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 程式師世界 >> 編程語言 >> JAVA編程 >> 關於JAVA >> 基於Java的Spring框架來操作FreeMarker模板的示例

基於Java的Spring框架來操作FreeMarker模板的示例

編輯:關於JAVA

基於Java的Spring框架來操作FreeMarker模板的示例。本站提示廣大學習愛好者:(基於Java的Spring框架來操作FreeMarker模板的示例)文章只能為提供參考,不一定能成為您想要的結果。以下是基於Java的Spring框架來操作FreeMarker模板的示例正文


1、經由過程String來創立模版對象,並履行插值處置
 

import freemarker.template.Template; 

import java.io.OutputStreamWriter; 
import java.io.StringReader; 
import java.util.HashMap; 
import java.util.Map; 

/** 
* Freemarker最簡略的例子 
* 
* @author leizhimin 11-11-17 上午10:32 
*/ 
public class Test2 { 
    public static void main(String[] args) throws Exception{ 
        //創立一個模版對象 
        Template t = new Template(null, new StringReader("用戶名:${user};URL:  ${url};姓名:  ${name}"), null); 
        //創立插值的Map 
        Map map = new HashMap(); 
        map.put("user", "lavasoft"); 
        map.put("url", "http://www.百度.com/"); 
        map.put("name", "百度"); 
        //履行插值,並輸入到指定的輸入流中 
        t.process(map, new OutputStreamWriter(System.out)); 
    } 
}
 

履行後,掌握台輸入成果:

用戶名:lavasoft;

URL:  http://www.百度.com/;

姓名:  百度 
Process finished with exit code 0

 
 
2、經由過程文件來創立模版對象,並履行插值操作
 

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

import java.io.File; 
import java.io.OutputStreamWriter; 
import java.util.HashMap; 
import java.util.Map; 

/** 
* Freemarker最簡略的例子 
* 
* @author leizhimin 11-11-14 下晝2:44 
*/ 
public class Test { 
    private Configuration cfg;      //模版設置裝備擺設對象 

    public void init() throws Exception { 
        //初始化FreeMarker設置裝備擺設 
        //創立一個Configuration實例 
        cfg = new Configuration(); 
        //設置FreeMarker的模版文件夾地位 
        cfg.setDirectoryForTemplateLoading(new File("G:\\testprojects\\freemarkertest\\src")); 
    } 

    public void process() throws Exception { 
        //結構填湊數據的Map 
        Map map = new HashMap(); 
        map.put("user", "lavasoft"); 
        map.put("url", "http://www.百度.com/"); 
        map.put("name", "百度"); 
        //創立模版對象 
        Template t = cfg.getTemplate("test.ftl"); 
        //在模版上履行插值操作,並輸入到制訂的輸入流中 
        t.process(map, new OutputStreamWriter(System.out)); 
    } 

    public static void main(String[] args) throws Exception { 
        Test hf = new Test(); 
        hf.init(); 
        hf.process(); 
    } 
}

 
創立模版文件test.ftl

<html> 
<head> 
  <title>Welcome!</title> 
</head> 
<body> 
  <h1>Welcome ${user}!</h1> 
  <p>Our latest product: 
  <a href="${url}">${name}</a>! 
</body> 
</html> 
尊重的用戶你好: 
用戶名:${user}; 
URL:  ${url}; 
姓名:  ${name}

 
履行後,掌握台輸入成果以下:

<html> 
<head> 
  <title>Welcome!</title> 
</head> 
<body> 
  <h1>Welcome lavasoft!</h1> 
  <p>Our latest product: 
  <a href="http://www.百度.com/">百度</a>! 
</body> 
</html> 

尊重的用戶你好:

用戶名:lavasoft; 
URL:  http://www.百度.com/; 
姓名:  百度 
Process finished with exit code 0


3.基於注解的Spring+freemarker實例
web項目圖

web.xml文件

<?xml version="1.0" encoding="UTF-8"?> 
<web-app id="WebApp_ID" version="2.4" xmlns="http://java.sun.com/xml/ns/j2ee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd"> 
 <servlet> 
  <!-- 設置裝備擺設DispatcherServlet --> 
  <servlet-name>springmvc</servlet-name> 
  <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class> 
  <!-- 指定spring mvc設置裝備擺設文件地位 不指定應用默許情形 --> 
   <init-param>   
    <param-name>contextConfigLocation</param-name>   
    <param-value>/WEB-INF/springmvc-servlet.xml</param-value> 
    <!--默許:/WEB-INF/<servlet-name>-servlet.xml 
    classpath方法:<param-value>classpath:/spring-xml/*.xml</param-value>   
     -->   
    </init-param> 
  <!-- 設置啟動次序 --> 
  <load-on-startup>1</load-on-startup> 
 </servlet> 
 <!-- 設置裝備擺設映照 servlet-name和DispatcherServlet的servlet分歧 --> 
 <servlet-mapping> 
  <servlet-name>springmvc</servlet-name> 
  <url-pattern>/</url-pattern><!-- 攔阻以/一切要求 --> 
 </servlet-mapping> 
 <welcome-file-list> 
  <welcome-file>index.jsp</welcome-file> 
 </welcome-file-list> 
</web-app> 

