通过SpringMVC集成freemark模板生成页面

1、maven依赖

<properties>        <checkstyle.skip>true</checkstyle.skip>        <checkstyle.failOnViolation>false</checkstyle.failOnViolation>        <findbugs.failOnError>true</findbugs.failOnError>        <pmd.failOnViolation>false</pmd.failOnViolation>        <spring.version>4.1.9.RELEASE</spring.version>        <mybatis.version>3.3.0</mybatis.version>        <junit.version>4.11</junit.version>    </properties>    <dependencies>        <!--SSM框架依赖包-->        <dependency>            <groupId>org.springframework</groupId>            <artifactId>spring-context</artifactId>            <version>${spring.version}</version>        </dependency>        <dependency>            <groupId>org.springframework</groupId>            <artifactId>spring-context-support</artifactId>            <version>${spring.version}</version>        </dependency>        <dependency>            <groupId>org.springframework</groupId>            <artifactId>spring-webmvc</artifactId>            <version>${spring.version}</version>        </dependency>        <dependency>            <groupId>org.springframework</groupId>            <artifactId>spring-tx</artifactId>            <version>${spring.version}</version>        </dependency>        <dependency>            <groupId>org.springframework</groupId>            <artifactId>spring-jdbc</artifactId>            <version>${spring.version}</version>        </dependency>        <dependency>            <groupId>org.springframework</groupId>            <artifactId>spring-aop</artifactId>            <version>${spring.version}</version>        </dependency>        <dependency>            <groupId>org.aspectj</groupId>            <artifactId>aspectjrt</artifactId>            <version>1.6.10</version>        </dependency>        <dependency>            <groupId>org.aspectj</groupId>            <artifactId>aspectjweaver</artifactId>            <version>1.6.10</version>        </dependency>        <dependency>            <groupId>org.mybatis</groupId>            <artifactId>mybatis</artifactId>            <version>${mybatis.version}</version>        </dependency>        <dependency>            <groupId>org.mybatis</groupId>            <artifactId>mybatis-spring</artifactId>            <version>1.2.3</version>        </dependency>        <dependency>            <groupId>log4j</groupId>            <artifactId>log4j</artifactId>            <version>1.2.17</version>        </dependency>        <dependency>            <groupId>org.slf4j</groupId>            <artifactId>slf4j-log4j12</artifactId>            <version>1.7.2</version>        </dependency>        <!--数据源包-->        <dependency>            <groupId>commons-dbcp</groupId>            <artifactId>commons-dbcp</artifactId>            <version>1.4</version>        </dependency>        <dependency>            <groupId>com.alibaba</groupId>            <artifactId>fastjson</artifactId>            <version>1.2.24</version>        </dependency>        <dependency>            <groupId>javax.servlet</groupId>            <artifactId>servlet-api</artifactId>            <version>2.5</version>            <scope>provided</scope>        </dependency>        <dependency>            <groupId>junit</groupId>            <artifactId>junit</artifactId>            <version>${junit.version}</version>            <scope>test</scope>        </dependency>        <dependency>            <groupId>org.springframework</groupId>            <artifactId>spring-test</artifactId>            <version>${spring.version}</version>        </dependency>        <dependency>            <groupId>mysql</groupId>            <artifactId>mysql-connector-java</artifactId>            <version>5.1.9</version>        </dependency>        <dependency>            <groupId>javax.servlet</groupId>            <artifactId>jstl</artifactId>            <version>1.2</version>        </dependency>        <dependency>            <groupId>taglibs</groupId>            <artifactId>standard</artifactId>            <version>1.1.2</version>        </dependency>        <dependency>            <groupId>org.codehaus.jackson</groupId>            <artifactId>jackson-mapper-asl</artifactId>            <version>1.9.13</version>        </dependency>        <dependency>            <groupId>org.codehaus.jackson</groupId>            <artifactId>jackson-core-asl</artifactId>            <version>1.9.13</version>        </dependency>        <dependency>            <groupId>org.bouncycastle</groupId>            <artifactId>bcprov-jdk16</artifactId>            <version>1.46</version>        </dependency>        <dependency>            <groupId>org.apache.directory.studio</groupId>            <artifactId>org.apache.commons.codec</artifactId>            <version>1.8</version>        </dependency>        <dependency>            <groupId>org.freemarker</groupId>            <artifactId>freemarker</artifactId>            <version>2.3.19</version>        </dependency>

2、模板定义

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8" /><title>找回密码-邮件</title></head><body style="font-family:Arial, Helvetica, sans-serif,'宋体';font-size:12px;" leftmargin="0" topmargin="0"><table width="653" border="0" cellspacing="0" cellpadding="0" style="border:1px #e2e2e2 solid; color:#444341; margin:0 auto;">  <tr>    <td colspan="3" height="48" align="center" style="border-bottom:2px solid #fcbb12; font-size:16px; padding-top:30px;"><strong>LUCKY业务管理平台密码重置提醒</strong></td>  </tr>  <tr>    <td width="46"> </td>    <td width="560" style="padding-top:15px; line-height:24px; padding-bottom:20px;">    <p>尊敬的 <b>${employeeName}</b> 先生/女士</p>    <p>您好！</p>    <p>您已经申请了重置登录密码，请在24小时内更换您的密码，如果不做任何操作，系统将保留原密码。 <br />    <a href="${projectUrl}/employee/changeByToken.do_?token=${token}" style="color:#0953cd;" target="_blank">点击此处</a> 立即更换登录密码。</p>    <p>如果上述文字点击无效，请把下面网页地址复制到浏览器地址栏中打开： <br />    <a href="${projectUrl}/employee/changeByToken.do_?token=${token}" style="color:#0953cd;" target="_blank">${projectUrl}/employee/changeByToken.do_?token=${token}</a></p>    <p>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。</p><br />    <p align="right">LUCKY</p>    </td>    <td width="47"> </td>  </tr></table></body></html>

3、spring-mvc.xml配置

<!-- 模板参数配置 -->    <bean id="freemarker.mailAndMessageConfig" class="org.springframework.web.servlet.view.freemarker.FreeMarkerConfigurer">        <property name="templateLoaderPath">            <value>/jsp/template/freemarker/</value>        </property>        <property name="freemarkerSettings">            <props>                <prop key="template_update_delay">0</prop>                <prop key="default_encoding">utf-8</prop>                <prop key="locale">zh_CN</prop>                <prop key="classic_compatible">true</prop>            </props>        </property>    </bean>

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 <br> * @version V1.0  2017/7/15 17:01  by 石冬冬-Seig Heil（[e-mail]）创建 */@SuppressWarnings("rawtypes")@Componentpublic class FreemarkGeneralFactory implements ApplicationListener {    private Map<String, Configuration> configurationMap = new HashMap<String, Configuration>();    /**     * 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<String, FreeMarkerConfigurer> configMap = context.getBeansOfType(FreeMarkerConfigurer.class);            Set<String> 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<String, ?> 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<br/> * @version V1.0  2017/7/15 17:06  by 石冬冬([e-mail]) - 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<String,String> params = new HashMap<String, String>(){{                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"%><!DOCTYPE html><html lang="en"><head>  <meta charset="utf-8" />  <title>登陆页</title>  <meta name="keywords" content="服务治理,prism" />  <meta name="description" content="服务治理" />  <meta name="viewport" content="width=device-width, initial-scale=1.0" /></head><body class="login-layout">${html}</body></html>