通过SpringMVC集成freemark模板生成页面

1、maven依赖

        true
        false
        true
        false
        4.1.9.RELEASE
        3.3.0
        4.11
    

    
        
        
            org.springframework
            spring-context
            ${spring.version}
        
        
            org.springframework
            spring-context-support
            ${spring.version}
        
        
            org.springframework
            spring-webmvc
            ${spring.version}
        
        
            org.springframework
            spring-tx
            ${spring.version}
        
        
            org.springframework
            spring-jdbc
            ${spring.version}
        
        
            org.springframework
            spring-aop
            ${spring.version}
        
        
            org.aspectj
            aspectjrt
            1.6.10
        
        
            org.aspectj
            aspectjweaver
            1.6.10
        
        
            org.mybatis
            mybatis
            ${mybatis.version}
        
        
            org.mybatis
            mybatis-spring
            1.2.3
        
        
            log4j
            log4j
            1.2.17
        
        
            org.slf4j
            slf4j-log4j12
            1.7.2
        
        
        
            commons-dbcp
            commons-dbcp
            1.4
        
        
            com.alibaba
            fastjson
            1.2.24
        
        
            javax.servlet
            servlet-api
            2.5
            provided
        
        
            junit
            junit
            ${junit.version}
            test
        

        
            org.springframework
            spring-test
            ${spring.version}
        
        
            mysql
            mysql-connector-java
            5.1.9
        

        
            javax.servlet
            jstl
            1.2
        
        
            taglibs
            standard
            1.1.2
        

        
            org.codehaus.jackson
            jackson-mapper-asl
            1.9.13
        
        
            org.codehaus.jackson
            jackson-core-asl
            1.9.13
        
        
            org.bouncycastle
            bcprov-jdk16
            1.46
        
        
            org.apache.directory.studio
            org.apache.commons.codec
            1.8
        

        
            org.freemarker
            freemarker
            2.3.19
        

2、模板定义

  

    
LUCKY业务管理平台密码重置提醒
  
  

    
 
    

    
尊敬的 ${employeeName} 先生/女士
    
您好！
    
您已经申请了重置登录密码，请在24小时内更换您的密码，如果不做任何操作，系统将保留原密码。 

    点击此处 立即更换登录密码。
    
如果上述文字点击无效，请把下面网页地址复制到浏览器地址栏中打开： 

    ${projectUrl}/employee/changeByToken.do_?token=${token}
    
如有任何疑问或建议，欢迎随时与我们联系。感谢您使用LUCKY业务管理平台。

    
LUCKY


    
    
 
  

3、spring-mvc.xml配置

    
        
            /jsp/template/freemarker/
        
        
            
                0
                utf-8
                zh_CN
                true
            
        
    

4、定义一个类实现ApplicationListener接口，加载freemark配置

package com.ucar.common.freemark;

import freemarker.template.Configuration;
import freemarker.template.Template;
import org.springframework.context.ApplicationEvent;
import org.springframework.context.ApplicationListener;
import org.springframework.context.event.ContextRefreshedEvent;
import org.springframework.stereotype.Component;
import org.springframework.ui.freemarker.FreeMarkerTemplateUtils;
import org.springframework.web.context.WebApplicationContext;
import org.springframework.web.servlet.view.freemarker.FreeMarkerConfigurer;

import java.util.HashMap;
import java.util.Map;
import java.util.Set;

/**
 * Description:freemark模板生成html工厂类 

 * @version V1.0  2017/7/15 17:01  by 石冬冬-Seig Heil（[email protected]）创建
 */
@SuppressWarnings("rawtypes")
@Component
public class FreemarkGeneralFactory implements ApplicationListener {
    private Map configurationMap = new HashMap();

    /**
     * 监听容器启动，预加载模板参数对象
     */

    @Override
    public void onApplicationEvent(ApplicationEvent event) {
        if (configurationMap.size() == 0 && event instanceof ContextRefreshedEvent) {
            WebApplicationContext context = (WebApplicationContext) ((ContextRefreshedEvent) event).getApplicationContext();
            Map configMap = context.getBeansOfType(FreeMarkerConfigurer.class);
            Set mapSet = configMap.keySet();
            for (String key : mapSet) {
                Configuration configuration = configMap.get(key).getConfiguration();
                configurationMap.put(key, configuration);
            }
        }
    }

    /**
     * 通过freemark把模板转换HTML字符串
     * @param beanId 参数Bean的XML配置ID
     * @param templateName   模板文件名（含后缀）
     * @param params   页面显示使用的组合Map
     * @return String
     * @throws Exception 异常
     */
    public String generalHtml(String beanId, String templateName, Map params) throws Exception {
        Configuration configuration = configurationMap.get(beanId);
        Template template = configuration.getTemplate(templateName);
        return FreeMarkerTemplateUtils.processTemplateIntoString(template, params);
    }
}

5、Controller定义

package com.ucar.common.controller;

import com.ucar.common.freemark.FreemarkGeneralFactory;
import com.ucar.passportmanager.controller.PlatformInfoController;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;

import java.util.HashMap;
import java.util.Map;

/**
 * Description: freemark生成页面Controller

 * @version V1.0  2017/7/15 17:06  by 石冬冬([email protected]) - Heil Hitler
 */
@Controller
@RequestMapping("freemark")
public class FreemarkGeneralController {
    private final Logger logger = LoggerFactory.getLogger(PlatformInfoController.class);
    private final String PAGE_PREFIX = "/template/freemarker/";
    @Autowired
    private FreemarkGeneralFactory freemarkGeneralFactory;

    /**
     * 生成
     * @return
     */
    @RequestMapping("/general")
    public String list(Model model){
        try {
            Map params = new HashMap(){{
                this.put("employeeName","秋夜无霜");
                this.put("projectUrl","ssm");
                this.put("token","秋夜无霜");
            }};
            String html = this.freemarkGeneralFactory.generalHtml("freemarker.mailAndMessageConfig","getPasswordEmail.ftl",params);
            //logger.info("html={}",html);
            model.addAttribute("html",html);
        } catch (Exception e) {
            logger.error("生成页面异常",e);
        }
        return PAGE_PREFIX.concat("general");
    }
}

6、输出general.jsp定义

<%@ page contentType="text/html; charset=UTF-8" language="java" pageEncoding="UTF-8"%>



  
  
  
  
  



${html}