Freemarker的配置与使用

1.在pro.xml配置文件中引入架包

<!--freemarker-->
  <dependency>
   <groupId>freemarker</groupId>
   <artifactId>freemarker</artifactId>
   <version>${freemarker-version}</version>
  </dependency>

2.Freemarker的配置

<?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans"  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:aop="http://www.springframework.org/schema/aop"  xmlns:tx="http://www.springframework.org/schema/tx" xmlns:jdbc="http://www.springframework.org/schema/jdbc"  xmlns:context="http://www.springframework.org/schema/context"  xsi:schemaLocation="      http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd      http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd      http://www.springframework.org/schema/jdbc http://www.springframework.org/schema/jdbc/spring-jdbc-3.0.xsd      http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.0.xsd      http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.0.xsd">

   <!-- 配置Freemarker -->    <bean id="staticPageService" class="cn.itcast.core.service.staticpage.StaticPageServiceImpl">      <property name="freeMarkerConfigurer">       <bean class="org.springframework.web.servlet.view.freemarker.FreeMarkerConfigurer">        <property name="templateLoaderPath" value="/WEB-INF/ftl/"/>        <property name="defaultEncoding" value="UTF-8"/>       </bean>      </property>    </bean>     </beans>

3.Freemarker静态化页面

package cn.itcast.core.service.staticpage;

import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStreamWriter;
import java.io.Writer;
import java.util.Map;

import javax.servlet.ServletContext;

import org.springframework.web.context.ServletContextAware;
import org.springframework.web.servlet.view.freemarker.FreeMarkerConfigurer;

import freemarker.template.Configuration;
import freemarker.template.Template;


/**
 * 生成静态页实现类
 * @author lx
 *
 */
public class StaticPageServiceImpl implements StaticPageService,ServletContextAware{

    private Configuration conf;
    
    public void setFreeMarkerConfigurer(FreeMarkerConfigurer freeMarkerConfigurer) {
        this.conf = freeMarkerConfigurer.getConfiguration();
    }


    //静态化方法
    public void productIndex(Map<String,Object> root,Integer id){
        //String dir = "C:Userslxworkspaceabasport12";
        //设置模板的目录
        //conf.setDirectoryForTemplateLoading(dir);
        
        //输出流   从内存写出去  磁盘上
        Writer out = null;
        try {
            //读进来  UTF-8  内存中
            Template template = conf.getTemplate("productDetail.html");
            //获取Html的路径
            String path = getPath("/html/product/" + id +  ".html");//278.html
            
            File f = new File(path);
            File parentFile = f.getParentFile();
            if(!parentFile.exists()){
                parentFile.mkdirs();
            }
            //输出流
            out = new OutputStreamWriter(new FileOutputStream(f), "UTF-8");
            //处理模板
            template.process(root, out);
        } catch (Exception e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }finally{
            if(out != null){
                try {
                    out.close();
                } catch (IOException e) {
                    // TODO Auto-generated catch block
                    e.printStackTrace();
                }
            }
        }
    }
    //获取路径
    public String getPath(String name){
        return servletContext.getRealPath(name);
    }

    private ServletContext servletContext;

    @Override
    public void setServletContext(ServletContext servletContext) {
        this.servletContext = servletContext;
    }
}