 
springmvc-servlet.xml文件

<?xml version="1.0" encoding="UTF-8"?> 
<beans xmlns="http://www.springframework.org/schema/beans" xmlns:aop="http://www.springframework.org/schema/aop" 
  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:p="http://www.springframework.org/schema/p" 
  xmlns:mvc="http://www.springframework.org/schema/mvc" xmlns:context="http://www.springframework.org/schema/context" 
  xsi:schemaLocation="http://www.springframework.org/schema/beans  
  http://www.springframework.org/schema/beans/spring-beans.xsd 
   http://www.springframework.org/schema/mvc  
   http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd  
   http://www.springframework.org/schema/aop  
   http://www.springframework.org/schema/aop/spring-aop-3.0.xsd  
   http://www.springframework.org/schema/context  
   http://www.springframework.org/schema/context/spring-context.xsd"> 
 
   <!-- 默許注解映照支撐 --> 
   <mvc:annotation-driven/>  
   <!-- 主動掃描包 -->  
   <context:component-scan base-package="com.spring.freemarker" /> 
    
   <!--<context:annotation-config /> 設置裝備擺設主動掃描包設置裝備擺設此設置裝備擺設可省略-->   
   <!--<bean class="org.springframework.web.servlet.mvc.annotation.DefaultAnnotationHandlerMapping" 設置裝備擺設主動掃描包設置裝備擺設此設置裝備擺設可省略/>--> 
   <!-- 設置裝備擺設freeMarker的模板途徑 --> 
   <bean class="org.springframework.web.servlet.view.freemarker.FreeMarkerConfigurer"> 
    <property name="templateLoaderPath" value="WEB-INF/ftl/" /> 
    <property name="defaultEncoding" value="UTF-8" /> 
   </bean> 
   <!-- freemarker視圖解析器 --> 
   <bean class="org.springframework.web.servlet.view.freemarker.FreeMarkerViewResolver"> 
    <property name="suffix" value=".ftl" /> 
    <property name="contentType" value="text/html;charset=UTF-8" /> 
    <!-- 此變量值為pageContext.request, 頁面應用辦法:rc.contextPath --> 
    <property name="requestContextAttribute" value="rc" /> 
   </bean> 
</beans> 

 
 FreeMarkerController類

package com.spring.freemarker; 
 
import java.util.ArrayList; 
import java.util.List; 
 
import javax.servlet.http.HttpServletRequest; 
import javax.servlet.http.HttpServletResponse; 
 
import org.springframework.stereotype.Controller; 
import org.springframework.web.bind.annotation.RequestMapping; 
import org.springframework.web.servlet.ModelAndView; 
 
import com.spring.vo.User; 
 
@Controller 
@RequestMapping("/home") 
public class FreeMarkerController { 
 
  @RequestMapping("/index") 
  public ModelAndView Add(HttpServletRequest request, HttpServletResponse response) { 
 
    User user = new User(); 
    user.setUsername("zhangsan"); 
    user.setPassword("1234"); 
    List<User> users = new ArrayList<User>(); 
    users.add(user); 
    return new ModelAndView("index", "users", users); 
  } 
 
} 

 User類

package com.spring.vo; 
 
public class User { 
 
  private String username; 
  private String password; 
 
  public String getUsername() { 
    return username; 
  } 
 
  public void setUsername(String username) { 
    this.username = username; 
  } 
 
  public String getPassword() { 
    return password; 
  } 
 
  public void setPassword(String password) { 
    this.password = password; 
  } 
 
} 

 
 index.ftl文件

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> 
<html> 
<head> 
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> 
<title>Insert title here</title> 
</head> 
<body> 
<#list users as user> 
username : ${user.username}<br/> 
password : ${user.password} 
</#list> 
</body> 
</html> 

 安排到tomcat,運轉:http://localhost:8080/springmvc/home/index
  顯示成果:

 username : zhangsan
 password : 1234

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