      returnStatus.setSuccess(false);
      returnStatus.setMsg(e.getMessage());
    }
    return returnStatus;

  }
}

这个时候我们访问html/create即可生成。

其他类：ReturnBase

public class ReturnBase {
  private boolean success = false;
  private String msg;

  public boolean isSuccess() {
    return success;
  }

  public void setSuccess(boolean success) {
    this.success = success;
  }

  public String getMsg() {
    return msg;
  }

  public void setMsg(String msg) {
    this.msg = msg;
  }
 
}

最终直接通过url即可访问生成页面的，结果保存为d:/file.html，实际应用中根据数据id等规则生成相应的文件目录结构即可

原文地址：http://www.tuicool.com/articles/q6byYf